But I also must have an amp that has zero risk of blowing up! My custom speakers not only cost > $10K but have Yamaha JA6681B drivers with irreplaceable diaphragms. Please advise.
I have a couple of 2021B boards from a German DIYer with ultra low noise regulated PS. yes, they are not the most powerful ( I also own several nice 3116 and 3255 boards) but 2021b is seductive in its own way. It will draw you into music because the sound is very unique. No they don't sound similar to 3116 or 3255!
Class D amps have a tendency to sound "rushed" and not pacing quite right at times. 2021b exhibits less of this flaw. Just my 2 cents
Class D amps have a tendency to sound "rushed" and not pacing quite right at times. 2021b exhibits less of this flaw. Just my 2 cents
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Lucky guy! I have had a few Helder TA2020 and they liked to blow up all of a sudden. I have seen it at friends as well when a speaker wire made bad contact. POOFFF! Sensitive stuff compared to TPA3116/3118.
Yes, the one I have is the RED board. The PS I use is https://www.ebay.com/itm/1442806840...zocBevIgOdvQMl6/UQglCp724=|tkp:Bk9SR97zpJG4Yg
IMHO this PS sounds more robust than RED TOP / Yellow Top battery I have been using and just as quiet (pure), and no recharging needed.
IMHO this PS sounds more robust than RED TOP / Yellow Top battery I have been using and just as quiet (pure), and no recharging needed.
Thank you very much! I agree about the sound. I have four of them for a 4-way active XO project sitting at the back of my mind. The PS you post seems very nice but in my case power demand is huge so I'm considering SMPS. No final decisions yet.
I think I must be very lucky. Picked up a Dr. Amp from Ebay a couple of years ago, in unused condition. I'm playing with different Opamps to see what, if any, difference they make. Just switched out the original 5532 for a new LM4562. The amp cost me £25 and is very solidly engineered. It has an original Tripath TA2024, and sounds great straight from a Khadas Tone Board.
Hello,
I have to write that I am still impressed with Tripath technology. I still use Tripath chips, more than 15 years and I can't see any alternative at the moment. Although the results of other manufacturers show better results, I am not convinced.
I've already tried Maxim small chips, Infineon, IR and TI, but unfortunately they don't sound as good. I'm still using TA2021B for my products and slowly my supply is running low, I'm getting desperate 😀. I'm sorry that this is exactly what happened, the big guys pushed Tripath out of the market because someone small can't be as good and they can continue to sell inferior products.
I'm currently using the red pcb because it's really ultimate and works great. I wind the coils by hand on a T60-2 core because it has the best results, very little noise. One manufacturer has 10uH has excellent coils that I will use in my design later.
Open source project for DiyAudio forum with TA2021B, AMP225T link:
https://audiologs.com/AMP225T/AMP225T_project.zip
some open source projects if you want to do it yourself:
TA2021B red board
I have to write that I am still impressed with Tripath technology. I still use Tripath chips, more than 15 years and I can't see any alternative at the moment. Although the results of other manufacturers show better results, I am not convinced.
I've already tried Maxim small chips, Infineon, IR and TI, but unfortunately they don't sound as good. I'm still using TA2021B for my products and slowly my supply is running low, I'm getting desperate 😀. I'm sorry that this is exactly what happened, the big guys pushed Tripath out of the market because someone small can't be as good and they can continue to sell inferior products.
I'm currently using the red pcb because it's really ultimate and works great. I wind the coils by hand on a T60-2 core because it has the best results, very little noise. One manufacturer has 10uH has excellent coils that I will use in my design later.
Open source project for DiyAudio forum with TA2021B, AMP225T link:
https://audiologs.com/AMP225T/AMP225T_project.zip
some open source projects if you want to do it yourself:
TA2021B red board
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I think there was a lot more to it than that. It didn't help that Tripath shot themselves in the foot with some of their products. The TA010xA modules were an absolute flop due how easily they would self-destruct and how expensive they were. It was always the FET drivers that died, but they made the dumb decision to encase them in epoxy and hide the whole circuit in a black box so that it couldn't just be repaired. The TA3020 had similar issues.
It also did not help that Dr Tripathi made quite a few promises he couldn't fulfill ... He was a great engineer, but lousy businessman....
In the end, Wall Street Crucified Tripath...also a bit surprised Cirrus Logic , the company that purchased all IP from Tripath, has done nothing with it.... as far as I see...
I owned quite a few Tripath shares (TRPH) and lost my butt!!
In the end, Wall Street Crucified Tripath...also a bit surprised Cirrus Logic , the company that purchased all IP from Tripath, has done nothing with it.... as far as I see...
I owned quite a few Tripath shares (TRPH) and lost my butt!!
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Very tragic that an amplifier-on a mere chip, no less-with so obviously a beloved and special sound (300B SET tube amp-like??), but which is no longer with us. Was there ever an attempt to clone the amp with discrete circuitry, before those bums at Cirrus Logic destroyed the schematic or locked it away forever?
Very tragic that an amplifier-on a mere chip, no less-with so obviously a beloved and special sound (300B SET tube amp-like??), but which is no longer with us. Was there ever an attempt to clone the amp with discrete circuitry, before those bums from Cirrus Logic destroyed the schematic or locked it away forever?
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