Lehmann Audio Decade – Reference Dual-Mono Phono Stage
PWX II Linear PSU - 66dB MC Gain - Zero Global Feedback - Custom LoadingUltimate Vinyl Companion Between Black Cube & Silver Cube
Dual-mono design with separate PWX II power supply (28VA toroidal + inductive filtering) isolates audio circuits completely. Zero-global-feedback Class A output stage drives any cable length effortlessly. Passive RIAA network uses precision MKP capacitors between two linear gain stages for perfect transients + timbre accuracy.Universal Cartridge Compatibility
Gain: 36/46dB (MM), 56/66dB (MC)
Input Impedance: 47kΩ, 1kΩ, 100Ω + custom slot
Input Capacitance: 47pF to 1,370pF (DIP switch selectable)
Channel Separation: >80dB @ 10kHz
Output Impedance: 5Ω
Subsonic Filter: 50Hz, 6dB/oct
Reference Measurements
| Parameter | Value |
|---|---|
| Max Input MM/MC | 45mV / 4.5mV |
| SNR MM/MC | 78dB / 69dB |
| Noise Floor MC | 0.07µV (A-wtd) |
| THD | 0.03% |
| Dimensions (WxDxH) | 110×280×50mm |
| Weight | Audio: 0.87kg, PSU: 1.56kg |
Front Panel Precision
MM/MC selector, High Gain toggle, Soft Bass Rolloff filter. Rear: Gold RCA I/O, Neutrik XLR PSU umbilical. DIP switches (underside) for precise loading.
Proven Applications
Low-output MCs (<0.38mV), high-compliance MM, longest cable runs, dual-table setups. Military-grade components from studio console designs.


