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Digital media receiver (does not play CDs)
Our take on the Sony DSX-A40UI by Crutchfield's Jon Paulette
Go digital without going broke
Ditching the discs and going digital doesn't have to break the bank. Sony's DSX-A40UI digital media receiver offers an impressive list of features for its price range, along with plenty of connections for all your devices.
Everything you need
Bells and whistles are nice, but you don't necessarily need them to go all-digital in your car. The DSX-A40UI has all the basics covered, starting with a sleek-looking removable faceplate that also offers the functionality you need to enjoy your digital music library.
A handy USB port gives you lots of options for enjoying your digital music. Plug in a flash drive that you've loaded up with music, or connect your iPod®, iPhone®, or Android™ to listen to music and charge the device. You'll be able to use the receiver's controls to search through your music, and Sony's Quick-BrowZer® feature makes it easy to find music by artist, album, genre, song or playlist. You can also connect a satellite radio tuner or a portable music player to the front auxiliary input.
Adjust and expand
The built-in amp ensures that your music will come through loud and clear, even when you're really cranking it up. If you're the kind of person who likes to fiddle with the settings to suit your exact tastes, you'll be surprised at how much adjustability you get with the DSX-A40UI's 3-band equalizer. If you're thinking about adding an amplifier in the future, you'll find a set of 2-volt preamp outputs on the back panel.
This receiver offers a simple control panel with USB and auxiliary inputs.
Whether you're listening to digital music or your favorite AM/FM radio station, you'll be able to see what's playing on the single-line LCD display, which shows you track info, station ID and a clock. The faceplate's red button illumination adds a touch of style. You also get a handy remote control that lets your passengers play DJ while you drive.
Want to keep your car's steering wheel audio controls?
In most cars, you'll need an adapter to retain those controls with this car stereo. Connect a few wires, then program the adapter for your particular car and radio, and you'll retain the convenience of your steering wheel controls. You'll see the adapters that work with your vehicle when you add this receiver to your cart.
iPod/smartphone note: If you're going to use your iPod or smartphone with this receiver, be sure to check "Details" for compatibility information.
Great head unit for low price. Works perfectly with my iPhone lightning cable and even external usb bluetooth adapter. Sound quality is good compared with price.
Matas, Lithuania, Kaunas
What's in the Box:
- Digital media receiver (w/ 10A fuse inserted into chassis)
- Face (installed)
- Sleeve (installed)
- Trim ring (installed)
- Wiring harness
- Remote control (RM-X211)
- CR2025 Lithium battery (installed in remote)
- 2 Radio removal tools
- 4 Flathead ISO-mount screws
- Face-fixing screw
- Operating Instructions (En/Fr)
- Installation/Connections sheet (En/Fr)
- US Limited Warranty sheet
- Canada Consumer 1 Year Warranty
- Face fixing screw note
- digital media receiver with AM/FM tuner (does not play CDs)
- detachable face with single-line display
- USB port accommodates Apple devices, select Android phones, and thumb drives
- MP3/WMA compatible
- built-in amplifier (18 watts RMS CEA-2006/55 peak x 4 channels)
- 3-band equalizer
- remote control
- built-in iPod, iPhone, and iPad control (see Details tab for model compatibility)
- inputs: front USB port, front auxiliary input
- outputs: 2-channel preamp outputs (2-volt rear)
Other features and specs:
Sony DSX-A40UI Reviews
Average Customer Review(s):
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Features and Specs
|Memory Card Slot||USB memory|
|Satellite Radio Ready||No|
|RMS Power Output||18 watts|
|Peak Output||55 watts|
|RMS Power Bandwidth||20-20kHz|
|Sub Preamp Outputs||No|
|Switchable Rear Preamp Outputs||No|
|Preamp Voltage||2 volts|
|Key Button Color||Red|
|Steering Wheel Control Compatible||Adapter required|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
|FM Sensitivity||8 dBf|
|Radio Data System||Yes|
Front-Panel USB Port: The Sony DSX-A40UI digital media receiver's front-panel USB (type-A)port can be used for plugging in a USB Mass Storage Class (MSC) device; such as select Android smartphones (Froyo/Gingerbread OS only), portable digital audio players, or USB thumbdrives. The head unit can play music files stored on the USB device in MP3 or WMA formats (up to 320 kbps). The head unit can recognize up to 128 music folders and 512 music files per folder on a single USB Mass Storage Device. The DSX-A40UI offers the following USB search, playback, display, and charging functions.
