NAD Digital Phono/USB Preamplifier
The NAD PP 4 Digital Phono/USB Preamplifier combines high-quality phono amplification with easy digital archiving for vinyl and analogue sources. Supporting both MM and MC cartridges, it delivers low-noise playback with precise RIAA equalisation for natural, detailed sound. A built-in USB output and included VinylStudio Lite software make it simple to convert records or tapes into organised digital files. With adjustable recording levels, a line input, and compact design, the PP 4 is a versatile solution for enjoying and preserving your music collection.
Available with Professional installation in NY, NJ, and CT – Powered by Sound Waves .
The NAD PP 4 Digital Phono/USB Preamplifier is designed to reveal the full musical texture of vinyl records while offering a simple path to digital archiving.
With low-noise amplification, precise RIAA equalisation, and USB connectivity, it allows you to enjoy analogue playback while preserving your collection in high-quality digital formats.
Key Features
- Supports both MM and MC cartridges
- Low-noise signal path with accurate RIAA equalisation
- USB output for analogue-to-digital recording
- VinylStudio Lite software included (PC & Mac)
- Adjustable recording level for optimised capture
- Shielded USB cable included
- Line input for cassette and analogue sources
- Energy-efficient power supply
- Auto Power Down feature
- Compact design for easy integration
Balanced Playback for Any Cartridge
The PP 4 supports both MM and MC cartridges with stable, low-noise gain.
Its precision RIAA equalisation maintains tonal balance and clarity across different recordings.
Easy Vinyl and Tape Conversion
The USB output provides a direct connection to your computer for digitising records and tapes.
Adjustable recording levels help ensure consistent, clean results across different sources.
Built for Digital Archiving
Included VinylStudio Lite software makes it easy to organise recordings and split tracks.
This allows you to create a structured, accessible digital music library from your analogue collection.
Phono Stage – Moving Coil (MC)
| Input impedance | 100 Ω + 180 pF |
| Gain (1 kHz) | 58 dB |
| Input sensitivity | 0.38 mV |
| Signal-to-noise ratio | 78 dB (A-weighted) |
| Input overload | 0.65 / 6.5 / 60 mV (20 Hz / 1 kHz / 20 kHz) |
| THD (20 Hz – 20 kHz) | <0.03% |
| RIAA accuracy | ±0.3 dB |
| Infrasonic filter | -14 dB (5 Hz) |
Phono Stage – Moving Magnet (MM)
| Input impedance | 47 kΩ + 200 pF |
| Gain (1 kHz) | 35 dB |
| Input sensitivity | 5 mV |
| Signal-to-noise ratio | 76 dB (A-weighted) |
| Input overload | 10 / 100 / 900 mV (20 Hz / 1 kHz / 20 kHz) |
| THD (20 Hz – 20 kHz) | <0.03% |
| RIAA accuracy | ±0.3 dB |
| Infrasonic filter | -14 dB (5 Hz) |
USB Digital Output
| Format | 16-bit Linear PCM |
| Sampling frequency | 48 kHz |
| Dynamic range | 86 dB (MC) / 89 dB (MM) |
| Record level | 0 dB to -6 dB |
Line Input
| Input impedance | 47 kΩ + 180 pF |
| THD (20 Hz – 20 kHz) | <0.008% |
| Signal-to-noise ratio | -115 dB (A-weighted) |
| Maximum input level | 5.3 V |
Line Output
| Output impedance | 100 Ω |
| Maximum output level | 5.3 V |
Dimensions
| Dimensions (W × H × D) | 135 × 49 × 72 mm (5 5/16 × 1 15/16 × 2 7/8 in) |
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