Speakercraft SC2-150 Amplifier


  • 2-channel amplifier
  • bridgeable high-current design handles unusual and challenging loads with ease

power output:

  • 150 watts RMS per channel into 8 ohms (both channels are driven)
  • 270 watts RMS per channel into 4 ohms (both channels are driven)
  • channels are bridgeable to 550 watts RMS (mono) into 8 ohms
  • dual switching power supplies (one for each channel to eliminate crosstalk)
  • frequency response: 20-20,000 Hz (-3 dB)
  • signal-to-noise ratio: 102 dB (20-20,000 Hz)
  • total harmonic distortion: 0.2% (20-20,000 Hz)
  • three turn-on modes: music-sensing, voltage trigger, and manual
  • gold-plated binding posts spaced to accommodate dual banana plugs
  • 12-volt control output
  • voltage trigger input accepts 3-24V AC/DC
  • cascade audio outputs let you easily connect additional amplifiers to your system
  • independent right- and left-channel level controls for precise volume matching
  • fanless design with oversized heat sinks for cool, quiet operation
  • DC, short circuit, and overload protection with automatic reset
  • front-panel LEDs indicate Power, Active Status, and Protection Warning for easier troubleshooting
  • detachable AC power cord
  • rack mount ears included


Top-notch power and performance

Whether you’re using the SpeakerCraft SC2-150 as a part of a multi-room audio system or as the amplifier in your main listening room, you’ll find that it delivers plenty of pristine, dynamic stereo power. Its high-current design allows it to handle unusual and challenging loads with ease, including the ability to safely drive up to three pairs of directly connected 8-ohm speakers at the same time. And it’s not just all muscle. SpeakerCraft uses high-quality parts throughout to ensure that you’ll always get top-notch audio performance. Cutting-edge, independent power supplies for each channel prevent cross-talk interference, ensuring clean, spacious sound. Oversized heat sinks keep the SC2-150 cool even when driving heavy loads, eliminating the need for a noisy cooling fan and guaranteeing silent operation.


Installer-friendly features

SpeakerCraft knows what it takes to stay competitive in the world of custom installation. That’s why their amps include features that make them easy to integrate. You get three separate turn-on modes to bring the amp to life, plus a 12-volt DC control output to activate other devices such as motorized screens and curtains. Independent level controls for each channel allow precise volume matching to the rest of the system, and can also be used to limit volume to prevent speaker damage. Handy cascade audio outputs let you daisy-chain multiple amps together. And you can even combine its two channels into one to create a mono-power beast ? a great option for power-hungry outdoor speakers.

Weight 4899 g
Dimensions 4451 × 432 × 357 mm

Number of Channels 2
Power Output per Channel (8 ohms) 100
Power Output per Channel (4 ohms) 220
Frequency Response 20-20kHz
THD 0.2%
Minimum Impedance 4
Bridged Power per Channel 400 watts
Speaker Outputs 2


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