With the launch of the Black Cube Linear there is now an upscale headphone amplifier designed for the highest demands. It features selectable gain (0dB, 10dB, 20dB), which effectively optimizes the output level of the zero global feedback Class A output stage. For stereo sytems with just one source, like a CD player or turntable with a phono stage, the Black Cube Linear is the simplest and most effective active preamp one can think of. All audio connectors, including the two Neutrik phone jacks, come with gold-plated contacts. No external Y-adapter needed.

Lehmann Cube Linear Features and Specifications

Input impedance: 40k Ohms

Maximum gain: 0dB, 10dB, 20dB switchable underneath the unit

Frequency response: 10Hz (-0.3dB) to 35kHz (-1dB)

S/N ratio: >95dB at 0dB gain

THD: <0.001% at 6mW/300 ohms

Channel separation: >70dB/10kHz

Output power: 200mW/300 ohms, 400mW/60 ohms

Power dissipation: <5W, internal, regulated power supply

RIAA filter: passive equalization between linear gain stages

Interchannel mismatch: 0.5dB

Power Consumption: <3W; external PWX power supply