Other Products ｜Pro-Ject: Tube Box DS3 B Balanced Phono Preamp

LAB POINTS

compact audiophile phono preamp with tube technology + True Balanced Connection

connect (2) turntables simultaneously via XLR, mini XLR or RCA inputs
supports both MM and MC cartridges
customizable gain, input cartridge load settings on front panel
switchable subsonic filter

double mono circuitry for optimized channel separation
high quality aluminum casing offers shielding from both vibration and electromagnetic interference

available in black or silver
made in Europe

"The Tube Boxes have been an integral part of our product portfolio for many years. Now, the new Tube Box DS3 B adds balanced in- and outputs to the beloved tube amplification. This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components. You can connect two turntables at the same time & easily set everything on the front plate. Each input settings are stored in the memory. Large ranges from 40dB up to 65dB are possible. You can perfectly match it with a wide variety of cartridges and integrate it into the rest of your Hifi system, matching the volume levels accurately to other sources like CD players or streaming devices. Load impedance can be set continuously via potentiometer, a system invented by Pro-Ject Audio Systems. It allows you to seamlessly adjust the impedance during playback and immediately assess the impact of different loading options. This is necessary to find just the right load impedance for your cartridge. No other manufacturers implement this feature in this extreme way." - Pro-Ject
TECH SPECS

tubes: 2 x E88CC / 6922
input impedance: stepless 10-1000 Ohms, fix 47 kOhms
capacitance: 50 / 150 / 300 / 400 pF
input gain: 40 / 45 / 50 / 55 / 60 / 65 dB
noise floor: >87dBV - ‚A‘ weighted
THD: < 0,03%
RIAA EQ Curve Accuracy: +/- 0,5dB/20Hz - 20kHz
inputs: 1x 5-pin mini XLR / 1x pair XLR / 1x pair RCA phono
outputs: 1x pair RCA, 1x pair XLR
output voltage:18V/1000mA DC
dimensions (WHD): 8.11" x 3.54" x 8.94” / 206 x 70 x 194 mm
weight: 3.44 lbs / 1560 g 

COMES WITH

2x E88CC tubes
power supply

ABOUT TRUE BALANCED AUDIO

True Balanced Audio refers to a superior audio signal that results in higher sound quality with nearly zero background noise, check out our in-depth guide here

True Balanced gear can be utilized as both balanced (with the proper components and signal path) or non-balanced
True Balanced Audio requires a moving coil cartridge (MC) or the Pro-Ject Pick it Pro Balanced MM Cartridge
True Balanced Audio requires a balanced audio cable (5-Pin DIN, mini XLR / XLR, or RCA > Mini XLR) connected from the turntable to the preamp

True Balanced Audio requires a preamp that accepts balanced cables; you can output either XLR (recommended) or RCA from the preamp to speakers / amplifier
shop all Pro-Ject True Balanced
Brand:Pro-JectCategory:_STEREO-COMP-preampSKU:eq-1900-blackTags:phono preamps, Pro-Ject Audio Components, Pro-Ject High-End, Pro-Ject Preamps, Pro-Ject True Balancedtype:Black, Silver