Portable headphone amplifier/USB DAC

Item #: 063HAP50

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25 Reviews


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High-res audio

Add punch to your portable tunes

TEAC's portable HA-P50 lets you enjoy a reference-quality headphone listening experience wherever you go. Connect it to your player's headphone jack or digital output,  and this battery-powered headphone amplifier/digital-to-analog converter will deliver your tunes with clarity and punch that most smartphones and portable music players simply can't match. Plus, you can use TEAC's free HR Audio Player app to turn your compatible iPhone®, iPad®, or iPod touch® into a high-res audio player that supports PCM music files up to 24-bit/96kHz resolution, for exceptional playback through the HA-P50. The HA-P50 is even capable of playing up to full CD-quality 16-bit/44.1kHz PCM music files from a compatible Android phone's USB output.

TEAC HA-P50 and smartphone

Use the TEAC HA-P50 with your iPhone to enjoy powerful, high-resolution sound on the go.

Built to take on the road

TEAC built the HA-P50 tough to stand up to the rigors of travel. Its rugged aluminum body helps protect the circuitry inside from impacts. Raised guards on either side of the amp's compact chassis help protect your headphone's plugs and connection jacks from bumps, as well as prevent changes in volume when you're carrying the amp in your pocket or backpack. Recessed control switches reduce the chance of accidental access during playback. Plus, the HA-P50's built-in rechargeable lithium-ion battery can play your music continuously for up to 8 hours, so the show can go on for a long time.

Outstanding sound from your PC, too

The HA-P50 can also give your computer's audio performance a shot in the arm. Just plug it into a USB port on your PC to bypass the sound card inside your computer — a noisy environment prone to producing poor sound quality. The TEAC decodes your music files up to 24-bit/96kHz resolution through its own high-quality DAC. Your tunes will be output as fantastic-sounding analog audio signals ready for playback through your headphones, or even a pair of amplified desktop speakers.

Product Highlights:

  • built-in USB DAC supports digital PCM audio sources up to 24-bit/96kHz from Apple iOS devices with Lightning connector, and Windows or Mac computers (free software downloads from TEAC's website required for playback)
  • DAC supports up to 16-bit/44.1kHz digital PCM audio playback for compatible Android phones with AOA 2.0 protocol
  • high-performance headphone amplifier (8-ohm to 600-ohm headphone impedance recommended)
  • Burr Brown (TI) PCM5102 DAC for precise playback of digital music files
  • USB (micro type-B) input for charging & computer connection (cable included)
  • standard type-A input for select iPod®/iPhone/iPad or Android AOA2.0 devices (these devices must use their own respective cables, not included)
  • combination analog stereo minijack/optical digital input
  • stereo minijack output for driving standard headphones and line-level sources such as powered desktop speakers
  • gain select switch provides compatibility for a wide range of headphones and earphones
  • rotary aluminum volume knob with power on/off control
  • built-in lithium-ion rechargeable battery provides up to 8 hours of playback when using an Apple iOS device (up to 12 hours of playback using the optical or analog audio input)
  • USB battery charging (also charges via optional TASCAM DC power supply)
  • computer operating system requirements: Windows® Vista, Windows 7, Windows 8, Windows 8.1 and Mac® OS X® 10.6.4 (Snow Leopard) or later
  • TEAC HR Audio Player app required for high-resolution audio playback on Windows and Mac computers (free software downloads available from TEAC's website)
  • 2-3/4"W x 7/8"H x 5"D
  • weight: 8 ounces
  • warranty: 1 year
  • Our 60-day money-back guarantee

Why buy a headphone amp?

High-performance headphones need high-quality amplification to perform up to their full potential. If you connect them directly to the headphone jack on your computer, iPod®, or stereo receiver, you may be disappointed. A separate headphone amplifier sends a stronger, cleaner signal to your headphones.

TEAC HA-P50 Reviews

Average Customer Review:

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Great little product

Written By Phil, Connecticut on Wednesday, July 08, 2015

Crutchfield Customer Review (What's this?)

