Harley Davidson Forums

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

Setting HZ help

Thread Tools
 
Search this Thread
 
Old Sep 14, 2018 | 06:48 PM
Share
  #1  
Ryan42's Avatar
Ryan42
Thread Starter
|
Road Master
Joined: Jan 2015
Posts: 894
Likes: 69
From: Ca
Default Setting HZ help
I have a 2015 street glide and i installed the b52 amp, line leveler and the polk mm652 speakers. I understand how to set the gain and it worked well. How do I adjust the HZ? The speaker manual says they’re 40hz. Do i just turn the **** to 40 and leave it there? I am only running the two fairing speakers. Thanks guys!
 
Reply
0
Old Sep 14, 2018 | 08:01 PM
Share
  #2  
Outkast6991's Avatar
Outkast6991
Road Master
Joined: Aug 2015
Posts: 1,196
Likes: 106
From: Lancaster pa
Default
Originally Posted by Ryan42
I have a 2015 street glide and i installed the b52 amp, line leveler and the polk mm652 speakers. I understand how to set the gain and it worked well. How do I adjust the HZ? The speaker manual says they’re 40hz. Do i just turn the **** to 40 and leave it there? I am only running the two fairing speakers. Thanks guys!
start at 80-90hz and work from there. 40hz isn't gonna happen
 
Reply
0
Old Sep 14, 2018 | 11:41 PM
Share
  #3  
Ryan42's Avatar
Ryan42
Thread Starter
|
Road Master
Joined: Jan 2015
Posts: 894
Likes: 69
From: Ca
Default
Originally Posted by Outkast6991


start at 80-90hz and work from there. 40hz isn't gonna happen
Another question after looking at it.. It goes from 40 to 400 with a dial but no other numbers. Do you just kinda eyeball it?
 
Reply
0
Old Sep 16, 2018 | 11:53 PM
Share
  #4  
Ryan42's Avatar
Ryan42
Thread Starter
|
Road Master
Joined: Jan 2015
Posts: 894
Likes: 69
From: Ca
Default
Any help?
 
Reply
0
Old Sep 17, 2018 | 05:06 AM
Share
  #5  
USAproud's Avatar
USAproud
Road Warrior
Joined: Sep 2017
Posts: 1,401
Likes: 123
From: Sussex, WI
Default
Just eyeball it. You can always tweak it either way while its playing to fine tune it
 
Reply
0
Old Sep 17, 2018 | 07:06 AM
Share
  #6  
SBates08's Avatar
SBates08
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
Default
Originally Posted by Ryan42
Another question after looking at it.. It goes from 40 to 400 with a dial but no other numbers. Do you just kinda eyeball it?
If it starts at 40 and ends at 400, the math says 180 would be in the middle and 90 would be at the 1/4 mark.
 
Reply
0
Old Sep 17, 2018 | 11:46 AM
Share
  #7  
Fullbore55's Avatar
Fullbore55
Grand HDF Member
5 Year Member
Liked
Loved
Top Answer: 1
Joined: Sep 2016
Posts: 3,522
Likes: 3,697
From: South Texas
Default
You mean 220 in middle and 130 at quarter, to add the initial 40 back in.
But that’s if it’s linear scale. Could be log scale.
 
Reply
0

Trending Topics

Old Sep 17, 2018 | 12:09 PM
Share
  #8  
SBates08's Avatar
SBates08
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
Default
Originally Posted by Fullbore55
You mean 220 in middle and 130 at quarter, to add the initial 40 back in.
But that’s if it’s linear scale. Could be log scale.
No I mean 180. If you start at 40 and end at 400 that gives you a total swing of 360hz. So 180 is your middle freq at 12oclock on the dial.
 
Reply
0
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
Old Sep 17, 2018 | 12:16 PM
Share
  #9  
Fullbore55's Avatar
Fullbore55
Grand HDF Member
5 Year Member
Liked
Loved
Top Answer: 1
Joined: Sep 2016
Posts: 3,522
Likes: 3,697
From: South Texas
Default
180 is half way between 40 to 400. But if you’re starting at 40, you need to add 40.
 
Reply
0
Old Sep 17, 2018 | 12:29 PM
Share
  #10  
Outkast6991's Avatar
Outkast6991
Road Master
Joined: Aug 2015
Posts: 1,196
Likes: 106
From: Lancaster pa
Default
Originally Posted by Fullbore55
180 is half way between 40 to 400. But if you’re starting at 40, you need to add 40.
the **** doesn't start at 6 o'clock. It's more like 7-8 o'clock. The 40 is already there if that makes sense.
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 12:11 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