Hey, I've got a mono amp with a single low level input and I was wondering exactly how to go about running RCA cable from my head unit to it, which has two? (The amp also has a single RCA output, but I think tht doesn't matter for what I want to do with it.) Should I get a Y-splitter and bring the two off the head unit down to one, it seems the most logical thing for me but I don't want to wreck anything (especially since it is my girlfriend's). It's driving a single 10" sub, and I would rather not use the high level inputs on it. I've never hooked up a mono amp before or even really had much experience with one, so any help would be great! Thanks
Replies (4)
swez on 05/25/2006 08:06:19
Yes, a "Y" splitter will work just fine. You'll need 2 females to a single male RCA splitter.
Swez
PS Strange that this amp only has 1 RCA input. What amp make and model is it?
ttocs on 05/25/2006 09:56:43
wait a minute....... Swez read it again. Its a mono amp, it will only have one input.
He has 2 rca outputs on the deck, and one input on the amp. You DO NOT want to use a y-splitter on the decks outputs. Use the rear output on the deck only. Don't forget to run your remote turn on with the rca's
swez on 05/25/2006 12:03:38
Yes, I read it carefully ttocs...
This amp only has one input. The HU has stereo outputs. Hense, using a splitter "Y", we get channels A+B = MONO input to same amp.
Now, if the HU has Front/Rear/Sub outs, or just Front and Rear, use the Sub or Rear outs to this amp. We agree on that one yes?
That's why I asked for the amp make and model #. Most newer sub amps use A+B inputs and automatically sum the channels into a signle channel output. (Integrator circuits)
FYI: Make sure this amp has a Low Pass Fiter. For sub use, set the LPF between 80 -100 Hz. If the amp does not have a LPF already, then you can either use a passive one connected to the sub or an active crossover beteen HU and amp input.
Finally, determine what the HU RCA voltage output is and set the amp gain at 2x that number. (Example: If HU is rated for 2.0 volts, set amp gain at 4.0 volts) If you don't know the HU RCA voltage, give make and model # as we'll look it up for you.
Swez
PS Most low frequency signals are present on both A&B channels. It is rare to find recorded music with lows that are only on 1 channel (A or B) and different low signals on A&B. So, it would be OK to just use 1 RCA output from the HU if you wish. Just tape up the unused male so it does not short out. Are we in sync there ttocs?
chris123 on 05/25/2006 17:35:30
Thanks a lot for the info, I guess I'll just get a splitter and do it that way then, I'm not sure the model number but its a Visonik amp, I can find out later and post it back here if you want. Thats good info for sertting up the amp to, I'll have to tweak mine as well now that I know the proper way! Thaks again!
Replies (4)
swez on 05/25/2006 08:06:19
Yes, a "Y" splitter will work just fine. You'll need 2 females to a single male RCA splitter.
Swez
PS Strange that this amp only has 1 RCA input. What amp make and model is it?
ttocs on 05/25/2006 09:56:43
wait a minute....... Swez read it again. Its a mono amp, it will only have one input.
He has 2 rca outputs on the deck, and one input on the amp. You DO NOT want to use a y-splitter on the decks outputs. Use the rear output on the deck only. Don't forget to run your remote turn on with the rca's
swez on 05/25/2006 12:03:38
Yes, I read it carefully ttocs...
This amp only has one input. The HU has stereo outputs. Hense, using a splitter "Y", we get channels A+B = MONO input to same amp.
Now, if the HU has Front/Rear/Sub outs, or just Front and Rear, use the Sub or Rear outs to this amp. We agree on that one yes?
That's why I asked for the amp make and model #. Most newer sub amps use A+B inputs and automatically sum the channels into a signle channel output. (Integrator circuits)
FYI: Make sure this amp has a Low Pass Fiter. For sub use, set the LPF between 80 -100 Hz. If the amp does not have a LPF already, then you can either use a passive one connected to the sub or an active crossover beteen HU and amp input.
Finally, determine what the HU RCA voltage output is and set the amp gain at 2x that number. (Example: If HU is rated for 2.0 volts, set amp gain at 4.0 volts) If you don't know the HU RCA voltage, give make and model # as we'll look it up for you.
Swez
PS Most low frequency signals are present on both A&B channels. It is rare to find recorded music with lows that are only on 1 channel (A or B) and different low signals on A&B. So, it would be OK to just use 1 RCA output from the HU if you wish. Just tape up the unused male so it does not short out. Are we in sync there ttocs?
chris123 on 05/25/2006 17:35:30
Thanks a lot for the info, I guess I'll just get a splitter and do it that way then, I'm not sure the model number but its a Visonik amp, I can find out later and post it back here if you want. Thats good info for sertting up the amp to, I'll have to tweak mine as well now that I know the proper way! Thaks again!
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