VK-85 vs REX
The REX's signal-to-noise is 100 dB against the VK-85's 96 dB and its thd 0.005% against 0.010%. Both share output impedance (200Ω) and input impedance (100Ω).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-Amplifiers
Estimated price (community-sourced)
$12,500
Around — community and catalog average, updates slowly
About the VK-85
The Balanced Audio Technology VK-85 preamplifier, introduced alongside the REX 300 power amplifier, combines the best traits of tube and solid-state sound. It employs BAT's signature high-current Unistage topology with second-generation transformer-coupled outputs and a symmetrical N-channel gain block for superior dynamics and transparency. The SuperPak Quattro power supply, with four levels of filtration and premium silver foil/oil capacitors, significantly reduces the noise floor, enhancing harmonic accuracy, textural beauty, and stereo imaging. The single-gain-stage Unistage design avoids global feedback and multi-stage artifacts, using identical N-channel MOSFETs on both waveform sides for signal symmetry. Available in silver or black, it offers precise 140-step 0.5 dB volume control, phase inversion, and versatile connectivity.
Specifications
Analog Output
Analog signal output specifications
- THD
- 0.010%
- SNR
- 96 dB
- Output Voltage
- 20.0V RMS
- Output Impedance
- 200Ω
- Max Output Voltage
- 20.0V RMS
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- XLR, RCA
- Analog Outputs
- XLR, RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 483 × 146 × 394 mm (W × H × D)
- Weight
- 18.14 kg (40 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions