How does it sound in comparison to 3e Audio module or Aiyima?You can also check this new model, dual TPA3255 Board :
https://fr.aliexpress.com/item/1005...earchweb0_0,searchweb201602_,searchweb201603_
How does it sound in comparison to 3e Audio module or Aiyima?You can also check this new model, dual TPA3255 Board :
https://fr.aliexpress.com/item/1005...earchweb0_0,searchweb201602_,searchweb201603_
How does it sound in comparison to 3e Audio module or Aiyima?
Thank you.If you are patient, take a look here :
https://www.diyaudio.com/forums/class-d/287470-tpa3255-diy-discussion-design-etc.html
Thank you.
BTW, how do you conduct your listening tests? Is there any sort of A/B element?
Unlike you, I'm not a pro in any way and I also lack the self confidence in my echoic memory when going from one device to another. The only way I would trust myself is if I could switch from one device to the other on the fly, i.e A/B. That doesn't mean any other listening test is useless, it's just more subjective.The problem in this case is that without measurement I necessarily induce a subjectivity ....
On the other hand, I have a bunch of amps including a Pass Aleph pure Class A + MOS120 class AB. I have been a musician for 20 years born of a classical guitarist / harmonica daddy, I rather have a good ear to tell you that this TPA3255 module from DrMordor is a awesome !
The only bad point I see with this amp = it is quite sensitive to interferences (especially if you stream like me in BT APTX HD or LDAC via a high end DAC). I could soon compare it to a very, very high-end amp (Purifi or true GaN, I am still hesitating) At this point I could really tell you if this DrMordor module is a reference amp.
In all for now, it gives me a lot more sensations than my Hypex Ncore double mono or my double mono Pascal
Unlike you, I'm not a pro in any way and I also lack the self confidence in my echoic memory when going from one device to another. The only way I would trust myself is if I could switch from one device to the other on the fly, i.e A/B. That doesn't mean any other listening test is useless, it's just more subjective.
Was curious as the methodology you use in your tests, if you don't mind sharing. e.g Do you play specific tracks, each time with a different amp? Is it all done in one session? etc
Thank you for the great info.I will try to answer with more concrete elements then:
One thing being certain concerning the TPA3255 : it has an enormous potential if the elements surrounding it are carefully chosen. I can already tell you that there will very soon be on the market a new TPA3255 of which I can already share the measurements:
THD + N: 0.00012% / 10 watts @ 20-20Khz (8Ω)
THD + N: 0.001% / 100W watts @ 20-20Khz (8Ω)
SINAD @ 5W 1kHz into 4Ω : 110
So you can compare : https://docs.google.com/spreadsheets/d/1ZlTOYxmPs938gqHjtDABkWS-MApu7uJjzIGnJ2Elm6Y/edit#gid=0
With such measures, I already think I can say that this future module will perform almost as well as a Benchmark AHB2 and that it outperforms the BOSC Gan modules by Orchard Audio.
On the other hand, you are right to say that my approach is too approximate to give me a real idea of the performance of the DrMordor module, I hope to be able to get measures at the beginning of next year. DrMordor is a friend of mine and he's in the process of equipping himself to bring real measures to his job. I also expect a lot from the measures to come.
In the meantime, DrMordor has built his project around the elements recommended by 360 Customs, so he uses the suggested components with a variation in the choice of inductors and the SMPS LLC power supply, which is handcrafted @ 100%. By analogy, you can get an idea of the measurements here ( please consider this approach with reasoning by syllogism) :
https://www.360customs.de/2018/07/tpa3255-tpa3251-tpa3245-final/
Very nice setup. You built that speaker from scratch or it's based in some DIY kit?I fully understand that the human ear and that our brains are limited during listening tests, especially when switching from one amp to another ... However, as I am perfectly familiar with the intricacies of my Playlist and that I 've listened for hours and hours, I can already distinguish without any difficulty between an amp; which reproduces a formidable soundstage and one which is mediocre in this respect. On the other hand I invited three "audiophile" friends to share their impression with me, the opinions were certainly subjective but everyone agreed that the DrMordor module is exceptional in listening.
