Questions About The G Major 1 and JMP-1 FX Loop

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ghosty999

ghosty999

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I've been rebuilding my home rack rig and pulled out an old Lexicon unit to use elsewhere. This left me a 1U rack space for an effects unit so I grabbed a cheap TC Electronics G Major 1 that popped up. I had a poor experience with the G Major 2, which needed a new ribbon cable for the screen after a few months of use + weird freezing. How's the G Major 1 in comparison?

Also... how much "tone suck" does the JMP-1 Preamp's FX loop really apply? I've always run my effects directly after the JMP-1 rather than the effects loop due to advice on here. Is this an old myth or did they really engineer in flawed FX Loop?

Thanks!
 
when I had my JMP-1 I also had the JFX-1; at the time I thought it sounded great; I didn't notice tone suck with the JMP-1 but it never sounded as good as my ADA rig, I had a MP-1 and MQ-1 which were amazing, I kept them, but replaced them with the MP-2 which was my favorite back in the day, just a PITA to program. For effects, I had the lowly but usable Alesis QuadraVerb.


for rack effects, I recommend finding an Eventide Eclipse unless you have the $ for the H9000.
 
when I had my JMP-1 I also had the JFX-1; at the time I thought it sounded great; I didn't notice tone suck with the JMP-1 but it never sounded as good as my ADA rig, I had a MP-1 and MQ-1 which were amazing, I kept them, but replaced them with the MP-2 which was my favorite back in the day, just a PITA to program.
Maybe the loop was designed for the JFX-1? I also enjoy my ADA MP-1, like a hot rodded marshall in a 1U.

"The JMP-1 has an interesting effects loop in that it is parallel at lower settings and series at higher settings. For the loop to work well at lower settings you have to remove all the dry signal from your effects (easy to do with most rack mounted effects)."

Even the voodoo mods guys say not to use it:
http://www.voodooamps.com/home/Modifications/FAQsPages/FAQsMarshallJMP1/tabid/1018/Default.aspx
 
I used to run my G-Major after my JMP-1 into my Strategy 500.
 
Maybe the loop was designed for the JFX-1? I also enjoy my ADA MP-1, like a hot rodded marshall in a 1U.

"The JMP-1 has an interesting effects loop in that it is parallel at lower settings and series at higher settings. For the loop to work well at lower settings you have to remove all the dry signal from your effects (easy to do with most rack mounted effects)."

Even the voodoo mods guys say not to use it:
http://www.voodooamps.com/home/Modifications/FAQsPages/FAQsMarshallJMP1/tabid/1018/Default.aspx
I have been a JMP-1 user for a very long time and it is still (one of) my favorite practice rig(s) since you can have up to 100 different amp presets (channels) where I will take the same preset and adjust the gain or increase the treble or ........

I didn't like the effects loop of the JMP-1 with actual effects in it, however, one variation I found can be useful for a different tone is where you have the effects loop on slightly (choose a number you feel sounds best to you) with nothing in the loop.

I found the JMP-1 works well with a G-Major 2 (JMP-1 into the G-Major then out to the power amp (or amp return)).

Also, try the direct out of the JMP-1 (instead of the outs) into an effects unit for a different JMP-1 amp tones.

I have found switching between each one can give you a different tone when you record :)
 
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