Flash radio before or after amp install?
2nd Gear
Joined: Aug 2016
Posts: 6
Likes: 0
From: Delaware
The only thing the 0 amp 4 speaker flash does is enable the rear fader controls. 99.9% of users that I have seen, do not use the fader. You dont need a flash unless you are going to use Harley amps or you want the use of the rear
fader. All you need is line levelers or resistors/signal harness (which are better IMO) check out americanhardbag.com they have alot of info and products there.
Correction, the flash will enable rear fader and activate the rear speaker wire plug inside of the fairing. You dont need to flash if you are just using 2 speakers or your amp has 1 input and 2 outputs. You do want to flash if you are sending the front and rear outputs of the stock HD radio to your amp front and rear inputs. either way, you will need line levelers or resistors to get rid of the harsh Harley eq.
Hope this helps.
fader. All you need is line levelers or resistors/signal harness (which are better IMO) check out americanhardbag.com they have alot of info and products there.
Correction, the flash will enable rear fader and activate the rear speaker wire plug inside of the fairing. You dont need to flash if you are just using 2 speakers or your amp has 1 input and 2 outputs. You do want to flash if you are sending the front and rear outputs of the stock HD radio to your amp front and rear inputs. either way, you will need line levelers or resistors to get rid of the harsh Harley eq.
Hope this helps.
Last edited by kabory; May 28, 2017 at 05:53 PM.
Novice
Joined: Feb 2018
Posts: 17
Likes: 0
From: Los angeles, CA
Finally Got my Flash done today after being refused two previous times due to Harley BS. Had to remove aftermarket lids and put stock back on . stupidity. I hope they got the Ultra flash correct. I did 0 Amp and 4 speaker to avoid my " HU from explosion". As I was told by the tech. what a joke. and Hopefully the next time I do the usb update I hope they don't inadvertedly remove my flash.. I did notice the volume was reduced after flash. I will post an update after I finish the install.
Plan- 2, MX 6.5 Mille pro Hertz in front fairing and 2 st25 hertz tweeter, pushed by Diamond Micro 4v2 Amp. and 4, 6x9 pioneers in rear pushed by Alpine 4 channel. all this will be flatten by DSR1 rockford DSP. I know i didn't need flash with the DSR1 but I just prefer a flash. I want all my functions out the bike I own. RGs 2017. stay tuned..
Plan- 2, MX 6.5 Mille pro Hertz in front fairing and 2 st25 hertz tweeter, pushed by Diamond Micro 4v2 Amp. and 4, 6x9 pioneers in rear pushed by Alpine 4 channel. all this will be flatten by DSR1 rockford DSP. I know i didn't need flash with the DSR1 but I just prefer a flash. I want all my functions out the bike I own. RGs 2017. stay tuned..
Stellar HDF Member
Joined: Apr 2007
Posts: 2,339
Likes: 486
From: Nor Cal
The only thing the 0 amp 4 speaker flash does is enable the rear fader controls. 99.9% of users that I have seen, do not use the fader. You dont need a flash unless you are going to use Harley amps or you want the use of the rear
fader. All you need is line levelers or resistors/signal harness (which are better IMO) check out americanhardbag.com they have alot of info and products there.
Correction, the flash will enable rear fader and activate the rear speaker wire plug inside of the fairing. You dont need to flash if you are just using 2 speakers or your amp has 1 input and 2 outputs. You do want to flash if you are sending the front and rear outputs of the stock HD radio to your amp front and rear inputs. either way, you will need line levelers or resistors to get rid of the harsh Harley eq.
Hope this helps.
fader. All you need is line levelers or resistors/signal harness (which are better IMO) check out americanhardbag.com they have alot of info and products there.
Correction, the flash will enable rear fader and activate the rear speaker wire plug inside of the fairing. You dont need to flash if you are just using 2 speakers or your amp has 1 input and 2 outputs. You do want to flash if you are sending the front and rear outputs of the stock HD radio to your amp front and rear inputs. either way, you will need line levelers or resistors to get rid of the harsh Harley eq.
Hope this helps.
Intermediate
Joined: Mar 2013
Posts: 45
Likes: 0
From: South Africa
The only thing the 0 amp 4 speaker flash does is enable the rear fader controls. 99.9% of users that I have seen, do not use the fader. You dont need a flash unless you are going to use Harley amps or you want the use of the rear
fader. All you need is line levelers or resistors/signal harness (which are better IMO) check out americanhardbag.com they have alot of info and products there.