A great little product that makes a noticeable difference in music, especially hi resolution stuff. I have Pandora One which has hi res music and I hook it up directly to my iphone and sound is definitely a little better. Have used it just enough to notice that bass is cleaner and tighter as well as mid range. Have yet to use it with other applications and uses but so far is a keeper

Pros: Portable, rechargeable, nice volume knob (a small thing but it really is nice to actually have a knob instead of buttons on side of phone!), great size and design; versatility with jacks and connections

Cons: Not a huge audio difference, but very good for the money.

Incredible Product

Written By kleist, Utah on Monday, June 29, 2015

Crutchfield Customer Review (What's this?)

I just got this product a week ago. I have probably used it for 25 hours or so. On an airplane, it made my sound cancelling headphones actually function. Without it, the music was so soft, I couldn't hear it. Charge does last a long time and it is very easy to use.

Very Pleased

Written By MikeM, New Hampshire on Friday, June 19, 2015

Crutchfield Customer Review (What's this?)

I got this amp/DAC to replace my Fiio E17 and hands down this is much better and more versatile. I have used this with my computer, Ipod touch and my andriod S5 phone and have had flawless results with the HD600, ATH-M50s and the Momentums that I have tried. I have also used it as a straight amp with my Fiio X1 and the results are staggering compared to the headphone out of the X1.

Pros: Great tonal balance, Great detail, on the slightly warm side of neutral, works with everything. Can be charged via USB or independently of USB connection.

Cons: None

Increased detail, sound stage, and impact

Written By Dave, Minnesota on Friday, May 01, 2015

Crutchfield Customer Review (What's this?)

Thus far it works with all Iphone6 audio regardless of the App. So streaming like Spotify(phone and computer) is greatly upgraded at all quality levels. I mostly listen to Rock/Alternative and so far the Teac Amplifier has unveiled many additional layers to most of the collection regardless of source and headphones. I had to keep a mind on volume since at very high levels the music was still natural and never distorted or compressed. I bought this because it will work with many sources.

On my Harman Kardon NC headphones the bass is tight yet full, it removed some boom from the bass. Added so much detail and space to the highs without being shrill. Biggest thing I noticed is all of the layers in the recording that are all now highly intelligible, where before they all blended together. I can now hear some of the minute details of the recording never heard before. Most of all it added a level of realism and space not available from the phone or work computer.

On the Sennheiser HD-558 I noticed a lot more space and air than without, I found the sound to be better gain on high then low only with these headphones, better lows and highs. At the same volume level(spl not volume position) I noted more impact and detail, even though these are not as clinical as my Denon or Harman Kardon phones.

With my 2.1 Klipsch multimedia speakers the sound-stage was much deeper and higher, while each instrument was able to be placed in space.

Pros: More detail, space, and air. May sound a tad lean on the lows, but they are present just nice and tight. Can revel details in mass market recordings that previously difficult to distinguish. Vocals are slightly recessed back in the mix, but I feel more natural. Charges from computer USB, Apple USB charger to DC in, works with everything with a lightning/usb port I have tried! Works with Spotify and other music apps! Works with all Iphone6 sounds and apps. Small enough to fit in headphone case.

Cons: Will make you want even better headphones. So smooth and natural that I have to force myself to keep turning down the volume(I want to keep my hearing!) Non audiophiles probably won't be able to really tell the difference, but these are the same people that can't tell the difference between HDTV and Standard def. :) Small electronic click/bump when you turn off the amplifier. Takes a long time to charge. Spendy, glad it was on sale!

Teac Headphone Amplifier

Written By Mark K, San Diego, Ca. on Wednesday, April 29, 2015

Crutchfield Customer Review (What's this?)

Before amplifier, music play was dull. With the addition of Amplifier music is brighter cleaner sound

Cons: No complaints !

I had forgot how good music can sound

Written By MartinB, California on Monday, April 13, 2015

Crutchfield Customer Review (What's this?)

I had been thinking about a headphone amp for quite a while. mostly to power two headphones off my iPad while flying. I haven't tested it in the air yet, but on the ground it seems that it will work just fine for that application. I was interested to hear the difference in music quality so I ripped some CDs to AIFF and loaded them into my iPhone and installed the Teac app. Once I figured out how to load the uncompressed files through the app and got everything working, WOW I was blown away. I asked my kids to listen the the headphones and they were just stunned. They never knew the some sounded that good, with space and placement of instruments and vocals. I bought some HDTracks and am really enjoying the listening experience.

