Quote:
Originally Posted by mrray13
Well...
Several amp companies have regulated power supplies, which means they produce the same power regardless of impedance presented by the subs. JL and PG are two off the top of my head. So one cna wire anywhere from 1 ohm to 8ohm, and the amp will provide the same power. Only regulated power supply amps can do this, and the down side is that you can't cheap by wiring below rated resistance and getting more power, if you can supply the voltage.
And yes, if oone wires a sub in parallel or series, and it's a dual coil, quad coil, whatever, the power is split evenly amongst those coils.
|
Quote:
Originally Posted by CamaroSkooter
Rogue, I appreciate the "lesson" but I wasn't asking about impedence. And there are amplifiers that are "rated" for the same wattage regardless of load. Check out Alpine's PDX series amplifiers. Not only do you get the same wattage at the different impedence levels, you can also stack them to save space 
My question was, if you have a set load, do the voice coils each get an equal split of the amplifier wattage regardless of them being in series or in parallel? I believe mrray13 answered that for me though.
Which boils down to, my subwoofers are both dual voice coil subs (four voice coils total). Each voice coil is rated at 500watts max (probably 250watts RMS, they're a much older version, I need to find the paperwork) which means I need an amplifier that can supply 1000watts RMS at whatever impedence I decide to wire them at. |
You need to check the amp specs. Yes this can be done in a way (admittedly I've been out of the game for a while so I didn't even realize these amps were out there), but The Alpine example used puts the same output out at only 2 and 4 ohms, the JL example depending on the amp AND the channel configuration may only go down to 1.5 ohms not bridged or 3 ohms bridged and only as high as 8 if its bridged. Its not as simple as you make it sound, they will not always put out the same power, so as I said at the end of my description, you need to read the amp specs and match your speakers and wiring to it because the amp you want to use may not match what you have. For example Look at the JL HD 900/5 for the front or rear channels it puts out 100wx2 at 4 ohms but only 75wx2 at any lower impedance.
But yes skooter maybe I read your question wrong but no matter how you have it wired they will split the power evenly between coils or subs or whatever. Your last statement is exactly right, you need to find an amp that can provide whatever power you need at whatever impedance the coils are rated for and you wire them at. The amp may be able to handle multiple load ranges but it can't defy the laws of Physics.