2003ProtegeES

2 e12k
2 jbl 600.1
ported encloser ported to 28hz? (Help me out here blue)

which means no more trunk space for me

hiredgoon

nice choices...but why TWO 600.1's???

Get two dual 2 ohm subs, wire them each in series, then parallel to the amp to get a total 2 ohm load. That way you're getting at least 300 watts RMS to each sub, which is plenty of power IMO (I'm not a bass head btw)

28Hz tuning is a bit low and will actually hurt performance. Plus how much musical info is down there anyways? I say 2 cubic feet each (after port + sub displacement) tuned to around 34 to 38Hz will be perfect.

I'm designing a box that will be 2.185CF (net, for one E12K) tuned to 36.4Hz and (according to WinISD pro) the F3 is down at 31Hz

2003ProtegeES

What dB range will this set up put me in?

Also if i get the subs in dual 2 ohm and wire them in a series then get the jbl 1200 would that almost be the same as having a 600w amp for each sub at 2 ohm?

2003ProtegeES

Will the difference in getting 1 sub rather than 2 subs be extraordinary? Or will it be something that i wont notice?

Opinons please.

hihoslva

You should absolutely notice a difference between two subs vs. one. Especially if you have two subs and twice the power as a one sub setup.

Using two amps, one for each sub - is silly unless you CAN'T get enough power from one amp. But buying TWO 600 watt amps instead of the one 1200 is kinda twisted...sorry.

Remember, don't put the MAX rated power on your subs, use the RMS. If RMS is 600 each, 1200 watts is perfect. Just because a sub is rated to handle 600 watts MAX, for example, does NOT mean you can safely hit it with 600 watts all day long. That's just the max it can take for a brief hit.

~HH

2003ProtegeES

So if i get the e12s in 2 ohm and wire them in a series to a JBL1200,1 would be better for the subs in the long run?

The E subs are rated at 350 i think but i know thats way underrated.

hihoslva

Dude - the JBL is 1200 is too much power for those subs wired that way. If they run at 350 RMS, then that's all you want to feed them. Giving them a constant diet of 600+ watts (either with one amp or two) is going to shred them fast.

I would consider getting subs in the dual 4 ohm version, and wiring them parallel/series to present a total 4 ohm load to the amp. This will cut the power of a JBL 1200 in half, to 600 watts. The JBLs are WIDELY known to be underrrated, and typically put out 1350+ watts @ 1 or 2 ohms. Cut that in half (subs wired to 4 ohms), and you get 350-375 watts per sub - just right.

I still think the JBL is a great idea, and having 1200+ (1350+!) watts available is ghreat for future upgrades. The 1200.1 is a solid amp, and an excellent value. No reason not to buy one - just wire your subs so that you don't shred them with double the power they are rated for.

~HH

2003ProtegeES

Wouldnt wiring in parallel give me a 2 ohm load and wiring in series give me an 8 ohm load?

In that case why should i even be considering a 1200.1? Why not a 600.1 and then wiring a set of 2 ohm subs in a series to get a 4 ohm load and have 300 watts going to each sub?

Or I could get 2 300.1's.

hihoslva

Wiring each SUB (DVC 4 ohm version) in parallel (coils parallel) would give you a 2 ohm load, or series = 8 ohm like you said - but TWO subs would give you a 4 ohm load. If you have each sub wired to 2 ohms, and wire them in series, that'd be 4 ohms. Or, if you had each sub wired to 8 ohms and wired them parallel together, you'd also get 4 ohms total to the amp.

With a 4 ohm load, and two subs, the 1200.1 puts out 600 watts, or 300 to each sub.

I'd only recommend the 1200 because it gives you flexibilty. If you add subs or get higher-power handlig ones in the future, you'll already have more power on tap, and no need to buy another amp.

Again, running your subs from one amp is the best way to go. It's much more cost-effective, plus you won't have TWO amps to adjust and balance. Just MHO.

~HH