Equivalent volume (Vas): 77

in series): 3

✓ Automatic turn-on function

✓ High level input with auto-on function & dummy load

HiFonics ZXS550/2 Packaging Unit:Individually Equivalent volume (Vas): 77HELIX M FOUR If you really want to get your front and rear speakers up to speed, then the M FOUR is exactly the right "tool" for it. With a full 100 watts of continuous power per channel at 4 ohms as well as at 2 ohms, it heats up the voice coils despite its super compact dimensions. The amplifier itself stays cool thanks to highly efficient Class D technology. But even in 3 channel or 2 channel configurations, things really get down to business with