Simpe Sub Question

[Dynasty 10+ year member]

I just won a 12" Memphis 15-PR124 sub on ebay. The seller however did not mention if it was SVC or DVC. I was wondering how can I tell which one it is? Also, what will it be running at if it was a SVC or a DVC with a Profile AP100M (http://www.millionbuy.com/prfap1000m.html)? Thanks for your help.

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[regal8r 5,000+ posts]

pr124d's are dual vc's the one that u won is SVC...

 

[Bassphreak 10+ year member]

Profile amps **** bro.....read m reply on CAF.com

 

[Dynasty 10+ year member]

Ok, say it was SVC. What does that mean in terms of amp power?

 

[VereChronicus 10+ year member]

Means that it would match the 4ohm bridged stability of your amplifier, to get full rms power from the amp. If you got the DVC, you would have either 2ohms or 8ohms and neither would work to your satisfaction....I'm predicting. Reasons: If 2ohms, ( two 4ohm voice coils wired together in parallel) the amplifier would not be stable if the outputs were bridged....it would shut off soon of overheating if it didn't go into protect right when you hooked up the sub. That is also if it didn't cook your sub first because of clipping. If 8ohms, ( two 4ohm voice coils wired together in series) the amplifier would only push roughly 60-70% of its capability which would probably not make you a happy camper. If you stuck your sub in a medium sized vented enclosure tuned to about 32Hz or so, you could use the DVC sub wired to 8ohms and still get pretty good output. Sup to you mayng.

 

[Bassphreak 10+ year member]

Well if it is a 4 ohm SVC then that means you need an amp that puts out the subs RMS wattage at 4 ohms.

one 4 ohm SVC wiring diagram

Now....

If you have one 4 ohms DVC you can wire it in series for an 8 ohm load or in parallel for a 2 ohm load.

one 4 ohm DVC wiring diagram

If you were to have one 2 ohm DVC you can wire it in series for 4 ohms or in parallel for 1 ohm.

one 2 ohm DVC wiring diagrams

If you have two 4 ohms DVC subs you can wire in series for 1 ohm or 4 ohms

two 4 ohm DVC wiring diagrams

If you have two 2 ohm DVC subs you can either wire them in parallel for a

0.5 ohm load,wire in series for a 2 ohm load or series parallel for a 4 ohm load.

two 2 ohm DVC wiring diagrams

 

[Dynasty 10+ year member]

How will I be able to tell when I recieve the sub? Can I tell by looking at it? I would hate to hook it up and blow because it has too much power to go it, you know?

 

[Bassphreak 10+ year member]

The sub you won is a 4 ohm SVC.

It's two easy to tell a SVC sub from a DVC sub.

If it's a SVC sub there will only be two terminals to hook up...one - and one +

If it is a DVC sub there will be two sets or pairs of terminals to wire so you will have a set of - and + for each voice coil so a total of four terminals.

As far as if it is 4 ohm or 2 ohm.......I don't know of any sub companies that make a 2 ohm SVC only 2 ohm DVC.

So I will step up and say you have a 4 ohm SVC subwoofer.

So to help you out a little here we go.......

If you have one 4 ohm SVC sub there is only one way to wire it and that is in series to present a 4 ohm load.

Now if you happen to geta second 4 ohm SVC sub then you can fool around a bit and wire in parallel for a 2 ohm load.

So,seeing as you have one 4 ohm SVC sub there is no other option but to wire for a 4 ohm load so you will need an amp that will give the sub it's rated RMS wattage or more at 4 ohms but I would suggest you get a mono amp that is stable down to 2 ohms incase you decide to get a second sub of the same make.