Here is a demo I did of my Too Rock amp with my Black One stratocaster. No EQ, filters, etc. Just a soft limiter to get better levels. Reverb comes from the T-Rex Roommate 2 in the amp loop. No idea where the pops in the first minute of the clip come from. Sorry about that.
BTW, the last three licks are on the overdrive channel set to a bit of crunch
For those who missed my thread, it's basically a #124 with a few Two Rock tweaks and some of my own. I built in a full dumbleator. I also changed the preamp boost and about 20 other tweaks. It sounds incredible on the clean channel and the preamp boost is very beautiful. Tweaked the overdrive to 183 specs.
Here are the pictures. Please let me know what you think.
I think the clean channel sounds great. Like Steve, I find the overdrive somewhat harsh. Not knowing the actual circuit and components used in the amp, it's difficult to say something too meaningful. To me, it almost sounds like the chime and cripsness come from a brightness cap somewhere. I wonder if the amp has a bright cap in the master volume, or if perhaps the preamp bright switch was on during the recording? It sounds that way to me. I find that those things work very nicely for clean, but they can have a negative effect on the overdrive sound for my taste.
Cheers,
Gil
67plexi wrote:Joost, I like the clean channel Great, You need to warm up the overdrive channel
Try a 220k Piher with a 100k CTS trimmer. Looks top notch.
xtian wrote:I got the impression the mic was dead center on the cone. True or not, Joost?
No, tbe mic was right at the edge of the cap, so partly on the cone, partly on the cap. But i agree the OD is a bit harsh in this clip, very different from the actual sound in the room
I did have the bright engaged for the overdrive. Might need a bright-on-clean-only relay, though it sounds too dark to me on overdrive without the bright cap
Joost wrote:
I did have the bright engaged for the overdrive. Might need a bright-on-clean-only relay, though it sounds too dark to me on overdrive without the bright cap
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I have to admit I've never tried that, although it sounds like a good idea. That is one advantage of having totally separate master volumes, you can put a decent size bright cap on the clean master and a tiny one on the lead master, if at all needed.
I have modded both my D'lite and 100w ODS clone with the bright on clean relay.
I really like it for clean (120pf) but agree it doesn't sound good on OD.
How would one go about changing the amp to separate masters for clean and OD?
justin_t_ wrote:this sounds amazing joost! if you don't mind me asking, what exact mods did you do? this is the exact clean sound that i am hunting!
Thanks, please note that part of the sound is in the guitar and pickups as well. Maybe more importantly still: speakers. I have two 112 cabs with a Scumback Scumnico and a Scumback H75
I started with a basic 124, I added my adaptation of a dumbleator (you can find a schematic and layout of it on this forum), I changed the phase inverter caps to Xicon MPP. I changed the bright cap to a 100pf ceramic. Changed the 15pf ceramic on the master to 20pf Silver Mica and put changed the bright caps from the dumbleator send and return to 250pf ceramic with a 10pf silver mica added in parallel on the return. I also changed the bass cap to Xicon MPP and used NOS Telefunken 60s preamp tubes. I got a Telefunken with matched triodes for the phase inverter and set it just slightly off perfect balance.
Another important tweak was removing the negative feedback loop on V1 (I put it on a switch so I could switch it in and out.
Hope this helps
Last edited by Joost on Sat Jun 09, 2012 12:45 pm, edited 1 time in total.
667]http://www.familieassink.com/documents/toorock1.jpg[/img]
