SZA-1 Sub-Zone Amplifier


The SZA-1 is ideal for adding two unique amplifier channels for powering up to four speakers located in a sub-zone of a whole-house audio system. Simply connect to the FIXED stereo outputs included with every zone in an MCA-66, MC-66, Lync 6, or Lync 12. Then add a rotary or slide-type volume control between the SZA-1 and your speakers to control the volume.

Use the auto-on feature to automatically turn on the amplifier when an input source is detected and then return the amplifier to stand-by mode when the zone is not in use.

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Sometimes all you need is a little extra power.  This simplified, yet clean and great sounding amplifier does not include a tuner, preamp or other bells and whistles.  It was designed specifically to provide an affordable solution for simply amplifying speakers anywhere in your home.

As its model name implies, the SZA-1 (Sub-Zone Amplifier) is ideal for powering speakers in a sub-zone.  A sub-zone is usually a room near a primary zone that is forced to listen to the source selected by the primary zone, but which has its own volume control.

Speakers in the primary zone are usually powered by a multi-channel amplifier and the volume is controlled by a keypad or smart device (mobile phone, tablet, PC, etc.).  Speakers in a sub-zone require their own amplifier if you wish to control the volume separately- usually by adding an in-wall volume control somewhere in the sub-zone.

Another common use for the SZA-1 is to power a pair of speakers connected directly to the TV.  As our TVs have gotten thinner and thinner, the sound quality of the speakers inside the TV has noticeably diminished.  Adding this amplifier and a nice pair of speakers solves this problem.

If your TV is located in a home with one of our advanced Lync systems, chances are you will simply connect the TV's audio to the whole-house system.  But if you do not own a whole-house system, the SZA-1 offers a simple and affordable way to power speakers for the TV.


  • 1 stereo RCA input
  • 20 Watts RMS per Channel at 8 ohms, both channels driven
  • 35 Watts RMS per Channel at 4 ohms, both channels driven
  • Total Harmonic Distortion (THD) .07% at rated power
  • Frequency response 10 Hz - 40 kHz (-3dB, 1 watt)
  • Dimensions (HXWXD): 2 1/4" X 8 5/8" X 8 5/8"
  • Auto-on stand-by power: 5 watts


Owner's Manual

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