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2X15 verses 2X12 CTS Cab for guitar [message #17673]

Thu, 15 November 2012 14:52

kustomhead
Messages: 121
Registered: April 2012
Location: Redding, Ca

Senior Member

What about the difference between 2X15 and 2X12 CTS bass cabs for use with guitar?

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Re: 2X15 verses 2X12 CTS Cab for guitar [message #17674 is a reply to message #17673]

Thu, 15 November 2012 20:17

Kustom_Bart
Messages: 601
Registered: October 2010
Location: Greenville, MichiGUN

Senior Member

the 2 x 15 is wider and is made for a K200 head and a 2 x 12 cab is shorter and narrower and is the same width as a K100 head. That is what they were both made for and the CTS are the same, I would still rather have Jensens at least for guitar, but the KEI's or CTS's sound good/ I really like the Altec and JBL speakers.

Bart

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Re: 2X15 verses 2X12 CTS Cab for guitar [message #17675 is a reply to message #17674]

Thu, 15 November 2012 23:54

kustomhead
Messages: 121
Registered: April 2012
Location: Redding, Ca

Senior Member

So the K150 head width matches the 70's 2X12 but not the 2X15 that goes with the 150's? The 150 head fits width wise on a K100 2X12 cab?

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Re: 2X15 verses 2X12 CTS Cab for guitar [message #17676 is a reply to message #17675]

Fri, 16 November 2012 00:31

kustomhead
Messages: 121
Registered: April 2012
Location: Redding, Ca

Senior Member

The K150-1&2 are 10 pleats wide and the K150-4 is 12 pleats wide. I just noticed that in the literature section.

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Re: 2X15 verses 2X12 CTS Cab for guitar [message #17677 is a reply to message #17673]

Fri, 16 November 2012 05:35

sunnhead
Messages: 221
Registered: June 2010
Location: Minnesota

Senior Member

You must mean the K250-4, they were bigger amps for the 250 series. The 150 amps only were available K150-1 and K150-2. Also the K150 and K100 series were 8 ohm driven amps. The 150 series 2x12's were 8 ohm cabinets. You should not use a 150 series amp with a 250 series cabinet, the 250 series cabinets were 4 ohm.

-Steve

[Updated on: Fri, 16 November 2012 05:35]

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Re: 2X15 verses 2X12 CTS Cab for guitar [message #17678 is a reply to message #17673]

Fri, 16 November 2012 07:08

stevem
Messages: 4736
Registered: June 2004
Location: NY

Senior Member

You can use a k100 or metal face K150 with a K200/K250 cabinet, just do not play the amp at more than half volume and all should be well!
If you are giging outside on a really hot day I would place a small fan to blow on the back of the head.
Tech wise what is happening at the lower ohmage(4 load) is the output stage is putting out twice as much current and hence heat at 4 ohms as it would if a 8 ohm load was hook up.

Also the output stage(K150) will only pump out some 35 watts of clean power unlike the 75 watts it could do into 8 ohms.
So basically we are talking half the power and twice the heat load!

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Re: 2X15 verses 2X12 CTS Cab for guitar [message #17679 is a reply to message #17678]

Fri, 16 November 2012 09:20

sunnhead
Messages: 221
Registered: June 2010
Location: Minnesota

Senior Member

Yeah i guess your right there Smile

Just to be safe though make sure you make your ohms safe.. no need to scorch a beautiful tuck and roll masterpiece!

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Re: 2X15 verses 2X12 CTS Cab for guitar [message #17680 is a reply to message #17679]

Fri, 16 November 2012 13:41

kustomhead
Messages: 121
Registered: April 2012
Location: Redding, Ca

Senior Member

Thanks for all the input! I've had every era of vintage Kustom amp and like my K150-2 above all. So for my K150-2 I need a 2 16 ohm speaker (wired in parallel) cab for a total of 8 ohms and with the 75 watt output I'm guessing a K100 2X12 8 ohm cab would handle the K150 power.

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Re: 2X15 verses 2X12 CTS Cab for guitar [message #17683 is a reply to message #17680]

Fri, 16 November 2012 15:06

Kustom_Bart
Messages: 601
Registered: October 2010
Location: Greenville, MichiGUN

Senior Member

You are correct Smile

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