Pros: Long battery life, solid build, reasonable price

Cons: Had trouble getting music loaded through the app. It took about a week of futzing with it to figure out that in iTunes I needed to scroll down to see the app to transfer the music files.


Written By Rob, Phelan, CA on Monday, April 13, 2015

Crutchfield Customer Review (What's this?)

The TEAC HA-P50 headphone amp is a good addition to my on-the-go lifestyle. I strap my iPod to it plug in the headphones and its great sounding music to my ears. Crutchfield tech support and customer service were great in recommending this to me!

Pros: Compact. Not too expensive.

Cons: No case, no charger.

Great portable DAC-headphone amplifier

Written By Jin Man, Pasadena, CA on Thursday, April 09, 2015

Crutchfield Customer Review (What's this?)

Being a (small) portable headphone amplifier with DAC, it is a great device that greatly enhance sound output from any devices (that I carried to my trip) as Macbook Pro, iPhone, iPod, etc. Yes, I mostly use devices from Apple, however I also used it on other audiophile grade devices when back home and it was just great. I wanted to mention, specially, iPhone. I use iPhone 6 and connecting to the DAC function directly, using a short lightning to usb cable, was simple and with great results. Also, connecting via usb and later with optical cable with Macbook Pro, both ways were simple and real plug and play, of course it has to be checked the midi audio controller output is set (just once) to 24bit/96kHz. I used a Gradolabs SR225e (brand new) headphones and Shure e4C IEM (9 years old), although they don't need high amplifier output power, the sound was way better than just using the devices' headphone outputs, even not using the DAC function, the sound was somehow better. I listen to every kind of music, from Trip Hop to Gospel, from Classic to Rock, etc., and mostly FLAC or ALAC, Vinyl, CDs, and some poorly compressed MP3 or AAC. When listening to poorly compressed music files, it was really nice experience to hear less distortions from some songs and that some details were enhanced. I highly recommend this device to those who want an almost all-in-one device (DAC+headphone amplifier) and spend a fair amount of money. I believe this is one of the best value for the money.

Pros: Multiple inputs (optical/audio, usb, lightning) Portability Easy to use

Cons: None

Great for audio enthusiasts

Written By Matthew, Herndon, VA on Sunday, March 29, 2015

Crutchfield Customer Review (What's this?)

If you have an exceptional set of headphones and the ability to import high sample rate digital music to your iphone, this unit does make a difference. The D/A converter makes a more natural sound with more detail being audible. The low end, I think, especially sounds more realistic (less boomy). There is less difference using standard definition source material but it really depends on what you are listening to. If you want to bring high end audio to an Apple device, this is the way to do it.

Pros: Can use almost all high definition audio sources including FLAC.

Cons: Extra piece of Hardware to carry around

I am late to the game

Written By RichY, NJ on Monday, February 02, 2015

Crutchfield Customer Review (What's this?)

Read about these a few months ago and wish I had gotten on this bandwagon sooner. This is my 1st headphone DAC and I am very happy with it. It is super well constructed, has stellar sound, and Crutchfield was incredibly quick to process and ship. Minor point to consider is that the TEAC does pick up on digital radio noise when my Ipod or Ipad are nearby and downloading of doing a lot of computing. But the noise is quiet and short duration. Also the TEAC sometimes goes to sleep between songs if I pause it, even though the light it on on the DAC...this is similar to how Airplay behaves. Recommend this unit and the Crutchfield experience to everyone!

Pros: Affordable, very well made, transparent and powerful sound

Cons: Nothing big. Minor digital noise near smartphones and tablets, just separate if possible. Similar to what you hear in the car when the Iphone forces EMF into your stereo, but much quieter.


Written By Jeff, Boca Raton, Florida on Tuesday, January 27, 2015

Crutchfield Customer Review (What's this?)

