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Phono preamplifier for moving magnet and moving coil cartridges with USB output

Item # 745PP4

The built-in USB port and included software let you connect to a computer so you can convert LPs to digital files.

The built-in USB port and included software let you connect to a computer so you can convert LPs to digital files.

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Item # 745PP4

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About the NAD PP 4

Dave Bar

Turn your irreplaceable vinyl LPs into digital music you can enjoy anywhere

Missing the music in your record collection because your receiver lacks a phono input? Here's a way to get back in the groove. Add the NAD PP 4 Digital Phono/USB preamplifier to your system, and you can connect your turntable to any of your receiver's line-level inputs. And your options don't stop there.

Turn your irreplaceable vinyl LPs into digital music you can enjoy anywhere

Missing the music in your record collection because your receiver lacks a phono input? Here's a way to get back in the groove. Add the NAD PP 4 Digital Phono/USB preamplifier to your system, and you can connect your turntable to any of your receiver's line-level inputs. And your options don't stop there.

The PP 4's USB port lets you connect your turntable to a computer so you can convert LPs to digital files and transfer your record collection to recordable CDs using the included VinylStudio™ Lite software. A line level input also lets you burn audio CDs from other analog music sources, such as a cassette deck. And this preamp features a recording level control to help optimize the analog-to-digital conversion process.

Need a cable?

This phono preamp does not come with an RCA cable to connect to your receiver or amp.


Product highlights:

  • phono preamplifier with built-in analog-to-digital converter to convert vinyl to digital files
  • includes VinylStudio Lite software for converting LPs to CD (Windows and Mac compatible)
  • purchase of full version of VinylStudio software required for converting individual tracks to MP3 or AAC
  • compatible with moving magnet and moving coil phono cartridges
  • line-level input for connecting another analog audio source like a cassette deck
  • line-level audio output
  • USB port for connecting to a PC (includes USB cable)
  • outputs 16-bit/48kHz PCM digital audio
  • recording level control (0 dB to -6 dB)
  • external power supply for reduced noise and interference
  • signal-to-noise ratio: 76 dB (MM); 78 dB (MC); 115 dB (line level)
  • THD: less than 0.03% (MM & MC)
  • RIAA response accuracy ± 0.3 dB (20-20kHz)
  • 5-3/8"W x 1-7/8"H x 4-3/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # PP4

What's in the box:

  • Digital phono preamplifier
  • AC adapter (w/ attached 6' DC cord)
  • 59" USB cable (USB type-A connector on one end and USB type-B connector on the other)
  • Warranty information
  • Instructions/Specifications on box

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More details on the NAD PP 4

Stacey B.

Features & specs

Cartridge Type MM, MC
Subsonic Filter No
Cartridge Loading Fixed
Adjustable Resistance Load No
Adjustable Capacitance Load No
Vacuum Tube No
RCA Inputs 3 Pair
XLR Inputs No
RCA Output 1 Pair
XLR Output No
USB Output Yes
3.5mm Output No
Optical Output No
Coaxial Output No
Signal-to-noise Ratio (MM) 76
Signal-to-noise Ratio (MC) 78
The NAD PP 4 replaces these items:

Product Research


Overview: NAD's PP-4 combines the award winning PP-2I MM/MC Phono Preamp with a high quality Analog-to-Digital converter and USB interface. Utilizing the downloadable VinylStudio Lite PC Software, you can convert records and tapes to CD. The PP-4 also includes the same analog outputs as the PP-2I for connection to an analog stereo system.

Note: The downloadable VinylStudio Lite PC software has very limited usage. In order to save tracks as MP3 or MP4/AAC files, you must upgrade to the VinylStudio full version for $29.95.

RIAA EQ: The PP-4 phono preamp consists of a low noise discrete MC preamp followed by a low noise opamp-based RIAA MM stage incorporating a 12dB/octave infrasonic filter to attenuate turntable "rumble" noise. The output feeds the Line Output as well as the soft clipped input of an A/D converter with USB Output. This can be connected to any PC for recording from vinyl disc to a hard drive. The built-in passive equalizer curve follows the RIAA standard within 0.3 dB, measured from 50 Hz to 20 kHz.

USB Port: Using the USB (type-B) port on the front-panel, the phono signal can be routed to your computer; with the downloadable VinylStudio Lite software LPs are easily converted to CD (Macintosh version available on NAD's web site). The PP-4 has an analog to digital converter (A/D) that optimizes the gain for the best signal to noise ratio and lowest distortion. The USB output is 16-bit linear PCM signal sampled at 48 kHz.

MM/MC Compatible w/ Discrete RCA Inputs: The PP-4 accepts inputs from either moving magnet (MM) or moving coil (MC) cartridges. On the rear panel there are separate RCA inputs for MM and MC, and a switch to choose which you are using. 

Line Input: An additional stereo RCA line input allows you to send a standard source to the internal A/D converter and use the included software to record to your computer. A switch on the rear panel selects the phono or line input. The line input can also replace the input on your receiver taken by the PP-4. 

Line Output: A rear panel stereo RCA output is used for connecting the phono preamp to your home stereo receiver.

