SKU: 89114685119

Pro-Ject Phono Box RS Phono Preamplifier

Sale price$512.55 Regular price$569.50
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

Pro-Ject Phono Box RS Phono PreamplifierOverview MM & MC capable True dual mono design Balanced XLR & unbalanced RCA In & Outputs Fully passive RIAA & DECCA equalisation Reference class phono preamplifier with unique continuously variable impedance control This ultra low noise and low distortion preamplifier is truly made for the audio connoisseur. It offers not only breathtaking performance but is capable of adapting to virtually any phono cartridge through variable its impedance control.

Overview

  • MM & MC capable
  • True dual mono design
  • Balanced XLR & unbalanced RCA In & Outputs
  • Fully passive RIAA & DECCA equalisation

Reference class phono preamplifier with unique continuously variable impedance control

This ultra low-noise and low-distortion preamplifier is truly made for the audio connoisseur. It offers not only breathtaking performance but is capable of adapting to virtually any phono cartridge through variable its impedance control. Impedance adjustment can even be done during playback! Due to the use of premium components, such as the SSM2019 from Analog Devices for the input stages and the Linear Technology LT1010 as its 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 lengths.

A selector switch permits use of fully passive RIAA or DECCA equalisation. The Phono Box RS offers fully balanced circuitry and both XLR and RCA inputs and outputs. Vinyl playback has never sounded clearer, more detailed and smoother 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
  • Faceplate silver or black

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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 89114685119

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Julie
Whiting, US
★★★★★ 4
Small, but twisty and fun looking. Seems relatively sturdy, though doesn't look indestructible at all.
Color: Rubber Chew Toy, Size: Large
SLIGHTLY disappointed because I thought this was bigger than it is. If you squish it all in close, it's maybe one and a half times the size of a tennis ball. (Of course, the size is probably listed; I think I just assumed, so my fault.) That being said, it's entertainingly twisty and squishy, though the rubber seems relatively sturdy. I'm not yet positive if it will hold up to the 8 month retriever/lab mix it's intended for; he tends to rip instantly through anything much less sturdy than kong natural rubber. But it seems like something that will amuse him, so we're going to give it a shot at Christmas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2014
K
Verified Purchase
Kindle Customer
Pawtucket, US
★★★★★ 5
Great product!
Color: Rubber Chew Toy, Size: Large
My dog is an aggressive chewer. I have bought this 3 times for her she loves to play tug and fetch with it. They last longer than most of the other toys I get her and it’s one of her favorites.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2025
K
Verified Purchase
Kate
Battle Creek, US
★★★★★ 3
It’s okay I guess
Color: Rubber Chew Toy, Size: Large
Good price and decent toy, seems well made. My puppy is entirely uninterested and doesn’t play with it at all.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
P
Verified Purchase
PattyJoyce on Joe List
Boise, US
★★★★★ 1
Very dangerous for chewers!!!
Color: Rubber Chew Toy, Size: Large
My dog was chewing/swallowing the hard rubber within seconds of having this "toy"!!! Not safe, sturdy, no play attraction; only desire was to consume!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
Get one!
Color: Rubber Chew Toy, Size: Large, Color: Rubber Chew Toy, Size: Large
This was my puppy’s fav toy for the longest time. Not too heavy and is the right amount of tough for a chewing teething puppy. Cute toy that’s easy to chew and safe for a teething puppy it’s not loud and lasts. Worth the price.
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Reviewed in the United States on November 14, 2025

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