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Stereo Amplifier - 75W RMS x 2 ChannelsMCM Part #: 50-4610  |  Stellar Labs Part #: SLA150

Stereo Amplifier - 75W RMS x 2 Channels 4.3 stars from 5 reviews.
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150W Stereo Power Amplifier
This amplifier was designed specifically for use in distributed audio installations, where high reliability and premium sound quality are a must. Remote on/off triggering and signal sensing allow this amplifier to be set up in equipment racks, with no further contact required. Rear mounted master level controls keep installation safe from future tampering. Two auto–switching inputs allow automatic operation when used with more than one system.

Product Description

    This amplifier is perfect in whole-house audio systems because it will connect to any existing line level or speaker level source. Auto power sensing turns on the amplifier automatically, as well as off when not in use. 12VDC input trigger is provided, to allow on/off command to come from another source. Additionally, a 12V trigger output is provided to allow this amplifier's Auto-Power-On circuit to control external devices.

    Special Applications
    Adding zones to an existing system
    Speaker level inputs allow amplifier to be easily added to an existing system. Simply connect to line feeding existing speakers and drive up multiple additional pairs. Input impedance is very high, so existing system will see no additional load. Auto-Power-On feature will make operation totally automatic.

    Adding local components to a whole-house system
    Ceiling speakers in the bedroom or den are great for listening to the whole-house system. But what if you want to listen to a local music source or TV? This amplifier will connect to the existing whole-house system speaker lines, plus provide a line level input for a local source. When the whole-house system is playing, the music plays through as normal. When a local source is turned on, the amplifier switches only that pair of speakers to the local source. When the local source is turned off, the ceiling speakers automatically switch back to the whole-house system. All functions are fully automatic, including on/off. Set up once and forget it!

    Adding subwoofer to a single zone
    Whole-house system is great for providing background music, but sometimes a living room or rec room may need a "little more". Simply connect this amplifier to the speaker lines feeding that room, put the amplifier in bridged mode, and power a free standing or in-wall subwoofer.
    Features:
  • Front panel controls for level, balance and A/B speaker selection
  • Two sets of L/R inputs, each may be switched to accept line level speaker level signal
  • Auto–switching between inputs, with adjustable 3 ~ 15 second delay
  • Line level pass through output on input #2
  • Manual or auto–sensing power control
  • 12V trigger input allows power–on command from external components
  • 12V trigger output allows amplifier to trigger external components
  • Stereo and bridged mono operation
  • Heavy–duty binding post speaker outputs
  • Discrete output components
  • Detachable IEC type power cord

    Specifications:
  • THD: < 0.2% at rated power
  • Frequency Response: 20Hz ~ 20KHz +0.0dB / –0.5dB
  • S/N Ratio: 103dB, at rated power at 4ohms
  • Power requirements: Selectable 115/230VAC, 60/50Hz, 450W max
  • Dimensions: 3 1/2" (H) x 16 1/2" (W) x 14" (D)
  • Weight: 21 lbs

    Power Output:
  • 50W RMS per channel, both channels driven into an 8ohm load
  • 75W RMS per channel, both channels driven into a 4ohm load
  • 150W RMS bridged mono, into an 8ohm load
  • Model Number SLA150

Product Reviews

  • "much better than expected" by spider250 on 10/6/2009
    Stereo Amplifier - 75W RMS x 2 Channels
    Overall: 5 out of 5
    Value:
    Quality:
    Top 25 Contributor

    solid build, lots of features that make it great for background music use. this amplifier far exceeded my expectations for the price. as nice or nicer than amps I have seen from Niles, Speakercraft, Audio Source and others that are 3x the price.

  • "Great unit, lots of features for a very good price" by installpro on 4/30/2009
    Stereo Amplifier - 75W RMS x 2 Channels
    Overall: 5 out of 5
    Value:
    Quality:
    Top 10 Contributor

    This is the perfect amplifier to drive several sets of ceiling speakers in a house (impedance matching volume controls are needed of course). I love the speaker level input and automatic input selection. Considering the fact that this looks almost exactly like the audiosource amp200, I have to assume this is the amp150 that never got released. Good job MCM on getting your hands on a solid amplifier and offering it for a great price. If your rating system went to 10, this model would get an 11.

  • "Does a Great Job" by DaveWilliams on 11/11/2008
    Stereo Amplifier - 75W RMS x 2 Channels
    Overall: 5 out of 5
    Value:
    Quality:

    I have used two of these amplifiers when installing ceiling speakers for friends. For all-house sound distribution, I can't imagine needing a larger amplifier. This thing is a beast, sounds great and works flawlessly. I use the remote trigger, as I found this is more reliable than the auto-power on, but outise of this, this amplifier works great. In both cases, I am powering five sets of ceiling speakers, some are the single stereo, using impedance balancing volume controls, and there is more than enough power to spare. For all-house sound, I highly recommend using this amplifier.

  • "Great Amplifier" by NeubaumTurk_DYCA on 9/22/2008
    Stereo Amplifier - 75W RMS x 2 Channels
    Overall: 4.5 out of 5
    Value:
    Quality:
    Top 10 Contributor

    I have used a few of these, and several of the SLA-250's for whole-house installations, and they are absolutely bullet proof. In all cases, I use the 12V trigger in, as this generally is more reliable than auto sensing, and they work great, even with loads slightly below 4 ohms. Some amplifiers were installed in the last few months, some have been in use for about a year. So far my experience has been 100% successful. I highly recommend these units.

  • "Worked well when it worked" by amusch on 4/15/2008
    Stereo Amplifier - 75W RMS x 2 Channels
    Overall: 2 out of 5
    Value:
    Quality:

    I have 4 of these units at my school, two have died, and the blue front LED went out on another one. All in all, I wish they had longer than a 90 day warranty. I will be ordering a different model next time. I didn't give them a 1 because when they worked, I really enjoyed them and they did their job.

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Package Specifications & Dimensions
Weight:29.63 lbs.
Hazardous:No
Warranty:365 days
Need to Return?
Length:22.5 in.
Width:19.5 in.
Height:6 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No
Catalog Pages
Catalog/Page:MCM Cat 55, Page 011
MCM Cat 54, Page 048
PDF Reference

Requires Adobe Acrobat Reader.

Mfr. Info

Stellar Labs Logo
Mfr. Name:Stellar Labs
Mfr. Part Number:SLA150