- Search Modes:
- Quick-BrowZer: allows you to search for a track on a connected USB device easily by category (Genre, Artist, Album, or Playlist)
- Jump Mode: gets you closer to the song you want by allowing you to fast forward through a music category in 10% increments
- Playback Modes:
- Repeat: repeat a single track or repeat an entire album
- Random: shuffle all tracks or a specific album
- Display Information:
- Numeric Text: track number and elapsed playing time
- Alphanumeric Text: song title, artist name, and album label
- Charging: USB devices that can be charged via USB will be charged when plugged into the digital media receiver's USB port (1A) and the vehicle's ignition switch is set to ACC or On.
Note: Not compatible with newer Android smartphones and tablets which have an operating system of Honeycomb or newer. Not compatible with USB hubs.
USB 1-Wire iPod/iPhone Control: The DSX-A40UI's front-panel USB port allows you to connect your iPod/iPhone via the iPod dock or Lightning connector-to-USB cable that comes with your iPod or iPhone (not included with the head unit). This USB 1-Wire for iPod/iPhone connection lets you directly connect, charge, & control select iPod/iPhones via the USB jack on the front of the unit, as well as view metadata like song title & artist name on the front display.
- Bypass iPod DAC: The USB connection allows your iPod/iPhone's stored music to be loaded instantly to the head unit and sound quality to be maximized through the head unit's 1-bit D/A converter (bypassing iPod/iPhone DAC), allowing for a Signal-to-Noise ratio up to 120dB.
- Music Navigation: You can choose to control the iPod/iPhone from the head unit or from your iPod/iPhone's clickwheel or touchscreen. The Quick-BrowZer feature allows you to browse your iPod/iPhone's music library by Artist, Album, Song, Genre, Playlist, or Podcast from the head unit. The unit also offers Repeat (Track/Album) & Shuffle (Album) playback modes for iPod/iPhone.
- Information Display: The head unit will display your iPod/iPhone's music file information; including Track #, Elapsed playing time, Song title, Artist name, and Album label.
- Charging: While connected and the ignition switch is set to ACC or ON, the head unit's USB (1A) connection will power and charge your iPod/iPhone. If your iPod/iPhone has no initial battery charge, then this unit will not recognize it.
Apple Device Compatibility Chart: The Sony DSX-A40UI is "Made for iPod/iPhone" compatible and supports the following iPod/iPhone model features (as of 11/25/2013):
|Apple Device||Generation||Tested Version||Media Type||Control Type||Display Type||Charge|
|Audio||Video||Head Unit||iPod||Artist/Song Text||Track Info|
Note: Apple iPod/iPhone software updates may change functionality results. If you download a newer software version, you may need to reset the head unit and your iPod/iPhone to regain functionality. If this doesn't work, you may need to wait until a newer software update is available.
Front-Panel Aux Input: A front-panel stereo 3.5mm mini-jack is provided to allow the connection of a portable audio source. Just connect your portable digital music player to this unit, and you can listen to the audio from the portable player through the speakers in your mobile audio system. The volume level of the auxiliary input is adjustable from -8 to +18 dB to compensate for any difference between the unit and your portable device.
