The DSL40C - Solutions To Problems Without Clipping/Soldering:

Inspector #20

Ambassador of Tone
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I wanted to post an update to this thread with some information and things that I learned. I have since picked up a second DSL40C, also a 2016 build, that I have added as my #2 amplifier for live work.

I have not done any of the tone cap/clipped resistor mods that some have suggested. I play these amps at very high stage volumes - usually 12 noon to 1pm on the knob - and under those conditions, I do not think the mods- like 'C19' - are needed. So, my comments that follow are centered around a totally stock amplifier.

Speaker:

IMHO, at least 90% of my dissatisfaction with my DSL's was the stock speaker. Initially, I was using custom made, 50 watt WGS Reaper 55Hz models. They work nicely, despite needing a lot of break in time. I recently switched to the Electro-Harmonix 12VR75. Not only is this speaker noticeably louder - dial position for given dial position - (it's a 98 db rating) it's break in time is greatly reduced. This is the speaker I am running now. Great chug and response.

Pre-Amp Tubes:

I tried at least 8 documented tube combinations. I found two that give me what I want:

ECC823/ECC83S/ECC83MG/5751 was a great combination and was easy to make up from tubes on hand. It also worked good with both a 12AU7 and 12AT7 in the V1 slot, but the ECC823 in V1 had a better gain response at lower knob settings.

I still use the 12AU7 in V1 for some amps that I set up for others when a very mild gain structure is desired.

However, I found a combination that sounded even better IMHO, and was even easier to create:

7025WA/JJ5751/7025WA/JJ5751

This is now my 'default' tube loadout. I use it on both amps. It has a very warm and organic gain structure and allows dramatically increased range of motion on the gain knob.

Tube Screamer:

The addition of a TS-9 as a clean boost tightened up the low end. Combined with the reduced preamp gain of the tube combination, the TS-9 allowed greater levels of gain with increased clarity. Both amps sound good without it, but they become multi-dimensional when it is in play. It's a nigh and day difference.

The Pedals:

Rob Pedalboard.jpg


I use these to color my tone. Only two pedals are not in use 100% of the time.

Left EQ: It is used only as a boost for solos

DD-3: Used for solos only.

The amp volume is set to around 2pm and the volume is controlled by the Boss FV30L in the board's center.

Primary Signal Paths Is: Korg Tuner >>> TS-9 >>> GE -7 #1 >>> CS-3 >>> NS-2 >>> Front of DSL40C

Secondary Path Is: FV30L to FX Loop Send - FV30L >>> DD-3 >>> GE-7 #2 >>> CE-5 >>> to FX Loop Return

All other pedals are very subtle, making very little change when switched on individually, but together, they add a very unique element to my overall tone.

I tried the X pattern and every other order one can imagine, but this was the arrangement that gave me what I was hearing in my head. Te board is quiet under all conditions, even in the studio.

So, for me, the DSL40C has become my mainstay amplifiers.

Here's a shot my two DSL40c's. In the middle is my owned-since-new, 1999 G50 Marshall SS, which serves as my lightweight practice amp.


DSL's and G50.jpg


Finding my tone was a very difficult and time consuming venture and it involved a lot of research and bringing some old vintage pedals back into action.

I happened to read an article on line very late one night where max Norman commented on the fact that Lynch ran a chorus 24-7 as pillar of his tone. Since I had a vintage 1980's Arion SCH-1, I tried some experiments - and the results were just awful. It was a mystery to me how anyone could run chorus and get it to sound good. Then, I ran across a photo of Lynch's 2018 rig and there was a CE-5 on the board. I posted some questions in here and got favorable reviews by actual users, so I set out to get one. I ended up trading an old 1980's Arion Metal Master pedal for a brand new CE-5 still in the factory packaging. This is the only Boss effect that has not been modded by Modest Mike. It is 100% stock.

The chorus was - by itself - a very subtle thing. It added some color and has a two band EQ, which allows me to again EQ the sound to some extent, but it's effect was not fully realized until I switched on the entire board at once.

The interplay of the delay and reverb is fantastic. It is never switched off except on songs like "Symphony Of Destruction." The effect is subtle. The rhythms sound fuller and deeper and there is a definitive slap-back when a note is abruptly choked off, but the effect is on all the time with absolute clarity. Although the settings on the DD-3 do not allow for precise user-programming of the delay effect, I found that 800ms, with a single repeat and a second 'ghosting fade' was the perfect blend from a tonal perspective. If more delay is needed, increase the pick attack. Very simple.

When the board is switched on, there is no noise. Each effect comes online silently and without loud hissing. What little noise the chain makes is completely quelled by the NS-2. The amp is extremely responsive to pick attack and the tone can be almost clean if picked lightly. The behavior of this rig at such high performance volumes is just so incredible. It's well behaved, doesn't squeal or feedback and really sounds good - as in the mixture and sonic texture of the tone is very broad and engaging to the listener. There are no feedback issues even on a tight stage at over 12 noon volume settings on 40 watt (full power) mode. None. Zero.

