Hi everyone,
I just finished installing a two amp (A/D/S & Alpine) system in my car and have sort of a problem. There is about a 1 sec delay between the Alpine mono, sub amp turning on and the ADS unit. This really bugs me because of the booming that goes on until the rest of the system catches up. Is there away for me to add a turn on delay to the Alpine amp so that the two amps start up closer together? Alternatively, I"m also running an electronic crossover (ADS 642csi) that feeds both amps. Can I put a turn on delay on the crossover so that no signals are sent to the amps until they're both fully powered up?
Thanks for your help.
Brian
From my reckoning you shudnt have any 'booming', never happened with any of my setups.
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6* Rockford T2's
6* POWER AMPs
BLACK CORRADO
BAANNGGIINN
Is this an older Alpine amp? Most newer amps have the "soft" turn on features now. You can add a delay to the Alpine amp and when it comes on it shouldn't have the "thump" you hear now.
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'85 Toy
Sorry, I should have been more clear. The Alpine is a current model, and both amps do have a turn on delay. The problem is that the turn on delay on the A/D/S amp is longer than on the Alpine so the bass starts playing about 1 sec before the rest of the music does. It isn't a turn on/off thump problem per se, but rather, a sync-ing issue between the turn on delays of the two amps. I'm trying to find a way to have both amps turn on and start playing at the same time as much as possible.
I thought that I might add some sort of delay to the active crossover so that it would not turn on until both amps are fully powered up. I'm not sure if this would work, so I'm looking for any help or suggestions that might be out there.
Thanks everyone for your help.
Brian
Leave the volume on your head unit all the way down. When you turn everything on, THEN turn the volume on the head up. Problem solved...
OK, so maybe that's not what you wanted to hear, and a bit simplistic, but if you put a TD relay on your crossover to power it on AFTER the amps, you'll likely end up with nasty turn on/turn off thumps. You might just have to live with it, or deal with it using the volume control as suggested above...
One last thought, you could build a TD relay box and put it on your RCAs, so there is no signal to the crossover till a few seconds after the car starts up. A 555 timer would work for that just fine. Radio Shack has (or used to have) a handy little 555 timer IC projects booklet, and if I remember correctly, it has a timer controlled relay circuit. If you can't find that book still in a store
try here for a search I made for some circuits...
My best suggestion for you? Deal with it. I know, not the best, but easier than trying to fix it...
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
I think your making a mountian out of a mole hill. 1sec your worried about 1sec. just turn your vol down until all your amps and x over's are powered up. My 4 ch comes on about a second before my mono it's no big deal.
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Big Dave
speedwayaudio1 wrote:
I think your making a mountian out of a mole hill. 1sec your worried about 1sec. just turn your vol down until all your amps and x over's are powered up. My 4 ch comes on about a second before my mono it's no big deal.
Where have I heard that before?
haemphyst wrote:
Leave the volume on your head unit all the way down. When you turn everything on, THEN turn the volume on the head up. Problem solved...
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."