Geofstro points out something quite valid - how much does one have to invest in digital amps, modding included, to generate REALLY impressive sound.
Well, if you have read the thread in Critics Circle, a few fellow Circle friends had a get together, and put two modded Carver Pro amps, against an ARC tube amp. I was impressed that the Carvers held their own, and wanted more info, so I asked for a price comparison. Here is the skinny.
"A stock Carver ZR-1600 amplifier on the used market ranges from about $400.00 to $800.00. New is from about $900.00 to $1100.00. The RAM mod is currently $1600.00 and the EA mod is $1500.00. The ARC VT200 ranges from about $3500.00 to $7000.00 used. New is from about $9000 to $12,000." was the response.
So, we have two digital amps, each street priced around US$1000 new, and bearing around US$1500 of mods, by a couple of respected places. They hold their own, admittedly in very different ways, against a tube amp that runs somewhere around US$10,000.
Extrapolating out of that, it is clear that, in some ways, a modded digital amp punches around 400% above the cost of comparable tube gear.
Now, this is simply one instance, and I am sure that different configurations and modifications will yield different results, but it is a starting point.
In my case, an amp that MSRP'ed out at around US$300 (before being dramatically discounted to US$99 I admit) that ousted my 10 year companion Sugden, that originally MSRP's in the US$1000 range.
I will leave Wayne to comment on the cost of the mods that he will offer to the Teac, but I sold my Sugden on the basis of the stock Teac sound - to me, it is that good. In fact, my best friend who originally jumped at the opportunity to buy that Sugden, ended up backing out, after listening to the Teac. He is waiting in the wings, to hear the Bolder unit, when it returns, so he can plan his system out.
All in all, there are some great sounds available at previously laughable prices.
SWG255 points out something excellent - will manufacturers adopt the small, cheap, cool running, excellent sounding amps for use in active speakers? I would give them a listen certainly.
Mark in Canada