NAD PP 4 - Digital Phono/USB Preamplifier
Why You'll Love It.
Mike ChapmanOVER 30 YEARS AT LISTENUP
The NAD PP 4 is a premium USB phono preamplifier designed for accurate, low-noise playback and archiving of vinyl records. With support for both MM and MC cartridges and precise RIAA equalization, it delivers clear, balanced sound from your turntable. Its 16-bit/48kHz USB output and adjustable recording level make it easy to convert LPs into clean digital files on PC or Mac. A dedicated line input and included VinylStudio Lite software help you digitize tapes and organize your music library effortlessly.
Technical Specifications
MM and MC cartridge compatibility
Switch confidently between moving magnet and moving coil turntables without changing to a different preamp, making the PP 4 a flexible upgrade for evolving systems.
Low-noise, accurate RIAA equalization
Precision RIAA accuracy (±0.3dB) helps maintain natural tonal balance and detail, while low distortion supports clean, transparent playback.
USB recording at 16-bit/48kHz
Capture vinyl directly to a computer in a widely compatible format, making it simple to archive albums, share files across devices, or build a searchable digital library.
Adjustable record level control
Fine-tune recording level (0dB to -6dB) to reduce clipping and keep quieter records from recording too low—especially useful when digitizing varied pressings and tapes.
Line input for broader archiving
Go beyond turntables by connecting cassette decks and other analog sources, turning the PP 4 into an all-purpose analog-to-digital bridge.
Software and workflow-friendly extras
VinylStudio Lite helps split tracks and organize recordings cleanly, while the included shielded USB cable helps reduce noise during conversion.
Reviews
Product Details
NAD PP 4 Digital Phono USB Preamplifier
The NAD PP 4 Digital Phono USB Preamplifier is a high-performance phono preamp with USB built for listeners who want true vinyl fidelity now—and an easy path to digital archiving later. It delivers low-noise gain for both Moving Magnet (MM) and Moving Coil (MC) cartridges with accurate RIAA equalization, preserving detail, dynamics, and tonal balance from your turntable. A dedicated USB 16-bit/48kHz output and adjustable recording level make it simple to convert LPs (and other analog sources) into clean digital files on a PC or Mac. Add the line input for cassette decks and other gear, plus included VinylStudio Lite software for track splitting and file organization, and the PP 4 becomes a compact hub for preserving and enjoying an entire analog library.
What It's Good At:
- Revealing the texture and detail in vinyl with low-noise amplification and precise RIAA equalization
- Supporting both MM and MC cartridges for broad turntable compatibility
- Converting vinyl (and tapes) to digital with USB 16-bit/48kHz PCM output
- Dialing in clean transfers using the adjustable record level control
- Digitizing more than records with a dedicated line input for cassettes and analog sources
- Reducing clutter and noise with a compact chassis and included shielded USB cable
NAD PP 4 Full Specifications:
-
MC (Moving Coil)
- Input Impedance (R and C): 100 Ohm + 180pF
- Gain at 1kHz: 58dB
- Input sensitivity (ref. 200mV output): 0.38mV
- Signal to noise (A weighted, with cartridge connected): 78dB
- Input overload (20Hz/1kHz/20kHz): 0.65/6.5/60mV
- Rated Distortion (THD 20Hz - 20kHz): <0.03%
- RIAA response accuracy: ±0.3dB
- Infrasonic filter: -14dB (5Hz)
- Digital output (USB): 16 bit linear PCM
- Sampling frequency: 48kHz
- Dynamic range: 86dB
-
MM (Moving Magnet)
- Input Impedance (R and C): 47 kilohm + 200pF
- Gain at 1kHz: 35dB
- Input sensitivity (ref. 200mV output): 5mV
- Signal to noise (A weighted, with cartridge connected): 76dB
- Input overload (20Hz/1kHz/20kHz): 10/100/900mV
- Rated Distortion (THD 20Hz - 20kHz): <0.03%
- RIAA response accuracy: ±0.3dB
- Infrasonic filter: -14dB (5Hz)
- Digital output (USB): 16 bit linear PCM
- Sampling Frequency: 48kHz
- Dynamic range: 89dB
- Record Level: 0dB to -6dB
- Gross Dimensions excl. Power supply (W x H x D): 135 x 49 x 72mm (5 5/16 x 1 15/16 x 2 7/8")
-
Line In
- Input Impedance: 47 kilohm + 180pF
- Rated Distortion (THD 20Hz - 20kHz): <0.008%
- Signal to noise, A weighted: -115dB
- Maximum Input Level: 5.3V
-
Line Out
- Output Impedance: 100 Ohm
- Maximum Output Level: 5.3V
NAD PP 4 Q&A:
- Will the NAD PP 4 work with my turntable cartridge (MM or MC)?
- Yes. The PP 4 supports both Moving Magnet (MM) and Moving Coil (MC) cartridges, making it compatible with a wide range of turntables.
- Can I digitize vinyl records to my computer with this phono preamp?
- Yes. The PP 4 includes a USB digital output that records in 16-bit linear PCM at 48kHz for straightforward vinyl-to-digital transfers.
- Does it include software for splitting tracks and organizing recordings?
- Yes. VinylStudio Lite is included to help split tracks, add filenames, and organize albums into a clean digital library on PC or Mac.
- Can I digitize cassette tapes or other analog sources too?
- Yes. A dedicated line input lets you connect cassette decks and other analog devices for archiving beyond vinyl.
- How do I avoid distortion or low recording levels when capturing audio?
- Use the adjustable record level control (0dB to -6dB) to match the source and optimize clean digital capture.
- Does the PP 4 reduce rumble or unwanted low-frequency noise?
- Yes. It includes an infrasonic filter rated at -14dB (5Hz) to help limit unwanted low-frequency movement.
- What kind of sound quality should I expect from the phono stage?
- The PP 4 is designed for low noise and accurate RIAA equalization (±0.3dB), helping preserve clarity, balance, and detail.
- How compact is it for placement in a hi-fi setup?
- It’s easy to position in modern systems, with compact dimensions of 135 x 49 x 72mm (excluding the power supply).
NAD PP 4 Downloads:
NAD PP 4 - Digital Phono/USB Preamplifier Specifications
Key Specs
- Category: Phono Preamp
