Audio Systems Find answers to all of your stereo, speaker and other audio technology questions here.
Sponsored by:
Sponsored by:

2ohm v. 4ohm amps; impedence mismatch

Thread Tools
 
Search this Thread
 
Old Sep 5, 2013 | 03:05 PM
  #1  
jefla's Avatar
jefla
Thread Starter
|
Road Master
Joined: Jul 2011
Posts: 1,170
Likes: 14
From: washington dc
Default 2ohm v. 4ohm amps; impedence mismatch

I've an SG w/ 2 fairng spkrs and plan to stick w/ 2. Currently I'm running the OEM headunit, Hogtunes 70.2 amp (2ohm), and Focal PC 165 (4ohm). Polyfilled the fairing. Thing sounds great but sometimes at high volume it looses clarity, which I assume is due to the impedence mismatch.

How should I fix this? Upgrade to a 4ohm amp or get 2ohm spkrs? When I picked the Hogtunes amp I was not so knowledgable and was pretty concerned about keeping weight down (weight factors into all my mods). I've been through two sets of spkrs before getting to the PC 165, wh/ are not light. If I change amps I'll get somewthing made in the US and so I'm leaning toward Hawg Wired. Evenutaly the OEM HU will go, mostly because I want blutooth.

Thanks
 
Reply
Old Sep 5, 2013 | 03:29 PM
  #2  
Pioneer74's Avatar
Pioneer74
Outstanding HDF Member
Joined: Mar 2012
Posts: 2,843
Likes: 0
From: Michigan
Default

You're losing clarity because the 70.2 is not powerful enough to get everything out of those speakers.

Upgrade the amp.
 
Reply
Old Sep 5, 2013 | 03:50 PM
  #3  
UltraNutZ's Avatar
UltraNutZ
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
Default

Originally Posted by Pioneer74
You're losing clarity because the 70.2 is not powerful enough to get everything out of those speakers.

Upgrade the amp.

 
Reply
Old Sep 6, 2013 | 02:54 AM
  #4  
KILRBUSA's Avatar
KILRBUSA
Tourer
Joined: Nov 2012
Posts: 267
Likes: 0
From: Phila, PA
Default

JEFLA-get a Rockford pbr300x2 and you will be set, has plenty power to rock those speakers and it's not gonna break bank $130 new on eBay. And yes it fits on top of HK unit behind batwing fairing.
 
Reply
Old Oct 28, 2013 | 08:17 AM
  #5  
Tkstoy's Avatar
Tkstoy
Novice
Joined: Jul 2013
Posts: 15
Likes: 0
From: Molino Florida
Default

How is everyone wiring the PBR 4 channel set up or 2 ?
 
Reply
Old Oct 28, 2013 | 08:19 AM
  #6  
UltraNutZ's Avatar
UltraNutZ
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
Default

Originally Posted by Tkstoy
How is everyone wiring the PBR 4 channel set up or 2 ?
you might want to be a little more specific about your question Tkstoy to get an educated answer.

Tell us what you're trying to do and with what equipment and with what bike
 
Reply
Old Oct 31, 2013 | 12:03 AM
  #7  
jefla's Avatar
jefla
Thread Starter
|
Road Master
Joined: Jul 2011
Posts: 1,170
Likes: 14
From: washington dc
Default

Update-ish. Got a BT-454 but have not installed it. Holding off because I've finally hit the wall with the HK headunit. I gotta have bluetooth. Now I'm hu shopping. I'll pick one w/ CD and BT that's totally plug & play and that utilizes all the hand controls, plus avc.
 
Reply
Old Oct 31, 2013 | 04:42 AM
  #8  
GLACIERPEARL's Avatar
GLACIERPEARL
Outstanding HDF Member
Joined: Mar 2009
Posts: 2,930
Likes: 4
From: OHIO......UGH !!
Default

And so it begins.....................go big or go home !!
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tidbit1
Motorcycle Audio-Buy/Sell/Trade
2
Apr 9, 2018 05:50 PM
SFDonovan
Audio Systems
6
Oct 11, 2016 06:19 PM
jefla
Audio Systems
22
Sep 24, 2013 08:41 PM
Rockrivr1
Audio Systems
13
Apr 8, 2013 11:39 PM
shore
Touring Models
209
Feb 28, 2011 01:48 PM




All times are GMT -5. The time now is 01:29 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE