Visual Sound, Inc. Universal 4-Channel Multi-purpose Headphone Amplifier/Line Distribution System HPA-4

Nady Systems, Inc. - Pro Audio The ultra-versatile HPA-4 is a universal 4-channel multi-purpose headphone amplifier/line distribution system. *Four totally independent stereo high-power headphone amplifier/line distribution channels in a convenient single rack package. *Input Source Select switches and Phone and Line 1/4" TRS stereo outputs on each channel, and 4 independent stereo input sections (each with servo-balanced L & R 1/4" TRS jacks) enable independent selection of any of the 4 stereo signals for each headphone amp/line distribution channel. *This matrixing capability allows selecting from up to 4 completely independent monitor signals for each set of headphones connected to the HPA-4 for optimum monitoring flexibility or 4 separate choices for each channel?s Line Output for enabling many useful, simple audio switching/routing solutions. *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-4?s can be daisy chained for additional fully selectable headphone/line distribution requirements.