Rockboard HA 4, headphone amplifier, 4 inputs and volumes
The RockBoard® HA 4 is a highly compact headphone amplifier capable of distributing a stereo input signal to four separate sets of headphones.
Each output channel has its own amplifier and volume control, delivering professional audio quality for each headphone.
Its rugged and compact construction makes it an ideal choice for studios and live applications. Up to four people can listen to the main mix during a recording session, or four musicians can follow a backing track at their preferred volume during rehearsals.
Warning: This headphone amplifier can generate high sound pressure levels. Prolonged unprotected exposure can cause permanent hearing damage. If you experience hearing loss or ringing in your ears, consult a doctor.
Four separate high-performance stereo amplifiers
Separate volume control for each output
Compatible with all types of headphones
Optimal sound quality at all volume levels
High-quality components and robust metal housing
12V DC / 40 mA power supply, 2.1 x 5.5 mm barrel jack, center negative (power supply included)
Input: 1 x 6.35 mm (1/4") TRS jack
Output: 4 x 6.35 mm (1/4") stereo TRS jacks
Signal-to-noise ratio (SNR): 82 dB
Total harmonic distortion (THD): 0.009%
Frequency response: +1 dB / -2 dB @ 20 Hz - 22 kHz
Gain: 20 dBu
Dimensions (L x W x H) with knobs and feet: 102 x 58 x 45mm / 4.02? x 2.28? x 1.77?
Weight: 182 g / 0.40 lbs
Ref. Euroguitar : 114391
