After you put 1.19.0 in don't forget to do the Calibration Reset. It makes a worldof difference..

 

I am running 1.9.2 with awesome results as every time I try 1.9.0 the radio volume surges like hell. I have tried the Rushmore radio reset many times as well.

 

Hot the download and hu reset done. Definitely need to readjust my bt355 LL. When I do this where do you guys recommend I put the bass and treble at for best results

 

Software version works best with a stock flash. Has the HU been flashed by the dealer?

 

Nope it's how it comes from factory.

 

Are you using the Biketronics Line Leveler or something else?

 

Yes I have BT4180 and BT355LL for the front and rear channels

 

When you adjusted the LL the first time did you use a DMM or by ear?
Did you adjust the HPF?

 

I did it by ear. I didn't touch the HPF.

 

Good. Leave the HPF as is. After tuning with the LL's the gains should be close to the 12:00 as shown below. If you want to check the voltage at the speaker outputs on the amp with a DMM they should be 24.50 VAC with a 1000Hz 0dB test tone volume 15. Fade set to middle along with bass and treble as shown below.