 |
03-07-2009, 08:15 PM
|
#1
|
|
Addict
Join Date: Aug 2006
Location: YYZ / ORD
Posts: 6,483
Car: M5
|
HELP! Trouble with subs/amp on stock HU with HK
Okay so I had my amp and subs wired to my stock HK system and here are my problems:
-bass is amazing when IDLING but begins to get muddy and terrible as soon as I go above 40km/hr, exactly like what happens with my HK 6x9s - they used to distort once the car went faster than 40km/hr. I guess this has to do with the vehicle's speed sensitive volume control adjusting the signal on the fly.
-loud humming sound at idle
My setup:
-LOC from the main stock amp -> RCA to aftermarket amp
-remote turn on from the HK mini-amp (stupid installer)
Why is the signal changing as I drive, just like with the stock HK 6x9s? Is this solely due to the remote turn on trigger from the HK amp, and can be fixed by tapping into the MAIN amp for the trigger?
What is causing the loud humming at idle?
__________________
Imola Red / Imola Red ///M5
E60 SSK, Dice iPod, Illuminated ZHP knob, GT Custom Exhaust, BCR Coilovers
'01 330Ci Titanium Silver on Coral Red
'96 328i Jet Black on Black
|
|
|
|
03-08-2009, 12:02 PM
|
#2
|
|
5th Gear Member
Join Date: Feb 2008
Location: Hamilton
Posts: 1,101
Car: 87 325is OBD I S52
|
usually a loud humming at idle in my experience has been a power wire running near or around the RCA's. As to the speed sensitive volume can you turn it off? I know in GM's you can and that may eliminate the distorting through different speeds.
__________________
1987 325is(Midnight Tuning Tuned OBD I S52  ) - Current Summer Car
2012 Hyundai Veloster Tech- Daily Driver
1985 318i - 1st Car (started it all)
|
|
|
|
03-08-2009, 01:34 PM
|
#3
|
|
Addict
Join Date: Aug 2006
Location: YYZ / ORD
Posts: 6,483
Car: M5
|
You can't turn it off in the E46. I think the HK amp might have some sort of active cross-over system where it's adjusting the sound on the fly. Would this cause the problems I am describing above?
__________________
Imola Red / Imola Red ///M5
E60 SSK, Dice iPod, Illuminated ZHP knob, GT Custom Exhaust, BCR Coilovers
Past:
'01 330Ci Titanium Silver on Coral Red
'96 328i Jet Black on Black
Last edited by dbworld4k; 03-08-2009 at 02:03 PM.
|
|
|
|
|
03-08-2009, 01:48 PM
|
#4
|
|
Eurowerke
Join Date: Aug 2003
Location: Toronto
Posts: 1,878
Car: 1996 328i Cabby
|
buy a new car 
Jay
__________________
|
|
|
|
|
03-09-2009, 03:46 AM
|
#5
|
|
2nd Gear Member
Join Date: May 2008
Location: At home.
Posts: 229
Car: 3 series
|
How about when you rev? is there a power-drop (in bass) when you rev yuor engine? do lights dim when the bass hits hardest? - you may need a capacitor
|
|
|
|
|
03-09-2009, 10:34 AM
|
#6
|
|
Addict
Join Date: Aug 2006
Location: YYZ / ORD
Posts: 6,483
Car: M5
|
Quote:
Originally Posted by Randy
How about when you rev? is there a power-drop (in bass) when you rev yuor engine? do lights dim when the bass hits hardest? - you may need a capacitor
|
None of this happens. I moved the amp last night as I was trying to check the wiring, and somehow that did the trick. I think the wires were all squished up and coming into contact in the amps previous location, everything seems okay now (at idle anyways). I'll see how it is after driving today - hopefully I'm good to go.
__________________
Imola Red / Imola Red ///M5
E60 SSK, Dice iPod, Illuminated ZHP knob, GT Custom Exhaust, BCR Coilovers
Past:
'01 330Ci Titanium Silver on Coral Red
'96 328i Jet Black on Black
|
|
|
|
|
03-09-2009, 11:33 AM
|
#7
|
|
5th Gear Member
Join Date: Feb 2008
Location: Hamilton
Posts: 1,101
Car: 87 325is OBD I S52
|
it was probably just power wires running near/beside the rca's
__________________
1987 325is(Midnight Tuning Tuned OBD I S52 ) - Current Summer Car
2012 Hyundai Veloster Tech- Daily Driver
1985 318i - 1st Car (started it all)
|
|
|
|
|
03-09-2009, 11:58 AM
|
#8
|
|
Classifieds Moderator
Join Date: Apr 2003
Location: T.Dot
Posts: 8,748
Car: e36 m3
|
Quote:
Originally Posted by matty.dc
it was probably just power wires running near/beside the rca's
|
ie, picking up feedback from another wire/source.
What brand of amp? Usually cheaper amp pickup feedback easier than others.
__________________
|
|
|
|
|
03-09-2009, 12:04 PM
|
#9
|
|
Addict
Join Date: Aug 2006
Location: YYZ / ORD
Posts: 6,483
Car: M5
|
It's an incredibly shitty amp.
__________________
Imola Red / Imola Red ///M5
E60 SSK, Dice iPod, Illuminated ZHP knob, GT Custom Exhaust, BCR Coilovers
Past:
'01 330Ci Titanium Silver on Coral Red
'96 328i Jet Black on Black
|
|
|
|
|
03-09-2009, 12:19 PM
|
#10
|
|
5th Gear Member
Join Date: Feb 2008
Location: Hamilton
Posts: 1,101
Car: 87 325is OBD I S52
|
ha ha oh well it does the trick doesnt it?
__________________
1987 325is(Midnight Tuning Tuned OBD I S52 ) - Current Summer Car
2012 Hyundai Veloster Tech- Daily Driver
1985 318i - 1st Car (started it all)
|
|
|
|
| Thread Tools |
|
|
| Display Modes |
Rate This Thread |
 Linear Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
All times are GMT -4. The time now is 01:41 PM.
|
