Samson QH4 4-Channel Headphone Amplifier - Manual (Page 7)

Front and Rear Panel Call-Outs
1. Line INPUTS - Balanced 1/4” (TRS) left and right inputs. These line level
inputs are the main signal inputs to the headphone amp. Plugging into
only the L/MONO jack sends the signal to both the left and right.
2. DC Power Input - Connect the supplied power adapter here.
3. AUX IN - Stereo 1/8” inputs for connecting an auxiliary line level input,
like that from a smart phone or computer output.
4. AUX OUT - Stereo 1/8” outputs that are tied to the main 1/4” and AUX
inputs for linking to another headphone amp, studio monitors or other
device that accepts line level signals.
5. Headphone OUTPUTS (CH1–CH4) - Stereo 1/4” headphone outputs. Note:
Do not connect headphones with a minimum impedance less than 16Ω.
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