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Re: Ohms [message #18861 is a reply to message #18858] |
Wed, 12 June 2013 12:16 |
chicagobill
Messages: 2005 Registered: April 2003
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Senior Member |
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Pleat, the 2X15+siren cabs will not be the same as a 3X15 cab impedance wise. The siren or horns are blocked with the crossover cap so they only show the impedance of the two 15s, so 8 ohms.
All of the original 4X12 square cabs that I have seen were wired with four 16 ohm speaker in parallel for a total load of 4 ohms.
The vertical PA cabs were wired differently. Which type of cab do you have?
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Re: Ohms [message #21499 is a reply to message #18858] |
Tue, 23 September 2014 06:23 |
stevem
Messages: 4772 Registered: June 2004 Location: NY
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Senior Member |
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Let clear something up here about checking the ohms of a cabinet that has a horn, or shirein in it with a ohm meter.
A ohm meter apply's a dC voltage to what it's checking and a DC voltage will not pass thru the horn's crossover cap to read the horn driver, so the end result is you are just gonna read the resistance of the speakers , but the Impedance will still be what that factory sheet calls for if all the drivers are stock and or the drivers have been replaced with matching impedance drivers and than also wired the same!
If you do not have a ohm meter to check your reloaded cabinet and to also save you the pain in the ass of backing out all those screws just get a telescoping mirror and a flash light , load the mirror thru one port and the shine the flash light thru the other and should be able to see how you wired the cabinet!
If you only used the stock wires I do not think you would have been able to wire it any other way but the needed parallel like it came from the factory!
I also like. Pleat posted do not understand why your 200 A head has only one speaker jack, is there a open hole right next to it?
[Updated on: Tue, 23 September 2014 06:34] Report message to a moderator
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Re: Ohms [message #21670 is a reply to message #18858] |
Wed, 08 October 2014 14:05 |
Gavindale
Messages: 14 Registered: January 2010
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Junior Member |
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I honestly believe that I do have the K 200 A-4 amplifier head. I believe this to be true due to the wonderful assistance and information supplied by this forum. I was just not being very observant when I originally posted that the head had only one output on the back. There are two, side by side, and on the other side of the back is the RCA out for line recording. The head in this discussion did not come with the gold sparkle cabs with the siren. These were two separate purchases. I purchased a "Kasino" PA that came with 2 gold sparkle cabs. Both cabs have 2-15" speakers and horns/sirens on the top. Their exteriors are different. One has the Kustom badge and is ported while the other is a "Frankie" cab without external or internal ports. I have never fired up the PA and the cabs yet. I might just try that out this weekend. I feel confident with ohm issues since the 3 pieces have been in use for years in a church. I just hope that I don't have any cap's ready to explode!. I do know that something went bad in my K 200 as it lost most of it's output and defiantly had issues pop up. I don't know how brave I will be in trying to trouble shoot the beast by myself. Time will tell! If you never see another post from me again then assume the worst and figure that there will be a Kustom Amplifier "non-working" on ebay listed by somebody other than me!
Stevem - the outputs on the back are as they should be and the 3-15" speaker cab is just that, 3 - 15" speakers that I wired together after having them reconed. No siren or crossover.
Thank you everyone!
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