Trotty
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Registered: 22nd Feb 01
Location: Bristol
User status: Offline
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Righty, I've got a JL 500/1 which at the moment is turned quite a way down to allow the subs to bed in a bit. Now, when it comes to cranking the amp up, whats the best recommendation?
In the past I've always followed the following sorta steps:
Reset head unit (flat EQ basically)
Turn head unit 75% up
Adjust gain on amp until subs just begin to reach distortion, then turn gain back a touch.
Would that still be the right way to go about it?
There's a decent bit of info available from JL themselves...
http://www.jlaudio.com/amps/5001.html
http://www.jlaudio.com/amps/pdfs/500_1.pdf
http://www.jlaudio.com/amps/pdfs/500_1_MAN.pdf
Just wondering if anyone else had any bright ideas... 
[Edited on 02-11-2003 by Trotty]
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corb
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Registered: 24th Apr 02
Location: Calgary, Alberta, Canada
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DO A SEARCH
 
Diggidy put it up on here the other day you fool, and you replied about it going in FAQ's!!
And what about the RE(s)?? 
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Trotty
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Registered: 22nd Feb 01
Location: Bristol
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I read that, and I put it in the the tutorials section
I just didn't know if there was any other approachs I could take, that was all
As for the RE kit, kinda had to scale back my ideas a touch. Got too much to pay out for to go as mad as I would have liked. Still, I'm halfway to a very plesent sounding SQ-based setup, and I can't wait to get the front end sorted 
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
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I got a mate to use a oscilliscope to match the gains on my amps....
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Trotty
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Registered: 22nd Feb 01
Location: Bristol
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Hmmn, I must admit I don't know many oscilliscope-owning friends
You think it's worth the effort of tracking one down though?
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
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http://www.bladeice.co.uk/gain.htm
He followed that, but obviously people with a good ear or knack for it would be able to do it without one 
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langey
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Registered: 7th Sep 03
Location: Wigan
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how long did you let them "bed" in?
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Trotty
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Registered: 22nd Feb 01
Location: Bristol
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It's been a week so far with quite a bit of usage (in the car for a fair amount of the day cause of work) and I'm going to leave it another week yet.
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
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i told you mine were left for fookin ages!
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langey
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Registered: 7th Sep 03
Location: Wigan
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well i caned mine yesterday after putting it in, and i have so far today 
think i'll turn the gains down??
but i've had the bass off on the headunit, but subwoofer at +10 out of +15
and the head unit, on 25 out of 35, turned it to 30before and it didnt evan disprot,
[Edited on 02-11-2003 by langey]
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
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mate if you've caned it already, you obviously havent taken my advice, and there isnt a point now as you've probably unstiffened the rubber stupidly.
You could have had a much better sounding and performing sub if you listened.
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corb
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Registered: 24th Apr 02
Location: Calgary, Alberta, Canada
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I spanked the arse of my kickers after about 3 hours, i got impatient. But my Perfects, i ran for about 40 hours before caning them!
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Trotty
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Registered: 22nd Feb 01
Location: Bristol
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That sounds like an Alpine h/u?
Hmmn, they might not distort yet - but it wont do the coils any good getting that much of a battering this early.
Mine is set to Sub at +6, flat EQ and no higher than 19 on the volume.
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langey
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Registered: 7th Sep 03
Location: Wigan
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well a bet they aint evan been caind for a hour yet, coz i only made short journeys, and the gain was only half was up, just past normal.
so no point now? it dont sound fucked.
and austin i listend to all your other advice, it was great  but this part, i just got imatiant and wanted to here it rock.
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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Corb, do u reckon thats why you didnt get the reading u wanted?
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Trotty
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Registered: 22nd Feb 01
Location: Bristol
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This is the problem though, you've gotta get past the impatience It's worth it in the long run...
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langey
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Registered: 7th Sep 03
Location: Wigan
User status: Offline
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so mine is fucked?? lol
and will start to sound shit?
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corb
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Registered: 24th Apr 02
Location: Calgary, Alberta, Canada
User status: Offline
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no, i didnt get the reading i wanted cos you REALLY have to drive these subs to get the performance from them, not give them a half-assed 600 RMS each!
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langey
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Registered: 7th Sep 03
Location: Wigan
User status: Offline
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so lads should i not bother turning my gains down?? and will my sub be fucked??
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Trotty
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Registered: 22nd Feb 01
Location: Bristol
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If they haven't been hammered too much yet then yes, turn those gains down!
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langey
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Registered: 7th Sep 03
Location: Wigan
User status: Offline
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well on the gain it has normal at the top (middle) and i had it set just past that, so i'll turn it down.
but i can still turn my volume up high? with the subwoofer up or have that set at 0?
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Dom
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Registered: 13th Sep 03
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set everything to zero and turn the gains down, below normal. As trotty said, dont listen to it loud either keep it about 15/22 etc And leave it for a week or two...or 72hrs - think that is correct, its what was told to my mate.
btw corb, what sub/amp system you got going?
dom
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
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i had mine going for about 40 hours, 6 hours a day. Had the engine on all the time too
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Dom
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Registered: 13th Sep 03
User status: Offline
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quote:
Originally posted by AustinPXX
i had mine going for about 40 hours, 6 hours a day. Had the engine on all the time too
shit dude lol....must have cost ya a fair bit in fuel 
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langey
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Registered: 7th Sep 03
Location: Wigan
User status: Offline
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lol, sop what cd did u play over and over again? and was u out in the car, or di u just leave it on?
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