Another Speaker Question
Tourer
Joined: Mar 2011
Posts: 464
Likes: 3
From: Indiana
Just peel the stock grills off the speaker mounts and put between 6.5 adapters and fairing. Mine worked great with Dragonfly adapters.
Outstanding HDF Member
Joined: Mar 2009
Posts: 2,930
Likes: 4
From: OHIO......UGH !!
Road Captain
Joined: Aug 2005
Posts: 743
Likes: 4
From: Ohio
You can't (or at least shouldn't) run the Polk MM series with the PBR300X4 4 channel amp. It's is rated for 4 ohms ONLY. I called RF to verify this. I'm going to run biketronics titan II in front and Polk 6.5" DXI series in the rear. The Polk DB and DXi series are 4 ohms, although the MM is a better speaker it is 2.7 ohms.
Outstanding HDF Member
Joined: Jul 2010
Posts: 2,727
Likes: 6
I can't answer about the amp, but yes, the polk will sound better than the hog tune and the boom audio speakers.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
3rd Gear
Joined: Nov 2008
Posts: 7
Likes: 0
From: VA
ARC audio has a 4 channel amp that is compatible with the Polk MMs. I'm getting ready to install their 2 channel amp in my fairing. I am currently running the MM6501 component speakers. No fitment issues at all.
Road Captain
Joined: Aug 2005
Posts: 743
Likes: 4
From: Ohio
J&M and Arc make the 4 channel amp that will run 2 ohm speakers. The amp is big and requires some extra mods to get it to fit. You need to remove some gauges and cut bezels. Also pricey.
The PBR300X4 can be bought for $140.00 on Amazon. The biketronices Titan II can be bought for $199.95 at Direct Harley or Eastern Performance Cycle did a price match when I called them and had them in stock. The Titans come with the adaptors.
I'm still looking for a good price on the DXi650 Polks for the rear.
Hogtunes Big Ultra kit can be bought around $400.00 complete with 4 speakers, amp and wiring . Some people are very satisfied with that. It will be louder and clearer than stock for sure.
The PBR300X4 can be bought for $140.00 on Amazon. The biketronices Titan II can be bought for $199.95 at Direct Harley or Eastern Performance Cycle did a price match when I called them and had them in stock. The Titans come with the adaptors.
I'm still looking for a good price on the DXi650 Polks for the rear.
Hogtunes Big Ultra kit can be bought around $400.00 complete with 4 speakers, amp and wiring . Some people are very satisfied with that. It will be louder and clearer than stock for sure.