Digital Clarity Tuner: The Sony DSX-A40UI is equipped with a Digital Clarity Tuner for clear AM/FM stereo sound with digital processing technology. The Digital Clarity Tuner delivers industry leading signal to noise ratios, lower interference, better multipath rejection and better stereo separation
RDS: The Radio Data System (RDS) feature displays radio broadcast information such as artist & track information when listening to compatible AM/FM stations.
Preset Stations: The radio features 5 memory bands to store and receive AM/FM stations. You can store up to 6 presets each in band (FM 1-3, AM 1-2).
Best Tuning Memory (BTM): This feature automatically selects stations with the best signals within the selected band (FM 1-3), AM 1-2) & stores them in order of their frequency.
Manual/Seek Tuning: The DSX-A40UI allows you to manual tune or seek tune AM/FM stations.
- Manual Tuning: You can manually tune & find your favorite radio stations one by one.
- Seek Tuning: You can use the seek button to help you search quickly through the available AM/FM stations.
Dynamic Reality Amp: The redesigned, internal Dynamic Reality Amp circuitry boasts 47% lower internal resistance compared to conventional receivers, delivering 55 watts x 4 channel (peak power) to your interior speakers. This allows you to crank up the volume while maintaining low distortion, low noise levels and smooth frequency response. Your music isn't just louder, its clearer too. The power output specs for the DSX-A40UI are as follows:
- Continuous Power Output: 17 watts RMS x 4 channels (at 4 ohms, 20Hz-20kHz, 1% THD-N)
- Peak Power Output: 55 watts x 4-channels (208 total watts)
Note: The power specifications for the Sony DSX-A40UI are compliant with the CEA-2006 Mobile Amplifier Power Testing and Measurement standards from the Consumer Electronics Association (CEA). These standards were developed as a way to equitably compare power specs from model to model and between manufacturers.
EQ3 Stage 2: The Sony DSX-A40UI features an EQ3 Stage 2 equalizer with 8 preset equalizer curves for various types of music. You can choose from Xplod, Vocal, Edge, Cruise, Space, Gravity, Custom, or Off. The Off mode provides a flat response. The Custom mode allows you to manually adjust the Low (60 Hz), Mid (1 kHz), & High (10 kHz) frequencies from +/-10dB.
Loudness: This features reinforces bass & treble for clear sound at low volume levels.
2V/2Ch Preamp Output: The Sony DSX-A40UI is equipped with a 2-volt preamp output for connecting an external amplifier. The preamp output is full-range and will fade with the rear speaker channels (it is not switchable).
Beep Tone: The in-dash head unit provides an audible beep to confirm button operation. This function can be turned On or Off.
Detachable Face w/ Caution Alarm: The DSX-A40UI features a detachable face for theft prevention. No face case is included with this unit. An optional soft face case (142DFC1X, sold separately) can be purchased for this unit. A face-fixing screw is supplied for making the face non-detachable, if desired. If you turn the ignition switch to the Off position without detaching the front-panel, the caution alarm will sound for a few seconds. The alarm will only sound if the built-in amplifier is used.
Single-Line LCD w/ Auto Scroll: The easy-to-read single line LCD shows source information, clock, station ID, and track data when playing back digital files from your external USB devices. The Auto Scroll feature allows long displayed items to scroll automatically across the display when the track is changed on a USB device.
Display Illumination/Clock Display: Pressing the Source/Off button once will switch sources. Pressing and holding the Source/Off button for one second will turn off audio output, but the clock display and button illumination remain on. To turn the unit off completely, you must press and hold the Source/Off button for two seconds.
Dimmer: The DSX-A40UI feature a dimmer mode to dim the brightness of the display. You can choose from either Dimmer On or Dimmer Off.
Auto Off: When installing in a vehicle without an accessory power wire at the radio location, you can set the unit to turn off all lighting a set amount of time after you turn the power off. The Auto Off feature can be set to 30 seconds, 30 minutes, 60 minutes, or No.
Wireless Remote Control: The head unit comes supplied with an IR wireless remote control (RM-X211) for easy operation. The included wireless remote allows you to control the basic functions of the Sony head unit while keeping your eyes on the road.
