Pro-Ject Tube Box S3 B balanced RIAA turntable preamplifier
A versatile RIAA preamplifier for all turntables, offering tube glow. Balanced construction and versatile cartridge matching controls.
BALANCED AUDIOPHILE TUBE PREAMPLIFIER
Tube warmth for audiophiles
The Tube Box S3 B is an audiophile turntable preamplifier that brings true analog warmth to your vinyl playback. It features a fully balanced and discrete gain stage, a balanced 5-pin mini XLR input, and balanced XLR outputs. Easily adjust settings from the front panel and enjoy clean, distortion-free performance thanks to its durable aluminum chassis. Available in silver or black and made in Europe, the Tube Box S3 B is a compact yet powerful upgrade for any serious vinyl setup.
"B" means balasized
The symmetrical design is a real standout! Connect your turntable to a 5-pin mini XLR cable and benefit from a balanced signal path. Symmetrical or balanced signals consist of a hot and a cold (also called + and -) signal. Both signal chains effectively transmit the same musical information. A truly balanced amplification stage can now extract the final musical information from the +/- signals, eliminating any possible noise that may be present during the transmission. Since there are two signal chains, we also needed two separate amplifiers for the product. Absolutely unprecedented solution in this price range, offering high-quality and cleanest amplification for your turntable signal!
Features
- 5-pin balanced mini XLR input
- Balanced XLR outputs
- Fully symmetrical and discrete gain stage
- Easy settings adjustment on the front panel
- 2 x ECC83 tubes (replaceable)
- MM and MC compatible
- Double monostructure
- Semi-passive RIAA equalizer
- Excellent low noise/low distortion
- Aluminum housing protects against interference
- Available in silver or black
-
Made in Europe
Specifications:
Pipe assembly: 2x ECC83 (12AX7)
Input impedance: 10, 50, 100, 1k, 47k ohms
Input capacitance: 50, 150, 300, 400 pF
Gain (+6dB from XLR Out): 40, 45, 60, 65 dB
Signal-to-noise ratio MM (40dB): 97dBV, 105dBV - 'A' weighted
Signal-to-noise ratio MC (60dB): 83dBV, 88dBV - 'A' weighted
THD at 1 kHz: <0.005% MM, <0.01% MC
THD (20Hz-20kHz): <0.1% MM, <0.03% MC
RIAA equalization curve accuracy : <0.4dB / 20Hz - 20kHz
Subsonic filter: 18 dB/octave at 20 Hz
Income: 1 x 5-pin mini XLR / 1 x pair of RCA connectors
Line level output: 1 x pair RCA, 1 x pair XLR
Power supply DC: 18V / 1000mA
Power consumption: 18 V / 800 mA DC, <0.5 W in standby mode
Dimensions: 206 x 81 x 153 (164 with connectors) mm (W x H x D)
Weight: 1010 g without power supply
