Yep, thanks for the reminder. Swapped them out and as of now plan to leave the EL-34's installed they sound great.

Can someone explain what this mod is?  Either a description of what it does to the tone, a technical description or both? 
Thanks
Sean

Kevster,
I play weekly in a contemporary praise band as well, and I feel for your quest for the ultimate tone setup.  I have a 50W HRM-OTS and am very happy with the clean and singing lead tones.  What i find I miss the most, is all of the lightly overdriven tones or those with a bit of hair around the edges.  As you know, that is a lot of the tones today in worship tunes.  I currently use a very nice TW Express clone.  It is amazing how it changes from clean to mean just by rolling off on the volume of the guitar.  The downside is that it doesn't have an effects loop and I end up running a wet/dry setup.  That's a bunch of stuff to haul around and the sound guy normally complains about board inputs, etc.

I'm on a quest to integrate the HRM-50 full time into my worship setup and have played around a bit with some overdrive pedals to use on the clean channel and cover the light OD sounds.  My OCD seems to cover that ground pretty good.  I also am finding that the Ceriatone is very sensitive to how hard you play and attack the strings, so with some work I think I can cover the broad range of tones.  I wish I could try out a HRM-BM as it seems to cover some of the in between tones pretty well but not sure how much of the liquid lead tones you give up on that model.

Just thought I would give you my 2 cents on the HRM50-OTS.  Good luck, and as others have stated, there probably isn't a really bad choice
sean

Very good. Thanks, I have a set of Mullards that I'm itching to try in my HRM-50.
Thanks,
Sean

So I have an HRM-50 OTS built by Nik and team.  Have read a few posts stating that you can directly drop in EL34's and replace the stock 6L6's.  Just want to confirm that is true, swap out tubes, simple bias changes, and then you're good to go?

thanks,
sean

Joe has matured and this is not a good indication of Joe's current tone   It's natural for a 15 year old sharing the stage with Robben Ford to go out with a 'cutting heads' kind of approach filled with energy and wanking

Erwin,
i'd love to get a copy of the schematics as well.
thanks, sounds great.
sean

Has anyone been successful in taking a stock HRM OTS and modding the clean channel closer to BM specs without dramatically changing the OD voicing?  Trying to see how to get more of the bluesy clean channel without losing the character of the HRM OD.
thanks,

You can connect to the send from the OTS and not impact the dry amp sound as long as you don't plug into the return of the loop.  You need to tweak a bit with the settings on the C-Lator to get same levels and transparent sound.  I've had my OTS-HRM50 and C-Lator for a few weeks, and the first step was to connect C-Lator with no effects plugged in and play the game where you connect/disconnect the return to the OTS and get as close as you can to having equal levels, tone, etc.  Then plug effects in and adjust volumes/settings on the effects to maintain the same.  takes a bit of time but can get there.

My HRM50 showed up in 2 days to Scottsdale, AZ 

The Lehle switchers are great.  They are isolated and have a very custom transformer for sonic quality.  In addition the SOG versions have settings to adjust the input levels when both amps are selected at the same time, so you can set it up so the overall volume doesn't jump dramatically when you have both running at the same time.

Or you can invest in an amp switcher like from Lehle, Framptone, or Radial.  they are all high quality and are designed to eliminate any ground loop issues.

Xavi,
it took about 4 weeks for me to get my cab from bob at sourmash.  Still waiting for the HRM50/Dlator from Nik, will post a pic when it's put together.  I am pleased with the cab I ordered from bob.

The head from Nik should come with the mounting hardware.  you can have bob at sourmash pre-drill the holes if you want him to.

If you select a higher impedance on the amp that what you have connected, you don't get efficient power out of the amp, and could damage your output transformer.  If anything, always match things up or worst case connect a speaker load that is higher than what your amp is set for, but never the other way around.  For the other question, the benefits of having 2 cabs over 1 is moving more air.  if you're in a bigger room it's great, if you're in a small space 1 should be ok.