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i just scored a 1959RR MkII on eBay. I can't find any info on this mod. It has switches for JTM/JCM, Diode clipping. Vintage/Modern, and Haze and also features a cool recessed blue LED channel indicator light. How is the MKII differerent than the original 59RR? What exactly does the JTM/JCM...

What would be the best replacement preamp tube(s); e.g., 12AY7, to increase headroom in a stock Randall Tweed Module. I can get a great sparkly clean tone with the gain below 10 o'clock, but it starts breaking up quite a bit after that with humbuckers. I am using that module in channel 1 in my...

I just scored a Recto module on ebay. It works fine in channel 1 and 2 in my RM100 combo, but not in channel 3. I have 7 other modules and they all work in channel 3 on that amp. I also have an RM50 combo and the Recto works fine in both channels on that amp. Any ideas as to what is going...

I am running an old analog Boss DM-2 Delay and a digital Digitech Hardwire RV-7 Reverb pedal in the parallel FX loop on my Randall RM-50. I have the effects level maxed out on both pedals so that they are only sending the wet effected signal back into the amp. I set the FX Mix on the font of...

I just took a chance on a RM50 combo from GC online. When I got it, I noticed that it had EL34 tubes (I think stock are 6L6s), the stock Celestion speaker had been swapped for an Eminence Maverick and there is a toggle switch on the back of the chassis near the transformers that is labeled "Hi"...

I just scored a RM50 combo loaded with a KH-1 and 1086 modules for $379. I took a chance with this from GC online. There was only one poor photo and very little written in the description. When I got it, I noticed that it had EL34 tubes (I think stock is 6L6), the stock Celestion speaker had...

I just scored a RM50 combo loaded with KH-1 and 1086 modules for $379. I took a chance with this from GC online. There was only one poor photo and very little written in the description. When I got it, I noticed that it had EL34 tubes and the stock Celestion speaker had been swapped for a...

Does anybody know of a link or have a pdf copy of the old Randall Modules brochure or web page. It is hard to find any info on the MTS stuff anymore. It would be nice to have a list and description of all the modules! I wish I had scanned one of the old brochures back in the day and am hoping...

I have a RM-50 loaded with KH-1 and 1086 Modules on the way. I know that the 1086 was Dan Donnegan's signature module, but what is it based on? Is it simply a variation of Randall's Plexi module optimized for higher gain and tweaked to Dan's taste or is it something altogether different? Is...

I have a RM-50 loaded with KH-1 and 1086 Modules on the way. I know that the KH-1 was Kirk Hammett's signature module, but what is it based on? Is it simply a variation of Randall's Clean module optimized for active pickups and tweaked to Kirk's taste or is it something altogether different...

I need to add some Mesa tones to my rig. What is the difference between the Recto and Rectified modules? Is one generally regarded as superior to the other or is it simply a matter of horses for courses?

Which foot pedal would I need to switch channels and control the boost and reverb on a Randall MTS RM50? Thanks for your help!

Each preamp module has only two tubes, so where do the extra gain stages come from in the modules based on amps with 3 or more preamp tubes?

When I flip the standby switch from "Standby" to "Play"on my RM100 Combo, there is a loud popping sound. It has rendered the Standby switch unusable. It does not pop when switched in the opposite direction. Any ideas as to what might be causing this problem?

I am having a recurring issue with my RM-100 combo. Sometimes, when I turn on the amp, I get the following problems: 1. No sound except a low volume hissing. 2. Pilot light (LED) is very dim or even off completely. 3. The cooling fan does not come on. 4. The channel selector LEDs do not...

I won a modded Brown Module in an EBay auction. The guy said that it was a Pete mod, except that he went back to a .0047 cap at C3 because he preferred a fuller bass response. I am wondering if I should switch back to the .0022 cap? I run a graphic EQ in the effects loop of my amp and I do...

I have a Plexi module for my RM-100. I really like it, but, to me, it sounds more like a low gain version of a modern Marshall. A great sound, but it does not have that vintage Marshall midrange "honk". Can that sound be achieved with this module? The only current production amps that I have...

Can anybody tell me what the correct cap value or values for C3 would be in the Egnater SL2 module? Thanks

I am trying to get any idea what the Ultra XL sounds like. What amp/amps did Randall use as the basis for the Ultra XL? Is it more Marshall or Mesa Rectifier? A combination...something else altogether?

How do they compare tonally to the G12T-75's or Vintage 30's. I have an RM100 combo and would love to lighten the 77 lb load. Replacing the G12T-75's with Celestion Neodogs would bring it down to about 63 lbs, but I don't want to sacrifice tone!