Ohms Law app or DD toolbox app.

 

Thanks, 18 it is, then tune by ear

 

 

A bit of clarification. My original question was basically how to figure out your amps output voltage when using speakers with 2.5 or 2.7 Ohm impedance since the amp manufacturers only post output at 2 and 4 Ohms. I now know that you ignore the amps output and focus on the speakers RMS rating.

I was a little frustrated so I apologize if that came across in my posts.

On a positive note, my Kappa 62.ii speakers are covered under warranty and I am getting a pair of 62.ix replacement speakers. Meanwhile my trusty old Polk MM651's are keeping the tunes flowing.

Thanks, Jim

 

Thank you yes I see where I messed up in my math

 

When I was using the 62.ii speakers I had my amp set to all pass. I've read that I should have it set to HP and the head unit set to 80-90. Would this hold true for the 62.ix speakers as well?

 

 

Thanks

 

But don't be afraid to set a normal volume level, play ur favorite song and very slowly adjust the HPF from 60 to 200 to hear exactly what is happening. At 60 ur letting a lot more lower freqs enter the picture thus will be volume limited due to the potential distortion those freqs bring. At 200 that sucker can get damn loud mainly because the distortion is now not limiting you however it sounds like hell because there really is not much warmth, or mid bass. A good balance seems to be 80-90 for most coax and Component speakers where u still get a bit of warmth but also the undistorted loudness required at higher riding speeds. After u set the crossover to ur liking really make sure u have undistorted sound at 3/4 volume. If u even think ur hearing distortion at this new 3/4 max volume, adjust the gains accordingly. HPF has a direct on the available gain setting you might use. Higher HPF = higher gain. Lower HPF = lower gain due to those lower freqs that are warm on the ears but distort early in the game.

U picking up what I'm laying down?

T

 

Just reinstalled my B52 amp. Using the rapid tables linked in this thread I set my voltage to 24.64. Used 225 watts at 2.7 Ohms. (200@4 Ohms, 250@2 Ohms rating) Previously I was using 18 volts at a volume setting of 27 out of 35. I had to keep going over 27 to hear at highway speeds. With this new setting hopefully I can hear at a lower volume. My head unit has an option where I can turn off high gain, volume max of 35, and reduce it to volume max of 25. Hopefully I can live there.

jim