[. . . ] [. . . ] 1 meg ohm high-z input for keyboards, passive & active, acoustic, bass and electric guitars FILTER Variable bass cut filter 6dB per octave passive type 30Hz to 140Hz HI PASS (in) engages bass cut filter ATTACK Variable attack time for the compressor 2mS to 200mS Note: For the best sonic performance, allow thirty minutes for warm-up. When not in use, turn the ac off. Enjoy! VU Recessed screwdriver adjust for 0dB when meter switch (in) for gainreduction RELEASE Variable release time for the compressor 100mS to 5S POWER LED indicates ac power is on BASS 4-position switch selects turnover passive design shelf frequency 15Hz to 150Hz TREBLE LOW MID HIGH MID Vari frequency Vari frequency 4-position switch 35 to 450Hz 220 to 2k8Hz selects turnover passive design x10 x10 350 to 4k5Hz 2k2 to 28kHz shelf frequency 10kHz to 32kHz Bandwidth (Q) (in) = narrow (Q=0. 5) (out) = broad (Q=0. 2) EQ to SC Routes the mid band EQ sections (2) into the compressor sidechain for de-ess, effects and frequencyselective compression. AVALON Class A Vacuum Tube DIRECT RECORDING SIGNAL PATH AC POWER Note: Check rear power input connector for correct local ac voltage. Allow forty seconds for the tubes to stabilize prior to use. VT-737SP Avalon Design is a division of Avalon Industries, Inc. c 2000 Note: The bass and treble EQ sections remain in the audio path when the EQ switch is (in) [. . . ] [. . . ]