I'm extremely happy with this dac/amp. I've got 2 headphones: Grado PS500 and Sennheiser Momentum. The unit makes a very significant difference on the Grados. To the point where I thought they sounded fantastic without the amp, but now that I've got it, it's hard to listen without it. Surprisingly, they sound best with the gain on HIGH and volume consequently down just a bit. The Momentums have an impedance of just 18 ohms. The gain sounds a lot better on low, but whatever improvement given by the amp is at best marginal compared to what is obtained on the Grados. I'm not sure if this a because of the lower impedance or lower quality, but I have a funny feeling it's more a function of quality than impedance. Overall I really like this amp and pretty much take it everywhere I plan on listening to music. Figure this "amp" will have an "amplifying" effect on your headphones: however good your cans are, it will make them sound 10-30% better. And yes, your file quality source will make an ENORMOUS difference in what your dac/amp can do with it.

Pros: GREAT sound. The DAC does exactly what you want it to: converts a lousy digital signal into a full, luscious analog sound. I'm not personally into blasting-loud music, but the volume control here is excellent and seems to maintain really good sound quality even played loud. Great build quality.

Cons: STUPID-ANNOYING mandatory software updates that ONLY work on PC's (and not MAC computers) in order to make the unit work with Android phones. I would personally prefer both a 1/4 inch jack in addition to the 1/8 inch jack. Using an adapter is just plain annoying. Also.... where's the CASE?!!!


Written By ruby2scala, New Jersey on Thursday, January 22, 2015

Crutchfield Customer Review (What's this?)

I was looking for a DAC + AMP (a bit more than entry level) that was easy to use at work, in the car and at home. TEAC HA-P50 is just right for that. What makes it nicer is that it comes with an ios app that allows for listening to music by bypassing apple's built in DAC. Overall, very easy to use.

Pros: Compact and well made. Great output.

Cons: none - so far (will have to test over time).

TEAC HA P50 Portable Headphone Amp

Written By Steve, Seattle on Wednesday, January 21, 2015

Crutchfield Customer Review (What's this?)

This is a great small portable amplifier that provides a greater of depth for my Grado headphones! A nice product!

Pros: Great sound amplification.

Cons: It would have been nice to have been able to have bought the adapter for charging the unity via household current.


Written By Michael, Spring, TX on Tuesday, January 13, 2015

Crutchfield Customer Review (What's this?)

This headphone amp is awesome. Small portable in size, big on sound. I have only used it with Shure, Klipsch, Polk, and AT in ear monitors. Sound is very clean and precise. Bass sounds tighter. If using with ipod touch or iPhone make sure you download the TEAC music app from apple store, it's free and makes everything work together for the best sound. One thing I wished it did though, is to charge ipod touch. When using with Galaxy S5 phone it will charge while using.

Pros: Small and compact. Awesome sound.

Cons: Will not charge ipod touch

Great amp

Written By Joey J, New Jersey on Saturday, January 10, 2015

Crutchfield Customer Review (What's this?)

This amp takes my Beoplay H6 headphones to a hole new level. Never thought a small piece like this amp would do such a great job.

Pros: Sound, size and price

Cons: Always looking for a smaller amp with same result

Great Little D/A Converter

Written By George, New York on Tuesday, January 06, 2015

Crutchfield Customer Review (What's this?)

Nice little piece. Had been looking for something to upgrade sound from IPAD Air on my headphones. At same time wanted to experiment with using PC and IPAD on my old time 2 channel stereo. This little guy works for both and am very satisfied. Headphones sound much better with more detail than the IPAD output jack. You'll get the best sound using the TEAC app but surprisingly this little box also works with your other music apps (radio, Sirius, Apple music) etc. once you have the TEAC app installed. On the home stereo, the TEAC gives you a listenable sound using headphone output to RCA jacks. Not as good as the CD player sounds (granted, this is a $5,000 CD player) but very listenable.

Pros: Nice compact unit - charges easily and lasts a long time. Small and easy go carry around. Versatile and good sound. TEAC app equalizer is very good. Nice solid construction.

Cons: Can't think of much that could be improved. Maybe some led showing charge remaining but I never ran out of charge. Gets a little cumbersome with wire from IPAD to TEAC then the headphone wire.


