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 |
