Grateful Dead Music Forum

A place to talk about the music of the Grateful Dead 

 #134307  by czyfingers
 Wed Nov 20, 2013 4:05 pm
Well, if my deal goes down, I'll have one in a couple days. I'm in the process of buying one. I have an SMS and a DSR, but your vids and the ones Joe from shakedown posted recently have made me lust for a bluesmaster. They sound so good to me.
 #134308  by czyfingers
 Wed Nov 20, 2013 4:34 pm
Counterstriker, I just watched your vid...sounds fantastic. I've been following your progress on here for a few years now and your chops have come right along nicely. I wish I started playing at your age instead of waiting till I was almost 30. Back to you BM modded at all or 100% stock? The one I'm grabbing has some Jerry mods as do all my other amps. Also which output are you using to your power amp? And what's the caninetulator all about? I'm new to the Bluesmaster world...I need a little background on how this thing works. Is that JBL an E or a K? Sounds sweet either way. Thanks for your help. You can PM me if you want.
 #134314  by cmc64
 Wed Nov 20, 2013 9:47 pm
Here's mine - modded by Joe from Shakedown Amps. There seems to be a renewed interest in these and as I just got home today from being away for almost a month I didn't have the energy to put a video together so I am using Joe's. Anyway, he did some great work on it and the sound is tip top but there is still some issue with it - maybe a bad op-amp or filter cap or something. It will work like a champ and then start crackling and dropping the signal. Someone mucked around with it before it got to me (or Joe) and did a bit of damage so I really do need to find someone who is willing to take the time to go through it cap by cap and figure out what the issue is, But when she sings.... o so lovely. Hope you dig it.
 #134357  by Counterstriker
 Fri Nov 22, 2013 10:58 am
Hey man, mines unmodded, i have a hammond tube from an old hammond a100. Similiar to an NOS RCA. I use the cabnetulator output, because it takes some of the harshness out is all it really does. Its supposed to mimic the sound a 4x12 celestion being mic'd. It's the hughes and kettner "Redbox" inside the preamp. I switched the spring reverb to large hall lastnight at a gig and it took the harshness out of the tone and sounded wonderful.

That issue your talking about CMC, i had the same issue with my last one its the transformer and the bad part is it can't be fixed, or it would be pricey to fix since its a custom one for such a small preamp. Just let air flow get to it because i found it would drop the signal if it got to hot! I have mine on a rack tray with holes in it with 2 spaces above it so it has "breathing room" these little guys get hot.
 #143313  by kralltime
 Sun Dec 14, 2014 6:34 am
I just put together a Bluesmaster rig (following a John K performance at the Capital Theater that blew me away)… anyway, I'm curious about others comments regarding the heat these little units put out - mine gets super hot running in the rack set-up I have… I realize there are real tubes running in there, but you all think this is fairly normal?
 #143314  by tatittle
 Sun Dec 14, 2014 10:04 am
I don't think Hammond made tubes, but re-branded high quality USA tubes of the day (so they are nice usually). You can often tell the original manufacturer by the etchwork, e.g. stopsign equals RCA.
 #146370  by oldsmojo
 Mon Apr 27, 2015 7:10 pm
Why would you upgrade these? Thats like saying why would you upgrade anything cheaply mass produced? Its all made with cheap pots,caps,resistors etc. They also utilize an opamp for driving the signal. All of these things will degrade sound purity especially in the high end. All the reissue Fenders..almost all Preamps out there including some of the most revered on here can see some nice improvement with the upgrades. When playing clean with hi fi speakers like jbls its definitely nice to know your trebles arent brittle and unfocused because it really shows in these rigs. Some people just arent used to what a great pure note should or can sound like because their ears just havent spent the time around really nice gear and the before and after sounds in upgraded gear. I personally dont like playing through cheap chassis, pots, and caps..especially the cheap ceramic discs that are found in all the HnKs and all Fender reissues. ~Joe
 #146505  by Dwarf Rat
 Mon May 04, 2015 9:19 pm
I played mine through a twin reverb size sealed cabinet with 12" and 10" JBLs. That little thing is loud! The drummer noticed two things: my Strat never sounded cleaner, and it is easier to get the Bluesmaster to sound like a Tweed Deluxe than vice versa.

The cabinet belongs to my brother, who claims to have another JBL hiding in the house. I told him to start digging.
 #146738  by TRG
 Mon May 18, 2015 7:02 am
mkaufman wrote:Ok, so how does one use this device. Lots of options...

I have this as my back-up rig, so don't use it often, but this is what I found to work best for me:

Settings on the front:
Gain = 7.5
Bass = 5 %
Mid = 100%
Treble = 100%
Bright = disengaged

Switches on the back set to:

Output used on the back to reverb/poweramp:
 #148130  by Dwarf Rat
 Thu Jul 30, 2015 10:27 am
I found a 15" JBL. A 13 ply Birch cabinet is being built for it. With some pedals: reverb, delay, boss ce and eh small stone chorus,qtron, and blues driver, I should get that snappy bright tone at a decent volume with the H&K.