Zumo 665 & Autocom SuperPro AVI - low sound - K-Bikes.com - Excellence in Motion
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post #1 of 3 (permalink) Old Feb 4th, 2013, 1:28 pm Thread Starter
Join Date: Jun 2006
Location: Batavia, IL,
Posts: 238
Zumo 665 & Autocom SuperPro AVI - low sound

I had a 2730 and it worked fine with my Autocom. It died so I bought the 665. The problem is the volume is about 15% lower than the 2730 and I can't hear music, directions, etc. at speed. Have any suggestions? I have the Autocom cranked all the way up and the 665 at 100% volume.

2006 GT
2002 RT sold
1985 Maxim X sold
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post #2 of 3 (permalink) Old Feb 5th, 2013, 11:24 am
cruizbz's Avatar
Join Date: Dec 2005
Location: Greater Chicago area, , USA
Posts: 373
I bought a amp at one of the BMWMOA national rallies for under $100 a few years ago. Now, I can only crank the volume up to about 25%. Can't remember the manufacturer, but the bike show is next week in Chicago. Check some of the vendors.

04 K12GT
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post #3 of 3 (permalink) Old Feb 5th, 2013, 5:22 pm
Join Date: Apr 2010
Location: Saetre, Bu, Norway
Posts: 100
If you are into soldering electronics you may increase the amplification in Autocom.

You replace the 9V regulator with a 12V and then you change the value for 4 resistors.

One option that I have not tried my self, which may work, is to replace the stock speakers 32Ohm with 8Ohm speakers from Autocom.
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