The speaker movement during F# palm mutes is something you really have to hear in person. You can feel the speaker movement in the room. It's incredibly dramatic.

I hope something in this post will help you in your own personal DSL40C tonal quest....
 
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I'm not surprised that you have seemed to achieve some tone nirvana. You are very meticulous, and with great ear listening skilz to boot.

And now some personal advise: NOS 5751s are still available at reasonable costs. New JJ 12AX7's and the JJ 12AT7's have failed me more than once. I've developed a great dislike to JJ-anything for years now. If they sound great to you that's perfectly fine. Make sure you have backups wherever your amps are... :fingersx:
 
A very interesting review Robert
I know quite well how these Dsl40c’s react, as I also have a pair of them, but we all know that I am running mine as a dual mono rig, with the exception of the lead 100 mosfet, also in the equation.
I also have 2 different ways of powering this all up.
Vox tone lab, or the mxr 10 band eq, when using the vox tone lab, I need to run the amps green clean channel, and the fx from the tone lab are all going to the front of the amp, and I use the 68 plexi, and tube overdrive. (as called on the tone lab) this mix is a great way to play low volume, but to turn up to play with a drummer.
I like the simplicity of the mxr 10 band eq and the red lead 1 chanel
EQ on the amp remains the same only volume and gain get moved.
I am going to have to give your tube selection a try though.
Thanks again for your very informative review!
Cheers Mitch
 
Your attention to detail is almost over whelming.
I'm glad you have found your happy place as far as your tone is concerned with your amps.
We all know how important that is to you.

I look at your pedal board and smile, thinking back to how you boasted of your 4 pedal setup of so many years, now look at you.
We all enjoy being part of you journey.
 
Your attention to detail is almost over whelming.
I'm glad you have found your happy place as far as your tone is concerned with your amps.
We all know how important that is to you.

I look at your pedal board and smile, thinking back to how you boasted of your 4 pedal setup of so many years, now look at you.
We all enjoy being part of you journey.
That is how I ended up on the TTR from the MF
 
I'm not surprised that you have seemed to achieve some tone nirvana. You are very meticulous, and with great ear listening skilz to boot.

And now some personal advise: NOS 5751s are still available at reasonable costs. New JJ 12AX7's and the JJ 12AT7's have failed me more than once. I've developed a great dislike to JJ-anything for years now. If they sound great to you that's perfectly fine. Make sure you have backups wherever your amps are... :fingersx:

Wow!!!!

I'm grateful for the tip, but I've had really good luck with JJ's...
 
Your attention to detail is almost over whelming.
I'm glad you have found your happy place as far as your tone is concerned with your amps.
We all know how important that is to you.

I look at your pedal board and smile, thinking back to how you boasted of your 4 pedal setup of so many years, now look at you.
We all enjoy being part of you journey.

I resisted effect pedals for years, but your TS-9 changed everything.
 
I'm not surprised that you have seemed to achieve some tone nirvana. You are very meticulous, and with great ear listening skilz to boot.

And now some personal advise: NOS 5751s are still available at reasonable costs. New JJ 12AX7's and the JJ 12AT7's have failed me more than once. I've developed a great dislike to JJ-anything for years now. If they sound great to you that's perfectly fine. Make sure you have backups wherever your amps are... :fingersx:

@Mitch Pearrow SJMP spent some time yesterday playing through my rig with all pedals in play at once - which is how i use it. hope he will post some of his observations....
 
@Mitch Pearrow SJMP spent some time yesterday playing through my rig with all pedals in play at once - which is how i use it. hope he will post some of his observations....
That I will, while playing it with Henry the drummer of your band, I really couldn’t tell the delay was on , the rig as a whole is on the money tone wise, I couldn’t find anything that I would do differently, (except turn the volume up a hair)
The only thing I found uncomfortable was Roberts string gauge, and I didn’t bring my own 1. mill pick, and my entire warm up was done at gig volume.
I am not the pro my buddy Robert is.
And their new bassist is a keeper
 
I wanted to post an update to this thread with some information and things that I learned. I have since picked up a second DSL40C, also a 2016 build, that I have added as my #2 amplifier for live work.

I have not done any of the tone cap/clipped resistor mods that some have suggested. I play these amps at very high stage volumes - usually 12 noon to 1pm on the knob - and under those conditions, I do not think the mods- like 'C19' - are needed. So, my comments that follow are centered around a totally stock amplifier.

Speaker:

IMHO, at least 90% of my dissatisfaction with my DSL's was the stock speaker. Initially, I was using custom made, 50 watt WGS Reaper 55Hz models. They work nicely, despite needing a lot of break in time. I recently switched to the Electro-Harmonix 12VR75. Not only is this speaker noticeably louder - dial position for given dial position - (it's a 98 db rating) it's break in time is greatly reduced. This is the speaker I am running now. Great chug and response.

