About the Mackie HM-4

Product highlights:
- stereo 1/4" input (TRS) — no input cable included
- four 1/4" stereo headphone outputs (TRS)
- independent level control for each channel
- includes AC power supply
- 4-5/16"W x 2"H x 2-5/16"D
- weight: .5 lbs.
- warranty: 1 year
- MFR # HM-4
- Item # 863HM4
- California customers: Please click here for your Proposition 65 WARNING.
What's in the box:
- Headphone amplifier
- DC Power supply w/ 60" cord (12 VDC / 200 mA)
- Quickstart guide
More details on the Mackie HM-4

Product Research
Features
Overview: The Mackie HM-4 4-way headphone amplifier is an easy, convenient way to allow up to 4 people listen to the same audio signal. It features one 1/4" stereo input and four 1/4" stereo outputs. The input can accept mono line-level signals, either balanced or unbalanced, or an unbalanced stereo signal. Each of the 4 outputs are unbalanced stereo and include their own volume control.
Note: The HM-4 does not include an audio input cable, which must be purchased separately (see Accessories).
Specifications:
- Maximum Input Level: +22 dB
- Input Type: (1) Female 1/4" stereo, balanced/unbalanced
- Input Impedance: 10 kΩ each channel
- Output Type: (4) Female 1/4" stereo, unbalanced
- Output Impedance: 47 Ω each channel
- Level Control: (4) Rotating potentiometers
- Current Draw: <220 mA maximum, +12 VDC
- LEDs: (1) Power on/off
- Dimensions: Width: 4.125", Height: 2.125", Depth: 4.0" w/ power cord
- Weight: 0.5 lbs.
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Customer Q&A
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I am enjoying this amplifier. I have high ohm headphones, that are not driven well with my tv,phone or computer. Everything sounds magnificent with this amp. Thank You
Stephen from Valley Park, MO