GTI series,car woofers. what Pro or home drivers are the smaller drivers based on?

[1audiohack]

Oh yeah?

PM sent.

[maxwedge]

Not for me, I have settled with two GTI1800's in my home main. With room gain and no EQ they easily play flat down to 28-30 Hz and they are WAY tougher than 2245's, we have broken more than one of those by the way, the 1800's still feel, measure and sound as new some six years later.

That room has had 2-2241's, 2-2242's, 2&4 Sub1500's and 2,4&6 2234's and 2,4&6 2235's and the 1800's keep finding their way back as the favorites.

That's a heck of a lot of woofer action there! That must be a pretty large room there.

[Lee in Montreal]

That's a heck of a lot of woofer action there! That must be a pretty large room there.

The more subs, the less each one is stressed.

[Eaulive]

The more subs, the less each one is stressed.

Yup, BTW we picked up another pair of 4530 for a friend of Stéphane on wednesday.
We now have four 4530, two 4520 and two CW 18" subs for the party this summer

[FE3T]

Seems like McKenzie have a aftermarket recone kit for the 1800 GTI.
http://reconekits.com/jbl1800gti.aspx

God news for those with a blown 1800 GTI or for those with a blown 2241 who are lusting for a 1800 GTI (sort of, depending on how close the kit are to an oem kit)

[JBL 4645]

I did a quick web search but there doesn't look to be many of these JBL GTI 1800 speakers around
- I gather its an older model and perhaps out of production?

Doesn’t show up Google shopping looks like a discontinued model? Can’t find any listed on ebayUK ether, nor ebayUSA.

What’s JBL game they make a model then pull it out after year or so??

[Lee in Montreal]

Doesn’t show up Google shopping looks like a discontinued model? Can’t find any listed on ebayUK ether, nor ebayUSA.

What’s JBL game they make a model then pull it out after year or so??

Isn't the 1800GTi a 15 year old product? JBL had a recone kit (C8R1800GTI) 15 years ago. Do they still have one now? If not, basically the dead baskets have probably been sent to the junkyard.

Plenty of 2241 though, which is the same basket. MacKenzie makes a recone kit if one wants to try a recone.

[JBL 4645]

Isn't the 1800GTi a 15 year old product? JBL had a recone kit (C8R1800GTI) 15 years ago. Do they still have one now? If not, basically the dead baskets have probably been sent to the junkyard.

Plenty of 2241 though, which is the same basket. MacKenzie makes a recone kit if one wants to try a recone.

It is? I was looking around over and hour and ago and found thread on different site going back to 2009 and thought to myself it must be 2000’s model didn’t know it went back as far as late 1990’s.

No thanks I don’t want to rip my sub apart yet

While looking around most JBL car Hi-Fi stuff goes down to 18Hz but the upper portion is limited to 400 or 450Hz on some models JBL W12GTi not bad if used up to 450Hz then have smaller high powered JBL to handle below the range and use crossover and so on make 4 way or 5 way 5 way would be too costly with active crossovers and amps.

[Lee in Montreal]

I am surprised that the 1800Gti and 1500Gti have high Fs values of 30Hz and 35Hz respectively. I would have expected at least 5Hz lower. Basically, an old and venerable 2225h could almost pass as car sub with the room gain...

I just bought an 1800gti for the sake of comparing it with my 2245.
I wonder what a set of 1500Gti would do in a 4520 scoop. The 4520 is tuned to 35Hz, which is where the 1500Gti resonates at. Basically, I suspect it has more meat from 30 to 50Hz than the 2225, and that it would help compensate for the 60-100Hz peak of the 4520. The small compression chamber can probably help in term of power handling too... Hmmmmm

[Eaulive]

I am surprised that the 1800Gti and 1500Gti have high Fs values of 30Hz and 35Hz respectively. I would have expected at least 5Hz lower. Basically, an old and venerable 2225h could almost pass as car sub with the room gain...

I just bought an 1800gti for the sake of comparing it with my 2245.
I wonder what a set of 1500Gti would do in a 4520 scoop. The 4520 is tuned to 35Hz, which is where the 1500Gti resonates at. Basically, I suspect it has more meat from 30 to 50Hz than the 2225, and that it would help compensate for the 60-100Hz peak of the 4520. The small compression chamber can probably help in term of power handling too... Hmmmmm

I think it won't fit physically... too deep.

[Lee in Montreal]

I think it won't fit physically... too deep.

1800Gti and 1500Gti are based respectively on the 2241 and 2226 baskets. Therefore they should fit. It is the later subs that have insane depth. And I mean insane.

1500gti


W15gti

[subwoof]

The "scoops" are not tuned to any frequency.

The single and double just roll off at different rates and just about any driver would energize them to astounding output. Even the thin 2220/130 cones work quite well.

*if* you were worried about extreme excursion damage then maybe the 1500GTI would work well but the cone is VERY thick and therefore heavy / less efficient than the 2226.

sub

[Eaulive]

1800Gti and 1500Gti are based respectively on the 2241 and 2226 baskets. Therefore they should fit. It is the later subs that have insane depth. And I mean insane.

Ok, you're right then, I was thinking about the latter.
Even the neodymium dual VC 2265H used in newer SR products won't fit. I checked

[Dr.db]

Great discussion""

I own a pair of GTI-800`s for caraudio-use. They really are great. But at home-use just a nice midbass....
Couple years ago I owned a GTI-1000 which I ran at home in a 50liter bassreflex cabinet. That actually worked quiet well.

Is there an equant to the GTI-1000 in home or pro Serie`s ??

[pos]

Couple years ago I owned a GTI-1000 which I ran at home in a 50liter bassreflex cabinet. That actually worked quiet well.

Would you mind sharing some details about that speaker?
I have a friend that just bought a pair of GTI-1000 he plans to use with an econowave top end (selenium + PT waveguide)