| Put Bass Speakers in 2-12G Cabinet? [message #4395] |
Sat, 26 June 2004 11:39  |
daddyplaysbass
Messages: 17
Registered: June 2004
Location: Arizona
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Junior Member |
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I recently bought a Kustom K150-2 amp, with a 2-12G speaker cabinet, gorgous blue sparkle. I have been looking for a bass combo amp, but no luck. Anyway, I'm just a bass player and am thinking of replacing the 2 speakers with 2 Carvins or Eminance. It appears the amp says output is 8 ohms. Do you know if the 2X12 guitar cabinet and 2X12 bass cabinet are the same dimensions? I can't seem to find that info on any Kustom page. My cab is 18W, 28-1/4 H and 13 D. Any help will be appreciated (serial #'s are 94173 - amp and S50506 - cab, so next I'll track down the age).
Thanks
Just Give Me the Key, and Let Me Be!! Daddy Plays Bass!!!
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| Re: Put Bass Speakers in 2-12G Cabinet? [message #4398 is a reply to message #4396] |
Sun, 27 June 2004 17:42  |
daddyplaysbass
Messages: 17
Registered: June 2004
Location: Arizona
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Junior Member |
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Thanks Pleat
My plan is to replace the 2 12" guitar speakers with 2 12" Karvin or Eminance bass speakers. I figure this will make it essentially a 1972 or so Kustom bass cabinet. I plan on using my Kustom for gigging. I currently use a 1977 Karvin 125 watt head with 2 15" cabinet. I figured I could equalize in more bass if I want but have wanted to try a punchier sound (I play in an Elvis tribute band)
Thanks
Daddy
Just Give Me the Key, and Let Me Be!! Daddy Plays Bass!!!
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| Re: Put Bass Speakers in 2-12G Cabinet? [message #4911 is a reply to message #4395] |
Fri, 01 October 2004 19:11 |
daddyplaysbass
Messages: 17
Registered: June 2004
Location: Arizona
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Junior Member |
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Well I did it, I got the Eminance 12" drivers Deb suggested and have my Kustom bass sound just like I remembered. I would have gotten the Carvin but ran into the ohmage problem. I really like Carvin equipment from past experience and still use my 1977 125w head with 2X15 (original) speaker cabinet. The Kustom 12" guitar speakers in the cab were fine; I removed them and have them boxed up. Thanks Deb and if anyone needs to play bass thru the 2X12 guitar cab; it works fine. I play in an Elvis tribute band sot the looks and sound are just right. I may need more power in the future so am looking into a 250 head. There again, I guess the ohms will be an issue.
Just Give Me the Key, and Let Me Be!! Daddy Plays Bass!!!
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| Re: Put Bass Speakers in 2-12G Cabinet? [message #4930 is a reply to message #4395] |
Thu, 07 October 2004 12:56 |
stevem
Messages: 4773
Registered: June 2004
Location: NY
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Senior Member |
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Hi,we have gone over this delema many times here so let me recap.If you need more power, you need to move more air.And the best way to do that(although not easy to move around) is with more or larger speakers, more speakers being best.Going from a 50 watt amp to a 100 watt amp will only give you twice as much clean head room before the amp distorts, you will notice little improvment in volume,or acoustic watts as the ear sences. To get a doubling of acoustic watts by means of amp made wattage you would have to increase the amps wattage output by some 5!! times to get the same results. If you ever have the chance to play back some prerecored music thru a PA with a grapic eq and output wateage indicators on the power amp(s) try this.Pull dowm all the low bands up to around 200 cycles after you have played back some music and noted the peak output seen, now play back the same music after pulling down the low bands,you will notice a huge reduction in output. So for low bass reproduction you need alot of power eitheir from wattage or from dividing the wattage you have across alot of speakers. And hopefully the speakers are ratted for a high SPL level. A speaker that has a SPL rating of 98 DB will need half the amount of wattage that a speaker rated for 95 DB to reach the same volume level.A Kustom 250 is made to run at 4 ohms to get its 125 watt RMS output, at 8 ohms it will put out 75 watts. You will not hear much of a improvment volume wise over a K100, but the 250s have alot more tone shaping to use. They also produce less preamp distortion due to better power supply regulation then the 200s and 100s. When you use one take it out of the cab and remove the metal top cover so it can vent better, it will live longer.If your PA has subwoffers, than take your amps recording output and bleed it into the board to reinforce you low end.
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| Re: Put Bass Speakers in 2-12G Cabinet? [message #4941 is a reply to message #4395] |
Sat, 09 October 2004 09:01 |
daddyplaysbass
Messages: 17
Registered: June 2004
Location: Arizona
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Junior Member |
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Thanks for the tips; I'm no electronic guy so this all helps. The K100 gives me enough volume and I like the 12" spkrs. I my try to run the Carvin 2X15 bottom some time to see what the "fatter" sound is like.The Carvin amp drives them fine. I do have a couple more questions:
1. Why is the speaker jack at the bottom of the cabinet rather than on top? I like to run the shortest cables possible. I think next time I have the back off I'll replace it upside down.
2. Does the K100 have the metal panel? I can remove it when I replace the 2-prong power cord with a 3-prong. I should have time to do this as the next show is not until Sat 8-23.
3. The guy who sold me the rig included a 4' blue speaker cable, did Kustom also include matching speaker cables or is it an after-market thing?
Just Give Me the Key, and Let Me Be!! Daddy Plays Bass!!!
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