Spectral Audio DMC-30

Specifications

DMC-30 Reference Preamplifier

Front Panel Controls

Output Level
Balance left/right
Input selectors
Monitor switch
Stereo/Mono switch
Absolute Phase switch
Mute Switch
Surround LED indicator
Protection LED indicator
Front Panel Display
Output Level display - 50 step LED
Output Balance display - 50 step LED
Rear Panel
5 RCA Input connector sets (gold)
Balanced Input Neutrik XLR connectors (gold)
Tape input and output RCA connector set (gold)
Main Output RCA connectors (gold)
Balanced Output Neutrik XLR (gold)
AC Power input connector, switch and line fuse
DMC-30R Remote Control
Control Buttons
Output Level
Channel Balance
Mute
Input selectors
Stereo/mono
Phase Invert
Tape Monitor
Display Brightness
Control Rate
Control Reset

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.

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.