Marshall JCM800 2203 reissue - Jemsite
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post #1 of 8 (permalink) Old 02-11-2003, 10:36 PM Thread Starter
 
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Marshall JCM800 2203 reissue

Anyone used one of the JCM800 2203 reissues? Marshall states they are a 'faithful reproduction' of the originals, but in my experience this doesn't always seem to be the case with reissues due to different manufacturing processes/components of the time.

Just wondering if it's worth hunting down an older one, or purchasing new (ignoring price differences - based on tone only).
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post #2 of 8 (permalink) Old 02-13-2003, 01:28 PM
 
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I finally checked one out about a month ago in Sam Ash. It sounded great! I haven't been able to A/B it against an original. Who cares, it sounds great and it's a master volume Marshall with a true bypass FX loop which I've wanted to see for a while.

Mike 777 Haug
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post #3 of 8 (permalink) Old 02-14-2003, 01:11 AM Thread Starter
 
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The lack of effects loop was a concern I had - I wanted to run the marshall preamp through the power amp section of my Boogie DC-10 head, but is this possible without the fx loop (can you send the signal out the JCM speaker outs into the return on the DC-10)?
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post #4 of 8 (permalink) Old 02-14-2003, 01:37 PM
 
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The 2203X DOES have an FX loop. It's "true bypass" which is supposed to be "ignored" by the remaining circuitry when not in use so there is no undesired alteration and coloring of the tone. A lot of people pay extra money to rewire their FX loops as well as their processors to be "true bypass" when they are switched off. It's a big selling point-especially for boutique FX guys.

You could try going from the FX send of it through the return of your Boogie or vice versa. NEVER connect a powered output (speaker out) to a line or mic-level input. The speaker outs always must be connected to a speaker with speaker canbles. Also, never run an amp without being connected to a speaker. So, if you are using an amplifier just for it's preamp, you'll still have to connect it to a speaker load.

Mike 777 Haug
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post #5 of 8 (permalink) Old 02-14-2003, 03:29 PM
 
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Mike is right, your amp must always see a load at the output transformer or it will fry.

One clever option would be to purchase a THD hotplate and use it as an infinite load and a direct box. You can connect your amps output to the THD and operate it at full load without a speaker cabinet. The THD has a line out that is level adjustable that can connect to slave amp or direct to a mixer. It's a pretty neat device.
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post #6 of 8 (permalink) Old 02-15-2003, 01:12 AM Thread Starter
 
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Thanks for the advice. Good point about the speaker load - I somehow forgot about that, if I used the JCM just for the preamp.

THD hotplate - would that bypass the power section of the JCM?

While I'm on the subject of speaker loads - am I in danger of blowing lower powered speakers - ie. 100 watt head, 25 watt greenbacks. Right now I'm only using a 2x12 cab, but I'm concerned I'd need at least a quad to handle the load. Any thoughts?
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post #7 of 8 (permalink) Old 02-15-2003, 10:55 PM
 
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Quad if you want to use lower powered speakers....the cab im getting in a little while, the Genz Benz G-Flex 2x12, comes with 75 watt speakers...and from nearly all accounts I have heard, it sounds like a 4x12. Or you could load higher watt speakers in the cab. If you have reasons for wanting to stickwith a 2x12, there are options out there.
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post #8 of 8 (permalink) Old 02-16-2003, 12:08 AM Thread Starter
 
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The reason I've got a 212 now is just that I picked up an old upright boogie 212 to go with the head. I'll probably grab another 212.

The speakers currently in the cab are a 150w celestion and a 200w EV. The sound is a little fizzy. I've heard the greenbacks and like the breakup when pushed (I'm going for an overdriven preamp, minimal power distortion and lots of speaker distortion). I thought about mixing the EV and a greenback with a resistor wired in there to help the greenback - a clean speaker that won't break up contrasted with the low powered dirty sound.

I've only just started experimenting with this stuff, so I guess I'll have to spend lots and try everything...
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