DMC-30 Preamplifier Technical Data
Input Compliment: 7 inputs
Output Compliment: 3 outputs - normal, balanced, tape
Input Impedance: 15k ohms
Input Attenuation: 0, -12 dB
Output Impedance: 100 ohms
Control Compliment
Output Attenuation: Motorized fader conductive plastic, modified log taper
Output Balance: Relay attenuator system with center position bypass
Mute Switch: 0, -20 dB attenuation
Mode switches: Stereo/mono, absolute phase
Input Selections: 6 plus tape monitor
Recording Amplifiers
Input Impedance: 11K ohms, 100 ohms minimum load
Output Impedance: 2K ohms
Protection Circuit
Protection Mode: CD offset, oscillation
Method: Crowbar output relays
Sensitivity: 20 mV continuous DC
Recovery: Approx. 10 seconds
Chassis Temperature: Internal 40 deg. Celsius @ 25 deg. room temp
Model 201 Balanced Output Module
Fully Balanced Operation: All DC coupled
Frequency Response: DC to 2.5 MHz +-0.10 dB
-3 dB at 15 MHz
Any level to 36 V RMS
Slew Rate: 1000 V/us or greater
Rise Time: 70 ns
Distortion: Less than .01% THD and IM
Crosstalk: Greater than 90 dB
Noise: 105 dB A Weighted,
ref 100 mV @ 1 KHz
Output Voltage: 1.6 VRMS, 100 V
peak to peak maximum
Output Current: 1 Amp maximum per channel, balanced out
Gain Options: 15 dB, 21 dB
Model 303 Balanced Input Module (optional)
Fully Balance Operation: All DC coupled
Frequency Response: DC to 10 MHz +-0.10 dB
-3 dB at 15 MHz
Slew Rate: 500 V/us or greater
Distortion: Less than .01% THD and IM
Input Impedance: 10K ohms
Gain: 0, -10dB
attenuation continuaously variable
Power Supply Technical Data
Line Voltage: 100 volts, 120 volts
AC Voltage Range: +-10%
Quiescent Consumption: 80 Watts
Protection: Short circuit, over voltage, line transient protected
Operating Temperature: 0 deg. to +50 deg. Celsius
32 deg. to +122 deg. Fahrenheit
AC Main Fuse: 5 x 20mm 1A slo blo
DMC-30 Preamplifier Mechanical
Weight: 26 lbs. (11.8 KG)
Dimensions: 4 1/10"H x 19"W x 12 1/4"D (10.4 cm x 48.3cm x 31.1cm)
All information and specifications provided herein are subject to change owing to the evolutionary nature of Spectral designs and technology.
All Spectral products are covered by a three-year limited warranty for parts and labor.

All files are copyright 2013 by Spectral Audio, Inc.