4-channel headphone/amplifier/line distributor has superior performance and greater flexibility. With extensive switching functions, extreme efficiency, and unmatched sound quality, the ultra-versatile headphone is a universal 4-channel multi-purpose headphone amplifier/line distribution system—perfect for the most demanding professional stage and studio applications.
Four totally independent stereo high-power headphone amplifier/line distribution channels in a convenient single rack package
Easy-to-operate unit allows maximum variety of monitoring and stereo line level signal distribution options
Input source select switches and Phone and Line 1/4” TRS stereo outputs on each channel
Four independent stereo input sections enable independent selection of any of the four stereo signals for each headphone amp/line distribution channel
Selection of up to four completely independent monitor signals for each set of headphones connected to headphone allows optimum monitoring flexibility
Separate volume control for each channel adjusts the level to both phone and parallel line outputs
Easily expandable for optimum versatility in any application—up to four HPA-4s can be daisy-chained for additional fully selectable headphone/line distribution requirements
No-compromise circuit design, stringently selected tight-tolerance components and low-noise
High-quality, rugged construction for maximum reliability
Shielded internal dual regulated power supply with 115V(60Hz)/230V(50Hz) select switch
Amplifier Signal Type - Audio
Amplifier Type - Headphone Amplifier
Product Weight:
6.93 lbs
Audio Input Connectors:
1/4" jack
Audio Input Type:
Unbalanced
Audio Input Impedance:
47 kiloohms
Audio Input Peak:
+25 dB
Audio Input Gain Control Range:
+35 dB
Headphone Power Amplifier Outputs Maximum:
300mW, 1W (@ 32 ohms)
Output Impedance:
22 ohms
Maximum Gain:
+20 dB
Line Distribution Output Connectors:
1/4" Jack
Line Distribution Output Type:
Unbalanced/Parallel
