T/S for fu subs?

[kcr357 10+ year member]

Anyone know if they're even available?

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[kcr357 10+ year member]

Got them

FU750 cut out size

15" 13.875

15” sub

Recommended enclosure info:

Sealed ~ 2.0 to 2.5 ft^3

Ported ~ 2.5 to 3.75 ft^3 @ 30 to 32 Hz

FU750-15"

Re: 4.0 Ohm

Fs: 32 Hz

Qms: 2.9

Qes: 0.76

Qts: 0.61

Vas: 81

Le: 4.36 mH

BL: 21.3

SPL: 87 dB

Sd: 856 cm^2

Mms: 321 g

Xmax: 20mm

Power Handling: 750 watts RMS

 

[Jeffdachef 5,000+ posts]

Just hit up the FU audio facebook page, Frank normally answers everything daily

 

[kcr357 10+ year member]

I tried loading the info from him into winisd and there's like 6 inconsistencies, as well as a few of the parameters being nowhere near what's fu lists them as.

Any idea what unit they're using for VAS?

 

[Jeffdachef 5,000+ posts]

I tried loading the info from him into winisd and there's like 6 inconsistencies, as well as a few of the parameters being nowhere near what's fu lists them as. Any idea what unit they're using for VAS?

should be liters. Gotta press tab a lot too so the program auto calculates .

 

[kcr357 10+ year member]

That's the problem, there's an issue with the numbers I got from them. It can't auto calculate because one or more of the measurements aren't right or something. I turned autocalculate off and only entered the info from fu, and it still has half a dozen inconsistencies.

 

[Jeffdachef 5,000+ posts]

That's the problem, there's an issue with the numbers I got from them. It can't auto calculate because one or more of the measurements aren't right or something. I turned autocalculate off and only entered the info from fu, and it still has half a dozen inconsistencies.

I had no issues entering it in, you also cannot enter it straight like that, you have to enter a number in, hit TAB on your keyboard and let the program do its calculations. You cannot enter things in manually and expect it to work.

Here's what i got. Green numbers entered in; Blue numbers are auto calculated after pressing tab,

 

[kcr357 10+ year member]

Ok, I got it. Thx man.

 

[Jeffdachef 5,000+ posts]

the box specs given by FU audio are good for daily loud. For an SQ flat response box, I see a 5 cubic feet box tuned to 28hz.

 

[kcr357 10+ year member]

the box specs given by FU audio are good for daily loud. For an SQ flat response box, I see a 5 cubic feet box tuned to 28hz.

What would you do? The punk I listed to is almost no bass at all, so when I want bass I put on some older dr dre or something with a good bass line. SOmetimes even techno. Just want to get loud more than sq, but that 28hz at 5cu has a hell of a resp. curve, waaay better down low. How many sq in per cu ft for the port? I was trying to stay around 15 per...

 

[CSCStang]

What would you do? The punk I listed to is almost no bass at all, so when I want bass I put on some older dr dre or something with a good bass line. SOmetimes even techno. Just want to get loud more than sq, but that 28hz at 5cu has a hell of a resp. curve, waaay better down low. How many sq in per cu ft for the port? I was trying to stay around 15 per...

At 20mm xmax I'd go higher. 16 would be better imo.

 

[kcr357 10+ year member]

At 20mm xmax I'd go higher. 16 would be better imo.

Ok, will do.

 

[Jeffdachef 5,000+ posts]

What would you do? The punk I listed to is almost no bass at all, so when I want bass I put on some older dr dre or something with a good bass line. SOmetimes even techno. Just want to get loud more than sq, but that 28hz at 5cu has a hell of a resp. curve, waaay better down low. How many sq in per cu ft for the port? I was trying to stay around 15 per...

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[Bomber Z 10+ year member]

I had no issues entering it in, you also cannot enter it straight like that, you have to enter a number in, hit TAB on your keyboard and let the program do its calculations. You cannot enter things in manually and expect it to work.

Here's what i got. Green numbers entered in; Blue numbers are auto calculated after pressing tab,

I had the same problem. It was driving me crazy. Every time I ran the numbers it would give me a message that the numbers was wrong. I checked and rechecked with no change. Now if I can get a chance to try it again I can get this box finished.. Wish I would have seen this sooner. Thanks for the info Jeff.

 

[Boominburban 10+ year member]

I have no problems modeling enclosures for these subs in Termpro ....

I've got a set of these in 3.25-3.50^ft test boxes and they play hard all the way down into the 20's .....they are both tuned in the low to mid 30's ....