100 watt rms speakers on 150 watts...how to set gains?

[7ender 10+ year member]

Noob question here...

I don't know how to do this. I have 100 watt rms speakers (cadence cwm6) off of a 150x2 amp (txa600).

How do I make sure i'm only giving them 100 watts? Do I just set my gains and make sure there is no clipping, or is there a way to measure?

Also, I've been interested in using the dmm method to set my gains. I have a dmm, but iv'e contacted the cadence and they informed me that I need a 4 ohm dummy load to put on the amp when I do this. Where can I get this, and why do only certain amps need it?

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[SVTLightning01 10+ year member]

some amps go into protect or something with no load. Best thing to do is try.

TO set your gains you would set HU volume to 3/4 and set your gain as follows

sprt(100wrms * 4) = 20vac

There is a sticky in the amp section or you can follow the one on jlaudio.com to set using the DMM method.