top of page

H Quad

4 Channel Headphone Amplifier

The OSL H Quad is a 4 channel headphone amplifier built for the stage as well as the studio. It has 4 independent gain controls for the 4 stereo outputs. The unit can be powered using a 12V DC adapter.

Critical Performance Indicators

Input Impedance

100 kΩ

Max Input Level

+16 dBu

Output Connectors

Stereo 1/4" TRS Jack

Output Impedance


Power Supply

12V DC, 150 mA

Max Output Level

40mW @ 100Ω

Input Connectors

Stereo 1/4" TRS Jack

bottom of page