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1  British Style / JCM 800 2203, 2204, 2550, 2555 / Re: JCM 800 2204 - JMP 2204 QUESTION on: October 15, 2009, 01:41:17 PM
jmp has a warmer and creamier tone and starts overdriving at about 12 o clock (preamp pot)
jcm is harsher and les compressed; it starts overdriving at about 14 o clock
bye
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2  British Style / JCM 800 2203, 2204, 2550, 2555 / Re: JCM 800 2204 - JMP 2204 QUESTION on: August 28, 2009, 08:58:23 AM
both have choke.
Same circuit, different layout
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3  British Style / JCM 800 2203, 2204, 2550, 2555 / JCM 800 2204 - JMP 2204 QUESTION on: August 27, 2009, 04:03:16 PM
Hi
I've noticed that in my 1985 JCM 800 2204 (horizzontal inputs) there are two 10K 1 W res. while in my 1978 JMP 2204 only one (the circuit is the same, one with pcb mounted pots, the other with chasis mounted pots) SEE PICTURE
Why? how does it affect the tone?
Is it a good idea remove it and put a jumper (on jcm 800?)
thank you
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4  British Style / Plexi Lead, Bass, Superlead / Re: modding a 1987 for loudness on: March 07, 2009, 08:39:36 AM
Is not 1987 loud enough?Huh?
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