Written By Bill, Falls Church, VA on Wednesday, December 31, 2014

Crutchfield Customer Review (What's this?)

I give it 4 stars because it's too early to tell how much better it will sound. I'm breaking in my new sennheiser 800HDs with it and my brand new Grado PS1000es also. The sound continues to improve while the characteristic differences between the two headphones remain. The sound stages are very wide. There is very good clarity, detail and balance but there is still room for improvement especially with the Grados. Both headphones could use a little more warmth but only if nothing else is compromised. My 2 year old PSB M4U2s have never sounded this good before. The new headphones now clearly define the difference between very good and lousy recordings and all of this is at a 44.1k sampling rate. Be sure to install the TEAC Hi-Res Audio Player on your device. It improves sound quality even at 44.1k. iPads and iPhones both provide the same excellent result. I'll probably bump the rating up to a 5 after the phones are broken in but I'll also need to hear DACs in the higher price ranges. For what I paid, this baby is a steal. Buy it! You won't be sorry and you'll hear what you've been missing.

Pros: Very good to excellent sound.

Cons: I had to use a computer to charge the lithium-ion battery. There should be an external charger that comes with it. The one listed in the manual is apparently unavailable.

Very pleased!

Written By StephenS, Carmel, IN on Friday, December 19, 2014

Crutchfield Customer Review (What's this?)

This is a fantastic sounding little DAC/Amp with top notch build quality. I purchased it primarily as a desktop box for work, but I like that it is portable so that I can take it with me if needed. If portability was my primary concern I may have preferred something a little smaller as this is on the larger side of portable. I've been using it to drive NAD HP50s, AKG K545s and Shure SE535 IEMs and it works well with all three. I've found that it does a good job of not messing with the individual character of each of these phones while improving audio accuracy and volume. The difference is most noticable on the K545s which seem to be more finicky about their source than the other two. I will note, though, that although the unit worked straight out of the box when playing FLAC audio via Winamp, it did require a firmware update before working with Spotify.

Pros: Simplicity, build and sound quality.

Cons: Firmware update required for Spotify.


Written By DonG, California on Sunday, December 07, 2014

Crutchfield Customer Review (What's this?)

The TEAC HA P50 is an excellent choice for the IPad. Not only does it improve the sound of iTunes, the app allows me to tailor the sound to exact frequencies using the equalizer. My headphones are the BW p7. The TEAC has no problems driving them. The HA P 50 can play very loud, be careful. Definitely a thoroughly enjoyable listening experience.

Pros: Ease of use, excellent user app, plenty of volume, excellent sound

Cons: No AC adaptor

Superb product

Written By rich, Maryland on Saturday, December 06, 2014

Crutchfield Customer Review (What's this?)

This TEAC DAC/headphone amp is fabulous. First, the feature set is perfect, with all the common input possibilities (analog, USB, and optical) covered, and especially the ability to directly connect to later iPods (including the iPod Classic) and iPhones. This solves the problem that Apple has so far abandoned portable hi-res audio. Using the TEAC mobile app, one can use an iOS device as a source of hi-res audio (up to 96/24), yet have the interface control of iTunes, etc. The build quality seems very high, with a very solid feel and very smooth volume control. The sound quality is stunning. Extremely transparent top to bottom, with very smooth high frequencies and remarkably full and articulate bass (evaluated with NAD Visio HP50 headphones). The sound is so natural and free from any kind of harshness or muddiness that you will want to listen for hours at a time and critically re-evaluate your favorite music. The battery life is plenty long enough. Highly recommended.

Pros: Spectacular sound, features, build quality, and ability to use iPhone as source for up to 96/24 hi-res files.

Cons: None. Well, a carrying case would have been nice.


Written By Mike, WV on Thursday, November 13, 2014

Crutchfield Customer Review (What's this?)

Very nice solid portable piece. The difference in sound quality is substantial. Bass is much tighter and punchier. Treble is controlled and not harsh. The biggest improvement is that at higher volume levels there is no distortion. Using with Iphone 5c and Senn Momentum over ear. For mobile listening I couldn't ask for more.

