ROLLS HA204P Portable Battery/AC Operated Headphone Amplifier

Full frequency response, four channel headphone monitoring device designed for the recording studio, or other professional applications. Each output boasts a whopping 20 dB of clean channel gain. * Stereo 1/8-in and Dual RCA Inputs * Rotary Volume controls * AC adapter included * 15-35k Hz frequency response * Lots of output level.... its loud! * 9V battery Operated *
Input Impedance: 47k Ohms * Max
Input Level: +13 dBV adapter, +8 dBV Battery *
Input Connectors: TRS Stereo 1/8-in, Dual RCA *
Outputs: 4 - TRS Stereo 1/8-in ( 3.5 mm) *
Output Impedance: 10 Ohms each output *
Max Gain: 20 dB/Channel *
S/N Ratio: >90 dB *
THD: <.
008% * IMD (SMPTE): <. 008% * Nominal
Current Draw: 30 Mills Min. / 400 Mills Max.
* Expected Battery Life: 8 Hours Continous use *
Frequency Response: 15-35K Hz.
* Recommended Headphone Impedance: 16 to 500 Ohms.
* Power: 15 VDC (Rolls Model PS27s) *
Weight:.
85 lb * Size: 4.5 -in x 1.125 -in x 4.5 -in