"August 29, 2019
Hope all is well. I want to thank you once again for helping me out. I wrote a review about the DarkVoice 336SE and it was posted on Amazon. I didn't mention Apos directly because I felt they wouldn't have posted it. Here is a copy of what I said...
DarkVoice 336SE Headphone Tube Amplifier... Going back in time!
August 26, 2019
Today I received my DarkVoice 336SE (referred as the 336). I ordered the 336 from a different vendor (better price). I've read many reviews on Amazon and the internet of the 336. The reviews were mostly positive. I became intrigued and started wondering 'How good is this tube amp; really?'. Most reviews of the 336 were good, if not excellent (once you upgrade the vacuum tubes that come with the unit). The tubes that come with the 336 are not up to par. After reading many reviews I decided to pull the trigger and bought the 336. The replacement NOS tubes I ordered arrived the same day as my amp, what are the odds of that! I didn't bother installing the stock tubes; I purchased a matched pair of NOS GE 6080 power tubes (the large one, and I kept the other as a spare just in case). For the per-amp one NOS Tung-Sol 6SN7GT "mouse ears" (smaller one). Very clean tubes, with no perceived hum. Once I turned the 336 ON, I noticed a mild burning odor as the tubes began to warm up. That lasted for about 30 minutes. No worries, that's normal for vacuum tubes. I call it the 'break in period'. After that, no more smell and the 336 ran flawless. I have the 336 hooked up to Edifier's R2000DB power bookshelf speakers and they sound amazing. Currently, I'm experimenting with different earphones. Currently I'm using the CCA C10 ear monitors, they sound amazing. The music sounds accurate, detailed and the soundstage is wider. I listened to my favorite tracks for a couple hours, very satisfying. The next step is to roll different tubes into the 336. I also purchased one Sovtek 6SN7GT (smaller one) pre-amp tube which I intend to test soon. I'm extremely pleased with my purchase and would highly recommend the 336 to anyone looking to enter the universe of tube rolling. Best of luck to those who decide to take a leap of faith!
P.S.: My thoughts and prayers are for you and the people of Hong Kong. Stay strong and God bless! Stay in touch...