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aguilar GS112 speaker remplacement

#21
+1 for any of the Neodymium drivers!

A word of caution about the single 12 cabs however... Most, if not all are all based upon the TL design that E-V used to give away. Mesa was the first cab manufacturer I'm aware of to use the 1x12 design... The TL plan includes specs for the cabinet. One of them limits the max input power to 100 watts (probably 200 solid state watts however). Regardless what power the speaker is rated for, the gross internal volume of the cabinet limits power handling to 100 watts due to "continuous thermal limit."

I have been using my TL 1x12 cab for a decade, and have driven the original E-V EVM12L to extinction twice using an Eden WT400. A very clean amp indeed! It was the thermal limit that fried the speaker.

I fried the Eminence DeltaLite 2512 once as well using a mighty 90 watt vintage Traynor YBA1A Bassmaster tube amp... Hot voice coil, and excursion limit reached...

Each time a driver blew, I was using only one 1x12" cab for the gig. Loud enough? You bet! Tone for days too! But susceptible to thermal overload due to small cab size. Better, in most cases, to use two cabs (or a 2x12 version) when matching a loud drummer.
 
#22
tifftunes said:
A word of caution about the single 12 cabs however... Most, if not all are all based upon the TL design that E-V used to give away.
Click to expand...

That's pretty much nonsense. A better statement would be:

Many manufacturers use Thiele-Small parameters to design their enclosures. Electrovoice is one of those many.
 
#23
tifftunes said:
Each time a driver blew, I was using only one 1x12" cab for the gig. Loud enough? You bet! Tone for days too! But susceptible to thermal overload due to small cab size. Better, in most cases, to use two cabs (or a 2x12 version) when matching a loud drummer.
Click to expand...

With the greatest respect Sir, you were not "loud enough" you were too loud for a single speaker. You took them all way over their limits and destroyed them.

I use a 2x10 format. One is great for a reasonable rehearsal. A pair are all I've ever needed at the gig. All four are just a lot of fun. I'd never dream of gigging with just one!

Paul
 
#24
greenboy said:
That's pretty much nonsense. A better statement would be:

Many manufacturers use Thiele-Small parameters to design their enclosures. Electrovoice is one of those many.
Click to expand...

Though the Thiele and Small parameters have been around for quite a while (since the early 70s, IIRC), E-V was the first to utilize them, designed and documented several bass cabinet plans based upon their own drivers. Initially using the TL606Q (4x15) and others, as subs in movie theaters, among other places.

Additionally, the designs Electro-Voice engineered, printed, and made available for the asking, seem to be the foundation for many manufacturers bass cabinets. The hope, according to my source at E-V, was to sell more Electro-Voice drivers for the DIYs to build cabinets with/for, using these "plans" (I received mine in the mail - "snail-mail" - postmarked Jan 31,1989).

Mesa Boogie, and Aguilar utilized these "plans" for their own cabinets nearly "verbatim" (why reinvent the wheel, right?), at least the single 12" designs. Mesa even had their own E-V driver in 'em for a while.

When compared side by side to the TL cab I built, most likely from the same E-V plans, they are nearly identical. Only differences are cosmetics, shape of port(s), which driver, and which hi freq tweeter... And the sound and performance is remarkably similar as well. Indistinguishable to my ear, in fact (with identical drivers in each)!

So in your honor greenie;

"Many manufacturers use Thiele-Small parameters to design their enclosures. Electro-Voice is one of those many." :p:p


Here's TL 12" cab I built in '98:

2009-10-19004.jpg


Here's my 2x12 and 2x15 TL cabs:

OutdoorRigsm.gif


I also use a single 15" that matches these in cosmetics. Ironically, I built them just prior to Mesa Boogie releasing their own set of cabs that look remarkably like mine!!! The hardware supplier warned me that "someone" was already making such cabs, but couldn't tell me who... Only that he was attempting to supply them with the same hardware as myself, for what appeared to be "VERY SIMILAR" designs...

And as posted, I was indeed asking too much from a single driver!!:scowl:
 
#27
Glad I found this thread so easily. Is there a "non-pro" Delta 12A? I blew my Aguilar speaker out of my gs112, and on reccomendation from the local shop replaced with a speaker that says "Delta 12A" on it with no other spec markings. It loaded right in the cab just like the Aggy speaker, but it smelled terrible a blew about 20 min into a rehearsal tonight. Can you fine gents help me out? I was running a bridged Carvin R1000 in a reasonably loud rehearsal, but it wasn't running more than 700w peak. Is there some trick to "warming up" a speaker that I haven't heard of? Could this be a defective speaker? Was the Aggy speaker so much tougher than the replacement that all the other times I ran the cab like this it didn't blow, even though perhaps common sense says it should've? Very frustrated as I am sick and in the middle of a very busy gig month. No time for this kind of thing.
 
#29
I am not sure Dave-there isn't an ohm marking on the speaker or the box. I often run boh cabs, however for this rehearsal I was just usin one cab, which is pretty usual for me.

I looked up the Delta 12A on the Eminence website, and the specs show 8-16ohms. Is there probably two different speakers, or would that be a usual rating for one? I've never swapped out speakers before. During the rehearsal the cab with the new speaker was sounding louder than the stock, but pretty quickly started to smell like burning plastic, which I naively assumed was part of the "breaking in" of a new speaker, then it just flat stopped making noise at all. I pressed on the dust cover after taking it all apart again, and can clearly hear the "crinkle" of a blown speaker.

Thanks for any help!
 
#30
I just put an 8-ohm Deltalite 2512 like others in this Forum have discussed. I picked mine up from Part Express for $130 with free shipping. So far so good. They are only rated for 300W I believe so if you have a big amp, you need to be careful about pushing them too hard.

If you were using the speaker responsiblie, it should not fry as you describe. However, it looks like you have amps that can push a single 12" harder than they should be.

Also there is speaker break in. I have heard suggestions that speaker break in may be a way to loosen up the speaker prior to hitting it hard. But Emminence does not claim break in is needed. I broke in the speaker I just replaced for about 20 hours with a 60Hz 6Vrms signal. I have no idea if it made it better or not.
 
#34
Why are so many players blowing up drivers? I've been gigging since the early 70's and have never blown a speaker. Lucky, maybe, but I dobt it.. pretty easy to tell when a speaker is nearing it's limit........turn down, or better yet, use enough cab for it's intended purpose. Probably better to have more speaker than needed, then to have to replacing drivers. I've played through everything from single 15 to old Traynor 2x15 and a half dozen of homebuilt t/s designs ( EV 70's TL606 and TL806) and currently using a 71 Traynor 2x15 loaded with a pair of eminence ca1504 ( Aggy th350). Just listen to what your cab is telling you and you should be alright. Geeesh
 

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