Bob Latino wrote:To rjpjnk > Rich - Your amp is about a year old and is probably well broken in. I did remember that you did not have cap upgrades with your amp. If you want to post here your thoughts on any comparison between the two amps, you are welcome to do so. Question > You probably did buy the ST-70X at their promotional $1499 price. Would you have purchased this amp if it was priced at $2999 ?
Hi Bob, I added the Russian K40Y-9 PIO interstage capacitors later. Also upgraded the 4 big electrolytics on the board to 100uf if I recall correctly, and installed stepped attenuator and that really nice lucite cover you offer as well. Here is a picture from a several months back. I am so proud of how this amp turned out. It was a ton of fun to build and your instructions were perfectly clear. Thanks for this awesome kit!
Yes, I bought the new ST-70 Series 3 while they were 1499. It kept tempting me for months at that bargain price and I knew one day it would disappear, maybe forever. I eventually caved and decided I had to try it. No, I would not have bought it at 2999.
Thanks you for inviting my review comments here. One day I may put together a detailed comparison. For now I will just say that both amps sound excellent, and are actually much more similar than they are different sonically.
One thing I did notice is I prefer the sound, (with either amp), using the JJ E34L tubes that came with the Series 3 rather than the reissued Mullards I had in the VTA. Unfortunately, I don't have 8 matching output tubes to equal the playing field so I have had to swap back and forth. Even with the tubes swapped I still notice the above mentioned differences in the sound between the amps, but to a lesser degree.
One clear advantage of the VTA is price, and the experience of building your own amp is very rewarding and hard to put a value on. Also, the upgradability and online support for the DIY route makes for years of adventure. On the other hand, the new Dynaco has some serious good looks (again completely subjective I suppose).
Here is my VTA with the PIOs in place. So pretty I hate to cover it up