12w7 vs 13w7 off a 800.1

[-CT- 10+ year member]

Im not too clued up on audio but am learning //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif.

Right guys i have a phoenix gold 800.1 Ti already and im deciding between the two w7's. Ill have to run the 13 @ 1.5ohm so the amp will be pushing more power into it right? The 12 obviously has to run at 3ohms. The enclosure is going to be a sealed fiberglass one into the spare tyre well and im thinking i MIGHT be slightly under the space requirements if i go for the 13.

The main questions i want to ask is:

Will the slightly undersized enclosure for the 13 mean it will still be a better choice than a recommended sized 12? Will the 12 be damaged //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif ? Someone suggested i use 'wadding' if it is undersized //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif .

Will the fact the amp is running at 3 ohms for the 12w7 mean less power and it will perform lesser than the 13?

Just to give you a guys on the crazy prices on this stuff over here. Retail:

12w7 ~ 1200 dollars.

13w7 ~ 1550 dollars.

it was more but prices have droped a little bit in the last few months //content.invisioncic.com/y282845/emoticons/up2something.gif.dd110ecf3ae4b76050d87598f2f8de7c.gif

Click to read more...

 

[Warbleed 10+ year member]

I assume by "wadding" they mean polyester batting. It's cheap and available in just about any store with sewing supplies.

You can run a 13w7 off of that power, yes. It will produce more SPL with it than will the 12w7, you just won't be using it at or near it's full potential, but you won't push either woofer to full output with that amp.

From a musical standpoint, the % of RMS power/excursion used isn't really a big dfeal. Ideally you want to be below xmax for distortion purposes.

 

[chinny 5,000+ posts]

13w7 would be louder in the meter not to the air, u might notice a lil diff but not alot, go with the 13w7

 

[bonesninja 5,000+ posts]

the 13w7 is dual 1.5 ohm so you must run at 3 ohms or .75 ohms.

 

[chubby 10+ year member]

2 w6v2s > any w7 combo in any area, SPL, sq, PRICE, or otherwise.

also, are those prices in euros or american

 

[-CT- 10+ year member]

the 13w7 is dual 1.5 ohm so you must run at 3 ohms or .75 ohms.

i totally missed this fact for some reason i assumed it was dual 3ohm! So really the 13w7 is out of the question since my amp shouldnt be run at 0.75 //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif .

chubby the prices are converted to US dollars. Also the way ive designed my install two subs wont fit into the spare tyre well nicely so one W7 it is.

Im not really aiming for SPL. I prefer to get more quality out of the W7 than just pure loudness.

What would the 13w7 sound quality wise off that amp compared to the 12?. Im asking this because i might upgrade to a 1000.2 or 1200.1 later on (probably when i change cars this winter) so if theres not a big difference ill get the 13 now instead of having to sell the 12 and fork out for a 13.

Thanks for the help guys.

 

[-CT- 10+ year member]

bump... still undecided although am leaning towards the 12.

 

[Warbleed 10+ year member]

Honestly, I doubt the 13w7 with the coils in parallel would really bother that amp very much. I'd wager that just about any 1 ohm stable amplifier can handle that load. If you're actually driving it much at all the nominal impedance is probably going to be at or above 1 ohm anyway.

I'd still get the 13w7. Worst case scenario, it still gets as much power as the 12w7 (if we just wired the coils in series because the amp didn't like the load), and best case scenario, it gets more.

Either way, I don't foresee that driver parallel causing any damage to any competently designed 1 ohm stable amp. Similarly, any 4 ohm stable amp should easily be able to handle a w7 (13w7 included, assuming you wire the coils in series).

 

[-CT- 10+ year member]

i dont know if my amp is 'stable' at one ohms. It says minimum load in the manual as 1ohm. Its a phoenix gold 800.1 Titanium Series amp. (The one with the 3 blue leds //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif). Is it?

 

[ThatDude 10+ year member]

I'm running a Ti 400.2 at 1 ohm a channel, and it barely gets warm. It will go into protect mode at .5 ohms (what the manual says), so .75 is unknown, but I think it should make it, the internals can probably handle it.

 

[limitkid7 5,000+ posts]

2 w6v2s > any w7 combo in any area, SPL, sq, PRICE, or otherwise.
also, are those prices in euros or american

you're so false!!!!!!!

 

[hookdupexpo 10+ year member]

yeah, w6v2's cant touch the w7 in spl...i would take a w6v2 over a w7 for value and sq though. ok, sorry for getting of topic

 

[-CT- 10+ year member]

I'm running a Ti 400.2 at 1 ohm a channel, and it barely gets warm. It will go into protect mode at .5 ohms (what the manual says), so .75 is unknown, but I think it should make it, the internals can probably handle it.

if your sure about this ill definately go the 13w7 route.... at 0.75 ohms how much power you reckon the 800.1 would be feeding it? ~1000?

 

[cjjackson85 5,000+ posts]

i dont know if my amp is 'stable' at one ohms. It says minimum load in the manual as 1ohm. Its a phoenix gold 800.1 Titanium Series amp. (The one with the 3 blue leds //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif). Is it?

It'd be fine w/ impedance rise...

 

[-CT- 10+ year member]

say the amp cant handle it? What could happen? Will it shut itself down before its screwed or am i looking at a new amp and will it affect the sub?