MOON by SIMAUDIO Evolution 880M power amplifier Owner’s Manual

Below you will find brief information for power amplifier Evolution 880M. The Evolution 880M is a mono power amplifier that has been designed to offer state-of-the-art high-end performance in an elegant package, while retaining all the sonic hallmarks on which Simaudio has made its reputation. This power amplifier features balanced (differential) and unbalanced (single-ended) inputs and can be operated in either mode. The 880M is equipped with a self-diagnostic system and can be used with an optional remote control to turn the amplifier on and off.

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MOON Evolution 880M Owner's Manual | Manualzz

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Key features

  • Proprietary “Lynx” Technology
  • Custom toroidal transformer design
  • Fully balanced differential circuitry
  • Class A output to 10 watts
  • RS-232 port for firmware updates
  • Oversized power supply
  • Precision matched bipolar output transistors
  • High damping factor
  • Ultra rigid chassis construction
  • Designed to be powered up at all times

Frequently asked questions

The 880M has one balanced (differential) input on an XLR connector and one unbalanced (single-ended) input on a RCA connector. There are two pairs of heavy duty gold-plated speaker binding posts to accommodate bi-wiring.

The 880M has a main power rocker switch located on the rear panel. To turn the amplifier on, flip the switch to the ‘1’ (on) position. The blue LED on the front panel will blink for up to 10 seconds while it achieves standby mode. When it stops blinking and is not illuminated, your 880M is in standby mode. Next, briefly press the push button labeled “Standby” located on the front panel. You will hear a very faint click sound confirming that everything is in order. The blue LED on the front panel will illuminate, indicating that the 880M is now powered up and ready for use.

The blue LED on the front panel indicates the operational status of the 880M. When the LED starts blinking on and off during use, the circuitry is either over-heating or has detected the presence of DC in the input signal.

If the 880M turns itself off or will not power up, there may be DC present in one (or more) of the amplifier’s inputs coming from one (or more) of your preamplifier/processor’s outputs or connected source components. You must determine if there is any DC present. The best way to accomplish this is by first powering down the 880M via the main power rocker switch, then physically removing all inputs to the 880M leaving only the speakers connected. Attempt to power up your 880M again: A successful power up will indicate the presence of DC coming from your preamplifier or one of your signal sources (ie. CD Player).

Balanced interconnects have three separate conductors; one for the ground and two for the actual signal. These two signals are identical except that one is 180 degrees out of phase with the other. When these two inverted signals on a balanced line are input into a differential power amplifier such as the MOON 880M, any noise picked up by the interconnect will be eliminated since a differential circuit amplifies only the difference between these two signals: Noise on a balanced interconnect will be equal on both conductors and therefore cancel out.
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