| Speaker Wiring and the Sidewinder. [message #4645] |
Fri, 06 August 2004 16:21  |
Kustom Kustomizer
Messages: 1
Registered: August 2004
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Junior Member |
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Hey all,
Need some speaker advice. I'm using a Sidewinder 1x15". I just built a replica cabinet for it ouf of 9-ply birch. More sturdy and a bit lighter than the original particle board one. I also think it sounds better. The JBL speaker that came with the amp had a problem with the coil. I replaced it with an Eminence Legend 1518 15" speaker. It's an 8ohm speaker like the JBL. I LOVE this speaker. It breaks up easily, but never goes too far with the break-up. Warms up the whole amp. Sounds more crisp and louder. So loud in fact, that at 2 or 3 o'clock on the volume knob, I was overpowering a loud drummer.
So here's what I wanna do...I'd like to build a 4x10 cabinet, wired to a total of 8ohms, and run that cabinet in parallel with the 15" speaker. This would of course be 4 ohms.
There's no impedance guidlines printed on the back panel of the amp. I figure 150 watts is enough to handle one 15 and four 10's, but I don't want to mess up the tone by cutting the ohms down.
Now perhaps the amp is meant to use a 4 ohm speaker anyway, and the guy who sold me the amp just put an 8ohm JBL in it (it wasn't the original JBL).
I realize that, if I had to run it at 8ohms, I could get a 16 ohm 15 and run it in parallel with a 16ohm cab for 8ohms total. But I'd like to keep using the speaker I have. I want to be able to choose to add the 4x10 or not, and I'm hestant about running a 16ohm speaker by itself anyway.
I'm in the precess of sewing new T&R for it. I've got pictures of the whole process. I'll post them on my website when done.
Thanks in advance for the help!
-Jim
P.S., can I change the value of the reverb intensity pot so that less of the reverb signal is mixed in? at 4 o'clock, I have more reverb than I'd ever need.
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| Re: Speaker Wiring and the Sidewinder. [message #4647 is a reply to message #4645] |
Fri, 06 August 2004 22:45  |
pleat
Messages: 1454
Registered: June 2004
Location: Belding, Mi
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Senior Member |
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Jim, the sidewinder and all the SS series amps used a 8 ohm speaker, with the exception of the commander which used a 16 ohm setup. I am quoting this from the kustom repair manual. I wouldn't run the amp with a 4 ohm total load. One thing to keep in mind is a 15" pushes about 225 square inches of air, a 4x10 set up pushes about 450 square inches of air. The easiest way to add a second cabinet is to tap the pre amp signal at the record out jack of the amp if it has one, and add a second power amp for the added 4x10 cabinet. a Kustom mono power amp, such as the lll monitor amp, would work great. It will run at 4 0r 8 ohms and pushes 130 watts at the 4 ohm load. It has a volume control and a 7 band EQ that is switchable, so you can blend the gain of of the second cabinet, so as not to over power the sidewinder. Any power amp will work, a small stereo power amp would work using two of the 10's for each amp. Lot's of way to get the job done without causing the sidewinder to overheat or do damage to it. On the reverb issue, I'll let someone else tackle that one.
Don
P.S. The sidewinder's that came with factory installed JBL's would have the sidewinder logo with JBL below the sidewinder on the logo.
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| Re: Speaker Wiring and the Sidewinder. [message #4657 is a reply to message #4645] |
Mon, 09 August 2004 07:17 |
stevem
Messages: 4754
Registered: June 2004
Location: NY
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Senior Member |
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With your reverb problem I am asuming that your control must be in need of replacing or a cleaning, other wise you would just setting it to a lower number, if I am wrong the safest way for a non-tech person to get less reverb would be to carefully remove one spring from the reverb pan. There are other things that could be wrong also and creating this.1) the reverb control was replaced with the wrong higher value.2) the reverb pan was replaced with the wrong one having the wrong impeadance.The original reverb pan would have a sticker saying made by hammond.
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