I broke mine in by running is through an old stereo that has the positive and negative terminals on the back for probably about 25 hours. I wouldn't hook it up to the amp, just the speaker (mainly cause I wouldn't wanna run the amp for that long). It was a mix of some dynamic songs, types of noise (brown, white, pink etc) and then some different frequency tones (1hz etc).

Before I did that it was so brittle that it would hurt your ears when playing and I couldn't dial those highs out. So break the speaker in as much as you can and also play it cause it'll take a bit to dial and get used to what the controls do, although it isn't overly complicated to use, just unconventional.

Yep I have a Kleinulator. I won't get a chance to test anything until next week though. Looking forward to getting stuck into it.

Thanks. Don't worry, I have read it a few times and consulted with Nik. I'm not just here complaining without having tried anything to fix it. I'll let you know once I've messed with the tubes and bias.

Nope but will do. Where's the adjustment pot?

Well the knobs are pretty much volume on 12, master volume about 11/12 - just where I can get the best compromise between clean and loud. EQ is all knobs at 12. Speaker is a WGS ET-65 and the tubes are the ones Nik puts in there (JJs?). Amp is 50 watt standard HRM. My definition of clean is that there is no break up. A comparison would be my previous amp, a DRRI. When it gets to about 4 it starts to break up with a Jensen C12K. Having it on three was more than enough volume and it didn't break up, but the HRM does so at the equivalent of about 2 on the DRRI. My main guitar is just a Strat with Texas Specials (and a HB in the bridge). Yes they're hot, but no problems with the DRRI.

I've had 4 tube amps (out of 5 total). I've changed tubes heaps of times. The squeal is feedback. I've never experienced anything like it. It could well be a tube, but I'll have to change them out when I get a chance. I'll do some clips asap and post the settings. Maybe I am expecting too much, but I can't use it un-miced and that is disappointing so hopefully it is a tube.

Thanks for the replies. I am definitely getting a better tone with it now but still having headroom issues. I don't know if something is wrong or if I expect too much but hopefully I can sort it out. Apparently it is supposed to be very loud and clean but mine isn't.

Btw does anyone else have this problem where you are playing something with the drive up high and then stop, and it continues to have a high pitched squeal, and the only way to stop it is to turn the OD channel level down - turning the guitar volume down doesn't do anything. It doesn't happen all the time but it's annoying at gigs because it makes me sound unprofessional.

I gigged with it last weekend at an outdoor venue so I had it cranked pretty high. I guess I must have had pretty high expectations due to all the hype. Granted I didn't have much chance to dial and it wasn't broken in. Not saying I hate it. I definitely like it and the sustain and articulation on notes compared to other amps I've tried is great. Really good overdrive but the other guitarist's Marshall combo was just as good in the mix (but obviously a different sound). Although the overdrive is a lot treblier than what I'm used to but that might just be an unbroken in speaker. I had a hard time dialling that out.

I had some major problems with the clean though. To get it to the same level as the OD channel I had to turn the volume and master volumes high and it sounded so bad - like I had a slow tremolo or something on. I eventually got something useful by dialling back the volumes but I don't think the clean channel can keep up with the OD at all.

Sorry to be so negative. I probably just need more time with it but please share any hints you have.

I got mine a week ago. I'm happy but not thrilled. My previous amp was a DRRI. The cleans on the DRRI are definitely better, but the HRM comes close in some aspects.

As for overdrive, I like how chords are crunchy and single notes are smooth. To me it sounds very similar to my DRRI with a few good pedals, but smoother and better note articulation. I imagine it as how the Blackface overdrive should be but isn't.

Overall I'm happy but didn't expect it to be as similar to my other amp as it is (yes I realise it is based on the same circuit to some extent).

PS. I don't really see how it is that versatile. It can do rock and blues easily but I don't see how it's different in that respect to other 2 channel amps.

I forgot to add that at the gig, there was something seriously weird going on with the clean tone. It sounded like there was something very wrong with it. Turning off the mid boost did help a little though. It was out doors so I cranked it a bit but really not that loud - probably about the same volume as my DRRI at about 3 1/2.

I only got it the other day and have noticed a few things related to build quality. A couple of the knobs are sudden ie. between 1 and 0 there is no volume, but very suddenly comes up when you get to 1. Also my volume knob on the left (the bright pull push pot) is as if it's a bit loose. It's hard to explain, but when I turn it there is a little bit of give so that the knob turns before the pot actually turns.

Tried it at a gig the other day. Noticed that when I turn the amp off, it actually fires back on for a second then fades out. Also, whenever I changed channels towards the end of the gig, it was doing weird things like going silent for a few seconds and stuff like that.

Is this stuff normal?

It'll probably be pretty expensive to add all that but it's a cool idea. I am still waiting on mine. The only mod I got though is the gain trim pot thing put externally. Cost $20 I think.

Cool thanks. How was his playing?

Btw, how do you like the ET-65s with the HRM? I have a 1x12 HRM combo on the way and am thinking I'll get one. Worth getting the Celestion or EV?

Vids of the guy playing?

I'm going to being using it live so I won't have time to mess with the EQ between songs and it's annoying having to change the levels. So what was the result of your tweaking? That it didn't really matter? What about the inherent difference between clean and overdrive EQs ie. mid scoop vs lots of mids?

I think I definitely prefer the OTS overdrive. Do you notice that much difference between yours? Isn't there a mod to give you a switch to bypass the tonestack so you can get the same OD as the OTS? Though I guess the master volume and internal EQ won't work if you bypass it...

Do you find you have to change the EQ between clean and OD. How does the HrpRM clean compare to the non?