slight audio problem

HAIGHIE · 25-09-2011, 05:25 PM

ok so got a new alpine F-30 4 channel
i put it in today all works good and really clear only problem is i can't turn it up loud. well i can but it's as if it gose in to a safty mode, sub still works just not sound out of the speakers, other then that everything else is good, i can lisen to it at a medium level just can't crank it, any idea's would be great help.
thanks in advance

Clean_Cookie · 25-09-2011, 05:44 PM

sounds like alpine have saved your ears! never heard of that before. try going into the menu/setup (usually by holding a button while turning it on) and see if theres an option to disable it?

LTN000 · 25-09-2011, 06:57 PM

sounds like the amp is clipping.. can you adjust the gain on the amp? if so turn it down a little and tue it with your head unit

Ben · 25-09-2011, 08:29 PM

Adjust the amp settings, just crank the gain up slowly and it should be alright. If not check your headuntit settings.. the HPF might be on a ridiculous level.

HAIGHIE · 26-09-2011, 11:58 AM

Hey i've got the gain on the amp at normal! Well thats whats printed on the ampand the it gose up from there or i can go down but it's quieter then not having the amp, i chaneges the high pass filter on the head deck and not real diffeance still cuts off.

Clean_Cookie · 26-09-2011, 03:02 PM

Could it be voltage related? Try disconnecting the sub amp and see what happens. Or grab a multimeter and check voltage under load.

phunkdust · 26-09-2011, 10:30 PM

Being an alpine it'll cut out in an overcurrent situation - you could be running a load with too low an impedance (or dodgy wiring could be causing the same effect) - if it thinks it's sinking too much power into it's outputs it'll go into protect mode. Could also be insufficient power supply to the amp, or you've introduced DC into the line inputs somehow.

SLY 323 · 30-09-2011, 01:44 PM

Check that none of the speakers have gone open circuit and if you have splits that the crossovers arnt having an issue as this can cause problems of that nature.

Clipping does sound like a more realistic answer to your problem though.

Drift Thorpey · 30-09-2011, 03:33 PM

Haigh, can you give us more info as to what the amp is powering?

It can be anything ranging from incorrect settings, to poor wiring or a poor connection at one of the terminals. Can you tell us what guage power wire you are running to your amp, what ohm resistance your speakers run, and the WRMS they are rated for?

This will assist us in finding the msot likely issue to your amp turning itself into safety mode.

Thanks buddy

HAIGHIE · 04-10-2011, 12:24 PM

Hey drift thorpy, i've got 8 guage power cable running to the amp as well as the earth, umm the amp is a 300W rms so it'll like 70 rms to each channel, i've got alpine type S splits in the rear doors and componets in the front( so with the seperate tweeders) both front and rear are 6 1/2 inch speakers, and there reated 75 rms and run on 4ohm i'm pretty sure i'll dubblemcheck when i get home from work, the the amp is designed for these speakers by alpine. My hole system is alpine. I did take it to ( O.F.E ) and he tested all my speakers checked how i ran all the cabling and said it's all good and he tuned the system for me but still happening he said it could be power supply so i bourght an optima yellow top, and still happening i've changed the battery terminals so the can acomodate the power cables and i've run and extra body to earth cable tothe battery in 4 guage, so i'm stumped. I tbink it was 14 guage i put from the amp to speakers. If you wanna know anymore details, nust ask and i'll get them up for ya
Again thanks in advance..

SLY 323 · 04-10-2011, 06:18 PM

Quote:

Originally Posted by HAIGHIE

Hey drift thorpy, i've got 8 guage power cable running to the amp as well as the earth, umm the amp is a 300W rms so it'll like 70 rms to each channel, i've got alpine type S splits in the rear doors and componets in the front( so with the seperate tweeders) both front and rear are 6 1/2 inch speakers, and there reated 75 rms and run on 4ohm i'm pretty sure i'll dubblemcheck when i get home from work, the the amp is designed for these speakers by alpine. My hole system is alpine. I did take it to ( O.F.E ) and he tested all my speakers checked how i ran all the cabling and said it's all good and he tuned the system for me but still happening he said it could be power supply so i bourght an optima yellow top, and still happening i've changed the battery terminals so the can acomodate the power cables and i've run and extra body to earth cable tothe battery in 4 guage, so i'm stumped. I tbink it was 14 guage i put from the amp to speakers. If you wanna know anymore details, nust ask and i'll get them up for ya
Again thanks in advance..

Bring it to us @ Frankies?
We can try having a look.

If all terminals are all okay, if everything is in phase o.k. It's most likely an amplifier problem.

HAIGHIE · 04-10-2011, 07:44 PM

do you work at frankies?
do use work on alpine?

SLY 323 · 05-10-2011, 05:31 PM

We don't supply Alpine, though we would be able to diagnose the problem, & fix it. Obviously for a fee.

My first bet, if all wires are okay, and tune is good, AMP must be no good.

