I am amazed to see that my comments caused such a sensation here. I am sorry if my words were thoughtless. I think I was too impatient about my new toy. I should have waited and seen how it grows at least using it for a year or so. Just like my Fender 65 Twin Reverb or Deluxe Reverb, I was expecting this Ceriatone stuff as a"ready to go" style amp. But I was wrong This one has so many switches and the control knobs that becomes many many factors to change the sound and they make sound making very complicated. Adding to that, I got to think of C-lator's settings, too. I am going take a deep breath and just have fun playing and puzzling with them.

By the way, does anyone know which position is this amps' flat tone setting? For example, Twin Reverb's is that Bass 0, mid 10, Treble 0. I wonder what's for HRM...

I am going to make my HRM BM debut at a live gig this weekend, I hope it will work fine there.

>Bluesfendermanblues

Thank you for your advice. I had ordered Sovtek 12AX7WA and JJ EC803S 3 each right after I wrote the previous one. I am just curious to know how the sound will change with those little things. I will try your recommended preamp-tubes, too.

>plasticvonaband
Thank you for letting me know about the SAG switch and other detailed useful information about sound making, and also nice comment about my English   I feel like taking off to a long journey to find the better tone...


General thoughts:
I am just wondering one thing...  It seem like many people are having the same problems or dissatisfaction about this amp's tone, and they are struggling to get better sound changing tubes or other little parts. Then, "Why Can't they make better tone or simply easy to operate amps?"  I am a musician, not an engineer

Hello plasticvonaband,
This is first time for me to write here. I am not a native English speaker, so, sorry for my poor English. I don't know much about amps' technologies, either.
I also purchased HRM Blues master 50W model in last November, and I have been having the same problems you had and dissatisfaction about this amp. Too much bass and dull treble, flat and not sexy tones (not like Fender amps), and harsh overdrive sound (it's not creamy at all as I expected for the D-style amps).

I read your topic and knew that you made your amp's normal sounds better changing the preamp-tubes to SOVTEK 12AX7WA. Were you able to get a better overdrive sound by that arragement, too?
One thing I didn't understand was that what the SAG switch was. I asked them to install 1/2 power switch and PI Trimmer, and it has OD trimmer, too. But it seems like SAG switch is the different thing. Is that a special one you only have or all HRM bluesmaster has somewhere inside?

Anyway, I am going to start changing the preamp-tubes. I hope that it will work well to me, too