I have an Amp from my old Cycle Sounds handlebar speaker system off my heritage. Does anyone know if this amp can be used with upgraded speakers and my Ultras stereo?

 

I didn't think to much about that amp, it didn't have enough bass and the high's were distorted, look into the ARC set up or the Elf amp on ebay. Then you hear some real sound, also get some quality speakers that can manage to power. Good luck.

 

The amp's output impedance should be matched to the impedance of the speakers you are using. HD changed from 8 ohm impedance speakers to 2 ohm impedance speakers with the 2006 model year.

Suggestion: include the model year of your Ultra when asking questions.

Don't know anything about the amp you reference.

Carl

 

My 85 watt stock sound system has been plenty for me. The stock speakers tone quality could be better.