Norman Audio

Used Spectral DMA-260 Power Amplifier

The DMA-260 High Resolution Amplifier shares with other Spectral components the creative uncompromising use of edge-of-the-art technology, dedicated precision manufacture, and Spectral’s experience with live sound at recording sessions. From extensive listening and design experimentation, Spectral has consistently pioneered component systems having fast settling, high-speed circuit architecture. These have invariably outperformed more traditional often cumbersome high-end design methods to achieve superlative detail, staging and listener involvement. Indeed, test methodology simulating music waveforms and hearing acuity confirm that quickness of response and rapid signal extinction when reproducing complex dynamics are mandatory for accurate music reproduction. Only then can one preserve instantaneous waveform accuracy to prevent cover-up of delicate musical signals by previous events. Construction and performance of the Spectral DMA-260 High Resolution Amplifier for this demanding criterion and resulting sonic resolution are unmatched among contemporary high-end amplifier designs..

Specifications

Power Output:
(continuous)
@ 8 ohms – 225 Watts RMS
@ 4 ohms – 390 Watts RMS
@ 2 ohms – 595 Watts RMS
Output Current:60 Amps peak per channel
Frequency Response:ą0.1 dB, DC-150 KHz
ą1 dB, DC-1 MHz
ą3 dB, DC-1.8 MHz
Distortion:Static:
Less than 0.015% from DC to 100 KHz, typically 0.009% @ 225 WRMS/8 ohms
Dynamic:
8 Tone Cluster Test 20 KHz @ 500 Hz separation; 0.01% 8 ohms; 0.015% 4 ohms
Speed:Rise Time:
Less than 400 nanoseconds

Settling:
1.5 microseconds to -40dB

Slew Rate:
600 volts/microseconds
Noise:Signal to Noise:
97dB unweighted, 107dB ASA A
Crosstalk:
-102dB @ full power 8 ohms
Input:Impedance: 
10K ohms
Sensitivity:
1.5 volts/ nominal output
Power supply:Line Voltage:
100 volts, 120 volts, 240 volts (factory set)
AC Voltage Range: ą10%
Maximum Consumption: 1600 Watts
Quiescent Consumption: 250 Watts
Operating Temperature:
0° to 50° Celsius range; 32° to 122° Fahrenheit
Protection Features:DC Protection Servo: 0.5 volt range
Current Limit Onset: 40 Amps
Thermal Threshold: Protects at 85° Celsius, 185° Fahrenheit
AC Main Fuses: 2 @ 2.5A 3AG slo-blo, for 100 – 120 VAC
Size and Weight:Dimensions (W x H x D):
19″ x 7 1/4″ x 18″

48.22 cm x 18.4cm x 45.8cm
Weight: 66 lbs, (27.2kg) Net

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Sale Price: S$8,000

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