- Special Order
- Free shipping
- 1yr Manufacturer Warranty
- 5% Price Promise
Reference class phono preamplifier with unique impedance control
This ultra low noise and distortion preamplifier is made for the audio conniosseur and offers not only breathtaking performance but is capable to adapt to virtually any phono cartridge through variable impedance control. Impedance adjustment can be done while playback! Due to use of best parts, like SSM2019 from Analog Devices as input stages and Linear Technology LT1010 as high current buffer stage, Phono Box RS delivers ultra low levels of distortion and noise. Its very low output impedance makes it insensitive to selection of interconnect cables and lenghts.
Fully passive RIAA and DECCA equalisation is selectable. Phono Box RS offers fully balanced circuitry and both XLR and RCA inputs and outputs. All in all vinyl playback will never have sounded as clear, detailed and smooth, than with this superlative phono stage!
Features:
- MM & MC capable
- True dual mono design
- Balanced XLR & unbalanced RCA In & Outputs
- Fully passive RIAA & DECCA equalisation
- Unique continously variable input impedance loading, matches every cartridge (adjustment even while playing)
- RCA & XLR In & Out
- Superior low noise / low distortion
- Classy & elegant dip switches
- DC power supply (< 1 watt standby power)
- Metal casing protects against vibration and interference
Specifications:
- Input impedance Fixed: 10 Ohms or 47kOhms, Variable 10 - 1200 Ohms
- Load capacity switchable: 100pF, 200pF, 300pF, 420pF, 520pF
- Output impedance: 50 Ohms
- Gain, MM / MC: RCA: 40, 50, 60 dB, XLR: 46, 56, 66 dB
- Signal to noise ratio: 91 dBA
- THD: 0.019%
- RIAA accuracy: within 0.3dB/20Hz - 20kHz
- SubsonIc: 20Hz / - 12 dB
- Inputs: RCA & XLR
- Outputs: RCA & XLR
- Power supply: 2 x 18V/300mA DC; 220 - 240V, 50Hz
- Power consumption: 150mA DC < 1 watt standby
- Dimensions W x H x D (with sockets): 206 x 72 x 210 mm
- Weight: 2000 g without power supply
Product Details
- Pro-Ject Phono Box RS
-
Brand New : Factory Sealed
- EAN : 9120035829894
- EFLC : 9554
- Write a review
Warranty
One Year Warranty
- Parts and Labour Warranty
- Canada-wide Coverage
- Pro-Ject Authorized
Returns
Easy Returns
- 14-day return window on eligible items
- Full refund issued in accordance with our return policy
About Pro-Ject
Pro-Ject focuses on sound-first products built for music and home theater listening, where clarity, balance, and real-world usability matter. We've been carrying Pro-Ject since 2016.
Explore our current Pro-Ject selection and best sellers. We offer both new and open-box items, and everything is clearly marked. Popular categories include Turntables, Product Hardware & Accessories, Turntable Accessories.
Featured Pro-Ject Products

Pro-ject Acryl It Platter Upgrade for Debut and Xpression
Model: PJ07685855
In stock
Pro-ject Clamp It Record Clamp STAINLESS
Model: PJ50433243
In stock
Pro-Ject Debut Sub-platter Upgrade for the Debut Turntable Line
Model: PJ97826480
In stock
Pro-ject PJ35827166 Phono Box MM Phono Pre Amplifier BLACK
Model: PJ35827166
In stock
Pro-Ject PJ07683974 Lube It Turntable Platter Bearing Oil 5ml
Model: PJ07683974
In stock
Pro-Ject PJ82388498 Sweep It S2 Stabilized Record Broom BLACK
Model: PJ82388498
In stock