25-09-2011, 05:25 PM	#1
HAIGHIE Senior Member Join Date: Jun 2010 Location: wollongong Car: 99, BJ 323 astina hatch Posts: 1,506	slight audio problem ok so got a new alpine F-30 4 channel i put it in today all works good and really clear only problem is i can't turn it up loud. well i can but it's as if it gose in to a safty mode, sub still works just not sound out of the speakers, other then that everything else is good, i can lisen to it at a medium level just can't crank it, any idea's would be great help. thanks in advance

25-09-2011, 05:44 PM	#2
Clean_Cookie obsessed-incomplete-broke Join Date: Oct 2008 Location: Brisbane Car: BA Hardtop/Hatch Posts: 5,441	sounds like alpine have saved your ears! never heard of that before. try going into the menu/setup (usually by holding a button while turning it on) and see if theres an option to disable it? __________________ Worklog

26-09-2011, 03:02 PM	#6
Clean_Cookie obsessed-incomplete-broke Join Date: Oct 2008 Location: Brisbane Car: BA Hardtop/Hatch Posts: 5,441	Could it be voltage related? Try disconnecting the sub amp and see what happens. Or grab a multimeter and check voltage under load. __________________ Worklog

30-09-2011, 01:44 PM	#8
SLY 323 Senior Member Join Date: Jul 2010 Location: Wollongong Car: 95' Mazda BA 323 Posts: 747	Check that none of the speakers have gone open circuit and if you have splits that the crossovers arnt having an issue as this can cause problems of that nature. Clipping does sound like a more realistic answer to your problem though. __________________ Too many Mazdas. ♡

05-10-2011, 05:31 PM	#13
SLY 323 Senior Member Join Date: Jul 2010 Location: Wollongong Car: 95' Mazda BA 323 Posts: 747	We don't supply Alpine, though we would be able to diagnose the problem, & fix it. Obviously for a fee. My first bet, if all wires are okay, and tune is good, AMP must be no good. __________________ Too many Mazdas. ♡

25-09-2011, 06:57 PM	#3
LTN000 Junior Member Join Date: Mar 2011 Location: Liverpool Car: 2001 BJ Astina Posts: 207 View Photos By: LTN000	sounds like the amp is clipping.. can you adjust the gain on the amp? if so turn it down a little and tue it with your head unit

25-09-2011, 08:29 PM	#4
Ben Senior Member Join Date: Jun 2011 Location: Sunshine Coast Car: MPS Posts: 1,939	Adjust the amp settings, just crank the gain up slowly and it should be alright. If not check your headuntit settings.. the HPF might be on a ridiculous level.

26-09-2011, 11:58 AM	#5
HAIGHIE Senior Member Join Date: Jun 2010 Location: wollongong Car: 99, BJ 323 astina hatch Posts: 1,506	Hey i've got the gain on the amp at normal! Well thats whats printed on the ampand the it gose up from there or i can go down but it's quieter then not having the amp, i chaneges the high pass filter on the head deck and not real diffeance still cuts off.

26-09-2011, 10:30 PM	#7
phunkdust AstinaGT Regular Join Date: Mar 2010 Location: Melb Car: SP20 Posts: 394	Being an alpine it'll cut out in an overcurrent situation - you could be running a load with too low an impedance (or dodgy wiring could be causing the same effect) - if it thinks it's sinking too much power into it's outputs it'll go into protect mode. Could also be insufficient power supply to the amp, or you've introduced DC into the line inputs somehow.

30-09-2011, 03:33 PM	#9
Drift Thorpey Junior Member Join Date: Aug 2011 Location: Radelaide's WestSide Car: 89 Astina BG DOHC Posts: 172	Haigh, can you give us more info as to what the amp is powering? It can be anything ranging from incorrect settings, to poor wiring or a poor connection at one of the terminals. Can you tell us what guage power wire you are running to your amp, what ohm resistance your speakers run, and the WRMS they are rated for? This will assist us in finding the msot likely issue to your amp turning itself into safety mode. Thanks buddy

04-10-2011, 12:24 PM	#10
HAIGHIE Senior Member Join Date: Jun 2010 Location: wollongong Car: 99, BJ 323 astina hatch Posts: 1,506	Hey drift thorpy, i've got 8 guage power cable running to the amp as well as the earth, umm the amp is a 300W rms so it'll like 70 rms to each channel, i've got alpine type S splits in the rear doors and componets in the front( so with the seperate tweeders) both front and rear are 6 1/2 inch speakers, and there reated 75 rms and run on 4ohm i'm pretty sure i'll dubblemcheck when i get home from work, the the amp is designed for these speakers by alpine. My hole system is alpine. I did take it to ( O.F.E ) and he tested all my speakers checked how i ran all the cabling and said it's all good and he tuned the system for me but still happening he said it could be power supply so i bourght an optima yellow top, and still happening i've changed the battery terminals so the can acomodate the power cables and i've run and extra body to earth cable tothe battery in 4 guage, so i'm stumped. I tbink it was 14 guage i put from the amp to speakers. If you wanna know anymore details, nust ask and i'll get them up for ya Again thanks in advance..

04-10-2011, 07:44 PM	#12
HAIGHIE Senior Member Join Date: Jun 2010 Location: wollongong Car: 99, BJ 323 astina hatch Posts: 1,506	do you work at frankies? do use work on alpine?