What do you guys like as a high gain JCM800?

I have:

JVM410H
JCM 900 Model SL-X (with 5881's)
Bogner Helios Eclipse
Engl Artist Edition 100

though I was never going for the 800 sound specifically, I wanted Marshalls with more gain than my 1959x
 
Ceriatone Yeti is one of my favorite modded Marshall types I have owned, I liked it quite a bit more than the Nitro and the JVM I had. I also liked the Silver Jubilee I tried, but they both use diodes so maybe you won’t like them. Still worth a look
 
Ceriatone Yeti is one of my favorite modded Marshall types I have owned, I liked it quite a bit more than the Nitro and the JVM I had. I also liked the Silver Jubilee I tried, but they both use diodes so maybe you won’t like them. Still worth a look

Good point: Marshall 2555x Silver Jubilee. Very versatile and absolute ass-kicker!!!!
 
Yea, I think I like a jcm 800 for a high gain jcm 800... Boost, eq, or overdrive to your desired state.
 
OP, I've been down this road and wasted a lot of money chasing "The Marshall Tone" without buying a Marshall.

If you want Marshall tone, get a Marshall. It really is that simple.

By your description, and if you refuse to use a boost/od pedal, a JVM or modded JCM/JMP is what you're after.
But even those can greatly benefit from having some sort of dirt out front. Dont cut yourself off at the knees.
Some sort of dirt/boost in front of any amp is just plain fun! 😁

Marshalls have been around for decades.
Any given brand can have issues and/or duds. But should something go wrong with, say a JVM or JCM/JMP, they've been around for so long, any amp tech worth his/her salt should have you fixed up rather quickly.
 
Best option (or personal preference if you will) : Bogner Helios
Alternatively (and given the market pricing you can have it for a song) : Marshalll TSL100 does JCM800 100% accurate
 
3rd Power makes some great Marshall variants. I have the Kitchen Sink and I get great Marshall-esque tones. The gain channel was based more on a Plexi circuit but it behaves in a way like a Swiss Army knife for Marshall tones. Try one out if you can.
 
Wow, when I woke up this morning, I wasn't expecting so many replies. I know this topic probably gets brought up a lot, but I appreciate it.

Some of you have suggested just go back to Marshall -- I may consider a JVM 50 watt. It's just the build quality of Marshall that makes me nervous. I did own a DSL100 for over a decade and had no issues though. A JVM would also be a lot less expensive than a lot of other brands.

Headfirst -- I really like Jason and his passion for amps. Just impossible to try one of his unless I pay the price of another Friedman.

Splawn - was mainly curious about the Quick Rod 50 watt.
 
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You can also try a JCM2000 DSL with the right boost...Many have been surprised by just how good one of these can sound boosted. Don't let the price fool you.

That's what I did for years. I guess the Mesa Mark Iv made me not want to go back to boosting again since it doesn't need a boost. The DSL does sound really good with an SD-1.
 
Wow, when I woke up this morning, I wasn't expecting so many replies. I know this topic probably gets brought up a lot, but I appreciate it.

Some of you have suggested just go back to Marshall -- I may consider a JVM 50 watt. It's just the build quality of Marshall that makes me nervous. I did own a DSL100 for over a decade and had no issues though. A JVM would also be a lot less expensive than a lot of other brands.

Headfirst -- I really like Jason and his passion for amps. Just impossible to try one of his unless I pay the price of another Friedman.
I recently wrote a long-winded review of the JVM410H here....If your interested. I am very surprised how good it actually is if you have an affinity for that Marshall "thing". And also, my JVM responds very favorably to moderate output humbuckers.
 
Hmmm.

Screenshot 2025-06-12 at 9.22.42 AM.png
 
Honestly what I like most is not changing the kerrang and character of the amp but adding bout 20$ in parts on switches without putting too many holes in the amp. You can chance the response by adding a sweepable NFR resistor to dial down the perceived tightness of the amp, you can add a few bypass caps or resistors to increase gain slightly in the preamp, and you can add a resonance mod. In order to decide what an 800 needs, I think you need to be able to run it where it was meant to be run and that is above 4 on the MV and ideally up to 6 or 7. Then sweep the preamp to taste because you will find that you sometimes have to back off the pre gain to get it tight. Then play with values. I think a good 800 gives you 25% more gain. If I want anymore gain, these days i'd just go with a HOT mod evo or push it with OD or EQ. I think too many of the gain mods make it a diff amp. Great it's chewy now ( Bogner) , its ultra tight ( It's a 5150 with a TS in front) etc etc. If you have the 800 it is because you want that character. To me it would be like rewiring a 5150 to be like a Superlead. I don't get it.
 
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