Bill, can you comment on the mod for the JD3000's?? What's it do to the overall sound. How much is the mod if you already own a pair?
Good question Darth. In fact, I will also post this reply on my website.
The JD3000 mono blocs are obviously exceptional amplifiers even without being touched. My goal with these units was to maintain the seductive, emotionally involving presentation these units already exhibit with their 211 tubes while enhancing and bringing to the surface more of the potential hiding deep within. Just as with any of our modifications.
I wanted to bring out a bit more resolution, inner detail and transparency without effecting the txture of these amps and also even more dynamic control. The lower bass becomes more dynamic with some changes to the power supply filter capacitors. I have replaced all these pieces with the same higher capacitance / lower ESR units I now use in all my Jolida custom mods.
I am still in the evaluation process of these units and don't want to comment or quote mod pricing prematurely but can say I am very pleased with them thus far. I have only about 10 hours on them and need to put in at least 400 hours due to the Teflon coupling capacitors. I actually used SoniCap Platinums in this first pair and still want to compare with the V-Caps after this evaluation is complete.
I am also playing with different preamps to pair up with them with the Ming-Da Reference being the best so far to bring out the utmost potential. I also have a few other Ming-Da and ASL preamps that I am custom building for customers that I will throw into this system as I complete them.
If you haven't already looked over the mods for the 3000's, feel free to do so at my website. (The 3000 preamp is going to the back burner).
Keep in touch with any further questions, comments or concerns you may have.