This is lit from behind so that it glows when you turn the amp on. Instead, there's a hole cut in it, for a plastic, semi-translucent logo badge. The logo is no longer stenciled onto the front of the chassis. This is evident by the oval chassis vent holes instead of the old round ones. The B also has a better cooling system, mainly facilitated by improved venting. The power amps being able to handle a 2-ohm load is what allows the bridged operation to handle a 4-ohm and with this gets 880w 8ohms bridged and 1100w 4ohms. ![]() So the individual channels went from 400w 4ohms up to 440 per side, and 550w 2ohms per side. With the WT800B, the upgrade was to the power supply to enable bridge mono at 4 ohms and of course quite a bit more power. Electronics service manual exchange: schematics,datasheets,diagrams,repairs,schema,service manuals,eeprom bins,pcb as well as service mode entry, make to model and chassis correspondence and more.
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