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LD Systems HPA 6 19″ Headphone Amplifier 6-Channel


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LDHPA6 6-Channel Rackmount Headphone Amplifier

The LD Systems HPA 6 is a highly flexible 1U 19“ rack format headphone amplifier with 6 fully independent channels and comprehensive features for a wide range of professional audio monitoring applications.

Each channel provides a 6.3 mm TRS headphone output on the front panel with level control, mono/stereo switching, discrete left/right muting and a 6.3 mm TRS Aux input with Main/Aux balance control for mixing in further signal sources. Four-segment LED meters permit visual output level monitoring, and two 6.3 mm TRS outputs per channel on the rear allow for connecting a total of 18 headphones.

The HPA 6’s main section features a master level control with eight-segment LED metering and 6.3 mm TRS input to mix in an additional source with all channels. The rear panel provides the main stereo inputs on balanced XLR and 6.3 mm TRS connectors and stereo outputs for daisy chaining multiple units.


Product type:  Headphone Amp:
Inputs:  8 (1 Main Input (Stereo), 1 Direct In (Stereo), 6 Aux In (Stereo))
Input connectors:  6.3 mm TRS, XLR
Input impedance:  13 k Ohm(s)
Line Outputs:  Main Output (stereo, balanced)
Line output connectors:  6.3 mm jack, XLR
Headphones ouputs:  6 x 3
Headphones outputs:  6.3 mm TRS
Power output:  6 x 125 mW
Minimum connected impedance:  8 Ohm(s)
Frequency response:  20 – 20000
Controls:  6 x Headphone Level, 6 x Input Mix Main/Aux, 6 x Mono Switch, 6 x Mute L&R, Main Input Level, Power
Indicators:  6 x channel level meter (4-segment LED chain), 6 x mono LED, 6 x Mute L&R LEDs, Main Input/Direct In Level Meter (8-segment LED chain), power LED
Operating voltage:  IEC power connector
Operating voltage:  110 – 120 V ~ 50/60 Hz or 220 – 240 V ~ 50/60 Hz, switchable
Cabinet material:  Metal
Cabinet surface:  painted
Width:  483 mm
Height:  44 mm
Depth:  217 mm
Weight:  3 kg
Accessories (included):  Power cord

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