Pros: Size, construction and sound quality

Cons: Having to buy an AC adapter seperately

Nice Portable Amp.

Written By DSims, Hartford CT on Friday, September 12, 2014

Crutchfield Customer Review (What's this?)

I purchased this amp for when I travel and needed something that works with my Samsung Galaxy S4 and my iPod Touch. It works well with both devices and sounds great with both devices playing FLAC files on my S4 and ALAC files on my Touch. The headphones that I am using are the Focal Spirt Pros and Grado RS2e. I was able to compare this amp with a FiiO E18 which is almost half the cost of the Teac. If you just need it for an Android device I would go with the FiiO it sounds as good. The Touch sounds much better on the Teac I'm not sure if the FiiO is just using an analog signal coming from the Touch and just using the amp portion. It is hooked up through a camera connection kit. The Teac sounds much cleaner the bass is tighter and the highs are just pure and crisp. Some other reviewer said this can only be charged with the Teac adapter or through a pc, that is incorrect. I used my iPod charger, a usb hub, and my UE Boom adapter with no problems. He also stated that it only works with iTunes that is incorrect also I've had no issues using Play Music, Spotify, and Vox.

Pros: Sounds Good Works with Android, iOS, PC, and Mac Well built

Cons: Price


Written By bsc547, Washington, DC on Saturday, September 06, 2014

Crutchfield Customer Review (What's this?)

The audio is truly enhanced. The product is well made. Unfortunately, the device is impractical since there is no way to charge the iPhone or iPad when it is connected to this device as the lightening port is already occupied by the TEAC device. According to the owners manual, you can only charge this device on a computer or with a TASCAM PS-P515U AC Adapter, sold elsewhere. It does not charge with an iPad charger. The iOS application for this device will only enhance music in iTunes. It does not access music from Beats Music or Spotify. The product does not support other portable music devices aside from a laptop PC or MAC. There was a firmware update available when I received this item. The update could only be installed using a PC, not a MAC.

Pros: It does what it is supposed to do well.

Cons: The inability to charge the iOS device through the TEAC USB port is a fatal flaw and I am returning this product. The very long charging time, 8 hours, further limits the device to occasional use only since you will need to charge the TEAC and the iOS device separately while on the road.

Awesome Quality.

Written By Scott P., Dallas, TX on Saturday, August 16, 2014

Crutchfield Customer Review (What's this?)

I was blown away by the sound quality when I switch from my onboard PC sound card to this DAC. Bass is much more accurate and tight, along with the rest of the spectrum. All of music suddenly had color to them. I've paired them with IE800 headphones and it allows me to pick up details I never notices before.

I'm currently using it as a desktop DAC and then it becomes portable when I'm on the go. As advertised, the battery lasts up to around the 8 hour mark. I used them for almost a full day of computer gaming. Can be charged and active simultaneously either through the 5V barrel plug input or the mini-usb port.

Build quality is very good, very solid. I very much like the volume knob they used which gives it a nice grip and feels solid too.

Is plug and play for PC and iOS as far as I've used it for. Doesn't need any app. installed if desired and allows my Spotify playlists to come to life :)

As far as I've researched online, for its price range it's a winner for sound quality and features. Need more DAC's of this quality at this price range.

Pros: Tight and natural output across the spectrum. Solid build. Plug and play for iOS and PC.

Cons: Could use a little bit of more EMI shielding but not really a problem. Is a bit heavy (like a pocket camera).


Written By John B, Orlando, FL on Saturday, August 09, 2014

Crutchfield Customer Review (What's this?)

Received this until last night and I couldn't stop listening. I'm using Grado PS500e headphones with this and WOW, just WOW! This blows away the Meridian Explorer as far as sound. I'm just in shocked at how much better my Grado's and music sound with this unit! And what a HUGE difference when listening to Spotify!

Pros: Well made Light perfect for iPhone Can replace the battery yourself

Cons: None

Hands-on research

What's in the box?

