The Revolution separates the audio signal into individual stereo channels to drive two separate headsets or speakers, and images surround sound into 3 channels. Depending on the ohm rating of headphones, the Revolution will provide an 11.5 dB boost with no more than 1% harmonic distortion.

No difference in output or frequency response was observed when one headphone was plugged in or when 2 headphones were plugged in at the same time. *

The input impedance was found to be approximately 500 ohms. The output impedance was approximately 1 ohm. Maximum power transfers occur with a 16 ohm load.

Frequency Response: The Revolution employs similar output amplifiers to those found in CD players. Frequency response is equal to or exceeds specifications. Typical specifications are 20Hz to 20,000Khz +0/-3 dB 33Hz to 20Khz +0/-1dB (EIAJ CP-307 Method).

Output:
Up to 32 mW per channel, 2 channels driven
Distortion normally less than 1% with reasonable quality headphones.

Input:
Impedance 5K ohms@1Khz
2.6 volt (RMS) max input for no more than 1% distortion.

Input/Output:
11 - 11.5dB boost from CD player (acoustic)
Voltage gain: 11.5 dB boost

Power Requirements:VDC minimum: Cutoff may be considered as 0.8 volts per cell. Two AAAA cells are required. Use of alkaline batteries is suggested for longer playing time. Also works with rechargeable batteries; nickel-metal hydride type preferred. Battery life estimated at 20 hours, depending on headphone impedance and sound level. Input must be unplugged when not in use to conserve battery life.

Product Dimensions: Size: 4.3" x 0.875" x 0.832"
Weight: 3 oz for unit, 6 oz (170.10G) with 2 AAAA batteries (Energizer E96 or equivalent)
Color: High Gloss Black Finish

* Testing on the Revolution was done by EarTek Svc. of Holland MI by James J. Welsh, M.A.