@linh0983 : Không nên dùng chuyển XLR sang RCA trừ khi bác dùng transformer. Lý do là XLR trên 502DAC truyền theo chuẩn AES3 với mức output trên 2V pp, còn receiver trên cổng SPDIF coax trên DAC có mức 0,5 V pp, output level chênh nhau quá lớn, chưa kể mất hết cả cân bằng trở kháng. Bác chỉ nên chuyển từ digital AES/EBU về SPDIF coax/BNC khi có transformer, ví dụ như cái này
https://www.thomann.de/de/neutrik_na2fd2btx.htm?ref=search_rslt_xlr+rca_188454_29
Hiện em đang dùng nó với soundcard Digigram VX222HR để nối với Gungnir Multibit qua cổng coax cho việc xem video và youtube.
Có một khoai Tây đã thử như bác vói 502DAC và nói rằng âm thanh bị ảnh hưởng nặng. Đây là phát biểu khi dùng XLR-RCA adapter
I have my 502 up and running with no buzzing. Build quality looks great. I'm running it through a Pi3 and have run PiCorePlayer software and now I'm trying out Moode. I am using the Ifi ipower power supply and am running the dig out with an rca adapter in the 1/4" output and an optical cable comparing any differences. Cut to the chase - it has great detail and soundstage BUT it sounds thin, bright and fatiguing! No warmth. Lower mids are not full of enough.
System is Eminent Technology 8 speakers, Supratek preamp & Pass Labs amp. Thanks for any help!
Chỉ thay bằng BNC-RCA
Update on my 502. I received the BNC to RCA adapter today from Amazon. Less than $5 gold plated. It came from Monoprice.
Well who woulda thought that cables & adapters make a difference. Ha! Crazy audiophile talk! Well it is true. I should have known better. I built all of my cables out of good Beldin stuff ala Jon Risch recipe (over at Audio Asylumn if interested).
That adapter made all the difference in the world. Much better sounding than my cheapie optical cable. No longer thin sounding, Everything is fleshed out the way it should be. High end is a little softer than I am used to compared to from my Daphile setup, but I may have been hearing some hash added up there that made it sound hotter. Don't know, Dare I say I am hearing more detail and a bigger soundstage than any other prior setup. I was going to throw in the towel on this little 502. Now it's a keeper.
