Spectral DMA-150 s2 - Stereo Version of the DMA-360

Only select few amplifiers are capable of delivering the full high-definition sonic ideal. This Spectral DMA-150 series2 is one of them, an open window to music. It’s hard to explain; if you belong to the Spectral club, you know what I mean.

The DMA-150 Series 2 is identical to a DMA-360 except for input/output wiring/connectors, a different power transformer and the panel markings. Note the DMA 360 / 150 markings on the circuit board photo.

Bought from the original owner in 2015. She purchased from a New York City dealer after a long search for a great amplifier that cost less than a small automobile.

The cosmetic condition is very good except two small light scratches on the top of the faceplate, which were on the amplifier when purchased. Includes original box and packing, owner’s manual, and AC cord. Will ship double boxed.

Buyer responsible for shipping and PayPal fees

See my other listing for a Threshold FET-10 V4 Preamp. Coming soon : Spectral DMA-90, Parasound D/AC 2000 Ultra with the Ultra Analog R2R module, and power cords (Pangea AC-14, LAT AC-2, and PS Audio).

From the Spectral website:

DMA-150 Stereo Power Amplifier

Power Output: (continuous)
@ 8 ohms - 150 Watts RMS
@ 4 ohms - 300 Watts RMS
@ 2 ohms - 570 Watts RMS

Output Current: 60 Amps peak per channel

Frequency Response:
±0.1 dB, DC-150 KHz
±1 dB, DC-1 MHz
±3 dB, DC-1.8 MHz

Distortion:
Static:
Less than 0.015% from DC to 100 KHz, typically 0.009% @ 200 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/microsecond

Noise:
Signal to Noise:
97dB unweighted, 107dB ASA A
Crosstalk:
98dB @ full power 8 ohms

Input:
Impedence:
100K ohms in parallel with 100 pf
Sensitivity:
1.5 volts/nominal output

Power Supply:
Line Voltage:
100 volts, 120 volts, 240 volts (factory set)
AC Voltage Range:
±10%
Maximum Consumption: 1600 Watts
Quiescent Consumption: 250 Watts

Operating Temp: 0° to 50° Celsius range; 32° to 122° Farenheit

Protection Features:
DC Protection Servo:

0.5 volt range
Current Limit Onset:
60 Amps
Thermal Threshold:
Protects at 85° Celsius, 185° Farenheit
AC Main Fuses:

2 @ 2-1/2A 3 AG slo-blo, for 100 - 120 VAC
2 @ 1-1/4A 3AG slo-blo, for 220-240 VAC

Size and Weight:
Dimensions:

48.22cm (19")W x 18.4cm (7 1/4")H x 45.8cm (18")D
Weight:
62 lbs, 28.1 KG Net