Steering Wheel Remote Compatibility: The head unit features an OEM steering wheel remote control input on the rear of the unit that lets you keep your vehicle's factory radio steering wheel remote controls when used with an optional steering wheel audio control adapter (sold separately). Please consult Crutchfield's Outfit My Car to see if your vehicle is compatible.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.
Why did you buy this?
I trust Sony equipment and the specs for this radio were the best in its price range. [ ROBERT J Jul 21, 2016 ]
I love Sony, my tv and Blu-ray player and sound system are Sony [ Jeffrey Jun 22, 2016 ]
Nice inexpensive upgrade from my previous radio. [ Christine Jun 08, 2016 ]
Mainly because of the price, the fact that it has USB and AUX support. I am replacing an older Sony Xplod deck that is failing. I love the power output of the unit, it powers my Clarion 6x9s and 6.5s perfectly! [ G May 16, 2016 ]
The head unit fits the dash perfectly [ Bill May 13, 2016 ]
It's supposed to fit in my car and I can use the existing factory mount brackets ,saving me the trouble,time and money of buying an additional dash kit that I won't need. [ Onyx Apr 15, 2016 ]
I wanted something simple without too many lights and buttons, this seems like it will work for me. Also the display looks like it will be easier to read. I hope so. [ roberto Apr 07, 2016 ]
I like Sony products very much. I think they are built tough and easy to use. [ Benjamin Mar 28, 2016 ]
20 questions already asked
My son uses his iPhone 5 using Spotify and it works fine [ gabriel May 21, 2016 ]
The Sony radio works fine with any I phone, but having problem with android, maybe is the settings. [ Michael May 21, 2016 ]
1 answer I recently installed this unit into a 2006 Nissan Altima and after I installed it was very disappointed with how little power and volume my speakers had opposed to the original stock radio. I tried adjusting the gain and the EQ presets but still had little effect on the volume of sound it was able to produce. Any ideas why it's not getting enough power? It says it's a 4 channel 55 watt max output which would seem to be plenty of power if it in fact was receiving that amount of power. [ Brandon Apr 30, 2016 ]
With your purchase from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings and connections on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. [ Kenny Apr 30, 2016 ] Staff
The bass and treble can be adjusted, but it is not labeled that way. The adjustments are found under EQ settings. Press the round select knob to go into "Sound Setup" (note - do not press and hold; that takes you to "General Setup"). After entering "Sound Setup", rotate the knob to select the desired item, then press it. You will see the following: EQ3 PRST, Balance, Fader, Aux Vol. Select EQ3 PRST, then CUSTOM, and then you will see EQ3 LOW, EQ3 MID, and EQ3 HIGH. [ Alan Apr 12, 2016 ]
yes you can [ PETER F Apr 11, 2016 ]
Yes, you can, it had pre loaded settings or you can make a custom one. [ Marco Christian Apr 11, 2016 ]
Yes. There are preset EQ's (pop, rock, Xplod, talk, etc) and a custom EQ that you can adjust to your taste (high, mid, low). [ Audie Apr 11, 2016 ]
Yes [ broc hunter Apr 11, 2016 ]
1 answer How bright is the LCD screen; seems that many radio's are like spot lights, almost comparable to turning on the overhead lights in a vehicle. We are looking for a radio without all the bright blue lights, we want to see the LCD but not so bright you can see the LCD screen for outer space. Bright? [ Anthony Mar 22, 2016 ]
The LCD is an appropriate level of lighting. It is not too bright, but it is easy to read. It is not distracting or obtrusive. [ Kevin Mar 22, 2016 ]
I'm not sure what you mean by "the 2.1 configuration" but the stereo does offer a pair of RCA pre-amp outputs for providing signal (full range/rear fading) to an external amplifier. The stereo's built-in amp (17 watts RMS x 4) really isn't enough to power external subwoofers so you'll likely need to add an amp. I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=5 [ Ryan Feb 19, 2016 ] Staff
