Available in Black
Tube Box DS3 B: High-End Tube Sound Quality
Tube phono stages have been a cornerstone of our product portfolio for years. The Tube Box DS3 B takes innovation further with balanced capability, introducing our first true balanced tube phono preamp. Designed with a dual-mono circuit layout and utilizing audiophile-grade components, this European-made hybrid marvel delivers an exceptional listening experience for turntable enthusiasts.
Key Features
- Balanced XLR inputs & outputs
- Balanced mini XLR input
- Continuously variable cartridge loading
- Precise RIAA equalization
- Low-noise, low-distortion circuitry
- MM & MC capable
- Single-ended RCA inputs & outputs
- Dual-mono design
- Subsonic filter
- Aluminum chassis shields RF/EMI
- Available in silver or black
- Optional magnetic wooden side panels
- Made in Europe
Technical Specifications
| Specification |
Details |
| Tubes |
2x 6922/E88CC |
| Input Impedance |
Variable 10-1000Ω / 47kΩ |
| Input Capacitance |
50pF, 150pF, 300pF, 400pF |
| Gain Options |
40, 45, 50, 55, 60, 65dB |
| Output Voltage (40dB) |
500mV/1kHz output at 5mV/1kHz input |
| Signal/Noise Ratio (40dB) |
>92dBV; 102dBV ('A' weighted) |
| Signal/Noise Ratio (60dB) |
>78dBV; 87dBV ('A' weighted) |
| THD at 1kHz |
<0.003% (MM), <0.02% (MC) |
| THD (20Hz-20kHz) |
<0.005% (MM), <0.03% (MC) |
| RIAA Equalization Curve Accuracy |
20Hz-20kHz (±0.5dB) |
| Subsonic Filter |
At 20Hz with 18dB/octave |
| Inputs |
RCA, XLR, Mini XLR |
| Outputs |
RCA, XLR |
| Trigger In/Out |
12V (2.5mm jack) |
| XLR Wiring |
1=Ground, 2=Hot, 3=Cold |
| Outboard Power Supply |
18V/1000mA DC |
| Power Consumption |
18V max, 750mA DC, <0.5W in standby |
| Dimensions (WxHxD) |
206 x 91 x 227mm |
| Dimensions (Standard) |
8.11 x 3.54 x 8.94" |
| Mass (Weight) |
1560g (3.44 lbs) |
![Pro-Ject Tube Box DS3 B Balanced Tube MM/MC [Tube Phono Preamp] (Arrives in 21 days)](http://www.therevolverclub.com/cdn/shop/files/Tube-Box-DS3-B-Phono-Preamp-Black.webp?v=1750763777&width=1920)
![Pro-Ject Tube Box DS3 B Balanced Tube MM/MC [Tube Phono Preamp] (Arrives in 21 days)](http://www.therevolverclub.com/cdn/shop/files/Tube-Box-DS3-B-Phono-Preamp-Rear.webp?v=1750763803&width=1600)
