Crescendo Audio Symphony S800.4 - 200 watt x 4 4 Channel

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Product Reviews

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  1. good strong amp.

    Posted by Ray on 17th Dec 2014

    I had an American bass sq 2000 on all my mids and tweeters in my car and this little crescendo sounds cleaner and louder and it looks better in my trunk with the crescendo 3500.

Crescendo Audio
Crescendo Audio Symphony S800.4
12.00 LBS
Ships within 2 business days

Product Description

Introducing the new Symphony series amplifiers by Crescendo Audio. These amplifiers are the results of over 2 years of from the ground up development.

The goal was to combine high fidelity signal clarity to an extremely efficient Class D full range circuit topology, housed in an ultra-compact newly designed Crescendo Symphony heatsink.

Comprehensive signal processing on the multi-channel Symphony amplifiers, such as bandpass capable crossover circuitry and individual clipping indicators for each channel make the 2 and 4 channel Symphony amplifiers some of the most versatile on the market.

All Symphony amplifiers are capable of being mounted in constricted areas of your car install if needed thanks to the dense form factor and effective design of the heatsinks.

The final outcome of the PCB design enables up to 97% efficiency @ 2 ohms on the monoblock Symphony models and up to 91% efficiency @ 2ohms per channel on the multi-channel models, making them the top tier of efficiency possible in car audio.


  • S800/4: 11 1/8" L x 7" W x 2 3/8" Tall
  • S550/2: 7" L x 7" W x 2 3/8" Tall
  • S600.1: 6 3/8" L x 7" W x 2 3/8" Tall
  • S1500.1: 9 5/8" L x 7" W x 2 3/8 Tall