Modded JVM410H

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PDC

PDC

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This guy could make any damn thing sound incredible - but these videos featuring his JVM410H with MM Output trans, MM Choke, Negative Feedback mod, and ‘Plexi’ mod makes me reach for my wallet. I have found a JVM410 available with these exact mods and wonder if I’m chasing smoke. To buy or not to buy???

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Was never a big JVM fan especially the 410 but that does sound good - and yes, the guy has supreme chops and tone.
 
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I had a JVM 210H for years, I had the Plexi mod
negative feedback mod
gain reduction and EQ shift
those mods turned it into a monster
I still like my splawn better, but a Modded JVM can kick some serious ass
and I think it's hilarious that he's wearing a Splawn Tee shirt :)
maybe he's hosing us all and he's actually playing a Splawn :)
 
That sounds damn good. Particularly the first clip. Sounds as good as any high dollar custom build/boutique I've heard on here.
 
I had a JVM and did the NF and Plexi mod and it certainly improved the stock. I’m sure Mm’s would be that much better.
 
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All I hear are the quality transformers doing what they’re supposed to do. Iron has a big impact to tone. MM gets shit on for their prices but they have the market cornered for high gain iron and killer dynamics especially since classicTone left the ring.

I still don’t like the JVM tone though, maybe it’s how it’s recording or dialed in but I like more bark and mids in my high gain sound.
 
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It must be the combination of the mods - especially the MM OT and Choke. The clips I’ve heard of bone stock JVMs - even the Satriani version - have not made me reach for my wallet. I agree, this is a bit smoother than a boosted 800, but that sound on OD-1 in the ‘Amber’ mode is just a ‘play all day’ kind of tone.

The clean ch in ‘Green’ mode is as good a clean as I have heard. For my tastes, this could be a 2-channel amp: clean in Green mode and OD-1 in Amber mode.
 
Negative feedback mod I had done (on a pot so I could set it how I liked it) made a huge difference with mine, it really "opened up"
and brought the sound "forward" if that makes any sense.
I was in a rehearsal and a guy from the room next door heard my amp and came in and said he has a stock one that was driving him nuts and made me a great offer for mine on the spot. So away it went
 
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I don't care, there's other amps to get that tone. That amp just seems cheap with the cheap push buttons directly to the pcb. Too many parts to fail and how many channels does it have...no one needs 12 million modes to make it happen.
 
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Exo-metal said:
I don't care, there's other amps to get that tone. That amp just seems cheap with the cheap push buttons directly to the pcb. Too many parts to fail and how many channels does it have...no one needs 12 million modes to make it happen.
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Can't argue there. I've never wanted a 410H, my OCD would drive me nuts with all the channels/modes. I've had the 205H, and loved OD2 Amber. I only used it, and Red for leads. But even that stripped-down version drove me nuts because it Amber needed a bit of gain, and then you switch to red and it's too much.
 
I would really love to do all the mods in the video to my JVM. You all seem to have knowledge and I am very new to this such as never modded shit ever. What would I need and where could I buy the stuff?
 
All those clips sound killer. Marshall really needs to do an update to the JVM series heads and include all the mod feedback that's out there. I'm pretty certain people would buy that product even at an elevated price point.
 
angelspade said:
All those clips sound killer. Marshall really needs to do an update to the JVM series heads and include all the mod feedback that's out there. I'm pretty certain people would buy that product even at an elevated price point.
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No thanks.

Stop trying to sound like van Halen.

The JVM is a great amp and it sounds like the "mods" just took the balls right the fuck off the amp and now it sounds just like every other van Halen wannabe.

No. Thanks.

JVM needs no updates. Some things are just right when ya known how to use the fuckin thing. ?
 
ChuggNorris said:
No thanks.

Stop trying to sound like van Halen.

The JVM is a great amp and it sounds like the "mods" just took the balls right the fuck off the amp and now it sounds just like every other van Halen wannabe.

No. Thanks.

JVM needs no updates. Some things are just right when ya known how to use the fuckin thing. ?
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Appreciate that. Those tones seem to include some balls...at least to my ears. In regards to having to "know how to use" the amp. I have owned one, and my issues with the amp seem to align with many of the other commonly held complaints about certain aspects of this head.
 
angelspade said:
Appreciate that. Those tones seem to include some balls...at least to my ears. In regards to having to "know how to use" the amp. I have owned one, and my issues with the amp seem to align with many of the other commonly held complaints about certain aspects of this head.
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The most aggressive and brutal marshall is a JVM in the right hands. It has the balls and the aggression!

Alot of people just didn't understand how the controls worked. The designer spent alot of time explaining it though. There were no issues with negative feedback and shit. It was user error.

Happens all the time. Like mesa rectifiers. Notoriously dialed badly and then "it has flubby low end needs a boost" bullshit follows. Instead of just turning the bass control down to 2 and bringing up the mids/precense/highs and gain in different combinations.... rectifier can be tight as fuck when dialed right with boost needed. Now I say this while 10 others claim they couldn't get a tight low end out of one. I preferred without a boost. Sounded just as good with less smear.

All 6 rectifiers i had behaved the same way.

My point being, in my experience... what "many others" deemed this or that... I proved to myself they were all full of shit by getting the amps and seeing for myself. Its then I realized people really don't spend time learning their amp controls.

The JVM fits into this category for sure.
But you know. People always think they can make something better and they end up making it all sound the same by doing so. Another van Halen sounding mod. It's a JVM. Let it be a JVM.

Some people just need to put the soldering iron down and learn what knob tweaking is for a minute.
 
Too bad Marshall let Santiago Alvarez (JVM primary designer) leave.

I'm very pleased with my JVM410H. I open up the MV and play mine loud; sounds great to me.
 
Old thread, I'm surprised there isn't a reply from me on here since I guess I'm the resident JVM fanboy lol. I've had a modded JVM410 and I prefer the stock amp. Had the HJS, preferred the stock, actually I prefer the Peavey JSX over the Marshall HJS. Different strokes for different folks.

Now it is time to update the amp. It'll be interesting to see if Marshall rolls something out at NAMM. My updates to the JVM would be the Noise Gates and the Serial Loop - both things they put in the HJS. If possible I would also try some IR's since that's what everyone wants.

@rsm push your channel volumes, remember the Masters don't push your power section any harder. That's per Santiago. And yes, great designer, did alot of stuff for Marshall including the YJM head.
 
rsm said:
Too bad Marshall let Santiago Alvarez (JVM primary designer) leave.

I'm very pleased with my JVM410H. I open up the MV and play mine loud; sounds great to me.
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They really are special, because Alvarez ws special. Listening to him, it was like he was the steve fryette of Marshall. He understood how to use the design and alot of people could have benefitted from just listening to the guy talk about the amp he designed.


They also sound incredible with the master cranked on up and channel volume brought in for taste ?

I'll take a JVM410 over a diezel ANYTHING. I felt like it smoked the herbert mkiii in the room also. But.. so did my SLX. The JVM and SLX are my 2 favorite marshalls with the DSL coming right in a close 3rd.

If you can't get a variety of extremely amazing tones from plexi to all out Jose mod and beyond out of a JVM410, we can conclude it's user error at this point. ?
 
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