Speaker brands used in Kustom combos [message #7158] |
Mon, 10 July 2006 11:27 ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
LesS
Messages: 477 Registered: December 2002
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Here is my estimate on:
Speaker brand used in Kustom combos
..........S.N....Amp Prod Date..Speaker Brand Used
From .. 44800 ..Sept 1969 ....Eminence speakers
To ..... 54000 ..Mar 1970 .....Eminence speakers
From .. 55000 ..Apr 1970 .....CTS speakers (also Jensen on some K150 combos)
To...... 86000 ..June 1972 ...CTS speakers (also Jensen on some K150 combos)
From ..87000 ..July 1972 ....KEI (Kustom-Eminence Integrated)
To ...112000 ..Dec 1973 ....KEI (Kustom-Eminence Integrated)
CTS speaker with hole in center cap like Eminence
Now, check out the ebay ad “Kustom 10 speaker”. They came in a Kustom amp (could be a K100C-8 2x10). They are CTS but the chrome voice coil cap has a hole in the center like Eminence. They are 16 ohms each and are wired in parallel.
The newest of these two is 137 7011 so if you add some time for shipping to Kustom etc they could have been installed in a Kustom amp around SN 52700 say March 15, 1970.
Note that this is around the time that combos transitioned from using Eminence speakers to using CTS.
My guess on what happened here is that possibly CTS was just getting started producing speakers for Kustom and was not using the solid cap yet. Or possibly it was part of a pre-production test.
Another mystery is why these two were 16 ohms wired in parallel, as many of the 2x10's in this time period with both Eminence and CTS had two 8 ohm speakers wired in series.
[Updated on: Tue, 08 August 2006 17:19] Report message to a moderator
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Re: Speaker brands used in Kustom combos [message #7167 is a reply to message #7158] |
Mon, 10 July 2006 13:02 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
rodak
Messages: 515 Registered: October 2001 Location: Georgia
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Carvin's amps in the 1970's came with CTS speakers as an option, and those (at least according the the pictures in their catalogs) all had the hole in the center of the dome.
www.combo-organ.com
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Re: Speaker brands used in Kustom combos [message #7176 is a reply to message #7167] |
Mon, 10 July 2006 22:18 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
LesS
Messages: 477 Registered: December 2002
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Rodak-
You’re right – I checked some catalogs - CTS was offered by Carvin beginning in 1971 and they all had a chrome cap with a center hole.
I never saw a Kustom that had a CTS with a center hole so maybe Kustom only bought the ones with a solid cap from CTS.
Carvin started using CTS in 1971 and Kustom started using CTS I believe approx April 1970 – was CTS just starting out then?
Carvin 1969 ........Jensen and JBL - no CTS
Carvin 1970 ........Jensen and Altec - no CTS
Carvin 1971-74 ....CTS speakers with hole in center cap
(In 1971 I bought a new Carvin L2500 lead amp (110 at 4 and 140 at 2)
It had full protection circuits, so we used to blow up a lot of 4 inch speakers with it for fun– actually smoke is a more accurate term. See, I have changed.)
[Updated on: Mon, 10 July 2006 22:23] Report message to a moderator
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Re: Speaker brands used in Kustom combos [message #7183 is a reply to message #7158] |
Wed, 12 July 2006 10:25 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
oldnavycdr
Messages: 38 Registered: July 2006 Location: Sanford, NC
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My K150 SC 4-10, ser 80816 is loaded with speakers stamped with "Kustom" on the frames. I've not taken the back off to view all the data on them, though. I've been advised that they are CTS (silver dust cover w/o the hole). Could they actually be the KEI's? What a sweet amp, btw.
One other thing about this amp is the color. It looks like the blue but yet it isn't as dark as many blues I've seen, yet it isn't as blue green as some of the cascades I've seen. I wasn't recovered. Perhaps it was that particular family of Naugas that were sacrificed for the greater good?