Download owner's manual

  • Portable headphone amp/USB DAC
  • 31" USB-to-DC cable
  • 32" microUSB-to-USB cable
  • 2 Rubber straps
  • Owner's Manual

Product Research


Portable Headphone Amplifier/USB DAC: The TEAC HA-P50 is a high quality, portable headphone amplifier with built-in 24-bit/96kHz USB DAC, providing high-resolution "go anywhere" listening from your Apple iPod/iPhone/iPad (w/ Lightning connector), Android smartphone/tablet (OS 4.1+), Windows PC, or Mac computer. The TEAC HA-P50 is the ideal headphone amplifier for the audiophile on the go. It allows you to take your high-end headphone listening experience outdoors and enjoy it wherever you're at. The HA-P50 packs a high-performance digital-to-analog converter and high power amplifier circuit into a compact body, to bring out the very best from your high quality headphones.

24-bit/96kHz DAC: The built-in BurrBrown PCM5102 digital-to-analog converter is capable of processing a variety of digital audio signals (from DSD to FLAC) up to maximum 24-bit/96kHz resolution.

Discrete Push-Pull Headphone Amplifier: The TEAC HA-P50 uses a top-flight OPA 1652 operational amplifier to process audio signals with maximum purity. The discrete push-pull circuit achieves a very low distortion rate of 0.001% (at 100mW + 100mW output) which IC-based amplifier headphone circuits cannot match, thanks to meticulous component selection and an absolute insistence on sound quality. The HA-P50 features a 3.5mm jack to connect your headphones.

  • Maximum Power Output: 160mW + 160mW (32ohms, 1kHz, 10% THD, JEITA), 65mW + 65mW (300ohms, 1kHz, 10% THD, JEITA), 35mW + 35mW (600ohms, 1kHz, 10% THD, JEITA)
  • Total Harmonic Distortion: 0.001% (32ohms, 1kHz, 100mW + 100mW Output Power, JEITA)
  • Headphone Impedance: 8Ω to 600Ω
Note: The HA-P50 features a high/low gain selector which enables output gain to be matched to the impedance of the headphone being used. An important feature for those who use top quality high-impedance headphones.

MicroUSB (Type-B) Port: The TEAC HA-P50 accepts input from your computer via its microUSB (type-B) input. Its capable of high-resolution 24-bit/96kHz sound source playback when used with the TEAC HR Audio Player app installed on your Windows PC or Macintosh computer (free to download). A 32" microUSB (type-B) to USB (type-A) cable is supplied to connect your computer to the TEAC headphone amplifier/USB DAC.

  • Windows Compatibility: The HA-P50 is compatible with Windows Vista, 7, 8, and 8.1 (32- or 64-bit editions).
  • Mac Compatibility: The HA-P50 is compatible with Mac OS X 10.6.4 (Snow Leopard), OS X 10.7 (Lion), OS X 10.8 (Mountain Lion), and OS X 10.9 (Mavericks)

USB (Type-A) Port: The TEAC HA-P50 headphone amplifier/USB DAC is fitted with a USB (type-A) port which allows you to connect your Apple iOS device (w/ Lightning connector) or Android smartphone/tablet (OS 4.1+)  with the cable that came with your mobile device. Digital audio signals stored on your Apple iOS or Android device are extracted digitally via USB and processed through the HA-50's high-performance built-in digital-to-analog converter, with minimal sound degradation and allowing the purest playback quality, with maximum fidelity. The free TEAC HR Audio Player app is required for Apple iOS device connection and offers high-resolution 24-bit/96kHz audio playback. Android devices do not require this app, but are limited to 16-bit/44.1kHz.

  • Apple iOS Device Compatibility: iPhone 5s, iPhone 5c, iPhone 5, iPad Air, iPad mini with Retina display, iPad (4th generation), iPad mini, and iPod touch (5th generation); all with iOS 6.0+.
  • Android Device Compatibility: Android smartphone or tablet with  Jelly Bean (4.1) operating system or newer installed.

Note: The HA-P50's USB (type-A) port will not charged your connected device's battery.

