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Blown preamps! [message #107] Sun, 20 August 2000 14:44 BC Messages: 583 Registered: March 2000 Location: Kentucky Senior Member I played a Blues and Bar-B-Que festival yesterdayy and it cost me a blown channel on my 200. I requested that my 200 with 2x15 CTS be miked as I wanted my sound.....and not what the board was producing. Instead I was plugged into a DI box and on to the amp. The result was nothing.....the amp had been working fine until this connection was made. The sound man in his infinite wisdom wanted to know what was wrong because nothing was wrong with the "box". His stage man started switching the jacks on the box and the next thing is no sound from the amp at all. I unplugged everything and went direct to the other channel and everything is fine. I then TOLD the stage hand that I wanted to be miked as he had blown a channel from the amp and I only had one left! Moral to the story is to be very careful making connections in front of the preamps as they seem to be easily overloaded. Always unplug from the amp before any switching is done. After the amp was miked everything went fine....the band was good ...the Bar-B-que was good....the weather was good....and the audience was great! Now.....does anyone know where on the preamp board I should start looking???? BC! Report message to a moderator

Re: Blown preamps! [message #110 is a reply to message #107] Tue, 29 August 2000 10:52 Anonymous I should know cause I've sure blown enough of em...call Al Forbes..he has repaired mine several times...the fault was always mine... I have taste tested a number of FX rack units thru the years...and on occasion not noted the 20db cut switch or the correct output jack on the rack..or bothered to meter the jack if it wasn't marked...the result was a fried input on my kustom...but the last time I did this was an even bigger surprise.. I was running stereo into my K100 2x10 and my Fender Super Reverb...the amps were not polarized and that was all it took to fry the kustom...now I have pedals and a mulit fx Boss pedal board that I run as well as a Digitec legend rack unit and they have never harmed any of my kustoms...so to me its my fault..and that of your sound man I would guess not knowing what DI product he was using..hate that happened..but like you say..thank goodness Bud made his amps with 2 channels.. Report message to a moderator

Re: Blown preamps! [message #112 is a reply to message #110] Wed, 30 August 2000 23:44   RoyC Messages: 97 Registered: April 2000 Location: East Central Illinois Member Amps not polarized?!? Please elaborate. Pardon my ignorance, but to me, polarization means using a modern "wide/narrow blade" plug on the end of your power cord. Is this your meaning? I a/b all the time and would hate to fry my amp.....RC Report message to a moderator

Re: Blown preamps! [message #115 is a reply to message #107] Fri, 01 September 2000 07:08 Anonymous I spoke with Brad on his blown pre-amp, my suggestion although a little late for Brad, is to replace the original AC mains cord with a grounded 3 prong plug. I convert all my amps with the new style plug and found K Mart has a black 15' appliance cord for $5.69. I also install a line out jack to feed my mixer. I make sure all amps, mixer, and effects are on the same leg of the 220 and keep all my lighting on the other leg. I like to make sure that both my kustoms and myself come home safe. Don Report message to a moderator

Re: Blown preamps! [message #116 is a reply to message #115] Fri, 01 September 2000 08:09   RoyC Messages: 97 Registered: April 2000 Location: East Central Illinois Member Anybody know a good source to obtain the modern replacement 3-prong plug. One that come with the molded-on cord clip? Report message to a moderator

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