Responses from yingtonggao

CD Transports
Buy a reasonable transport and a Titans Audio Lab Helen, the combo surpasses many high end transports. 
Is the NuPrime CDT 9 Pro a Best Kept Secret?
Adding a Titans Audio Lab Helen to a CD transport will significantly improve the performance. 
If you still spin CD's their is a reference level Transport for reasonable money
Adding a reclocker, either the old Z-systems RDP-1 or the newer Titans Audio Lab Helen, will revive your transport significantly. 
Best used or new DAC under $3500
Add Titans Audio Lab Helen before a reasonable DAC, such as an Arcam D33, and you can compete with the top fliers. 
COS Engineering D1
Yes, I am the one and only COS importer/distributor/dealer in USA. Please contact me via audiogon email system or┬átext me at Five18 Six69 Eight466 for a quote. 
Benchmark AHB2 power amp impressions?
I Have owned a pair of AHB2 as monoblocks for a year, and they replaced a pair of Marantz MA9S2 with no regrets. Yes they are quiet and clear, more so than the Marantz. It does not sound Sterile to me , but the partnering electronics have to match... 
Unison Research Simply Italy or Primaluna Dialogue
I've finally chosen the Simply Italy and have thoroughly enjoyed it for more than 2 years now. No regrets and the Simply Italy just keeps sounding better, sweeter, and more involving. 
Cary SLI-80 or Unison Research Simply Italy??
My vote goes to the simply italy. 
Unison Research Simply Italy or Primaluna Dialogue
I listened to both and now own both the simply italy and a primaluna. The simply italy is a very sweet sounding little baby. The primaluna has more detail and definition and is hard to fault, when driving a warmer speaker the primaluna would be a ... 
Unison Research Simply Italy - amazing
I have the same amplifier now breaking in. Very promising right out of the box. A sweet sounding little amp that has enough transparency and tube magic. 
High Fidelity Cables CT-1designed by Rick Schultz
I just dipped my toe into a pair of the CT-1 basic interconnects. Instantly I hear a reduction in background hiss/hum, and a neutrality that is very welcome. The break-in period has a little bumpy ride in a way that it sounds better one day and wo... 
Any opinions on the AMR Digital Processor 777 Dac?
Karmakuma, I will personally choose AMR DP777 over NAD M51. To me the NAD makes more Hi-Fi sense, the AMR makes more musical sense.More specifically, if you love big bass the NAD will do better. But the AMR's naturalness and delicacy in midrange i... 
Any opinions on the AMR Digital Processor 777 Dac?
I have tried a bunch of separate USB/SPDIF converters before the AMR DP-777, including really expensive ones from Off-ramp with all possible options and modifications. Each sounds different but none presented a significant upgrade to running USB d... 
Unison Research Simply Italy or Primaluna Dialogue
Any Simply Italy owners here? 
Recommendation for SS amp for biamping
I use two Arcam P38 power amps to bi-amp. Great results!