Ground: A post on the rear panel provides easy grounding for your turntable.

Volume Control: The PP4 front-panel volume control applies to both the MM and MC inputs and the Line In inputs; 0 to -6dB reduces the level via the USB output to the PC to prevent clipping.

External Power Supply: The NAD PP-4 operates off of standard household current (120V AC, 60Hz) using the supplied AC power adapter (23.5V DC, 60mA). The external power adapter is separate from the phono preamp to further improve sound quality.

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Customer Q&A

5 questions already asked

Hello. Is this phono preamp compatible with Audacity?
[ Sebastian  Apr 10, 2023 ]
1 answer
This could be used to input your LP audio into Audacity.
[ ZACHARY  Apr 10, 2023 ]  Staff
HOW TO HOOK UP NADPP4 TO PIONEER SC-LX801 RECEIVER already using cd line can i use game line and do you have any instructions for this preamp?also when i try to confirm email address it just takes me back to this page
[ TIM  Feb 13, 2022 ]
1 answer
This can connect to any preamp level audio input on a receiver regardless of the name given to that input by the receiver manufacturer. You can use the Game line input on your receiver to connect it. We give our customers lifetime technical support on the gear they get from us and send the toll free phone number to our technical support on the order invoice. Also, we keep a copy of the owner's manual online and the link to download it found in the "What's in the Box" section of the web page
[ JASON  Feb 16, 2022 ]  Staff
How to do I setup the NAD PP4 with AXR85 and Pro-Ject T1 Phone SB?
[ PETER  Jun 08, 2020 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. 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. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ KRISTINA  Jun 23, 2020 ]  Staff
I need info on how to connect In/Out Jacks to convert analogue to digital tape from a tape cassette via NAD 3020 Amplifier using NAD PP 4 please? Any assistance appreciated.
[ Dave  Feb 19, 2015 ]
11 answers
You will connect the tape deck Line Out to the PP 4 Line In, Make sure the switch is selected to Line In and not Phono. If your PC has RCA input you can use the Line Out on the PP 4 otherwise you will connect via the USB cable. You will likely need to make some adjustments to your soundcard concerning the source. The PP 4 recommends VinylStudio software for working with the sound files. I think the software is awesome and works well.
[ Jesse  Feb 23, 2015 ]
Hi Harry-I have been impressed by the responses by you guys for this query. All have been very helpful and am now in a position to connect up. Thank you for your prompt help.
[ Dave  Feb 21, 2015 ]
Hi Scott-I may have not explained my requirement too well not being a techy! However, I have now sorted out the Jack situation but thank you for your assistance.
[ Dave  Feb 21, 2015 ]
Hi Gareth-I had the feeling this is what I needed to do but you have now confirmed it. Thanks for your prompt help.
[ Dave  Feb 21, 2015 ]
Hi Robert-thank you for this prompt response. I now have all the required information I had asked for-very impressed. Thanks again.
[ Dave  Feb 21, 2015 ]
Take the output of your tape deck and plug it into the input of the NAD that is not the phono input. Then use a USB printer cable from the preamp to your computer and follow the instructions from the VinylStudio software. I hope this is correct. Good luck!
[ james  Feb 20, 2015 ]
Hi, Dave If I read your question correctly, use your cassette playback outputs to connect with the 3020 tape play/input terminals. Then connect the 3020 record/output terminals to the PP4 line in connectors. Connect the USB cable from the PP4 to your PC, download the Vinyl Studio Lite software and you should be ready to go. Hope this helps and have fun.
[ Robert  Feb 20, 2015 ]
So you have a DAT player that you'd like to connect to the NAD 3020 through the PP4? If so: You'll need: - two sets of red/white (or black) RCA/phono cables. - two sets of double wire speaker cables Steps: - Connect the red and white (or black) cables to the corresponding phono OUT in the back of the DAT player to the phono IN on the back of the PP4 (also corresponding red & white/black). - You then connect the second pair of RCA/phono cables from the phono OUT of the PP4 to the phono IN of the NAD 3020 - Now that the preamp and amp are connected to the NAD player, connect the speaker cables to the red and black ( + and - ) speaker outputs. - These speaker outputs are the ones with knobs to secure the speaker cables in place - You need to connect the + and - to the corresponding + and - from the speakers to the amp. - You should be all set. Hope this helps
[ HARRY  Feb 20, 2015 ]
As its a Phono Amp I can't figure out how you could use it for digitizing music from cassette. If you figure something out let me know, but I don't think it can be done...
[ SCOTT  Feb 20, 2015 ]
It's very straightforward: use the line input RCA jacks on the back of the unit to connect to the output of your cassette tape recorder. Be sure to flip the switch in the back that selects the line input. That's it!
[ Gareth  Feb 20, 2015 ]
I convert analogue audio files to digital(usually MP3) by first creating a file on my computer using the USB connection from the NAD amplifier to my computer. The analogue input to the NAD for me is my turntable. Then I use a audio conversion program from avs4you to convert the audio to, for example MP3 or MP4. Once that is accomplished you can then record the digital file from your computer to tape or a CD through a digital amp/receiver connected to your digital device.
[ Robert  Feb 20, 2015 ]

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