Phono Box RS - Ultra-Low Noise Phono Preamplifier
The Phono Box RS is an ultra-low noise, ultra-low distortion phono preamplifier designed to deliver breathtaking performance from your phono cartridge. It offers an unprecedented range of adjustments, ensuring that you can fine-tune the sound to perfection. Featuring continuously adjustable (even ‘on-the-fly’) loading via the front-facing potentiometer, you can easily ‘tune’ while listening, providing an immersive and customizable listening experience.
Please Note : This product is an open unit and has been used. It was purchased in 2024. The original box is not available.
Key Features
- Ultra-low noise and distortion for exceptional sound quality
- Continuously adjustable loading via front-facing potentiometer
- Adjust on-the-fly while listening to achieve your ideal sound
- Used unit purchased in 2024, no original box
Technical Specifications
| Specification |
Value |
| Input Impedance (Variable) |
Stepless 10ohms – 1,200ohms A |
| Input Capacitance/Impedance |
100pF, 200pF, 300pF, 420pF, and 520pF / 47kohms B |
| Input Impedance (Fixed) |
10ohms A |
| Input Gain (XLR sockets, +6dB) |
40dB, 50dB B / 60dB A |
| Noise Floor |
91dB (A weighted) |
| Total Harmonic Distortion (THD) |
0.019% |
| De-Emphasis Curve Accuracy |
20Hz – 20kHz / max. 0.3dB |
| Subsonic Filter |
At 20Hz with 12dB/octave |
| Inputs |
1 pair RCA/phono sockets, 1 pair XLR sockets |
| Line-Level Output |
1 pair RCA/phono sockets, 1 pair XLR sockets |
| Wiring XLR Sockets |
1 ground, 2 “hot” and 3 “cold” |
| Outboard Power Supply |
±18V/250mA DC, suitable for your country’s mains supply |
| Power Consumption |
150mA DC, <1W in standby |
| Note |
A: typical for low output MC cartridges, B: typical for MM cartridges or high output MC. Input capacitance is irrelevant for low output MC cartridges. |
![Pro-Ject Phono Box RS [Pre Owned]](http://www.therevolverclub.com/cdn/shop/files/PhonoBoxRSFront.png?v=1739004011&width=1000)
![Pro-Ject Phono Box RS [Pre Owned]](http://www.therevolverclub.com/cdn/shop/files/PhonoBoxRSBack.png?v=1739004011&width=1000)
