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**We are closed Thursday 3/17 for the Purim Holiday**

All orders placed today will ship on Friday 3/18 with the speed selected at checkout.

  1. Home
  2. Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier with Power Cable
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Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier with Power Cable
Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier with Power Cable
Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier with Power Cable

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

  • $199.99

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 customizable 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 EQ 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 meters 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.

Here is what you get:

  • Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier
  • Power Cable
  • Limited 1-Year Warranty

Product highlights:

  • XLR & 1/4" Stereo Inputs and Outputs
  • Three Headphone Outputs per Channel
  • Per-Channel 1/4" Stereo Aux Input
  • 2-Band EQ, Balance, and Output Controls
  • L/R Mute Switches
  • Stereo/Mono Mode Switches
  • LED Metering
  • Includes Power Cable

Mackie HM-400 Specs

Form Factor

Rackmount

Number of Headphone Channels

4-Channel

Headphone Output Power

550 mW per Side into 47 Ohms (Max)

EQ

2-Band EQ per Channel

Display

5 x Multi-Segment LED Meter

Connectivity

Analog Audio I/O

2 x XLR 3-Pin Balanced Input (1 Stereo Pair)
2 x 1/4" TRS Balanced/Unbalanced Input (1 Stereo Pair)
1 x 1/4" TRS Unbalanced Stereo Input
4 x 1/4" TRS Unbalanced Stereo Aux Input
2 x XLR 3-Pin Balanced Output (1 Stereo Pair)
2 x 1/4" TRS Balanced Output (1 Stereo Pair)
12 x 1/4" TRS Unbalanced Headphone Output

Performance

Frequency Response

20 Hz to 20 kHz ±1 dB

Gain/Trim Range

Inputs:
-66 to +18 dBu

Max Input Level

Line Inputs:
+15 dBu
Aux Inputs:
+20 dBu

Max Output Level

Headphone Outputs:
+21 dBu

Impedance

Headphone Outputs:
3 Ohms (Unbalanced)
Inputs:
20 Kilohms (Balanced)
10 Kilohms (Unbalanced)
Aux Inputs:
10 Kilohms (Unbalanced)

THD

< 0.01% (at +4 dBu, 1 kHz, Unity Gain)

Noise

-66 dB

CMRR

Line Inputs:
> 42 dB (1 kHz)

Power

Power Requirements

AC Input

AC Input Power

100 to 120 VAC, 50 / 60 Hz
220 to 240 VAC, 50 / 60 Hz

Power Consumption

24 W

Physical

Rackmount Size

1 RU

Dimensions

19 x 8.8 x 1.8" / 483 x 224 x 46 mm

Weight

8.0 lb / 3.6 kg

Packaging Info

Package Weight

10.5 lb

Box Dimensions (LxWxH)

20.8 x 10.6 x 4.1"

  • Shipping

·         Shipping charges are automatically calculated for orders shipped within the Continental USA.

·         Orders shipped within the Continental USA are shipped via UPS Ground unless otherwise specified. We do offer other UPS services like Next Day Service as well as Two Day Rush Delivery Service.

·         Orders shipped to an international destination or to a USA territory are shipped via United States Postal Service (USPS) Insured or Express.

·         We do not take responsibility for the loss of packages shipped via USPS. However, we will make sure to take care of lost package claims.

·         Most orders received prior to 2:00 P.M. are shipped within the same business day.

Smart Tabs
  • Tags: Headphone Accessories Headphones & Earphones Pro Audio
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