TEAC HR Audio Player App (for Apple iOS): The TEAC HR Audio Player App turns your Apple iOS (6.0+) device with Lightning connector into a high-resolution audio player and delivers the streamed digital audio (including DSD & FlAC) to the HA-P50 headphone amplifier/USB DAC for 24-bit/96kHz playback. You will need to install your high-resolution files using iTunes onto the Apple iOS device using the HR Audio Play App (this is done differently from the normal iTunes sync procedure). You also get access to your Apple iOS devices' standard Music Library. The HR Audio Player App is designed to be user-friendly and offers these additional features:

  • Song/Artist Information + Album Art: On the main screen during playback, you can see the file format of the file you are playing and the sampling frequency sent to the connected output device, as well as display the lyrics and album artwork.
  • Playback Controls: You can also use this app to search a track in the list, change the playback order, and add a track to it; all with intuitive operation. In addition to Repeat playback (single or all tracks in the same list) and Random playback (in the same list), Crossover playback, which joins tracks smoothly using fade in and fade out, is available.
  • Background Playback: The app plays in the background so that you can enjoy high-resolution music even while you use another App (except for another music player app). Just like the standard iOS music player, you can operate the HR Audio Player App from the iOS Control Center so that you can play/pause and skip immediately when you are using another app or when you are in the home screen.
  • Equalizer: The app has a built-in graphical equalizer with up to 1,000 settings, so you can load and adjust equalizing curves based on the type of music you are listening to or type of headphone you are using. Simply touch the equalizing curve on the app screen to select the exact frequency you want to adjust. The RTA (Real-Time Analyzer) shows you real-time levels for each frequency of the music you are playing, so that you can adjust intuitively. And, since it also shows you the selected frequency and its incremented/decremented value in numeric values, you can equalize very accurately by checking those values. Linear FIR equalization is also applied for better phase performance, with two EQ modes; a standard SD mode and a high-quality HD mode with 64-bit internal processing
  • Facebook & Twitter Shortcuts: Shortcut menus are provided so that you can share your friends via e-mail or Facebook and tweet in Twitter about the track you are playing. Express the excitement of the high-resolution sound source immediately.
Note: Supported iOS devices include iPhone 5s, iPhone 5c, iPhone 5, iPad Air, iPad mini with Retina display, iPad (4th generation), iPad mini, and iPod touch (5th generation); all with iOS 6.0+.

Combined Digital/Analog Input: This versatile headphone amp/USB DAC employs a combined optical digital input and analog audio input terminal (3.5mm) that self-detects digital or analog incoming signals. This combo-input then passes the digital or analog audio signal (PCM only) through its sophisticated amplifier circuits, letting you enjoy a high quality headphone listening environment wherever you are.

Full-Aluminum Chassis: Constructed from durable aluminum, the HA-P50's compact, flat body measures just 21.7mm thick, ideal for mobile environments where toughness, small size and lightness are essential. Designed from the outset for mobile use, its compact aluminum volume knob has just the right torque to allow fine volume adjustment. Raised guards on either side prevent accidental volume changes when the HA-P50 is being carried in a pocket or bag, as well as protecting headphone plugs from bumps.

Portable: The HA-P50 comes with two rubber fixing-straps for securing it to an Apple iPod/iPhone or Android smartphone, making the HA-P50 very easy to carry around.

Rechargeable Battery: The TEAC HA-P50 has a built-in 2100mAh Li-ion battery, allowing a maximum of 8 hours of continuous battery life. The included USB/DC cable allows recharging from a computer's free USB (type-A) port. Thanks to its auto power save function, the unit goes into sleep mode after 30 minutes if it has failed to detect a sound signal, or if there's no headphone jack plugged into the headphone port.

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Product reviews from the Crutchfield Labs

Added dynamic range for even the least expensive headphones.

Written by Chris, Advisor, on 11/7/2014 11:48:00 AM

I've got to spend quite a bit of time with this neat little box now and I'm in love with it.

I've used the HA-P50 with headphones as cheap as some old Sony MDR-XD100's, all the way up to the Bang & Olufsen BeoPlay H6's I'm currently listening to. The bottom line is that every single headphone I've plugged in has came to life with better bass extension, crisper high range, and more discernible mid-range.

I can't believe the added dynamic range I'm experiencing. The BeoPlay H6 showcased this more than any other.

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