I have a head unit that has 3 2v RCA pre-amp outputs. Can I wire them in series to produce one 6v RCA pre-amp output. I'm in school to become an electrical engineer and it makes perfect sense to me, if I'm wrong please explain your reasoning.
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All three outputs will be referenced to the same rail, so the answer is no (Draw it out, you will see that you will just short circuit two of the outputs).
Iff they were transformer isolated balanced lines then this would work (But would be rather pointless), but for rca forget it.
Iff they were transformer isolated balanced lines then this would work (But would be rather pointless), but for rca forget it.
Why would it do that?
You are studying for an EE degree, give me a reasonable mechanism for such an effect....
You are studying for an EE degree, give me a reasonable mechanism for such an effect....
less distortion from gain, and the reason that I thought it would work is because i was thinking of it as 3 2v cells hooked up in a series circuit which would produce a total of 6v, if it wont work then how can i make my 2v output a 4v or 6v output
The gain has to be somewhere (Either in the head or the power amplifier), and the difference between 2V and 4V is only 6dB which is negligable in this context so I really wouldn't sweat it (The power amp can almost certainally be driven to full output by 2V).
Further most power amplifiers have fixed gain preceeded by an attenuator, so adding gain at the front end only helps if you have a interference pickup issue in the wiring or if the power amplifier input stage is massively noisy (unlikley).
Still the usual voltage gain circuits would apply, a transformer (Expensive if you want low distortion at low frequency) or an opamp and a small handful of resistors and caps, whatever.
Talk to your lecturer in analogue design, they should be able to discuss how to do this, as well as why it is probably mostly pointless.
Further most power amplifiers have fixed gain preceeded by an attenuator, so adding gain at the front end only helps if you have a interference pickup issue in the wiring or if the power amplifier input stage is massively noisy (unlikley).
Still the usual voltage gain circuits would apply, a transformer (Expensive if you want low distortion at low frequency) or an opamp and a small handful of resistors and caps, whatever.
Talk to your lecturer in analogue design, they should be able to discuss how to do this, as well as why it is probably mostly pointless.
Thanks, BTW this is my current set-up and I want to know what you think
Head Unit: Pioneer AVH-X2500BT
AMP: Pioneer GM-D9601 (1200w @ 1ohm)
SUBS: 2 12" Pioneer TSW310D4 (DVC Parallel 4ohm)(Final Impedance 1ohm)
Enclosure: Ground Shaker ST
Car: 2003 Mazda6
Head Unit: Pioneer AVH-X2500BT
AMP: Pioneer GM-D9601 (1200w @ 1ohm)
SUBS: 2 12" Pioneer TSW310D4 (DVC Parallel 4ohm)(Final Impedance 1ohm)
Enclosure: Ground Shaker ST
Car: 2003 Mazda6
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