audio research
MCP-33

Description
Tube moving coil stereo phono pre-preamplifier.

Introduced
1985

Discontinued
?

Revisions
-

Options
-

MSRP (US new retail)
$1,395

Specifications

Frequency response ± 1dB 20Hz to 50kHz. (with 1 ohm source, 16dB gain, 50Kohm load) ±3dB 10Hz 250kHz
Distortion (THD) Less than .005% at 100mV output. Distortion decreases with decreasing signal.
Intermodulation distortion: Less than .01% at 100mV output.
Noise & hum Approximately 0.2µV equivalent input noise, RMS above 1kHz RIAA equalized.
Gain 16, 20 or 24 dB. front panel selectable.
Input impedance 1, 3, 10, 30, 100 ohms. Front panel selectable.
Output impedance 150 ohms, designed to properly interface with magnetic phono preamplifier input of nominal 50Kohms input impedance.
Maximum inputs 1.5 V, RMS (16dB gain position)
Rated outputs Maximum 10 V, RMS.
Power supplies  
Tube complement (4) 6DJ8/ECC88 LN, (1) 12AT7/ECC81, (1) 7044
Power requirements (USA) 90 to 135 VAC 50-60Hz, 70 watts maximum. Export units have an equivalent operating voltage range.
Other  
Dimensions 19" (48 cm) W x 5 1/4" (13.4 cm) H (standard rack panel) x 10 1/4" (26 cm) D. Handles extend 1 5/8" (4.1 cm) forward of front panel. Rear chassis fittings and connections typically will require 1 1/2" (3.8 cm) clearance behind the unit.
Weight 14 lbs. (6.4 kg) Net, 23 lbs. (10.5 kg) Shipping

Reviews

Vol. 8 No. 5

Pictures