SpeakerCraft MRA 664 - Large
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SpeakerCraft MRA 664 - Large
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SpeakerCraft MRA 664 Multi Channel Amplifier

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SpeakerCraft MRA 664 Multi Channel Amplifier




  • Power Supply: 100-120 / 220-240 V~, 50 / 60 Hz
  • Fuse Rating: T5 AL, 250 V~
  • Power Consumption: 200 W
  • Amplifier Power Output: 30 watts/ch @ 8Ω 45 watts/ch @ 4Ω
  • THD: <0.10%, 1 watt output into 8Ω
  • Signal to Noise Ratio: >100db, 20Hz-20kHz unweighted
  • Audio Source Inputs: 6 – analog, RCA connectors
  • Audio Zone Outputs: 6 – 4 Amp + Preamp, 2 Preamp Only
  • Speaker Connections: (4) detachable, (4) pole terminals
  • IR Outputs: 6 routable
  • Ethernet: 1 RJ-45 10/100 BaseT
  • USB: 1 Type-A



  • Unit Dimensions:
    • 17 1/4"W x 4 15/16"H x 12 7/8"D
    • with feet (437 x 100 x 328 mm)
  • Rackmount Dimensions:
    • 17 1/4"W x 3 1/2"H (2U) x 12 7/8"D
    • without feet(437 x 88 x 328 mm)
  • Weight: 18 lbs. (8,6 kg)



The NEW SpeakerCraft MRA-664 is the whole home audio controller that delivers up to half a dozen unique music sources for amazing sound in every room of the house. This MRA is the first to integrate multi-room audio along with home theater control in a way that is simple to set up and brilliant to listen to. A job that might have once required hours of programming has been distilled down to a simple execution. And, for larger homes, two MRAs can be paired to create a six-source, 12-zone system. That means 12 rooms with music porting into each of them.

Additionally, all zones are equipped with fixed or variable pre-outs, making it simple to add power and volume with one of our new SpeakerCraft Amplifiers (SC2-50, SC2-100, SC2-150, SC12-30, or SC16-50). 

Key Features

  • App control from free iOS, Android and Windows
  • Easy wizard based setup from the app
  • Full source control
  • Massive IR and IP control library
  • Sonos integration providing control of Sonos from within the SpeakerCraft app
  • Control of the AV Receiver in the Home Theater

Speakercraft Electronics Warranty: 
SpeakerCraft Electronics carry a 2 year manufacturers Warranty.

We are authorised SpeakerCraft retailers. Brand new and complete with the full warranty.



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