Give me your impressions.....

[glasman]

Take a listen to the clip below. I have been working on a custom tuning based loosely around a BM front end and non-HRM OD section.

PRS -> Amp with GW Reverb - A - Loop in loop (only reverb on recording) -> 1x12 G1265. Amp is using TS 5881 reissues.


www.glaswerks.com/media/testclips/snake3.mp3

I still think it needs a touch more bass.

Sorry for the clams.

Thanks,
Gary

[Tonegurus]

That's right where I live. Are you in the OD side or just pushing the first stage?

Mike

[glasman]

That's right where I live. Are you in the OD side or just pushing the first stage?

Mike

OD side,,

[Tonegurus]

Nice and taught. That's why I wasn't sure - sometimes the OD side can sound a little balloony, even when dialed back.

Mike

[Deric]

I like it. Thanks for sharing.

[dreric]

I agree with your first thought, little more bass, but bass with some punch. I always think of bass representling the back wall, punchy and solid while the mids and higer frequencies the open doors. To my ear you've got the mids and highs down, very nice.

Thanks for sharing

Eric

[dr. who]

It sounds really good, but as you said it could take a tad bit more in the bass. I like the OD on it...it doesn't sound dull like I find most HRM's to be. I like the raw OD sounds so that may just be my personal bias. I have always found that bending strings to achieve beating intervals helps me really feel out a Dumble circuit...esp the OD. For some reason non-hrm amps usually exhibit a dirty growl almost burpy, whereas the hrm's tend to be more of a farty sound, but that doesn't always hold true, just most of the time. If you do the bending on a lower string it will give you a full representation of the bass it will have. I learned this technique from Col. Bruce

[Tonegurus]

Burpy vs. farty - decisions.....

Mike

[Structo]

Sounds good Gary.

Maybe a touch more bottom end needed.

What do you have for your bypass caps?

[heisthl]

What size bright cap on the master? I'm afraid if you add more bass into the OD your low notes will fuzz out and lose articulation (the bane of the non-HRM). So maybe a small reduction in the permanent bright cap or adding a series resistor feeding the PI etc. etc. to do it after the OD without ruining the clean tone in the process. You could also try increasing cK on V2b but I've never had good results with that. Hey it sounds good enough to leave it like it is - just sayin'.

[talbany]

Gary
Sounds good!!.. Smooth and articulate on the top.. Very Cool.. Something I've grown fond of on the OD is go with a 250K A Drive pot (like 124) instead of the 100k..Opens up the low end for me Either way sounds sweet!!

Tony VVT

[dave g]

Are you using .005uF for the OD2 decoupler? Because using a .01uF there will give you more bass coming out of the OD section without causing things to fizz out.

[glasman]

Thanks for all of the comments, a little more background on the amp. It started life as a "ripper" amp, I just could not live with the OD tone. So it has been back evolving to a more usable platform .

I also threw myself off of track when I had a set of TS 6L6STR start to go out and replaced them with a quad of Ruby 6L6GC that were NOTHING BUT BASS . So in the process, I added a series cap on the OD input and this is contributing to the problem .

So when I realized I was getting let down the prim rose path I swapped the rubys for TS 5881,

BTW, has anyone had problems with the TS 6L6STR's. The is the second set that started getting noisy (the last set got noisy then fried and took out the screen resistors, filament balance and hosed the OT a little bit, still usable.

I agree with your first thought, little more bass, but bass with some punch. I always think of bass representling the back wall, punchy and solid while the mids and higer frequencies the open doors. To my ear you've got the mids and highs down, very nice.

Thanks for sharing

Eric

Yes it needs a little more bottom end. I have found in general that the blues master front end does not have the same punch as say the Skyliner. It has more bass but softer bass touch/attack. I am happy with the clean sounds so I am concentrating only in the OD area.

It sounds really good, but as you said it could take a tad bit more in the bass. I like the OD on it...it doesn't sound dull like I find most HRM's to be. I like the raw OD sounds so that may just be my personal bias. I have always found that bending strings to achieve beating intervals helps me really feel out a Dumble circuit...esp the OD. For some reason non-hrm amps usually exhibit a dirty growl almost burpy, whereas the hrm's tend to be more of a farty sound, but that doesn't always hold true, just most of the time. If you do the bending on a lower string it will give you a full representation of the bass it will have. I learned this technique from Col. Bruce

Interesting, I will have to try that technique. Thanks for the comments. That is exactly what I want to add, a bit more Dirty Growl on the bottom end.

Sounds good Gary.

Maybe a touch more bottom end needed.

What do you have for your bypass caps?

The amp started life with 22uf's across the board (ripper configuration), it now has 4.7uf on all stages.

What size bright cap on the master? I'm afraid if you add more bass into the OD your low notes will fuzz out and lose articulation (the bane of the non-HRM). So maybe a small reduction in the permanent bright cap or adding a series resistor feeding the PI etc. etc. to do it after the OD without ruining the clean tone in the process. You could also try increasing cK on V2b but I've never had good results with that. Hey it sounds good enough to leave it like it is - just sayin'.

The amp has split masters, the lead master has a 47pf. I as well think upping the bypass caps is probably not the best bet. Not a fan of a series resistor in front of the PI, I always hear the resistors effect on top end and it bothers me . One of the reasons I have redesigned my reverb twice .

Gary
Sounds good!!.. Smooth and articulate on the top.. Very Cool.. Something I've grown fond of on the OD is go with a 250K A Drive pot (like 124) instead of the 100k..Opens up the low end for me Either way sounds sweet!!

Tony VVT

I think this is a good one. Upping the impedance will drop the knee of OD1. I will see how it reacts with the BM boost (which I have padded at this point).

Are you using .005uF for the OD2 decoupler? Because using a .01uF there will give you more bass coming out of the OD section without causing things to fizz out.

It currently has a .005uf. I was planning on try a .0068 and .0082 in the circuit as well as raising the impedance of the output section in general.

Thanks for all of the comments.

Gary

BTW, if anyone is interested, here is a picture of the reverb a loop.

[bigmik]

sounds really good, the top end is about perfect nice and smooth.maybe a little more low end ,how did it sound in the room?

[glasman]

sounds really good, the top end is about perfect nice and smooth.maybe a little more low end ,how did it sound in the room?

It was lacking bottom in the room as well. I used two mics when it was recorded a dynamic on the grill and a condenser about 3 feet from the cabinet at a 45 degree angle to the cabinet axis.

I will be back to it later today. I have two SOD II's that I need to get in their cabinets.

Gary