I use Synergy as well as the older Egnater and Randall MTS stuff. Most of it is run through a Fryette PS-100. I've tried them through several amp heads and they all sounded slightly different, but equally well. I decided to ultimately go through the PS-100 as I found it best when working with multiple styles of modules to have a transparent power amp. Basically, let the module do the heavy lifting for tone. Plus a power station is one of the items they use when designing all the modules. I attempted to run the SYN2's and M4's though my Randall RM100, but having to use a loop switcher into the FX return introduced too much noise. It is much quieter through the PS-100 set up like that. I also have an Egnater M4 that I run as a bass module platform. Currently it's going through the power section of my Mesa Titan. Every so often when I acquire a small batch of MTS modules I'll send them off to Rob at Jaded Faith for some custom mods.
I think it's great Synergy was able to get the actual companies to design their respective modules, but I think they're missing out on a big opportunity. I get it you need to replicate your popular amps, have a Fender & Marshall style module, I love my IICP module, etc, etc. But how about designing some original modules exclusive to the Synergy line that isn't trying to replicate something. That's really my only criticism.
Something I've discovered; which would tie into my original module criticism, is that some modules both Synergy and MTS work pretty well for bass. With some minor tweaking they'd be excellent for bass and open a different market for bass players. I have an old SL+ module that's pretty close to the Lemmy, Superbass/Murder One tone. I've tried the Bman module which works decently as a Fender style bass tone too. It just needs a slight tweak to a more bass centric circuit and you'd have a perfect Fender bass module. I've even had Rob mod a MTS module into a Orange AD200B. He was able to replicate the circuit 1:1 and said he liked it so much that it'll now be part of his regular offerings.
Beyond that I've tried most of the Synergy modules that have piqued my interest except for the Uberschall and 6505. At some point I'll end up getting them. First on the list though is to send a couple of MTS modules to Rob for modding into better bass modules.
I feel like this post isn't complete without pictures...
First up are the one's I'm currently using for bass. Plans for these are to mod the SL+ into a Traynor TS50B, the Blackface into a Silverface Bassman circuit, and a Plexi Plus (shown in next pic) into a Marshall Superbass.
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Next up is the Synergy & Modded Randall modules.
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Last but not least is my modded Randall RM100. Mods include dual channel, foglifter+ w/ negative feedback control, input gain, and most importantly upgraded MM transformers. I also did the custom wrap myself. It sounds brutal with both the MTS & Synergy modules. The 2 Egnater are slated for mods, just not sure what to do yet.
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