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Author Topic: HRM Bluesmaster setup advice  (Read 131329 times)
plasticvonaband
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« Reply #105 on: May 02, 2012, 01:18:24 PM »
Quote from: screamtone on May 02, 2012, 12:22:50 PM
Quote from: plasticvonaband on May 02, 2012, 02:39:59 AM
Quote from: screamtone on May 02, 2012, 01:38:17 AM
Quote from: StratUltra on May 01, 2012, 11:13:36 PM


I'll be tweaking the HRM trimmers this weekend a little more and I've made note to bump the mids and turn the treble down as silly me, I did all my sound checks only on the jazz setting. Sounds a little too trebly on rock.

 

Can you share your trimmer settings and how you decided on them? I'm really struggling with the OD channel on my Bluesmaster. Thanks!

The trimmer settings have to be set according to you ears and what you like. there is no standard setting per se


gregg

I can dig that, just hoping for some advice with a starting point. I bought by Bluesmaster used, so I'm not really sure that the trimmers were set anywhere in the ballpark of a usable tone in the first place. It doesn't sound very good right now. It's pretty harsh and constricted, with out the normal controlled feedback I'd expect from a D-style amp.

Well, set your OD trim on the rear to between 10 o clock and noon. Set the HRM tonestack to default values which would be bass barely on, and treble and mid to between 10 o clock and 11 o clock. Set your clean tonestack to taste, and be sure to use the PAB when you use the OD. This is how it is designed to be used. Adjust the drive, OD trim, and HRM stack to taste.

Gregg
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Overdrive is like peanut butter. Some like it crunchy, some like it creamy.
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SoundPerf
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« Reply #106 on: May 02, 2012, 07:28:04 PM »
Quote from: plasticvonaband on May 02, 2012, 02:39:59 AM
Quote from: screamtone on May 02, 2012, 01:38:17 AM
Quote from: StratUltra on May 01, 2012, 11:13:36 PM


I'll be tweaking the HRM trimmers this weekend a little more and I've made note to bump the mids and turn the treble down as silly me, I did all my sound checks only on the jazz setting. Sounds a little too trebly on rock.

 

Can you share your trimmer settings and how you decided on them? I'm really struggling with the OD channel on my Bluesmaster. Thanks!

The trimmer settings have to be set according to you ears and what you like. there is no standard setting per se


gregg

I wasn't going to post this because it will probably just csuse more questions than solutions, but here it is. I didn't write it, and forget who it's from, but I pretty sure I copied and pasted it from a post over at TAG and it's was from an experienced builder. So if you have the know how it may be useful.
* settingHRMtrimmers.txt (2.31 KB - downloaded 432 times.)
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Chris

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StratUltra
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« Reply #107 on: May 06, 2012, 07:15:23 AM »
Hey guys,

Had the amp opened up to play with the trimmers again and noticed the mids trimpot is at 25k instead of 20k, the bass at 250k instead of 220k and the same for the treble. Is this likely to be an issue?
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212Mavguy
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« Reply #108 on: May 06, 2012, 12:13:23 PM »
No issue...have fun!
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AdrianJ
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« Reply #109 on: May 06, 2012, 09:01:54 PM »
Quote from: plasticvonaband on May 02, 2012, 01:18:24 PM
...be sure to use the PAB when you use the OD. This is how it is designed to be used...

Gregg

Is it possible to have the footswitch for selecting between Clean & OD automatically engage the PAB when the OD is selected?
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plasticvonaband
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« Reply #110 on: May 06, 2012, 10:12:18 PM »
I am sure you could have a tech wire the relays up that way. The only problem is that then the PAB would be hot wired to the OD and vice versa, so the PAB couldn't be used separately. A tech could rewire the whole switching system, though. I think two rock and others have 3 and 4 button footswitches and i have heard of one that had adjustable PAB level in the footswitch as well.

 One of these days i'm gonna have a tech rewire mine and have a footswitch pedal that controls the OD, PAB, Bright Switch, Mid Boost, Deep Switch, and rock/jazz, Maybe even the HRM Bypass. London power sells the relays and little boards, it's just knowing how to wire it, and having enough power from the tranny to do it. I would prolly need a separate tranny, or most likely just build another 1 rack sized box like the c-lator, and build the system in that, and put the c-lator, relay unit, and a rack power unit in a 3 rack box and set it on top of the amp. that's gonna be pricy, though,  and a long way off.

