The Rolls HA204 is an inexpensive, 4-channel, portable headphone amplifier powered by a single 9 Volt battery or an optional AC adapter. This lightweight unit has a very cool and unique translucent blue appearance, and provides separate level control sliders for each of the 4 outputs. All connectors are 1/8" stereo mini jacks.
- Portable 4-channel headphone amplifier with separate output level controls
- 9 Volt battery operation
- High headroom, low noise
- High 20 dB gain per channel