Pre-Amp Tubes:

I tried at least 8 documented tube combinations. I found two that give me what I want:

ECC823/ECC83S/ECC83MG/5751 was a great combination and was easy to make up from tubes on hand. It also worked good with both a 12AU7 and 12AT7 in the V1 slot, but the ECC823 in V1 had a better gain response at lower knob settings.

I still use the 12AU7 in V1 for some amps that I set up for others when a very mild gain structure is desired.

However, I found a combination that sounded even better IMHO, and was even easier to create:

7025WA/JJ5751/7025WA/JJ5751

This is now my 'default' tube loadout. I use it on both amps. It has a very warm and organic gain structure and allows dramatically increased range of motion on the gain knob.

Tube Screamer:

The addition of a TS-9 as a clean boost tightened up the low end. Combined with the reduced preamp gain of the tube combination, the TS-9 allowed greater levels of gain with increased clarity. Both amps sound good without it, but they become multi-dimensional when it is in play. It's a nigh and day difference.

The Pedals:

View attachment 31871


I use these to color my tone. Only two pedals are not in use 100% of the time.

Left EQ: It is used only as a boost for solos

DD-3: Used for solos only.

The amp volume is set to around 2pm and the volume is controlled by the Boss FV30L in the board's center.

Primary Signal Paths Is: Korg Tuner >>> TS-9 >>> GE -7 #1 >>> CS-3 >>> NS-2 >>> Front of DSL40C

Secondary Path Is: FV30L to FX Loop Send - FV30L >>> DD-3 >>> GE-7 #2 >>> CE-5 >>> to FX Loop Return

All other pedals are very subtle, making very little change when switched on individually, but together, they add a very unique element to my overall tone.

I tried the X pattern and every other order one can imagine, but this was the arrangement that gave me what I was hearing in my head. Te board is quiet under all conditions, even in the studio.

So, for me, the DSL40C has become my mainstay amplifiers.

Here's a shot my two DSL40c's. In the middle is my owned-since-new, 1999 G50 Marshall SS, which serves as my lightweight practice amp.


View attachment 31870


Finding my tone was a very difficult and time consuming venture and it involved a lot of research and bringing some old vintage pedals back into action.

I happened to read an article on line very late one night where max Norman commented on the fact that Lynch ran a chorus 24-7 as pillar of his tone. Since I had a vintage 1980's Arion SCH-1, I tried some experiments - and the results were just awful. It was a mystery to me how anyone could run chorus and get it to sound good. Then, I ran across a photo of Lynch's 2018 rig and there was a CE-5 on the board. I posted some questions in here and got favorable reviews by actual users, so I set out to get one. I ended up trading an old 1980's Arion Metal Master pedal for a brand new CE-5 still in the factory packaging. This is the only Boss effect that has not been modded by Modest Mike. It is 100% stock.

The chorus was - by itself - a very subtle thing. It added some color and has a two band EQ, which allows me to again EQ the sound to some extent, but it's effect was not fully realized until I switched on the entire board at once.

The interplay of the delay and reverb is fantastic. It is never switched off except on songs like "Symphony Of Destruction." The effect is subtle. The rhythms sound fuller and deeper and there is a definitive slap-back when a note is abruptly choked off, but the effect is on all the time with absolute clarity. Although the settings on the DD-3 do not allow for precise user-programming of the delay effect, I found that 800ms, with a single repeat and a second 'ghosting fade' was the perfect blend from a tonal perspective. If more delay is needed, increase the pick attack. Very simple.

When the board is switched on, there is no noise. Each effect comes online silently and without loud hissing. What little noise the chain makes is completely quelled by the NS-2. The amp is extremely responsive to pick attack and the tone can be almost clean if picked lightly. The behavior of this rig at such high performance volumes is just so incredible. It's well behaved, doesn't squeal or feedback and really sounds good - as in the mixture and sonic texture of the tone is very broad and engaging to the listener. There are no feedback issues even on a tight stage at over 12 noon volume settings on 40 watt (full power) mode. None. Zero.

The speaker movement during F# palm mutes is something you really have to hear in person. You can feel the speaker movement in the room. It's incredibly dramatic.

I hope something in this post will help you in your own personal DSL40C tonal quest....

Gonna try it out on my DSL 40C. I've done a bit of tuning tube wise. Very curious to see/feel the results. Plan on trying a Jensen Tornado 12" at 100 watts as well. Be my first speaker change. Mine still has the 70/80.

I just tuned my 1990I with a RFT in V1 and then 2 12AY7's to finish the preamp. Also put 4 6V6's in the power section. Quieter front end, lower volume and digging the dynamics. Didn't neuter the amp at all. Made it more to my liking. Still plenty loud at 60/120 watt settings plus thump. I pedal the front of the green channel and go straight in on the red as it has plenty of gain. Useable now.
 
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