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cabinet with 3-15's [message #21199]

Sun, 17 August 2014 23:53

Iowa Boy
Messages: 767
Registered: June 2014

Senior Member

How were 3-15's cabinets wired..........parallel or series/parallel? Everything that I have read indicates that (3) 16 ohm speakers can't be wired in parallel/series and that you can't get to a 8 ohm cabinet with 3 of them. So are these only usable as a pair on 400 series energizers and on the 200 series only 4 speakers can be use in the 2 cabinets, or one cabinet only with all speakers wired in parallel?

Emenince rep explain answer I was needing ....3 speakers will only work in parallel and can't be wired in series/parallel. Finally see the light now. Can't run all six 15's in a 2oo series amp.

[Updated on: Wed, 20 August 2014 14:43]

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Re: cabinet with 3-15's [message #21240 is a reply to message #21199]

Fri, 22 August 2014 17:25

braud357
Messages: 154
Registered: July 2010
Location: Louisiana

Senior Member

The original design was 3- 16 ohm speakers wired in parallel, giving a 5.2 ohm load. The K200 series amps can only safely drive one of these cabinets.

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Re: cabinet with 3-15's [message #21244 is a reply to message #21199]

Sat, 23 August 2014 06:51

stevem
Messages: 4775
Registered: June 2004
Location: NY

Senior Member

Yes, that was how it was done, 3 16 ohms in parallel.
The 2-15 cabs where 16 ohms in parallel also for a 8 ohm load, this let Kustom offer a model with 2 2-15 cabinets and only then did the K200 amp model output its full 100 watts of clean power with that then 4 ohm load!
It was not until the metal face 250 head that kustom fitted a booster power anp to a speaker cabinet, they than started installing two 8 ohm drivers in the cabinets and at that point you could get a model with two 3-15" cabinets, or two 2-15s one of which had the added power amp!

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Re: cabinet with 3-15's [message #21246 is a reply to message #21199]

Sat, 23 August 2014 12:55

Iowa Boy
Messages: 767
Registered: June 2014

Senior Member

Pretty cleaver those Kustom engineers. Seems like it was kind of a waste with the speakers though since most of the information that I have read indicates that stacking more than 2 speakers one on top of the other is not suggested. Would have made more sense to have stacked 4 speakers side by side in the cabinet. Weight probably was a factor if using 15's I image..........do you get a better bass response by using 15's instead of 12's?

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Re: cabinet with 3-15's [message #21249 is a reply to message #21199]

Sun, 24 August 2014 07:27

stevem
Messages: 4775
Registered: June 2004
Location: NY

Senior Member

To make a long story short, I have played through all different cabinets for Bass and own many 2-15, 3-15 and a 4-10 w/horn cabinet and also have built a cabinet with 2-15s and 2-12s.
That being said, for me a 15 driver is best for the average needed wave propagation for Bass guitar frequencys!
And if you play a 5 string Bass forget about even the best 4-10" cabinet carrying that low B string as it should be!
I also find that the cone response time of a 18" driver is too slow, its boomy, but not punch When I play in the horn band and we do our Tower of Power cover tunes you could blind fold me and I can pick out in 5 notes if you had me playing thru a 18" driver, or a 15 incher!

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Re: cabinet with 3-15's [message #21250 is a reply to message #21199]

Sun, 24 August 2014 10:24

Iowa Boy
Messages: 767
Registered: June 2014

Senior Member

The only thing I have ever played thru were 15's so I didn't know how they compared to 12's. Have heard before that 18's really "boom" as you said but response was off a hair or two.

In negation's with a guy on Ebay over a 400 "stereo" bass amp. He wants 6 bills for it, I'm thinking more like 4, but really think this is the amp I've been looking for. Just bought 2 X 15 cabinet from G Center ($125) that they thought had original speakers in it. Now if I can find one more cabinet...that's a steal, I'll be set for my dream amp. Then its time to upgrade my Peavy bass guitar and get something with a narrower neck and better pick ups. Thinking something along the lines of the Fenders used back in the 60's.....white would be cool.

My 3-15's are good but the Delta's I put in it just don't have the sound I was looking for. Hoping that since this cabinet was designed for guitar and not bass, that the 2-15's will have more of what I'm looking for. I do realize that the speakers aren't broke in yet since I have only had the unit up and running about a month now and only get in an hour or two a night to play them. Hope the "brassy" sound soon diminishes. The two cabinets together with my 400 PA head do make an awesome sight I must say. Intimidates the boys with the suitcase amps!

[Updated on: Sun, 24 August 2014 15:24]

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