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kustom collector, replacement speaker suggestions [message #11570] Sun, 09 August 2009 02:01 Go to next message
jibbski is currently offline  jibbski
Messages: 2
Registered: August 2009
Location: champaign IL
Junior Member
hello, i'm new to the site.

i own two kustom 215 cabs. one is newer, rectangle design with shiny ports, the other is older, a slant style 215 with duller ports.

i recently purchased a 315 cabinet, unloaded and am looking for speaker suggestions. i'm probably going to play bass through it and am looking for a good driver. i've considered 3 of the 16 ohm eminence force deltas... or possibly 3 of the guitar warehouse brand fifteens at 16 ohms each. i wouldnt be worried about the impedence, but i like to use an ampeg V4 that won't go below 4 ohms. my other bass amp, a GK1000RB, will take 2 ohm loads. i want versatility, obviously.

so that being said, should i go with a series or parellel wiring configuration? is there anything that anyone else reccomends?

btw, my newer 215 is loaded with eminence force speakers, which i think sound pretty good for bass and or guitar. the other, is loaded with some vintage "rola" speakers, and sounds great with a fender vibro, but low wattage.

thanks, i'd be happy to share any info i can to this site.



Re: kustom collector, replacement speaker suggestions [message #11573 is a reply to message #11570] Sun, 09 August 2009 11:31 Go to previous messageGo to next message
pleat is currently offline  pleat
Messages: 1452
Registered: June 2004
Location: Belding, Mi
Senior Member
First off, welcome to the site. I think one importatnt thing to consider is the impedance over brand. Since you may want to swap or sell a kustom cabinet at some point to get another kustom. I'd go with 16 ohm speakers wired in parallel. So a 3x15 cabinet loaded with 16 ohms will give you a 5.66 ohms and will work great on a K200 or K250 head. Kustom used 16 ohm speakers in just about every guitar and bass cabinet they made. The newer non slant cabinets with the silver thread in the grille cloth used 12 ohm speakers.
By staying around the 4 to 8 ohm cabinet impedance you can run just about any head without fear of the amp heating up and shutting down or blowing the amp.
Amp power rating in wattage varies with the impedance and most modern bass amps have ton's of wattage and even though they state they will run at 2 ohms, I still prefer to stay around 4 ohms. Some manufactureres rate their amps at 2 ohms to inflate the RMS wattage to a big number, but it's still a buyer beware type of information regarding wattage and impedance.
Just my opinion.
Don
Re: kustom collector, replacement speaker suggestions [message #11639 is a reply to message #11570] Tue, 18 August 2009 00:41 Go to previous messageGo to next message
BC
Messages: 583
Registered: March 2000
Location: Kentucky
Senior Member
I used a pair of the warehouse guitar speaker bass 15s in a 2x15 cabinet at the Kustom convention in Chanute in June and they were great. I was amazed with the clarity of the speaker as well as the range. The construction of the driver is also high quality. The Bad news is they just had a price increase and vintage speakers can be bought for the same price. Sorry, I have no experience with the Deltas. BC
Re: kustom collector, replacement speaker suggestions [message #11640 is a reply to message #11639] Tue, 18 August 2009 07:50 Go to previous messageGo to next message
oren hudson is currently offline  oren hudson
Messages: 274
Registered: March 2008
Location: Gastonia, NC
Senior Member
Another welcome to the forum jibbski. If you're interested in putting original speakers in your cab, I may have 3 matched CTS 15s. Two are original to my '68 200 cab and another one that was in another cab. I'd have to look at the 3rd for mfg. date. I'm in the process of upgrading the '68 cab to the optional JBL D140Fs and may consider selling the CTSs that are in it now. Not sure that I'm going to sell yet, but just thought I'd through this possibility out to you. Enjoy your Ks. Cool

[Updated on: Tue, 18 August 2009 07:52]

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Re: kustom collector, replacement speaker suggestions [message #11642 is a reply to message #11640] Tue, 18 August 2009 11:11 Go to previous messageGo to next message
jibbski is currently offline  jibbski
Messages: 2
Registered: August 2009
Location: champaign IL
Junior Member
thank you all for the kind replies.

yeah, i think i'm going with the WHGS Fifteens... and yes, the price increase isn't that awesome... but i've got a pair of the twelves in a homemade cabinet and absolutely love them....

i'm interested in the original replacements, though i'm weary because when i bought the galien kruger i absolutely ROASTED the pair of origional's i had in my newer cab (shiny ports, silver thread).... i like using distortion pedals with my bass, which makes it harder to hear when i'm being bad Embarassed
Re: kustom collector, replacement speaker suggestions [message #11648 is a reply to message #11570] Wed, 19 August 2009 05:54 Go to previous messageGo to next message
stevem is currently offline  stevem
Messages: 4728
Registered: June 2004
Location: NY
Senior Member
Parallel impeadance formula

3 16 ohm drivers.
16 x 16=256
256 divided by (16+16)=8
8 x 16=128
128 divided by(8+16) =5.33 ohms
Re: kustom collector, replacement speaker suggestions [message #11649 is a reply to message #11648] Wed, 19 August 2009 08:50 Go to previous messageGo to next message
Optyk is currently offline  Optyk
Messages: 125
Registered: August 2006
Location: Texas
Senior Member
This is the best two sites I've found online for laymen to calculate impedence/power usage/etc:

http://www.bcae1.com/spkrmlti.htm

and

http://colomar.com/Shavano/spkr_wiring.html

Rod


There's only two kinds of music. . . . blues and zippity doo dah.

[Updated on: Wed, 19 August 2009 08:53]

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Re: kustom collector, replacement speaker suggestions [message #11670 is a reply to message #11648] Sat, 22 August 2009 14:37 Go to previous messageGo to next message
cassent5150 is currently offline  cassent5150
Messages: 341
Registered: August 2009
Senior Member
I have a simplified version of calculateing speaker operating resistance. Well here it goes, Parrellel= speaker ohms divided by # of speakers parrelleled and add the ohms for series connection. Example three drivers in parrellel (16ohm+16ohm+16ohm as the example in question) and (16 being the ohmage of the speakers) 16 divided by 3 = 5.33. Series connection you add the resistance to get a total (16+16+16=48 ohms). So far it has't failed me so correct me if I'm wrong. Thanks STEVE

Steve C
Re: kustom collector, replacement speaker suggestions [message #11671 is a reply to message #11670] Sat, 22 August 2009 14:51 Go to previous message
chicagobill
Messages: 2005
Registered: April 2003
Senior Member
That method will work only when the speakers are all of the same impedance.
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