For now as far the OD and PAB together, I usually just stomp both switches at the same time, just turn my foot 90 degrees and stomp, kinda like heel toe driving Wink


Gregg
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Overdrive is like peanut butter. Some like it crunchy, some like it creamy.
Bluesmaster 50 2x12 combo and some guitars.
rane008
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« Reply #111 on: May 06, 2012, 11:54:50 PM »
Quote from: SoundPerf on May 02, 2012, 07:28:04 PM
Quote from: plasticvonaband on May 02, 2012, 02:39:59 AM
Quote from: screamtone on May 02, 2012, 01:38:17 AM
Quote from: StratUltra on May 01, 2012, 11:13:36 PM


I'll be tweaking the HRM trimmers this weekend a little more and I've made note to bump the mids and turn the treble down as silly me, I did all my sound checks only on the jazz setting. Sounds a little too trebly on rock.

 

Just to give cred, I believe that this is from Aryan.  I could be wrong though.

Can you share your trimmer settings and how you decided on them? I'm really struggling with the OD channel on my Bluesmaster. Thanks!

The trimmer settings have to be set according to you ears and what you like. there is no standard setting per se


gregg

I wasn't going to post this because it will probably just csuse more questions than solutions, but here it is. I didn't write it, and forget who it's from, but I pretty sure I copied and pasted it from a post over at TAG and it's was from an experienced builder. So if you have the know how it may be useful.
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plasticvonaband
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« Reply #112 on: May 07, 2012, 06:51:06 AM »
Sweet! Glad you found a way to find the sound you were looking for. FWIW I am known to take non traditional approaches to get tones I'm after with the OTS as well. Sometimes it's fun to run the bias hot and really go for that tweed sound. I ran a set of JAN 6L6WGB's at 425 volts and 50ma via the sag switch yup, 50ma! Sounded sweet and even meaner than standard bias, but it was a one trick pony. No clean what so ever, but oh man!!! I wouldn't recommend it, though, at least with those 23 watt tubes. Could cause damage if they red plate and short. But man, what a sound!!!


Gregg
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Overdrive is like peanut butter. Some like it crunchy, some like it creamy.
Bluesmaster 50 2x12 combo and some guitars.
plasticvonaband
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« Reply #113 on: May 07, 2012, 08:46:33 AM »
I said it wasn't loud? I don't remember that lol. It's plenty loud. Loud enough that I shook some plaster loose in my guitar room yesterday, and my house is concrete block and plaster!  I think I may have said it can be quiet using the c-lator as a global master
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Overdrive is like peanut butter. Some like it crunchy, some like it creamy.
Bluesmaster 50 2x12 combo and some guitars.
StratUltra
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« Reply #114 on: May 13, 2012, 11:17:20 AM »
Hi guys,

Just an update on the amp.

Nothings been changed with the exception of some tweaking and a few emails back and forth with Nik.

Turns out the volume adjustment I had for the tone stack bypass was actually a pot for the lift to adjut how much I wanted it to actually bypass. I've since had this cranked up and the OTS OD tones are there. At the moment, having this pot and the PAB adjustment pot cranked seems to be where the OD channel sounds at its best. I've tested the bypass pot by havin it cranked to full, which completely bypasses the HRM stack and have tried adjusting the internal trim pots to check, and yep, it is completely unresponsive when engaged. And all this time I thought it was to just level the volume out!

Must say, the amp certainly had the John Mayer cleans and has a very smooth d*type OD now. Need more time to tweak it further (and I suspect I'll forever will be) but the amp no longer has me scratching my head. Very pleased with it and the mods that Nik did on it for me.

This amp is going no where...
« Last Edit: May 13, 2012, 11:18:52 AM by StratUltra » Logged
rane008
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« Reply #115 on: May 21, 2012, 08:27:31 PM »
Hey All,

Well, I thought I'd bump this thread, since I have been interested in it from the beginning.  I was in a similar situation as StratUltra, just not getting the sounds I wanted out of the amp.  As you guys can see from my posts, I tried a lot of things to switch up the sound and they worked, to varying degrees.  So here is the thing, though.  I felt the OD on the amp was flubby and boomy.  The bass was out of control. 

So, a couple weeks back.  I ask the dudes at The Amp Garage what mods I should consider for the amp, given what I was looking for.  I told them I intended to drop the amp at King Amplification near San Jose (California).  So one of the forumites drops me a message, saying he builds these amps, is in San Jose, and will open her up and do some tuning for free if I want to stop by. SCORE.

