need help with more than one amp

[blacksonic]

hey I'm new here, and new to system setups. right now i have a pioneer deh-2300 head unit(just 2 RCA jacks), runnin to an alpine mrp-f240 4/3/2 channel. on one channel i have a 10 Dual sub 375W peak(i would have it bridged across 2 channels but the lack of RCA jacks doesnt help), and on another channel i have 2 6 1/2 inch 4 way coaxial speakers 600W peak. Now for the RCA jacks, can i just get 2 splitters and plug that into my amp?

Also i have 2 alpine sps-570a's 40rms 200wp, I have a pyramid pb-110px 2 channel amp, and a Majestic MA160A 2 channel bridgable amp. now I really haven't the slightest idea what would be the best way to hook all this stuff up, so if anyone would like to let me know the best or easiest way to hook this stuff up and sound good, it'd be much aprieciated.

thanks

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[keep_hope_alive Premium Member]

Yes, get a y-adapter set. female in, dual male out. I will look into your gear next

 

[blacksonic]

So i got the splitters, does that cut the pre-amp output voltage in half from 2.2 to 1.1 for each channel? Because i hooked up the pyramid 240w coming out of my other amp, with both alpine speakers on that. the sub is bridged across the first two channels of the alpine amp, and both 6 1/2 inch 4 way speakers are on their own channel. It all sounds good imo, but its really not that loud. when i had an 8 inch house speaker hooked up to the amp, i couldn't raise the volume past 20. now, i can max it out and still hear my truck running(the exuast is messed up but still...) Im wondering if i should replace the head unit with one that has 4 channels or not. does the pre-amp voltage really affect the volume like that? Im stumped...

 

[outsideshot23 10+ year member]

So i got the splitters, does that cut the pre-amp output voltage in half from 2.2 to 1.1 for each channel? Because i hooked up the pyramid 240w coming out of my other amp, with both alpine speakers on that. the sub is bridged across the first two channels of the alpine amp, and both 6 1/2 inch 4 way speakers are on their own channel. It all sounds good imo, but its really not that loud. when i had an 8 inch house speaker hooked up to the amp, i couldn't raise the volume past 20. now, i can max it out and still hear my truck running(the exuast is messed up but still...) Im wondering if i should replace the head unit with one that has 4 channels or not. does the pre-amp voltage really affect the volume like that? Im stumped...

I have heard it does but i have never had an issue with it as far as output and having to crank my gains up...

 

[keep_hope_alive Premium Member]

It is a parallel connection, voltage is the same for both amps and should remain constant. Current is double and input impedance is half. The latter affects the voltage gain so you get a slightly lower voltage, but not half. 2V might drop to 1.9V. Voltage gain is the ratio of input impedance to output impedance. That is why amps have high input impedance and head units have low output impedance.