Correction, the flash will enable rear fader and activate the rear speaker wire plug inside of the fairing. You dont need to flash if you are just using 2 speakers or your amp has 1 input and 2 outputs. You do want to flash if you are sending the front and rear outputs of the stock HD radio to your amp front and rear inputs. either way, you will need line levelers or resistors to get rid of the harsh Harley eq.
Hope this helps.
fader. All you need is line levelers or resistors/signal harness (which are better IMO) check out americanhardbag.com they have alot of info and products there.
Correction, the flash will enable rear fader and activate the rear speaker wire plug inside of the fairing. You dont need to flash if you are just using 2 speakers or your amp has 1 input and 2 outputs. You do want to flash if you are sending the front and rear outputs of the stock HD radio to your amp front and rear inputs. either way, you will need line levelers or resistors to get rid of the harsh Harley eq.
Hope this helps.
I have a standard audio setup on 2014 Ultra Limited with normal four speaker setup. If you just want to add an amp and 4 new speakers I understand you dont have to flash unless you want the fader. Right now I dont care about the fader as I never used it before.
So there is no need for flashing? Just line levelers or resistors as stated here?
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
Originally Posted by Choppie
New to the audio section and went through a few threads about flashing but my head is spinning now.
I have a standard audio setup on 2014 Ultra Limited with normal four speaker setup. If you just want to add an amp and 4 new speakers I understand you dont have to flash unless you want the fader. Right now I dont care about the fader as I never used it before.
So there is no need for flashing? Just line levelers or resistors as stated here?
I have a standard audio setup on 2014 Ultra Limited with normal four speaker setup. If you just want to add an amp and 4 new speakers I understand you dont have to flash unless you want the fader. Right now I dont care about the fader as I never used it before.
So there is no need for flashing? Just line levelers or resistors as stated here?
Stage II
Joined: Jul 2016
Posts: 2
Likes: 0
From: washington
The only thing the 0 amp 4 speaker flash does is enable the rear fader controls. 99.9% of users that I have seen, do not use the fader. You dont need a flash unless you are going to use Harley amps or you want the use of the rear
fader. All you need is line levelers or resistors/signal harness (which are better IMO) check out americanhardbag.com they have alot of info and products there.
Correction, the flash will enable rear fader and activate the rear speaker wire plug inside of the fairing. You dont need to flash if you are just using 2 speakers or your amp has 1 input and 2 outputs. You do want to flash if you are sending the front and rear outputs of the stock HD radio to your amp front and rear inputs. either way, you will need line levelers or resistors to get rid of the harsh Harley eq.
Hope this helps.
fader. All you need is line levelers or resistors/signal harness (which are better IMO) check out americanhardbag.com they have alot of info and products there.
Correction, the flash will enable rear fader and activate the rear speaker wire plug inside of the fairing. You dont need to flash if you are just using 2 speakers or your amp has 1 input and 2 outputs. You do want to flash if you are sending the front and rear outputs of the stock HD radio to your amp front and rear inputs. either way, you will need line levelers or resistors to get rid of the harsh Harley eq.
Hope this helps.
I guess a Line Leveler would be doing the same thing, flattening out the stock Harley EQ
Last edited by dirtyktm; Jun 26, 2021 at 01:19 AM.
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Stellar HDF Member
Joined: Apr 2007
Posts: 2,339
Likes: 486
From: Nor Cal
Sorry this info is incorrect. -- Your flashing to get rid of the Harley installed EQ so you dont blow up your speakers. Harley installs a preloaded EQ for some reason and this will cause distortion and rattle the expensive speakers if you installed a new amp also. - The flash gives you a Flat EQ to match your more powerful amp. If your not installing an amp you can probably leave the stock stereo as is
I guess a Line Leveler would be doing the same thing, flattening out the stock Harley EQ
I guess a Line Leveler would be doing the same thing, flattening out the stock Harley EQ
Tourer
Joined: Jul 2012
Posts: 284
Likes: 12
From: Eugene, Or / Sammamish, WA
this, now that all the new flashes are available, i went with a flatter flash removed the line levelers and have a much better sounding system. I feel the LL were needed when no one knew how to get rid of the stock curve, now that they can its no longer needed, assuming you try a different flash.