Hi
I'm no expert, but I can tell you the kleinulator makes a world of difference. Like you, I think the od sounds harsh without it. It realy allows you to get these dark creamy dumbly tones.
The only downside is that it also darkens the clean channel, so it's a bit of a challenge to find a good balance (I haven't touched the internal trimmers though)

Hey
Thanks for taking the time to answer.

I found a used HRM for a very good price just before ordering from Nik.
I have very little information about it, I'm the third owner and the previous owner had no clue what it was. The only mods I've noticed is a push pull on the overdrive level, which sounds like a bright switch for the od channel. I just noticed a little togle switch behin the back plate, between two preamp tubes, I don't know what it does.

I might have the hrm defeat mod done one day, but it's already a very versatile amp.
I get all the cream I need, the kleinulator makes a world of difference here.
Great great amp!
Sorry I can't help you with your question
Cheers
Mat

Ok thanks for your reply

Hi everyone
I'm about to order my first ceriatone amp and I'm really excited!

That said I'm torn between the hrm and non-hrm versions.
From the clips I seem to like non-hrm better.
But I also like the flexibility of the hrm...

So Nik offered to install a HRM defeat switch.
Can anyone tell me how close the HRM with defeat switch on will get to the non-hrm?
Will I still get the creamy tones associated to OTS?

Thanks for your help
Cheers