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4-Channel Headphone Amplifier

The QH4 4-Channel Headphone Amplifier is a high-performance, great-sounding solution for stereo desktop headphone distribution. The QH4 is ideal for any situation where up to four headphone channels are required. Simply connect an audio source to the amplifier and instantly have independent control over each headphone channel.

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  • In Side... And Out

    The QH4 has two balanced 1/4-inch inputs for connecting to your mixer or recording interface, and a stereo 1/8-inch auxiliary input that's perfect for playing music from your smartphone or other line-level device. In addition to the four stereo 1/4" headphone outputs, the QH4 has a 1/8" aux output that can be used to daisy-chain multiple QH4s.

  • Headphone Amp QH4 and Z55 header image

    More Inputs, More Power, More Control

    The four independent high-power amplifier channels deliver clean, crisp audio to up to four sets of headphones, operating from 16 to 600 ohms. And the performance never degrades, even when all four channels are in use. With an ultra-low noise floor and wide dynamic range, the QH4 is a tremendous value compared to other headphone amplifiers on the market. In addition, the QH4's master volume control and mute switch make it easy to control the overall level of your headphones.

  • Check Your Phase

    Before you bounce your mix, it's a good idea to make sure it's compatible with mono speaker systems. The QH4 has a Global Mono button that allows you to quickly check the mono compatibility of your tracks. If you find that some of your audio is missing, check the phase of your recordings. This feature also allows you to take a split left and right feed from a stereo interview and send both tracks to each side of your headphones. This is great for quickly monitoring a podcast or recording with split tracks.

    Whether you're tracking multiple artists in the studio, recording a podcast, watching a video with friends, or just kicking back with a few tunes, the QH4 delivers great sound at an amazing value.


Channel Your Sound

Features / Specs


  • 4-channel stereo headphone distribution amplifier
  • Four independent 1/4" stereo headphone channels
  • Individual volume control on each headphone channel
  • Two balanced 1/4" input connectors
  • Stereo 1/8" Aux input and output
  • Master Mute and Mono-summing switches


Inputs 2 x 1/4" balanced, stereo 1/8" unbalanced TRS
Outputs 4 x stereo 1/4" unbalanced, stereo 1/8" unbalanced TRS
Controls Master volume, master Mute, master Mono, 4 x Channel volume
Noise Floor -114dBu, 22k BW unweighted
Maximum Output 8.3 dBu, 1% THD+N, loaded 16R
Output Power 282mW per side / 564mW per channel, loaded 32Ω
Dynamic Range 22dB, 22k BW
Frequency Response 17Hz–47kHz (-3dB)
Power 15VDC adapter

Warning CALIFORNIA PROPOSITION 65 WARNING: Cancer and Reproductive Harm -

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