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you. [ Jeff Dec 10, 2015 ] Staff
Yes it connects no problem [ THOMAS C Nov 05, 2015 ]
yes works great! [ FRED Nov 05, 2015 ]
NOt yeah [ VIP SECURITY Nov 05, 2015 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy Jul 27, 2015 ] Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy Mar 28, 2015 ] Staff
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you. [ Krissy Mar 23, 2015 ] Staff
I'm sorry I can't answer from experience as I have only tried apple devices with this unit. Maybe someone else who has purchased this unit has? [ FRANK Mar 01, 2015 ]
Hi the receiver is compatible only with apples devies. No work with android divies. [ VIP SECURITY Feb 27, 2015 ]
Don't know, sorry! [ FRED Feb 26, 2015 ]
It will work as long as the phone has Bluetooth. [ THOMAS C Feb 26, 2015 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Greg Feb 05, 2015 ] Staff
This radio will not work on European tuning bands. [ Jeff Feb 04, 2015 ] Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy Dec 31, 2014 ] Staff
I forwarded your question to an Advisor and they responded with the following: We would need to know if the Mustang has the Mach Audio package or not before we could properly recommend some options If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Nov 14, 2014 ] Staff
I think I understand what you are talking about and I would have to say, no that it would not fit. [ Donna May 20, 2014 ]
I don't believe that any drive is going to fit with the cover closed. [ KEVIN May 20, 2014 ]
This does have preamp outputs that you could connect to an amp for subwoofers: 2V/2Ch Preamp Output: The Sony DSX-A40UI is equipped with a 2-volt preamp output for connecting an external amplifier. The preamp output is full-range and will fade with the rear speaker channels (it is not switchable). [ Jeff May 12, 2014 ] Staff
I hate this radio and am sorry I bought it. Spend a little more and get something you can enjoy. [ CHARLES T May 09, 2014 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy Mar 10, 2014 ] Staff
5 answers Does this radio play AAC files (made in Itunes) from USB stick (I want to use USB stick, not an ipod)? I am confused about this, since on some sites it mentions AAC files, but on the Sony site it only says MP3 and WMA files. Would be very grateful for an answer because I'd rather know beforehand than have to install it first to find out.... [ ETonnard Feb 15, 2014 ]
Have to try it I don't know [ SALVADOR Feb 16, 2014 ]
I'm sorry, I simply don't know. I don't use any apple products precisely because of compatibility problems. All of my rips are mp3 or flax. [ SANTIAGO Feb 16, 2014 ]
I'm sorry, I simply don't know. I don't use any apple products precisely because of compatibility problems. All of my rips are mp3 or flax. [ SANTIAGO Feb 16, 2014 ]
I have not attempted to try AAC files via USB drive. I could give it a try in a couple of days. It's in my son's car and he is out of town at the moment. Let me know if you want me to give it a shot! [ FRANK Feb 16, 2014 ]
To be honset I am not sure..I bought this as a christmas gift for someone else...I do know that they play music all the time with usb and I have seen them download straight from youtube with real player conversion..hope this helps..sorry I could not be more helpful...Raymond Clifford [ RAYMOND C Feb 16, 2014 ]
2 answers My question relates to the scrolling information, either when playing an ipod through the USB or from the radio information when playing FM, I find it highly annoying when a radio scrolls the information and does not stop, while listening in either mode can you turn this off? Can you simply have the radio station with no song scrolling information? Also can you simply have the time(clock) on when listening to an Ipod through the USB? Thanks. [ J Jan 10, 2014 ]
We returned this model; wanted something with a CD player as well. Hate that I can not help ya. [ Rebecca Jan 12, 2014 ]
Yes there is a menu if you hold down the big button to turn scrolling off. You can have the clock on while listening by pressing the Display button till it is displayed. [ ANDREW Jan 10, 2014 ]