I've been reading around and someone said somewhere that it's best to match the rms from the amp and the subs...
My Kenwood puts out 500rms at 4ohms and 850rms at 2ohms.
I was under the impression one channel meant one set of +/- terminals. Now my amp is a mono amp but has 2 sets of +/- terminals.

So question 1: Never mind the pricing this time... whats a good set of subs to match with my amp? (decent pricing)
Question 2: I'm a little confused when looking at the crutchfield diagrams. When I had subs... they were 4ohm SVC and wiring them to 2ohm looked a little confusing. So lets say i buy two 4ohm SVC subs and i want to wire them to 2ohm's how would that look like on my amp? Would i only be using 1 set of the 2 +/- terminals?

 

Yes, it is best to match sub/amp rms...to get the most out of your subs.

Your 2 sets of +/- are there just for wiring convenience. You could use either of + or - to wire your sub/s.

Here is how you would wire it for a 2ohm with 2 4ohm svc subs:



Use one set of +/- terminals. That way you don't need to run 2 seperated speaker wires to your box.


And for sub selection, that depends on what sound you're looking for and how much space you're willing to sacrifice.

 

Would it be a bad idea to get two subs wired to 2 ohms each and run them both off the same amp.



Basically two of these each to one of the terminals on the amp. Good or bad idea and why.

 

Good or bad idea? Depends on the amp, and if it's one ohm stable or not... Two 4 ohm DVC wired in parallel (wiring them both to the same terminals) will present a one ohm load to the amplifier... If the amp is one ohm stable, then great. If not, it won't work for long like that.

 

Not in parallel... The amp is 2ohm stable... i was just wondering whether or not i should get (2) 4ohm SVC subs and wire them to one (+/-) terminal or buy (2) 4ohm DVC subs and wire them each to 2ohms and each to both (+/-) terminals on the amp.

- Something a little off topic-
Its a class D amp but it seemed to overheat and shut off when my subs worked... could it be the florida weather or is it the amp heating up? What could I do about it? It's a refurb so im not sure the warrenty specs but I was thinking along the lines of what they use in computers... a water tube system that runs cool water throughout. I don't know.

 

Now if i buy two subs... i should add the rms for both (up to 850rms) and i should be good to go if/when i wire them up to 2 ohms. Right?

 

It will make no difference, because the 2 +/- terminals on the amp are wired in parallel inside (it should say in the manual that...double-check to be sure). It's same as 2+3=5 and 3+2=5. You will still need 2 4ohm SVC subs to get a 2ohm load on the amp...or 2ohm DVC subs.

I never had a Kenwood amp, so I can't say why it shut down on you. Although, it could be just wired for 1ohm load or something like that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Trustfall990 &raquo;</TD></TR><TR><TD CLASS="quote">Now if i buy two subs... i should add the rms for both (up to 850rms) and i should be good to go if/when i wire them up to 2 ohms. Right?</TD></TR></TABLE>

Yes. If it happens that the subs you want to get are lets say 400 wrms a piece, or maybe 500, then they will work fine too.

 

Should I be looking at magnet size? I forget where i heard it from but is heavier better?

 

would these be any good?

Boston Acoustics G2124 12" SVC Subwoofers
http://cgi.ebay.com/2-Boston-A...wItem

 

Or this one?

Power Acoustik **** 12"
http://www.poweracoustik.com/p...o.htm

 

I have had a boston G5 for about a year and absolutely love it, heard the boston G1 and was equally impressed.

Given the right box and amp you will NOT be dissapointed with a boston woofer.