Ohm Walsh 2000 vs MMG vs Vandersteen 2ce Sig?

"Are these the same brands or have they come a long way since the 90's?"

Same brands. Similar designs.

OHM has evolved since the 90's to keep competitive and retain appeal. They have been sold direct only now since some time in the EARLY TO MID 90's I believe and also still provide support and upgrade paths including trade-ins for every speaker they have ever made over their 40 year or so existence, which is rare.

Can't speak for Bose other than its fair to say they have diversified and do a lot more than just make speakers.

Some people prefered the older OHM's with real Walsh drivers to the newer versions.

Unfortunately, the earliest "pure" Walsh designs (models A & F) are no longer serviced by Ohm. They have made adapters for their newer "cans" to be mounted on the old cabinets, but that doesn't yield a very similar speaker.
I'm still wondering why it seems people here are comparing $599 Magnepans to $2500 dynamic speakers. Wouldn't it be more fair to compare models of similar price? Ohm's least expensive floor standing model is twice that much! ...and that's Factory Direct price! Magnepans will always be somewhat limited in dynamics compared to cone speakers with cabinets. Just like any other panel, their dynamics is a direct factor of area, and with such limited excursion, even a huge panel is going to "run out of wind" (making them sound "compressed") at very high peaks. My Tympani had over 16sqft of area per side, and even they had limits, but those limits were Very high... higher than I needed, so effectively for me just fine. My local Magnepan dealer happens to carry Vandersteen as well, that's where I've heard the 2ci most, and I've listened in on straight "shoot outs between MG20s, and Vandersteen 4s, and in that "living room" sized listening room, I don't think impact, nor dynamics were a limiting factor with either one! FWIW, The customer was an uncle of mine, and he ended up buying Vandersteen Quatros - he LOVES them.
Like I said before, I'm a big fan of the whole line of Walsh speakers, but I do think it's important that you consider competitive models, not just brand vs brand.

...also, to clarify my comment about Ohm's dynamic limit. I simply found the sound Quality suffered a bit (particularly in integration between mids & highs) at their highest levels. I don't think they are particularly "fragile", or likely to "melt down", and as long as you choose a model that will play in the volume range you find necessary, it isn't of too much concern.

Cliff

Models "A" and "F" are the benchmark Ohm products.

Everything else pales in comparison.

AF,

Have you heard both properly refurbished Fs say and latest OHM X000 line to compare?

If so, I would be very interested in your assessment.

Also if you have heard Dale Harder's modern takes on the A or F for comparison? These are priced not too far beyond the most expensive current OHMs, although I believe Dale Harder runs a very new and not well known operation.