Old Navy
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Re: Speaker brands used in Kustom combos [message #7187 is a reply to message #7158] |
Thu, 13 July 2006 08:20 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
oldnavycdr
Messages: 38 Registered: July 2006 Location: Sanford, NC
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Actually, it is more blue than green but it is still more of an aqua than blue. This amp was always stored in the cover and despite its age it is nearly perfect so this could be closely representative of the original color.
Thanks again on the speakers. Yes, I can easily make out the 137 XXX on the speaker frames.
Old Navy
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Re: Speaker brands used in Kustom combos [message #7264 is a reply to message #7263] |
Tue, 08 August 2006 17:20 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
LesS
Messages: 477 Registered: December 2002
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Hey, stobber,
Thanks for the information.
I have spent more time with K100 combos - I have less experience with K150 combos.
I updated my chart in the first posting.
I’m still learning – these amps are already 33 to 40 years old, so there is no rush.
What is your serial number? (my guess is 57427, which would be in the first few weeks after Kustom increased the amp size in the combos from K100 to K150)
-Les S
[Updated on: Wed, 09 August 2006 18:43] Report message to a moderator
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Re: Speaker brands used in Kustom combos [message #7290 is a reply to message #7289] |
Thu, 10 August 2006 17:41 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
LesS
Messages: 477 Registered: December 2002
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Your amp (SN 79195) was made about Dec 18, 1971 plus or minus a few weeks, so if these speakers were original, this is an example of Kustom installing speakers that were made over a year and a half earlier. In a typical case, many of the parts in a Kustom will be manufactured 60 to 90 days earlier than the Kustom production date. But there are always exceptions – I have seen pot date codes in an amp that varied by a year from each other.
-Les S
[Updated on: Thu, 10 August 2006 17:44] Report message to a moderator
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Re: Speaker brands used in Kustom combos [message #7292 is a reply to message #7158] |
Fri, 11 August 2006 12:55 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
stevem
Messages: 4772 Registered: June 2004 Location: NY
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I know of things happening as I will explane with other brands, and kustom would be no exception.Heres how it would happen,a 4-10 PA colume or combo amp cabinet is damaged in shipping, it eventuly gets shipped back to the factory and this could take a while, when it shows up the factory is in the middle of a production run and has no time to strip out the cabinet of its speakers, when things cool down they strip out the parts, test them and get them staged for the next production run.Total time elapsed could be just what you have in your amp with the date code spread.At least Kustom never sent out any tinkered with amps like Leo Fender did.He would get a bug up his butt about tryin some circuit change,pull an amp off the assembly line, try the circuit change, some times holding the amp back from being sold for a while, and if he like it send the amp on its way again!Some times this would result in a early made amp being sold after the rest of the whole production run of that model was gone off of the retail stores floor.
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Re: Speaker brands used in Kustom combos [message #24162 is a reply to message #7158] |
Wed, 18 November 2015 14:45 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
QinVA
Messages: 4 Registered: November 2015 Location: VA
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I'm brand new to the forum and was not sure where to post my question. But, since this thread involves speakers, I chose this one.
Have to say the knowledge and expertise of the members of this forum is amazing, as is their willingness to share those.
The following info is offered to give as much detail it may take to make the proper decision.
1968(or pre, purple lamp, speaker cab output jack on back) K100C-8 with the 4x10 speaker set up. I just put it in the shop because it went dead - no sound. Tech said there was a bad ground to the speaker circuit - easy fix, however, one speaker is "open". I never had the back off the cab, but the tech said the speaker wiring had been modded and their were several incorrect splices which he fixed. The sound of the amp never impressed me - sounding cheap, overly trebly, and noisy. Perhaps the "custom" wiring job had it messed up. I'm looking forward to having the sound I've seen/heard on youtube and many Kustom fans speak of!
Through this forum I have been able to verify that the cab had 8 ohm speakers and I got the wiring diagram - illustration #11, thank you.
