If I had a 4 ohm speaker load, I would choose 36V. If the load was 8 ohm ohm, 48V may be a better choice.
You should take a look at the Shui yuan TPA3255 module I reviewed that is an excellent alternative to the Aiyima or 3E Audio modules. You don't have to worry about supporting a voltage of 48V (no overheating), great for DIY modifications, and its compactness is super interesting! The stock module is equipped with full Nichicon caps and some DIP8 OP amps.
Hi amigos,
I made up my mind to leave a copy of my Shui Yuan TPA3255 + my Jlester TPA3255 amp to an Audiophile friend. I wanted to have an opinion other than mine regarding this new module.
His setup :
Atoll HD100 preamp tweaked version
Cabasse Sloop M2 speakers (94,5DB / 100W)
Source : Chromecast (flac Playlist)
optical cable connection
My setup :
Double DAC AK4497 with OPA1656 / OPA1611
High end 2.5 Floor Speakers with Ribbon Tweeter (93DB / 100W RMS)
Source : LGV30 + HD Audio playlist
Main connection : BT Aptx HD
Amplifiers :
Jlester TPA3255 + Genuine Muse 02 OP amps 44V SMPS LLC PSU (see my review)
Shui Yuan TPA3255 with caps mods + OPA1656 48V SMPS LLC PSU (see my review)
Hypex Ncore NC500MP Dual Mono
As I am of French nationality, although I was born in Brazil, I did not want to distort his feedback, so please use Google Translate to keep the authenticity of his opinion :
I hope that this will help the DIY community to get a first idea of this Shui Yuan module which seems promising therefore) And since several opinions are better than two, I let future buyers share their opinion as well)
I made up my mind to leave a copy of my Shui Yuan TPA3255 + my Jlester TPA3255 amp to an Audiophile friend. I wanted to have an opinion other than mine regarding this new module.
His setup :
Atoll HD100 preamp tweaked version
Cabasse Sloop M2 speakers (94,5DB / 100W)
Source : Chromecast (flac Playlist)
optical cable connection
My setup :
Double DAC AK4497 with OPA1656 / OPA1611
High end 2.5 Floor Speakers with Ribbon Tweeter (93DB / 100W RMS)
Source : LGV30 + HD Audio playlist
Main connection : BT Aptx HD
Amplifiers :
Jlester TPA3255 + Genuine Muse 02 OP amps 44V SMPS LLC PSU (see my review)
Shui Yuan TPA3255 with caps mods + OPA1656 48V SMPS LLC PSU (see my review)
Hypex Ncore NC500MP Dual Mono
As I am of French nationality, although I was born in Brazil, I did not want to distort his feedback, so please use Google Translate to keep the authenticity of his opinion :
I hope that this will help the DIY community to get a first idea of this Shui Yuan module which seems promising therefore) And since several opinions are better than two, I let future buyers share their opinion as well)
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Absolutely my plan! I've been following your various TPA3255 projects and this board seems to be the one to go with at the moment. I would also follow your recommendations with the Aliexpress power supply but I can't seem to find one with 120vac mains. I think I might just go with a Connex power supply as I can get exactly what I need including an auxiliary 12vdc output to run a MiniDSP 2x4HD off of.
Well Chrome (Google) gives this translation to English:
"I would say that this new TPA3255 has a sound very close to JLESTER (which shouldn't surprise anyone). We find this very neutral side, very homogeneous, very clean, quite soft, with human voices that stand out well from the mix. It has more power, which is felt in the bass (more details, especially in the low and low midrange), but maybe also in the high midrange, which on my speakers takes a little harshness (but this This is a known defect of the Sloop midrange driver. Very comparable stage and sound image, with very well positioned instruments. Zero difficulty on complex passages. Tones are very good, harmonics can be heard well in human voices.
From memory, I would also say a little less nervous in the bass than the hypex NC500MP, perhaps a bit less detailed, but better on the vocals. A tad more amount also perhaps, but it would be necessary to confirm.
In any case, very happy to be able to do comparative listening !!
The case is very good, very pretty, and the compact side is very nice! I opened it out of curiosity, the finishes of the case great! So far, I haven't seen any noticeable temperature rise. "
Try to ask @ Hisonauto shop, you can Custom your PSU, send him a message via ali :
Hisonauto ICP Store - Amazing prodcuts with exclusive discounts on AliExpress
alternative to get the SMPS300RS 48V / 110V :
SMPS300RS 48V 110V SMPS Switch Mode Power Supply | Hifime Audio
Last alternative ( the 36V / 9.5A / 350W I am also using works very well with my Aiyima A04) but you can custom Voltage + AC inputs :
300W PSU Amplificatore di Potenza Digitale di Alimentazione Classe A Classe AB PSU 5 Set + Uscita +- 24V 30V 36V 42V 48V 55V 60V 15V Singolo DC12V H291|Amplificatore| - AliExpress
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Adding a small fan would be my recommendation.
A tiny 12v 60-80mm fan running at 5v will bring temperatures way down and be silent from any listening distance
The heatsink on the 3E board is actually quite nice (and well optimised for passive cooling), best to make the use of that IMO
A tiny 12v 60-80mm fan running at 5v will bring temperatures way down and be silent from any listening distance
The heatsink on the 3E board is actually quite nice (and well optimised for passive cooling), best to make the use of that IMO
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When I ran my 3e amp with a 48V PS the heat sink got warm but not exceedingly so. It was the inductors that got really hot. I have 8 ohm speakers if that’s important to know. You couldn’t keep your fingers on the openings at the top for any good length of time.
Cheers,
Pete
Hi,
the 3E Audio finished amplifier measured by ASR :
3e Audio SY-DAP2002 Review (DSP Amplifier) | Audio Science Review (ASR) Forum
3E Audio module vs Aiyima A07 :
the 3E Audio finished amplifier measured by ASR :
3e Audio SY-DAP2002 Review (DSP Amplifier) | Audio Science Review (ASR) Forum
3E Audio module vs Aiyima A07 :
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