I drilled a strip of holes down each side and a patch of holes on top right over the heat sink. I use a 48V power supply dialled down to 44V. works great

the mods looks great, hope that they also lift up the soundperformance-notch a bit

Is Nichicon Fine Gold cap good for signal input ? 💌

Why? Just use an aluminium block to connect it to the enclosure cover, this will result in direct heat contact with the cover (enclosure body).

Cool, haven’t seen anyone mod quite that much on a A07 yet. You changed a lot of parts. Did you find the upgrades worth it? Significant improvement in sound quality….? What was the total cost in parts for all of that?

The inductors, looks like you replaced them. What iductor are you using? Brand, model and spec please

@trungqn1890

Жыл бұрын

First, I replaced with coilcraft ver2923 oem, 10uh. After i replaced with 6,8uh. You can see it in my latest videos

What caps you use for replacing 2x 1200uf on supply?

@trungqn1890

Жыл бұрын

i replaced with nichicon FW 1000uf 63v

I own four A07s and have found that the "heat dissipation issue," while certainly measurable, presents no problem whatsoever in actual use playing music. I have two in my main system driving my ambience/surround speakers and never even had a benign output chip shutdown. I'm sure your mod will make yours run cooler, of course -- but, at least in my experience, it's a solution in search of a problem.

@trungqn1890

Жыл бұрын

Hi. In where i live, room temp about 29-30*C at summer, so my a07 has been shutdown 2 time even it does not play too loud

@editorjuno

Жыл бұрын

@@trungqn1890 -- Understood, fair enough. I'm sure folks in situations similar to yours can benefit from your work. I also think they would like to know where you found that larger heat sink.

@graceMASTER777

Жыл бұрын

U bet....have never faced any shutdown like that even if the amp got heated ,which by the way is not much at all compared to few others. Offcourse driving it always like pedal to the metal would increase the temp way higher. Totally fine to see the mod and it surely does help in avoiding extreme heat.

@GurvanBHC7

Жыл бұрын

@@editorjuno Hey, does your receiver’s Amp have better sound than the Aiyma 07? I will soon buy an Marantz Cinema 40, and I don’t know if i buy 2 Aiyma 07 for the front LR and center, or for the surround and surround back… What do you think will give me better sound? Thank you in advance

@editorjuno

Жыл бұрын

@@GurvanBHC7 -- I've never owned a receiver of any kind, so I can't answer your question.

Hi thank you for showing your very valuable modification If I understand well the copper plate is in contact with the chip below and the heat sink above? How please Have you considered a little heat sink with fan? Kind regards Gino

@trungqn1890

Жыл бұрын

Hi. There are no copper plate between the chip and heatsink. The aluminium direct contact to chip’s powerPad. If i not wrong, in new version A07, aiyima has upgrade bigger heatsink I don't like fan noise so I wouldn't appreciate that option.

@gino3286

Жыл бұрын

@@trungqn1890 hi thank you for the very kind and valuable advice You have done a great job indeed i would like to buy one but i am still undecided about buying just a board to make some experiments I could put the board and the psu in the same box thanks again and kind regards gino

@trungqn1890

Жыл бұрын

@@gino3286 There are some kinds of boards on the market, some is good like 3e but otherwise almost them dont have good quality components and finishing. Based on the amount of money you can consider

@gino3286

Жыл бұрын

@@trungqn1890 thanks again i see it's not easy But i would like to change also the volume pot for instance I will try one or two after reading some reviews Kind regards Gino

@trungqn1890

Жыл бұрын

@@gino3286 i also tried some cheap A50k volume pot and result is quite good

А не проще вентилятор поставить?😊

Good day.Capacitors Fg and bp?

@trungqn1890

Жыл бұрын

Bp sir

@OperatorCVK

Жыл бұрын

@@trungqn1890 And Fine Gold?

@trungqn1890

Жыл бұрын

@@OperatorCVK yes but i changed to wima mks2 for coupling and silmic ii for feedback

@OperatorCVK

Жыл бұрын

@@trungqn1890O wow.That will better?

should've been how it came.

I do believe this mod is a waste of time&money chips are made to run at their specific temp range in order for them to be efficient. The chips in your PC or phone are always hot they are meant to be. My a07 runs a good 12hrs a day for months now and it's still going.

@trungqn1890

Жыл бұрын

Haha

@Knowbody42

9 ай бұрын

Chips perform worse and are less efficient the hotter they get. No they are not "meant" to be hot. They are just "allowed" to be hot, because cooling them better requires bigger heatsinks, which adds cost and makes them bigger and heavier.

Fan is better

@trungqn1890

Жыл бұрын

Yes, fan is better cooling, but i dont like its noise

BÁC CÓ BÁN KHÔNG Ạ

@trungqn1890

Жыл бұрын

Bán gì bác?

@phanvanbin3307

Жыл бұрын

Có bán lại bản mod đó không ạ

My A07 has never registered so much as even slightly warm to the touch. What kind of use do others see that causes a heating issue?