No Such Amplifier?My guess is it's an NSA product
No Such Amplifier?My guess is it's an NSA product
https://en.wikipedia.org/wiki/National_Security_AgencyNo Such Amplifier?
From Wiki: Due to its ultra-secrecy the U.S. intelligence community referred to the NSA as "No Such Agency" and this amplifier is too good to be true so it is "No Such Amplifier". ;-)
Filter link please
Filter link please
Thanks in advance
Enjoy...
Ahhh, gotcha! Touche!From Wiki: Due to its ultra-secrecy the U.S. intelligence community referred to the NSA as "No Such Agency" and this amplifier is too good to be true so it is "No Such Amplifier". ;-)
Did the ferrite cores improve anything too or just the filter board from Amazon? I don't remember seeing the ferrites there before.By the way, I improved the RFI / EMI perturbances on my DrMordor amplifier, just to share the info : seems this filter works great for me )
Ahhh, gotcha! Touche!
Did the ferrite cores improve anything too or just the filter board from Amazon? I don't remember seeing the ferrites there before.
Thank you.Hi,
Got this tip from New Class D Cookbook.
This is a preventive technic to avoid RFI / EMI
https://www.newclassd.com/index.php?page=15&hv=1
New Class D amps are ultra top end Class D modules.
https://www.newclassd.com/index.php?page=313&hv=1
Thank you.
I was asking about the ferrite cores. Do they help with the interference at all?
Thank you.Globally yes, specially when I stream via BT (APTX HD.)
Take a look @ Page 19 of NewClassD cook book (you will see why I put those ferrites).
Thank you.
Are you going to keep all those amps? You seem to buy every one that comes out
Nice.Hi,
Here my quick review about the 3E Audio finished TPA3255 Amplifier after a 3 days listening test.
VS DrMordor Module :
- 3E Audio With OPA1612 sounds great and still have a good sounstage. But it definitely lacks consistency in the sound compared to the Drmordor module. The Drmordor is much more dynamic, more "organic". The bass drops lower and medium + high are better as well. Regarding the soundstage, the amps are equal, it is very precise and we find "the signature of the TPA3255" which remains, to my ears, the most holographic chip on the market. Regarding the quality of the case, and its fan, the 3E Audio is really well made, the fan is pretty noiseless, can't ear it at all.
Another important point, the Drmodor is more powerful at equal volume ... PFFB + best PSU (LLC) on DrMordor make the difference....
VS AIYIMA A04 (black PCB Tilear 2.1 with OPA1656)
- concerning the overall listening, I think that we are rather on amps of the same range, I found the 3E Audio a little less "alive" than my AIYIMA but I think that the OPA1656 are there for something (I did not test the 3E Audio + OPA1656). They perform almost equally but the AIYIMA is using a TPA3251 chip, so it's not necessarily very comparable.
On the other hand, I found the AIYIMA quieter, especially when I stream in BT (APTX HD via my DAC), it is less sensitive to interferences, it does better than Drmodor and 3E Audio in this regard.
Conclusion :
For less than $100, the 3E Audio TPA3255 is good amplifier, well made, well designed and interesting overall.
If you are really looking for the rolls of the TPA3255, go for a Drmodor, a Jlester or even an XRK Audio, we know why we pay more for them)
We do not play in the same class!
Nice.
Do you have the Aiyima A07 too?
I suppose the best test would be all with the same op amp? I bet I couldn't tell the difference between any of them unless I could do A/B.
I have the A04 with the LM op amp they recommended. I don't think I have the black board but I don't have a screw driver that fits the screws they use At any rate, replacing and upgrading stuff is not my forte.The best test would be, same OP Amps / Same chips )
I own The A04 yes and I upgraded the OP Amps and upgraded the inductors as well as below :
I have the A04 with the LM op amp they recommended. I don't think I have the black board but I don't have a screw driver that fits the screws they use At any rate, replacing and upgrading stuff is not my forte.
I was asking if you have the A07 as well.
Hi,
Here my quick review about the 3E Audio finished TPA3255 Amplifier after a 3 days listening test.
VS DrMordor Module :
- 3E Audio With OPA1612 sounds great and still have a good sounstage. But it definitely lacks consistency in the sound compared to the Drmordor module. The Drmordor is much more dynamic, more "organic". The bass drops lower and medium + high are better as well. Regarding the soundstage, the amps are equal, it is very precise and we find "the signature of the TPA3255" which remains, to my ears, the most holographic chip on the market. Regarding the quality of the case, and its fan, the 3E Audio is really well made, the fan is pretty noiseless, can't ear it at all.
Another important point, the Drmodor is more powerful at equal volume ... PFFB + best PSU (LLC) on DrMordor make the difference....
VS AIYIMA A04 (black PCB Tilear 2.1 with OPA1656)
- concerning the overall listening, I think that we are rather on amps of the same range, I found the 3E Audio a little less "alive" than my AIYIMA but I think that the OPA1656 are there for something (I did not test the 3E Audio + OPA1656). They perform almost equally but the AIYIMA is using a TPA3251 chip, so it's not necessarily very comparable.
On the other hand, I found the AIYIMA quieter, especially when I stream in BT (APTX HD via my DAC), it is less sensitive to interferences, it does better than Drmodor and 3E Audio in this regard.
Conclusion :
For less than $100, the 3E Audio TPA3255 is good amplifier, well made, well designed and interesting overall.
If you are really looking for the rolls of the TPA3255, go for a Drmodor, a Jlester or even an XRK Audio, we know why we pay more for them)
We do not play in the same class!
Thank you for your impressions. Did you make a blind test? Did you try the 3E Audio also with the original OP amp?
Sorry just tested it with the OPA1612.... this upgrade is $15 so I did it out of the box.
Test = very well known HD Audio play list, switch between amps even if I know this is not the best method....