I show up with a 6 pack of good beer and a clean boost pedal with a loose solder joint to offer in trade.  Totally surprises amp dude.  He was just going to do it for the hell of it, and get to jam out some.  Well, he drops the amp out of the cab, and starts going through the HRM trims (mines a 100w Bluesmaster).  Bass is really boomy at this point.  He notes the bass trim is all the way off.  Huh, interesting.  As he's adjusting the trim though, we hear some crackle and hiss.  Thinking that there may be a loose solder joint on the trim, he pulls the board and retouches the joints.  Brings it back and holy shit guys, totally different amp.  It is now everything I want it to be.  It can Rock or it can RAWK, yah know?  Dude also tunes the PI for more bloom and harmonic content (very key, guys), and checks my bias.  Turns out, after 2 years of running her with the Master at 7 (Clator for meta-master), the TAD 6L6's were still balanced and matched.  I recommend these tubes to everyone, so I'm glad they are working well.  Anyway, that's about it, just a show of great karma from a fellow Dubmele devotee.
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plasticvonaband
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« Reply #116 on: May 23, 2012, 02:24:15 PM »
Quote from: rane008 on May 21, 2012, 08:27:31 PM
Hey All,

Well, I thought I'd bump this thread, since I have been interested in it from the beginning.  I was in a similar situation as StratUltra, just not getting the sounds I wanted out of the amp.  As you guys can see from my posts, I tried a lot of things to switch up the sound and they worked, to varying degrees.  So here is the thing, though.  I felt the OD on the amp was flubby and boomy.  The bass was out of control. 

So, a couple weeks back.  I ask the dudes at The Amp Garage what mods I should consider for the amp, given what I was looking for.  I told them I intended to drop the amp at King Amplification near San Jose (California).  So one of the forumites drops me a message, saying he builds these amps, is in San Jose, and will open her up and do some tuning for free if I want to stop by. SCORE.

I show up with a 6 pack of good beer and a clean boost pedal with a loose solder joint to offer in trade.  Totally surprises amp dude.  He was just going to do it for the hell of it, and get to jam out some.  Well, he drops the amp out of the cab, and starts going through the HRM trims (mines a 100w Bluesmaster).  Bass is really boomy at this point.  He notes the bass trim is all the way off.  Huh, interesting.  As he's adjusting the trim though, we hear some crackle and hiss.  Thinking that there may be a loose solder joint on the trim, he pulls the board and retouches the joints.  Brings it back and holy shit guys, totally different amp.  It is now everything I want it to be.  It can Rock or it can RAWK, yah know?  Dude also tunes the PI for more bloom and harmonic content (very key, guys), and checks my bias.  Turns out, after 2 years of running her with the Master at 7 (Clator for meta-master), the TAD 6L6's were still balanced and matched.  I recommend these tubes to everyone, so I'm glad they are working well.  Anyway, that's about it, just a show of great karma from a fellow Dubmele devotee.

Very cool! Glad you got it running the way you like! After 2 weeks or so of having mine out of the cab and tweaking the trimmers i have the HRM just the way i like it. I can now say that i am fully satisfied with my BM, so much so that i am not even going to bother changing the speakers out. Between changing the output tubes to the tung sol 6L6GC-STR's, rediscovering the full lift PAB, and tweaking the HRM, i can now get those early jimmy page (think BBC Sessions, Zep 1&2) and early clapton (bluesbreakers, yardbirds) that i so dearly love with the HRM side. It really brings out the early overdriven Marshall sound. I am very, very pleased  Grin
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Overdrive is like peanut butter. Some like it crunchy, some like it creamy.
Bluesmaster 50 2x12 combo and some guitars.
rane008
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« Reply #117 on: May 24, 2012, 04:07:06 PM »
Did you build it or buy it pre-made?  There could be a problem with the wiring or you could have some loose soldering joints.  On mine, they all work well, save for the mid being pretty subtle. 
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plasticvonaband
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« Reply #118 on: May 26, 2012, 05:05:35 PM »
I agree. Can't hurt to check those solder joints if the trimmers don't seem to be working.
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Overdrive is like peanut butter. Some like it crunchy, some like it creamy.
Bluesmaster 50 2x12 combo and some guitars.
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« Reply #119 on: July 12, 2012, 06:31:49 PM »
Gentlemen,

I ordered the 100W Bluesmaster with a few mods. Won't get it for a few more weeks.

I REALLY appreciate your posts and the time you spend informing people like me of your experiences.

I'm sure we will be talking soon. Now I have to be patient.

thanks,
Mike
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