As far as "shoot-thru" goes, remember that these currents are affected by two sets of L/C filters. At idle, these currents are down 40dB. At full load, more like 20dB. There is very little energy and nearly all of it is dissipated in the inductors.
By the way, these are not SMT inductors, they are simply wound on shielded cores.
Yes, upon rereading my post, I realized that 'shoot thru' is not a large problem. This is why I edited out that comment over 3 hours prior to your responding... (You can look at the timestamp of my editing and your post for verification). If you get interrupted while composing a reply, or if it truly take you 3+ hours to write a response, I'd suggest you use the 'preview' button to view your response and see the current state of prior posts,
Yes, the zobels are compromised somewhat, but they are only there to damp peaking in main filter when there is no load attached.
I don't understand your comment that the Zoebels would be compromised. Specifically, the paralelled Zoebels, when driving a 4 ohm load are going to have the same characteristic as the unparalelled Zoebel when driving an 8 ohm loads. Likewise, the paralelled Zoebel will exhibt twice the attenuation when driving an 8 ohm load. Tripath does an excellent job with regards to output stability. (Nor is the sole role of a Zoebel to provide stability when no load is attached)
My guess is that the readers of this august forum know enough not to turn on ANY solid-state amplifier without a load attached. If not, you know now.
Piffle... your statement is so off base that I'll go so far as to say BALDERDASH!!! I believe that very few of the 'readers of this august forum' are from the BIZZARRO dimension. I know of no commercial designs, nor any competent DIY efforts that would exhibit instability with no load attached. Didn't you just post that Zoebels addressed that issue?
As far reporting on my progress, I can tell you that I've been running two different Tripath amps (the 1101 and an earlier version of the 2050) in this sort of paralled configuration for just over three years with no problems.
I've no doubt that you find your mod superlative. From your perspective the increased power and drive capability might well outweigh the increased noise and distortion over that of the standard stereo implementation.
Reading the datasheet and understanding the recommended circuit is good advice, and I recommend that to anyone considering modifying their amps. Blindly following the advice of anyone without understanding the basics of what you're doing is rarely a good idea, and I'd say this is applies especially well in this forum, where you have 137 different people telling you that they have the world's finest power cord.
Indeed, understanding the datasheet is quite important, and that extends to the equations presented. If one lacks the discipline/background to do so analytically, you just need to get a calculator and work out a few examples numerically to understand the implications of various mods. But the backgrounds and experience of the posters on this board vary tremendously; nor is it a sin to not be quantitatively oriented. But if someone comes to these boards and in their first post states -
"I have some experience with the Tripath parts and can offer some advice to those interested in modding theTeac amp........"
that person is clearly stating they can 'talk the talk'. When that person goes on to make comments, suggestions, responses. etc.... It is not unreasonable for their 'product' be evaluated by whatever metric the individual reader uses to evaluate whether that person can also 'walk the walk'.
And Occam, I'll read the datasheet again if you promise me you'll make a serious effort to go out and get laid.
Sadly, I think no matter how many times you reread the datasheet, for whatever reasons, you will not apply the discipline to understand the importance and usefulness of quantitative techniques.
Nor does the character shown by saying the above from the anonymity of a keyboard surprise me. What else should I expect from someone who 'a priori' discredits all other posters with -
"...I'd say this is applies especially well in this forum, where you have 137 different people telling you that they have the world's finest power cord."
Why in heavens name are you bringing up powercords? What about powercords puts your knickers in such a twist? Has my reccomendation of the $6 Volex in other threads caused you pain and suffering? Did you actually count 137 different people discussing the worlds finest powercord? If so, I suggest that you might better spend your time relearning high school algebra.
Warmest regards.
Occam
