Mackie HM400 4-CHANNEL HEADPHONE AMPLIFIER
Rackmount 4-channel Headphone Amplifier with 12 Headphone Outputs, L/R Stereo Inputs, L/R Stereo Outputs, 4 Aux Inputs, 4 Stereo/2-channel Mode Switches, and 7-segment LED Metering
Description
Perfect for studios, practice spaces, quiet stages, and more, the HM Series offers everything you need whether it is just splitting a single signal to your band, or more complex headphone distribution.
The 19” rackmount HM-400 4-Channel Headphone Amplifier offers an incredible amount of versatility and excellent sound quality in a single rack space. Perfect for professional applications including studios, Houses of Worship, practice spaces, and more. It also features a main input with level control plus stereo outs, aux inputs and EQ per channel with 12 total headphone outputs.
Fitur
- L/R Main stereo inputs plus L/R stereo outputs
- 7-segment LED metering per channel plus Main
- 3 headphone outputs per channel
- Aux input on each channel with balance control to mix main and aux signal
- Mute and stereo/2-ch mode switches per channel
- 12 total headphone outputs
- Built-Like-A-Tank™ construction
Spesifikasi
| Audio Performance | |
| Frequency Response | 20 Hz – 20 kHz, ±1 dB |
| Noise | –66 dB |
| Distortion (THD) | |
| +4 dBu, 1 kHz, unity gain | <0.01% |
| Maximum Levels | |
| Main Input | +15 dBu balanced / unbalanced |
| Aux Input | +20 dBu unbalanced |
| Headphone Output | 550 mW / channel @ 47Ω (+21 dBu) |
| CMRR (Main Input) | >42 dB @1 kHz |
| Gain Range (Main Input) | –66 to 18 dBu |
| Input / Output | |
| Input Type | Female XLR Balanced Female 1/4″ Balanced – Unbalanced |
| Main Input Impedance | 20 kΩ balanced, 10 kΩ unbalanced |
| Aux Input Impedance | 10 kΩ unbalanced |
| Output Type | Male XLR Balanced Female 1/4” Balanced – Unbalanced |
| Headphone Output Impedance | 3 unbalanced |
| Power Requirements | |
| Detachable line cord | ~100 – 120V, 50/60 Hz, 24 W ~220 – 240V, 50/60 Hz, 24 W |
| AC Connector | 3-pin IEC 250 VAC, 10 A male |
| Display LEDs | |
| Front power on/of | |
| Front input level meter | |
| Front output level meters | |
| L/R mute switches | |
| Physical Properties | |
| Height | 1.8 in / 46 mm |
| Width | 19.0 in / 483 mm |
| Depth | 8.8 in / 224 mm |
| Weight | 8.0 lb / 3.6 kg |





