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There's a guy here in Taiwan who has upgraded all of his wall warts <I think all> with Ganfet power supplies, and insists they've lowered his noise floor and that 'everything just sounds better' that before. Have any of you tried using GANfet wall warts?
Lot of life changes in the past year but I've had some time lately to get back to music. New setup and adjusting best as I can. Fired up the little PCM56 and it remains a satisfying listen. Yes definitely the separation is poor. It's more like the older AKM chip 'wall of sound'. But that older r2r 'magic' is just hard to resist. So I thought let's bust out the soldering iron. It's a small unit, it'll just be a little tinkering distraction. I swapped out the cheap RCA's for spare DH Labs copper plated and a KLE silver plated copper which are very affordable at $25/pr. Lastly I swapped out the output caps for some spare Muse 47uFs. Easy to do, board solder melts easy. Man, what a treat (or Trick?). I love this baby. I hope to get some highish priced DACs on loan to compare later. The poor separation remains but high end extension is perfect, it sounds even quieter, lower noise/distortion (?), tambor/tone wonderful. Cost $40 plus fancy upgrades at retail equals what $65 shipped max. I'll certainly take this over the Schiit Modi MB or anything I've heard under $500 any day.
The actual capacitor is a 68uf, You have used a 47uf cap. Do you think going lower would be better? or doesn't matter?
47uf is what I had on hand. Probably best to stick to 68-ish.
you mean something like this?https://www.amazon.com/MINIX-NEO-P3-Charging-Compatible/dp/B09JKJ1QRJ/ref=sr_1_5?crid=29AI8T1YFSGH1&keywords=GaN+Power+Adapter&qid=1670780364&sprefix=gan+power+adapter%2Caps%2C144&sr=8-5&ufe=app_do%3Aamzn1.fos.18ed3cb5-28d5-4975-8bc7-93deae8f9840i have used ravpower powerbank to power a D50s before and didn't like the sound. purpose of getting the e30 is just a novel idea to get a system completely powered by the HDPlex 300. although thinking it's just an idea now. after comparing against lab12 last night, e30ii doesn't come close.
just received topping e30ii a few days ago. powering the 5v input via HDPLEX 300. sounds very good. this dac uses a pair of AKM 4493Sthis is a big improvement over the e30 and makes me curious about the AKM4499EX.funny enough, got an apos spam mail this morning introducing toppings E70 Velvet w/ the exact chip. so, ordered it.
How's the E70 Velvet?
Well, unless there are convenience features it doesn't support, the Geshelli J2 made in the USA is a great option.https://geshelli.com/product/jnog2/I did not like the Topping that I bought, the E30. I'm sure their models vary in performance, but they focus on high scores on ASR rather than sound quality.
Schiit's on amazon. Modi is only $125.
Thanks guys! I ended up buying a Topping E50 DAC. I had a $70 Amazon gift certificate. I will report back on how it sounds once it arrives in about 2 weeks.
An excellent sounding dac for the $. Notably better than the E30 I had. For a few $ you can get a simple linear power supply that is a substantial improvement over the stock non-supply:https://www.amazon.com/gp/product/B00B88ENAG/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1I bought one for all 3 of my Toppings and they all worked great.You'll be glad you did!Have fun.