Or they were lucky ?
Most veteran musicians i know/met are deaf as a bat.
My +40 year in the pro biz cousin learned to hear himself again a couple of years ago, don't know the details. At an aunt's funeral meeting last monday he said he had one year to go till retirement, still seemed deaf as a bat to me.
the Bat has one of the best ears in the natural world thats usable range extends from 1kHz->150kHz, far more usable range than us and EXCELLENT echo location, in fact it is how they navigate at speed. now if you were to say 'blind as a Bat' then this would be more traditional.
just sayin
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on all the "pricing" discussion, here's my view:
things are inherently worth nothing if you're not interested. If you are, you have a price, namely a number you want to give for it. What that is, is completely virtual and has nothing to do with reality. If you DIY, you buy components... for A LOT of money, since you can get it all A LOT cheaper if you buy 1.000.000 transistors... but you don't so for you it's worth $2.
That's so for EVERYTHING. a man with no legs wouldn't even give $1 for a pair of running shoes. Someone not interested in music AT ALL wouldn't give $5 for a portable radio, so for him, it's too expensive. For others, it's worth $10. If it sels for $8, then you'll sell some, because "more people" will say: hey, for that price, i want one. Double it, and the only difference is: less people will buy it
It's all a matter of balance, nothing more.
If i tell my gf (who is not interested in music at all) that i want to spend $2k on speakers, she says: it's not worth it... but for me it is... so for me, there are speakers that are worth $2k, even though it's just wood, paper and some copper and other materials abundant in nature. For me, if they sound like they are worth $2k , then i'll buy them, if i think, i can get better for the price, then i'll buy others.
So in the end, price is very subjective and does have NOTHING to do with real value, because value is subjective too. for me, $2k in money is worth less then speakers, so i'll trade that... because i think it's a good bargain.
Amps cost what they cost, you can say: i don't think it's worth it, then don't buy it. When others say: wow, i'd definately give that amount for it, then for them, it IS worth it. And noone can tell you that you paid too much... because for you, it's worth it, for others not PERIOD
things are inherently worth nothing if you're not interested. If you are, you have a price, namely a number you want to give for it. What that is, is completely virtual and has nothing to do with reality. If you DIY, you buy components... for A LOT of money, since you can get it all A LOT cheaper if you buy 1.000.000 transistors... but you don't so for you it's worth $2.
That's so for EVERYTHING. a man with no legs wouldn't even give $1 for a pair of running shoes. Someone not interested in music AT ALL wouldn't give $5 for a portable radio, so for him, it's too expensive. For others, it's worth $10. If it sels for $8, then you'll sell some, because "more people" will say: hey, for that price, i want one. Double it, and the only difference is: less people will buy it
It's all a matter of balance, nothing more.
If i tell my gf (who is not interested in music at all) that i want to spend $2k on speakers, she says: it's not worth it... but for me it is... so for me, there are speakers that are worth $2k, even though it's just wood, paper and some copper and other materials abundant in nature. For me, if they sound like they are worth $2k , then i'll buy them, if i think, i can get better for the price, then i'll buy others.
So in the end, price is very subjective and does have NOTHING to do with real value, because value is subjective too. for me, $2k in money is worth less then speakers, so i'll trade that... because i think it's a good bargain.
Amps cost what they cost, you can say: i don't think it's worth it, then don't buy it. When others say: wow, i'd definately give that amount for it, then for them, it IS worth it. And noone can tell you that you paid too much... because for you, it's worth it, for others not PERIOD
Thats, what happened to TBP-zero with Crable, he soon feels that the amp not worth that much. And that is happened to others, so TBP could offer something like 50% or more cash back warranty agreement each transaction for getting a better market. Their amplifier problem is not hard to solve.
So, what is in your mind that soulution should do to gather their market better?
So, what is in your mind that soulution should do to gather their market better?
Thats your amp problem, you have found it.
Audio is more of a hobby than anything else, I dont make my living from it and I refrain from being too involved in what I consider a very difficult market dominated by audiophoolish poets.s. Investing works good for me as it enables me to gain access to measuring equipment, parts and I like to throw some ideas at design. Maybe a little before retirement I will give it a try fulltime but only if I have a healthy bank account.
The little info I have is what the members have brought forward here, interesting concepts. You can however view the outputstage patent via a japanese patent search, Stinius has provided the patent number and the site has translating service.
The most confusing part is no feedback but voltage stages dont use emitter resistors either (degeneration), this is impossible with SS, I wont comment on tubes as I dont have experience with them.
Tommy youre are very resourcefull,
I was wrong though it might just be possible, my head is too stuck on BJT,s Im sure Wahab or Ontoaba will have it simmed in a couple of days and have some idea of what it can do.
" ... he made it possible to eliminate emitter resistors by developing an original duplex
temperature compensation circuit (patented in Japan)."
I saw somewhere possible solution how to avoid the emitter resistors, it was based on using a power transistor, same as those in output stage, located just near output transistor. Such a transistor acts as a sensor and affects output stage idle current.
temperature compensation circuit (patented in Japan)."
I saw somewhere possible solution how to avoid the emitter resistors, it was based on using a power transistor, same as those in output stage, located just near output transistor. Such a transistor acts as a sensor and affects output stage idle current.
Or they were lucky ?
Most veteran musicians i know/met are deaf as a bat.
My +40 year in the pro biz cousin learned to hear himself again a couple of years ago, don't know the details. At an aunt's funeral meeting last monday he said he had one year to go till retirement, still seemed deaf as a bat to me.
Hmmmmmmmm - last time I checked bats had very good hearing - in fact their hearing is what they rely upon for navigation and is quite capable at detecting a flying bug a some great distance. They don't see so well tho. Big smooch jacco!!!
Forgot about bat! old man is just fair to do that mistake.
SEE THIS!!!
The claim of no emitter resistance is just fakes, it still work fine with RE. He uses long cables to make some fake RE, so RE is still there.
THIS patent is about non switching mechanism. Using BTL, and feedback is the key to reach low distortions.
Someone that interested in non switching will also interested in this.
SEE THIS!!!
The claim of no emitter resistance is just fakes, it still work fine with RE. He uses long cables to make some fake RE, so RE is still there.
THIS patent is about non switching mechanism. Using BTL, and feedback is the key to reach low distortions.
Someone that interested in non switching will also interested in this.
Attachments
Tommy youre are very resourcefull,
I was wrong though it might just be possible, my head is too stuck on BJT,s Im sure Wahab or Ontoaba will have it simmed in a couple of days and have some idea of what it can do.
Thanks!
Thanks for the schematic, If you try to design one similar, just don't place zobel far away like in original TPB-zero, it at least using 40dB NFB that placing zobel like that is dangerous, use some Re instead of long cable.
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