DSL100HR having an issue with a pickup?

[Home Player]

I recently got the Seymour Duncan Distortion set installed in a guitar, and love the sound, but have run into an issue with my amp. Basically when I play the bridge pickup on either channel with the volume knob on the guitar all the way up (just playing around, mind you), the sound when playing the bottom string is just this muffled mess. Sort of like a cell phone camera picking up sound at a concert.

I thought it might be an installation issue with the pickup but I tried the same thing on an EVH 5150 and it sounded fine.

Is this an issue with the DSL? Is it just too saturated? I tried other guitars on the Marshall and they work fine, no issue. Maybe it's the pickup after all?

edited to add: Issue resolved. It's the pickup.

 

[tallcoolone]

I thought it might be an installation issue with the pickup but I tried the same thing on an EVH 5150 and it sounded fine.

What about another guitar with the DSL?

 

[Home Player]

What about another guitar with the DSL?

They're fine. Meant to add that to the OP, sorry. Just edited the OP to add, it's the pickup. I'm relieved!

 

[AdrianDSL]

What's exactly wrong with the pickup, if you don't mind?

 

[Home Player]

Sorry to edit again but it's not the pickup. It's the amp. It does the same with a lower output pickup. It was just the Distortion one but now it's any pickup it seems. It's especially noticeable when I trem pick (I play black metal). Found a video illustrating the same problem. It just flubs out. Sorry for the mix-up but I thought maybe it was just me on the lower output pick-up. Had a friend listen today and he noticed it as well.

 

[Mitchell Pearrow]

Sounds like the gain is cranked to much.
Does it still sound like this on the green crunch channel ??

The only time my Dsl40c’s flubbed out that bad was on red 2 with the gain at 10 .
I normally play with it at 2-1/2 to 3 with an SD1 in front.
Plus I put a 12AT7 in V2 and a 5751 in V4.
I play with a late 70’s Judas Priest type tone.
Hope you get your mojo back.

Cheers
Mitch

 

[Home Player]

Sounds like the gain is cranked to much.
Does it still sound like this on the green crunch channel ??

The only time my Dsl40c’s flubbed out that bad was on red 2 with the gain at 10 .
I normally play with it at 2-1/2 to 3 with an SD1 in front.
Plus I put a 12AT7 in V2 and a 5751 in V4.
I play with a late 70’s Judas Priest type tone.
Hope you get your mojo back.

Cheers
Mitch

It might be the gain. The green channel it differs session to session. Sometimes it does, sometimes it doesn't. I'll play around with it some more and see what happens. If a boost is activated it usually is okay.

 

[CraigerSS]

hmmm, could be a microphonic preamp tube. Try lightly tapping V1, V2 and V3 with a pen or pencil, with the amp turned up. If you get a thump or any amplified sound thru the speaker, you have a microphonic tube. Replace with a known good tube or you can get away with swapping it with V4 (the phase inverter tube).
Let us know if you figure it out.

Cheers,
Craig

I recently got the Seymour Duncan Distortion set installed in a guitar, and love the sound, but have run into an issue with my amp. Basically when I play the bridge pickup on either channel with the volume knob on the guitar all the way up (just playing around, mind you), the sound when playing the bottom string is just this muffled mess. Sort of like a cell phone camera picking up sound at a concert.

I thought it might be an installation issue with the pickup but I tried the same thing on an EVH 5150 and it sounded fine.

Is this an issue with the DSL? Is it just too saturated? I tried other guitars on the Marshall and they work fine, no issue. Maybe it's the pickup after all?

edited to add: Issue resolved. It's the pickup.

 

[SkyMonkey]

I have the 40CR, which is pretty much the half power version.

I found that the 'Flub' comes with too much channel gain.
One guy who used to post here said it was the circuit emphasising too much bass signal in the preamp.

The best high gain Ultra channel tones I get with the 40CR is by playing with the channel gain until the flub starts.
Then back off by one notch.
Then I play about with an OD pedal (GT-100 'natural OD actually) out front until I get the combined gain level I need.

For whatever reason, this just works better with a bigger DSL.

 

[Rudy v]

All the Vietnam made dsl have the same problem, i have the 100h just the same flub on the ultra gain, so what i did is to bypass a capacitor, on the 100h is c18 on the 100hr is c72 it should reduce the flub very much.

 

[AdrianDSL]

Sounds like too much gain, or dodgy valve in the preamp. @Home Player can you post a photo of your amp's OD settings?

 

[GregM]

Sounds to me like back the volume up to 9 or 8 on the guitar , and fine tune with the amp .
I can get my ac15 stupid crazy with both volumes below 4 and the guitar volume at 10 .
I understand the want to use your guitar volume to add gain , but don't go overboard