gapxguy

My setup is currently wired like this...


How many ohms am I currently running? Should I parallel wire it?

gapxguy

Nevermind, I got it.

okiaristo

just to be sure, your at 16 ohms

88supramki

just remember that if you're bridging a 2 channel amp, your amp will see half of your woofer's final impedance. So if you wire your woofers up and they are at 4ohms, when you bridge you amp the amp will see 2ohms

mitsuguy

iTrader: (2)

correct... you really want a single 4 ohm load for a bridged 500a2... RF stuff isn't rated for a single 2 ohm load (although it will do a pair of 2 ohm loads)

PIMPALA-SS

that setup makes the amp put out about 1/2 - 1/4 of its actual power.


you need to series the subs VCs, then parallel them to the amp (bridged)

or

parallel the VCs, and series the subs. (either way, it makes the amp see a 4 ohm mono load, which is what makes that amp run at full power)


or run it at 2 ohm stereo. all of the 3 above options (parallel/series/mono, series/parallel/mono, and parallel/stereo) make the am see the same load, and deliver the same power.

if the subs are in a common chamber box, i recommend mono application. if they have seperate chambers, then stereo is fine.

88supramki

just series them so that their final impedance will be 4ohms before they are connected to the amplifier. Then when you connect them to the amplifier it will see half of that, which will result in 2ohm final impedance at the amplifier.

gapxguy

This is how I currently have it wired...



This is how I should have it wired...



And this Rockford's specs to bridging...



So if I bridge the amp mono, it should give me full power at 4 ohms correct? And this should match with the 4 ohm wiring in the box correct? Let me know what you guys think...

PS - My box is separately chambered.

PIMPALA-SS

yes, and yes

88supramki

yes you'll get full power at 4 ohms...but since you're going to bridge your amp you're not going to be at 4 ohms at the amp any way you wire it.

gapxguy

The 500a2 is rated at 4 ohms mono bridged.

88supramki

this is true.....but when you wire up 2 dual 4 ohm woofers even in series your final impedance is going to be 4 ohms....which when you bridge the amp will result in a 2 ohm final load.

PIMPALA-SS

sorry, but this is wrong.





the amp sees a 2 ohm load.. yes... but 2 ohm across 4 amp rails. the amp will do 2 ohm stereo just fine.


2 ohm stereo = 4 ohm mono. same thing.

88supramki

i believe you are a little mistaken of what i've been saying all this time, might wanna check it again and read my posts. Or if you still think I'm wrong, you can check Ohms law again or some of the other audiophiles here on the board.

PIMPALA-SS

Another silly statement.


thinking that you could blow up woofers from wiring them to a lower than recommended impedance for an amp? lol.



you will be fine. just make sure the amp sees a 4 ohm mono load from the speakers, which is all you can get if you wire them series/parallel, or parallel/series.


this is the EXACT thing that RF recommends on their website, and every manual that comes with amps like that, and subwoofers like the ones you have.