Got theese babies because of the rave review from the YouTuber HiFi Zone who has reviewed many amps of all types.
His where the ready made ones that are fed by an external supply.
These boards here are identical except for the bridge rectifier on them.
Even in stock form they sound better than my Ayima 3255 that has the OPA1656 and other mods that where suggested in the Ayima thread. I will see where some discreete opamps and some other needed changes will get me.
They are configured as SE but one bridge will make them fully balanced, which I always found to be markedly better on all these TPA and Merus boards.
His where the ready made ones that are fed by an external supply.
These boards here are identical except for the bridge rectifier on them.
Even in stock form they sound better than my Ayima 3255 that has the OPA1656 and other mods that where suggested in the Ayima thread. I will see where some discreete opamps and some other needed changes will get me.
They are configured as SE but one bridge will make them fully balanced, which I always found to be markedly better on all these TPA and Merus boards.
They do have fully balanced inputs.
You just have to bridge these two pads with a zero ohm resistor or with a wire
https://a.aliexpress.com/_EvAFtSN
You just have to bridge these two pads with a zero ohm resistor or with a wire
https://a.aliexpress.com/_EvAFtSN
Thank you!
They write to just fold the 1002 R 90°, OK.
Then you get an XLR input option and nicely sized coils, which is nice.
The 50 V caps on the other hand are less great, and the provider recommends a maximum voltage of 31V. That's a little irritating.It doesn't have to be 48V, but if 36 volts seems to be higher than recommended... that won't work out for me.
Please, why no 63V voltage rating? Too bad!
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Not a deal breaker for me as I usually chance the caps to my preferred once anyway.
I never needed an amp that had more than 50 Watts.
I only got about 8 hours on the units and I'm mighty impressed.
I will report back when I pass the 100 hour mark.
Here is the review from Hifi Zone for those who are interested:
.https://youtu.be/ckNVghwryKI?si=CZFnlHyHrCeYHzLl
I never needed an amp that had more than 50 Watts.
I only got about 8 hours on the units and I'm mighty impressed.
I will report back when I pass the 100 hour mark.
Here is the review from Hifi Zone for those who are interested:
.https://youtu.be/ckNVghwryKI?si=CZFnlHyHrCeYHzLl
Thanks. I saw it, it#s more a subjectiv product show than a useful critical review and then straight jumping to OpAmp swap fetish. Ah ...
What do you expect when it comes to evaluating the sound of components?
I bought most of my amp boards because of multiple subjective reviews pointing in one direction.
This is diy audio we are not content with a piece of gear in stock form.
All I know is that these boards sound really good in stock form and I am glad that Hifi Zone has given us his subjective review.
Klaus
Btw, I deleted the post because it was not about the Zero Zone amps with the TPA3255 but a different one.
I bought most of my amp boards because of multiple subjective reviews pointing in one direction.
This is diy audio we are not content with a piece of gear in stock form.
All I know is that these boards sound really good in stock form and I am glad that Hifi Zone has given us his subjective review.
Klaus
Btw, I deleted the post because it was not about the Zero Zone amps with the TPA3255 but a different one.
OK, I checked them twice 😉
The board is powered by classic AC transformer, then it's voltage is fine!
Back on the list 🙂
The board is powered by classic AC transformer, then it's voltage is fine!
Back on the list 🙂
Hi Radian! You must have a good collection...🙂
Do you have any comparisons....Different feelings...
TI or INFINEON? (without cognitive bias...yes it's fashionable..🤣)
