VAC CPA1 - Manual (Page 5)

CPA1 Mk III / CLA1 Mk III NOMINAL SPECIFICATIONS
Frequency Response:
Phono, RIAA +/-.15 dB from 20 Hz to 20,000 Hz
Line, 7.5 Hz to 180 kHz +0/-0.5 dB into 20,000 ohm load and 1 meter shielded interconnect
1.5 Hz to 380 kHz +0/-3.0 dB into 20,000 ohm load and 1 meter shielded interconnect
Tape: 2.0 Hz to 380 kHz +0/-3.0 dB into 20,000 ohm load and 1 meter shielded
interconnect
Phono Stage Gain - CPA1 only (1 kHz at line stage input):
High gain mode: 65 dB
Medium gain mode: 55 dB
Low gain mode:
39 dB
Phono Overload:
High gain mode: 3.8 mV @ 1 kHz, 36 mV @ 20 kHz, .45 mV @ 20 Hz
Medium gain mode: 12.2 mV @ 1 kHz, 110 mV @ 20 kHz, 1.4 mV @ 20 Hz
Low gain mode:
88 mV @ 1 kHz, 820 mV @ 20 kHz, 9.8 mV @ 20 Hz
Line Stage Gain (1 kHz):
Passive buffered mode: - .75 dB
Medium gain active mode: + 9.0 dB
High gain active mode: +18.5 dB
Line Output vs. Distortion (1 kHz into 20,000 ohm load):
1.5 V @ .1% THD
5.0 V @ .2% THD
11 V @ 1.5.% THD (overload)
Absolute Phase:
Line stage, Passive mode is non-inverting from line inputs
Line stage, Active modes is inverting from line inputs
Tape output is non-inverting from line inputs
Phono stage delivers an inverted signal to line stage and tape buffer
The above comments are true for the optional balanced outputs with respect to the EIA
standard
Tube Compliment:
CPA1 CLA1 Type
6
2 E83CC/ECC83/12AX7A
2 0 E88CC/ECC88/6DJ8/6922 (low noise for MC)
2 2 E82CC/ECC82/12AU7A
AC Power Requirements (US market):
110 VAC to 126 VAC
Alternative input voltages selectable at the fuse holder (adjust fuse value accordingly as
well)