Is the Berning ZH270 revalatory?

I have just checked back in to see whether my inquiry received any replies and at first was pleased to see that it had and then dismayed to see that I had generated some unintentional discord. I take full responsibility for mentioning the name of the person from whom I acquired the amp. My zeal for the amp extends to the person who built it and the person who sold it to me. Neither suggested to me that I query other users about their long-term satisfaction. All of us in this hobby like to verify their judgments against the discernment of others, and I derive further pleasure from acknowledging the decency of the many people for whom the hobby is both passion and profession.
But again, if I breached the protocol of this forum, mea culpa.
Mark

Question for Allan and ZH270 owners.

What are the mods for the Berning that are referred to in this thread?

And I think I recall that tube rolling with NOS tubes can produce terrific results with the 270. Could someone elaborate.

The reason I asked these questions is it seems that I remember reading somewhere that the Berning in stock form can sound a little analytical, but with tube rolling this characteristic can be changed to a slightly warmer "tubier" sound.

Thanks in advance.

Mark.
You have not breached any protocol, this is exactly what the forums were intended for, you used it to find other owners and generate discussion, I actually applaud you Sir.

Allan is right, no protocol has been breached. Enjoy the amp. It's as good as everyone says it is.

I don't post very often since I'm still in "learning mode" compared to many of the folks here and there experience but, I thought I'd toss my $.02 worth. Received my Berning ZH270 last week, which I bought thru Allan. First, let me say that what Allan told me about this amp is definitely true. In fairness I can only compare it to the amp I've been living with, ML#23 since I don't live close to any high-end shops anymore. See my system, General Disarray under the Virtual Systems, Ever Evolving, and some nice pics of the amp.

I made some comments after I replaced the input tubes and switched to medium feedback. This made a tremendous change, just as Allan and other owners have said. An analogy would be like the change after I "chipped" the computer in my turbo Audi. Went from good performance to spooled up scary fast...

The amp has maybe 50 hours on it since I've been listening to it almost non-stop. I have to say the Tandberg 3001 tuner sounds absolutely fabulous compared to the CAL CD player. I don't have my analog rig set up yet so I'm at a disadvantage to what the amp really sounds like but after the tube changes and feedback fiddling it's really great.

If you own a ZH270 this is probably a boring post, you already know this, sorry. If you're shopping for an amp you really need to do yourself a favor and seek out a friend with one. I'm in NY, come on over and test drive it. I’m sure there are better amps made but you’re more than likely going to be spending more than $4500 for it, maybe double or triple and you definitely won’t be buying the technology that’s in this amp. This thing operates more like an FM transmitter. I’ve been around electronics my entire working career, (started out on IBM 370 mainframes) this is as complex and sophisticated piece of hardware as I’ve ever seen. Pretty cool actually, that’s why the first thing I did was take the cover off and takes pictures and post in my system. Since only 24 are made every year you might want to think about getting one while David is still making them. Kind of like Blue Note LP’s, these won’t be made forever….