Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier
Product #52016 | SKU MACHM400
Usually ships in 1 - 2 weeks
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Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier

Product #52016 | SKU MACHM400
Usually ships in 1 - 2 weeks


Product Features
  • XLR & 1/4" Stereo Inputs and Outputs
  • Three Headphone Outputs per Channel
  • Per-Channel 1/4" Stereo Aux Input
  • 2-Band AEQ, Balance, and Output Controls
  • L/R Mute Switches
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Product Details
  • Product: #52016
  • SKU: MACHM400
Not currently for sale
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Description

The Mackie HM-400 is a rack-mountable, 4-channel headphone amplifier designed to provide versatile headphone amplification for artists, musicians, and engineers monitoring through headphones in live stage applications and home, project, commercial, and mobile-recording studios. It features a stereo main output via XLR and 1/4" jacks and twelve 1/4" TRS stereo headphone outputs—three per channel—fed by a customisable blend of inputs.

One stereo main input via XLR and 1/4" jacks can be mixed with a per-channel 1/4" stereo aux input. Each channel offers 2-band AEQ for quick tone shaping, stereo balance or main/aux input mix control, and output level adjustments. Also on each channel are switches for muting left and/or right signals and operating in stereo or mono. 7-segment LED metres display main input and per-channel output levels.

The HM-400 ships with an IEC power cable and occupies 1 RU in a standard 19" rack.

Features

  • Distribute signal to up to twelve pairs of headphones
  • Occupies 1 RU
  • One stereo main input via XLR or 1/4" jacks
  • One 1/4" stereo aux input per channel
  • One stereo main output via XLR or 1/4" jacks
  • Three 1/4" headphone outputs—one on the front panel and two on the rear—per channel fed by an output level control
  • 2-band AEQ per channel for quick treble and bass adjustments
  • Per-channel Balance knob allows control of left/right level balance or aux/main input mix
  • Switches on each channel for L/R mute and St/2-Ch (stereo/mono) mode
  • 7-segment LED metering for input and each output channel
  • Heavy-gauge steel chassis for rugged durability

Specifications

Number of Channels 4
Input Connections 2 x XLR 3-pin balanced (one stereo pair)
2 x 1/4" TRS balanced (one stereo pair, also accepts 1/4" TS unbalanced)
1 x 1/4" TRS stereo unbalanced for main input
4 x 1/4" TRS stereo unbalanced for aux inputs
Output Connectors 2 x XLR 3-pin balanced (one stereo pair)
2 x 1/4" TRS balanced (one stereo pair, also accepts 1/4" TS unbalanced)
12 x 1/4" TRS stereo unbalanced headphone outputs
Maximum Input Level Main Input: +15 dBu
Aux Input: +20 dBu
Maximum Output Level Headphone Outputs: 550 mW per channel at 47 Ohms (+21 dBu)
Input Impedance Main Input: 20 kOhms balanced, 10 kOhms unbalanced
Aux Input: 10 kOhms unbalanced
Output Impedance Headphone Outputs: 3 Ohms unbalanced
Gain Range Main Input: -66 to +18 dBu
Function Controls Power on/off
Main level knob
L/R mute switches per channel
Stereo/2-Ch switches per channel
2-band AEQ per channel
Balance knob per channel
Output knob per channel
Frequency Response 20 Hz to 20 kHz (±1 dB)
THD <0.01% (+4 dBu, 1 kHz, unity gain)
Noise -66 dB
CMRR Main Input: >42 dB at 1 kHz
Display 1 x input level metre
4 x output level metres
Power Requirement 100 to 120 VAC, 50/60 Hz, 24 W
220 to 240 VAC, 50/60 Hz, 24 W
Power Connector 1 x 3-pin IEC male, 250 VAC, 10 A
Construction Material Heavy-gauge steel chassis
Dimensions (H x W x D) 46 x 483 x 224 mm
Weight 3.6 kg

Australian Shipping Via DHL
DHL offers a great express shipping service to Australia from New Zealand. We are proud to be able to offer express shipping to main cities on the east coast of Australia, within the same timeframe ( If not quicker ) than local Australian courier companies. Prior to the Covid-19 outbreak, service standards for these main centers was overnight. However these services have been impacted greatly, and as such the overnight service has been suspended. Overnight shipping will likely resume once things have returned to normal.

Qualifying main centers include:

  • Brisbane
  • Sydney
  • Adelaide

Whilst this service is extremely efficient and will likely be delivered within 1-2 days 99.9% of the time, it cannot be guaranteed. In the case where something were to go wrong with your delivery and it doesn’t arrive within the specified time frame, in most cases it will be delivered by the next day.

While not all major cities are eligible for overnight delivery, they still benefit from this great service. Other centers throughout Australia will have a typical delivery ETA of 2-4 days. (Excluding rural delivery address where this ETA can be extended to an additional three or more days).

If you require urgent shipping and you don’t reside in one of the cities stated above, please contact us and we can find a solution that works best for you.

Please Note: Shipping via DHL is not available to PO boxes and/ or parcel boxes etc.

In The Box

  • Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier
  • Power Cable

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Details
  • Product: Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier
  • Manufacturer: Mackie
  • Model: HM-400
  • SKU: MACHM400
  • RM Product #: 52016