908 Stereo Audio Amplifier & Switcher (40 Watts per Channel) The 908 is a high−performance audio amplifier for line−level stereo audio signals. It accepts either a balanced or unbalanced stereo audio signal and delivers a speaker output of 40 watts RMS per channel into 8Ω loads. FEATURES Controls - Control knob to adjust volume, bass, middle, treble and balance. Mute and loudness buttons, plus a 10V control port for adjusting the audio gain. USB Port - For firmware update. Flexible Control Options - Front panel, RS−232 (K−Router™ Windows®−based software is included), Ethernet, IR remote (included) and 10KΩ volume level. Compact MegaTOOLS® - 2 units can be rack mounted side−by−side in a 1U rack space with the optional RK−T2B universal rack adapter. 908 TECHNICAL SPECIFICATIONS INPUTS: 1 unbalanced stereo audio on RCA connectors; 1 balanced stereo audio on a 5−pin terminal block connector; 1 USB connector. OUTPUT: 1 speaker stereo audio on a 4−pin terminal block connector. INPUT Unbalanced: 360mVpp; balanced: 220mVpp. SENSITIVITY: MAX. VOLTAGE Unbalanced: 35dB; balanced: 40.5dB. GAIN: OUTPUT POWER: 40W per channel into 8Ω. BANDWIDTH (3dB): CROSSTALK: 22kHz. CONTROLS: Level: <−30dB to 35.5dB; balance: −30dB to 0dB; loudness: −14dB to 0dB @1kHz; bass: −15dB to 12dB @100Hz; mid: −15dB to 11dB @1kHz; treble: −14dB to 13dB @10kHz; input selector buttons, mute button, loudness, bass, mid, treble, balance, volume buttons, IR, RS−232, Ethernet, 10V volume control, 1 USB port for upgrading firmware. COUPLING: Input: AC, output: DC. AUDIO THD + NOISE: AUDIO 2nd HARMONIC: SIGNAL/NOISE RATIO: AMPLIFIER TYPE: 0.15%. POWER CONSUMPTION: DIMENSIONS: 24V DC, 2A. WEIGHT: 0.6kg (1.32lbs). ACCESSORIES: Power supply, Windows®−based Kramer control software, IR remote control transmitter. OPTIONS: RK−T2B 19” rack adapter. <−57dB @20kHz. 0.06%. 63dB, 80dB @10% distortion. Class D. 18.8cm x 11.4cm x 2.4cm (7.4" x 4.5" x 0.94") W, D, H.