A lot of speakers used for replacements have been mentioned and discussed, but no one has mentioned what wattage speaker I need to get to replace the non functioning one in this combo. The shop is suggesting an Eminence for $90.00. I looked on line and there are many Eminence 10" 8 ohm speakers, most being much less cost than $90. My cab has the metal cone covers, but I gather the cover off the replacement speaker will have to be glued to the new as none of the available replacements have that feature, and the speakers in the cab are no longer available.
I am confused by all the differing opinions of which speaker is best for a replacement. If I was doing all four, I'd experiment with the advice I've read, but for one. . .
My question is: which replacement will properly replace the speaker that has gone bad? Or, should I get it repaired. Seems that there are members that have made a simple repair to an open speaker and extended its life.
Maybe it's not that important - one speaker out of four won't be noticeable if it does sound different, but I have no way of knowing that - but I bet forum members do!
I appreciate any help that is offered. Thanks in advance.
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Re: Speaker brands used in Kustom combos [message #24166 is a reply to message #24164] |
Fri, 20 November 2015 12:31 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
tito566
Messages: 45 Registered: August 2013
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I have a black cab with 2x12 Jensens and 2x10 CTS. This is not exactly relative to the topic here in this thread but any reason why the two different brands being used in one cab? Was this a common practice with Kustom cabs? Thanks!
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Re: Speaker brands used in Kustom combos [message #24169 is a reply to message #24168] |
Sat, 21 November 2015 08:19 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
tito566
Messages: 45 Registered: August 2013
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Thanks Steve! Very intriguing stuff when you throw Bud Ross's name in there. I do have pictures of the speakers themselves along with the cab's interior and s/n that I could try and post here, if that helps ar all.
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Re: Speaker brands used in Kustom combos [message #24172 is a reply to message #24171] |
Sun, 22 November 2015 12:43 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
Kustom_Bart
Messages: 601 Registered: October 2010 Location: Greenville, MichiGUN
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It is a matter of choice, but the Altec speakers for guitar both the 12" and 15" are really nice for guitar, the JBL's (D-130's) are nice if you take the aluminum voice coil cover off and replace it with a cloth one. The Jensen 12" are very nice for guitar as well. The reason, I believe for the lower wattage is so they would over drive when you crank the amp. The higher the wattage the more power you need to over drive the speaker.
Kustom kind of used whatever they had on hand that is why some would have one speaker at one time and not the other. If they ran out of Jensens, they would use whatever they had on hand. That is how it worked for them over time.
[Updated on: Sun, 22 November 2015 12:45] Report message to a moderator
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Re: Speaker brands used in Kustom combos [message #24211 is a reply to message #24173] |
Tue, 08 December 2015 17:18 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
QinVA
Messages: 4 Registered: November 2015 Location: VA
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Turned out that the speaker was not bad. I got it home from the shop, took the back off, and I immediately saw the braided wire hanging down from the spade connector bracket on the speaker frame. It was the top left speaker, the wire was clearly visible with the cab laying face down on my rug. Makes me wonder if they'd rather install a new speaker than repair the broken wire. I admit it was not an easy repair, but I saved some money and time compared to sending the speaker out to be fixed. I reconnected it and it tested as the others and sounds great. Now, because the amp was not bench tested due to having a bad speaker, and after paying for the repairs, the reverb is not working.
Is there a diagnostic procedure to be followed to test the reverb tank? I already read about testing across the plugs and will do that, what's next?
Thanks again, in advance for the help.
Q
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Re: Speaker brands used in Kustom combos [message #24215 is a reply to message #7158] |
Wed, 09 December 2015 06:59 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) |
stevem
Messages: 4772 Registered: June 2004 Location: NY
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It's rare that a a Kustom reverb driver or recovery circuit goes south so the pan should get you back up and running.
If you turn up the reverb knob and hear a hum come in and get louder than at least the recovery end of the circuit is good.
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