Just installed a Arc 400.4 amp and Hertz Milli 6.5 coaxel speakers. Can I run this amp bridged or is the 300w going to blow my speakers.

 

Slydog just did this to the Mille components...although those are rated a tad higher. I personally think 300 may be a bit too much for those speakers, but that amp has some very clean undistorted power. I would bridge it and back the power down a bit to be safe.

 

Thanks that's what I'm going to do, sounds awesome bridged compared to a standard setup.

 

Those mpx are 100w rms. I wouldn't run more than 175 rms to them. I set mine with a scope bridged and still had to back off a tad. Honestly 150w rms the 600.4 puts out should do plenty for the mpx. If you go bridged I would use a dmm and set the bridged at 25v to get 175 watts. IMO you don't need that power.

 

I agree. I think the 175-200 is probably the sweet spot. The thing with giving so much power to those (or any) speaker is perhaps the speaker "can" take 250w, but it surely can't produce low end with that much juice. So there is a trade off. How loud can I get these speakers and still have them produce low frequencies and sound good.

 

I ordered a new Rigol oscilloscope to have my own to play with. I want to use a 100hz test tone, a 500hz tone, and a 1 k and see how my current settings show and how the amp does at the current settings at the varying frequencies.

 

dittto... I agree with Slye... too much

 

If you do it you're gonna have to "Control" the power to em. Keep the gains very low and don't turn the volume up too loud. Like the old saying goes "It's better to have it and not need it than to need it and not have it" If there is any amp you can do it with it would be the Moto 600.4. Very clean power! and honestly I don't think you're pushing 300 watts bridged with that amp. Need my friend aawav to bench test that thing!!

 

Believe SlyeDog tested it in the sticky - getting close to the 300W!
Keep in mindm we are talking about RMS Watts here, not Peak.
IMHO single channel... the gain you theoretically would get is "mininmal", but the risk blowing your speakers will exponentially increase.

 

stay away from 50 Hz yes - that is for subwoofers.
I got a bunch of test files here... all depending on what you need. PM me if needed.