You re true anyways : let's wait for its creator to provide some measures.
My Equipment :
Double DAC AK4497 with two linear PSU OP Amps 1612 x2 + OP Amps 1656 X2
High end handcraft speakers 2.5 way (100W RMS / 93DB with ribbon Tweeter) about $5000
Playlist / source : The MA Recordings Audiophiliac HiRez Music Sampler 2020, 24 bit recording
For European people only, I am working with DrMordor. If you are looking for high end RTR TPA3255 amplifier, you can send me a private message.
I have tested many many TPA325X amplifiers, see my reviews on DIYaudio, this is the best board I tested.
Spec :
TPA3255 RTR
TDK-Epcos core inductors
OPA LM4562MA
Mains Caps : 6x Epcos Audio Grade
Buffer Caps : Elna Silmic II
400W SMPS LLC PSU integrated (EDT34 core)
RFI filter.
Output filter caps : TDK / WIMA
PBTL / PBL mode (full balanced / balanced)
Very nice setup. You built that speaker from scratch or it's based in some DIY kit?
Do you have a list of the amps by preference? We already know your #1, so #2, #3 etc.
Hi daniboun,
The TICORE260BTL referred to in https://www.audiosciencereview.com/...tpa3255-amp-do-you-recommend.9148/post-556099 looks quite compelling.
It has a "voltage gain" of "10.9"
If "10.9" was the voltage ratio, this would correspond to voltage gain of 20.7 dB, if I understand it correctly. But perhaps they mean "10.9 dB".
In any case, how would I match the amp with subwoofer amp modules that have gains of 26 dB or 28 dB, for example?
Attenuate the sw modules gain in the DSP (miniDSP, for example) accordingly?
What sort of interferences?The only bad point I see with this amp = it is quite sensitive to interferences (especially if you stream like me in BT APTX HD or LDAC via a high end DAC).
What sort of interferences?
I have the A04. When I first set it up I had a cordless phone stationed close to the RCA coax side (right) of the A04, and that was a much more noticeable buzz. It went away if I moved it to the speaker wire side (left) and/or if I dialed the pot all the way.When I connect the Bluetooth from my LG V30 > DAC AK4497 > Drmordor amp, I can ear some some disturbance into my speakers. (not during music)
I guess it is a radio-frequency interference or Electromagnetic interference. No issues to report via cables.
With my AIYIMA TPA3251, absolutely nothing to complain with, 0 disturbance....
I have the A04. When I first set it up I had a cordless phone stationed close to the RCA coax side (right) of the A04, and that was a much more noticeable buzz. It went away if I moved it to the speaker wire side (left) and/or if I dialed the pot all the way.
I then moved the cordless phone which removed the buzz, but If I press my ear very close to the speaker I can hear a tiny bit of hiss. I didn't try that when the speaker was running through the AVR, so that might be normal. There is a little bit more hiss if it's closer to the wall closer to other the electronics and cables underneath.
I'm too much of a newbie to understand the cause. Maybe I need better shielded coax cables? or could it be related to some internal components?
I see. Well, I'm not a DIYer and didn't replace any parts like to did. You think this could be down to cable or whatever parts are inside the box on the right side? I'm using a pair of old interconnects I had laying around. They seem to be Monster Cable Interlink 400. It's really a very minor issue, but if I can fix it that would be great. I'd love to put the useless cordless phone back thereIn my case, both amps are practically in the same position, finally one above the DAC the other on the right ... when I say that the AIYIMA is absolutely silent, even in bluetooth mode I mean : absolutely dead silence even with your ears glued to the speakers....
I see. Well, I'm not a DIYer and didn't replace any parts like to did. You think this could be down to cable or whatever parts are inside the box on the right side? I'm using a pair of old interconnects I had laying around. They seem to be Monster Cable Interlink 400. It's really a very minor issue, but if I can fix it that would be great. I'd love to put the useless cordless phone back there