Change of sub

[Don Ganso 13]

Currently own 1 Fi BL 15 and I have been looking into competing. I have been doing some reading and a common limitation for the lowest power class in USACI, (1-600watts at 4 ohms? best I could find: stock 1, street beat 1, etc.) is one 12", two 10" or 3 8". Feel free to correct me and my stupidity any time!

If I was looking to compete in said class(es), one 12 seems to be the cheapest route, so here are the options I have found for my budget, (whatever I can get for my BL + less than $100)

1: Used DC level 4 XL, (dual one) for ~ $290 (should I turn into dual 2? is that possible?)

2: Just the motor of the level 4 XL (send it into PSI or something and get it rebuilt?) $225

3: Send BL into Fi and have them turn it into a 12? (it's already fully loaded) $??? (have not answered email)

4: Jacob, (sundownz), was rebuilding T3 TSS subs for a little bit and I talked to him about it. I don't know if he still is, but would this be a viable option? $250

Let me know if you need more info and/or if I am a complete dumbarse.

Thanks

Edited February 28, 2010 by Don Ganso

[KU40 173]

I would definitely get a dual 2 ohm sub, that way you can wire it down to 1 ohm. Reason being that the class is based on amplifier power at 4 ohms, and with an unregulated power supply amp it will put out approximately twice as much power at 1 ohm than 2. That way instead of only having an amp that can do 1200 x 1 @ 2 ohms (or 600 x 1 at 4 ohms), you can get down to 1 ohm and that amp will then do 2400 watts at 1 ohm (same 600 @ 4 ohm power rating).

If you can turn it into a dual 2 depends largely on the motor. You'll just have to ask the reconer. You'll just have to ask about the 15 to 12 size change also. This can be done on many subs, but it obviously also includes changing the basket as well as just the soft parts like a normal recone so it may have an extra charge, not sure.

[Don Ganso 13]

I would definitely get a dual 2 ohm sub, that way you can wire it down to 1 ohm. Reason being that the class is based on amplifier power at 4 ohms, and with an unregulated power supply amp it will put out approximately twice as much power at 1 ohm than 2. That way instead of only having an amp that can do 1200 x 1 @ 2 ohms (or 600 x 1 at 4 ohms), you can get down to 1 ohm and that amp will then do 2400 watts at 1 ohm (same 600 @ 4 ohm power rating).

If you can turn it into a dual 2 depends largely on the motor. You'll just have to ask the reconer. You'll just have to ask about the 15 to 12 size change also. This can be done on many subs, but it obviously also includes changing the basket as well as just the soft parts like a normal recone so it may have an extra charge, not sure.

Ummmm... What amp? Didn't say anything about the amp...

Suppose I should have been more specific about the dual 1 or dual 2 thing. Apparently, the coils are 1.4 (or at least read like that), and I was wondering if it would be safe to run one of the Sundown models, (2000 or 2500 if I got the $), at .7? I am told that they are stable at .5 but it is not covered under warranty...

I guess what I really am asking is if any of these options are "best" for an SPL application. I understand, it is all install dependent, but does anyone have any specific feedback on any of these options? Being the cheap prick that I am, I guess that I would go with whatever costs the least and will easily measure up with these other options.

As far as the recone goes for the Fi, I have sent an email and am waiting on a reply. This was a few days ago, but they are busy people, so in the mean time, does anyone have any idea what the cost might be close to? A close estimate perhaps?

Thanks again

[Don Ganso 13]

Oh, now I see what you are saying KU40: Power output should double as impedance halves for any amp worth its salt.

Sorry about that.