coilcraft is very nice. as i remember texas instruments are using them in their demo board. würth also has a high quality inductor at the same level of quality. pimping the output filter with lower inner resistance should give you better dynamic control and less distortion at higher output power. very good choice. regarding changing caps, i always look at the panasonic low esr types ike fc or fm series.
Ah, here is the answer, same as I plan to use nichicon fw 1000uf on supply. Infront caps use nichicon KA and signal use 10uf silmic rfs and try use my old stock Lt1364 opamp. Would be great for next replacing filter section, thanks for sharing
Thanks for the vid! How much cost was involved with those additional upgraded parts? I own 2 of the A07's and think they sound REALLY good as is. Did the upgrades take this into the stratosphere sonically or just a marginal improvement?
How to increase the power itself ? Because I tested my Aiyima A07 using watt meter and it only draws most of the time at normal listening volume, 8 watt from wall socket, using 48v 7.3A Meanwell LRS350 Power Supply. My other bigger amp can draw 40 watt and the punch to my 400 watt each speaker set is powerful, while this Aiyima A07 cant provide the same punch to the same speaker. I know the real measurement is much more complex than that, but it works, bigger power draw from wall socket will provide stronger bass punch. Usually , ppl change the capacitor, I notice my bigger amp has 4x 2200uF capacitor, while this Aiyima a07 only has 2x1000uF, is changing the Electrolyte Capacitor (ElCo) going to provide more punch to the bass ? Because I read elco is like the power silo that provide the juice to deliver more bass, so bigger is ofc better. If I change it to like 2200 or 4700 uF, will it improve bass ? What else needs to be changed ?
@@trungqn1890 hi thank you so much for the very kind and valuable advice Instead of removing completely it i was thinking to try to slow it down reducing its voltage supply with one of those very tiny and cheap regulators available on ebay From what I understand noise is due to the high rotational speed of the fan? maybe even just a right resistor in series can work? imhe Meanwell are very good products indeed
I use MeanWell LRS 350 power supply, it comes with auto fan that will turn on if it gets hot, but this amp only draws like 8 watt from the 350 watt power supply I checked it using watt meter. 8 watt is just a tickle to 350 watt power supply, I can turn on the power for the whole day and its not even warm.
@@Mickimoss hi thank you very much for your kind and very valuable advice I didn't think to measure the current Very smart testing I will do the same I have seen Mean well SMPS inside professional equipment They must be excellent Thanks a lot again Kind regards Gino
@@rodplanet5901 from my mind. 9 nichicon 10uf 50v dont make much different in SQ, but noise is lower. 4 wima mks and inductors make better quality. Sound more detail and more wider soundtage. But the bass is slightly lighter
@@trungqn1890 wow! Your upgrade makes a lot of sense considering that aiyima without an upgrade sounds very good already. I have one and I might do some upgrade soon. Your video helps a lot. Thank you.
I bought from taobao, this link item.taobao.com/item.htm?spm=a1z0d.6639537/tb.1997196601.270.606d748486qF1d&id=595735056878 throught import service, im not sure you could buy it from China mainland at mouser has coilcraft brand but higher price www.mouser.com/ProductDetail/Coilcraft/VER2923-103KL?qs=zCSbvcPd3pYFGNEVSZE3iw%3D%3D
Job is nicely done but do not think it's worth it. I got a Fosi Audio TB10D / BT30D PRO and already think it's sound better then the A07, out of the box.
i finished these modifies quite a while ago, at that time fosi didn't introduce tb10d. Now I am satisfied with my a07 and don't think I will buy another product soon
@@radzia1010 when i purchased it from internet, the official store in my country does not sell inclued power supply for this amp, so i must find another
@@VinhNguyen-re8km 2 con opamp này có nhiệm vụ convert từ tín hiệu đơn sang tín hiệu vi sai để amp chạy btl, nên khi dùng những con như muse ko phát huy đc nhiều về chất âm. Tất nhiên nó cũng có chút khác biệt, ấm hơn chút nhưng cũng giảm độ trong so với 1612
@@hunghung-ug2bb của mình nguyên bản chỉ là 1000uf 50v thôi. Của bạn chắc mới đc nâng lên rồi. Mình vẫn đang dùng 1000uf 63v dòng fw đây. Tụ lọc nguồn thì cơ bản ít ảnh hưởng chất âm
