Just acquired a DS pre with the rare HT bypass feature that I need for my setup. Didn’t think I would one with the HT bypass so Christmas came early for me. Very easy to enjoy this hobby with a wife that supports and also enjoys music as much as I do.
I’m not sure what tubes are installed since I couldn’t make out but the previous owner thinks they are the Shunguang that Don ships. The rectifier is a Sylvania. I have my Threshold 350e in output 1 and sub in output 2. Not sure if I need to switch them around but I think it sounds good in this config. I have the gain on both channels full throttle since Don’s instructions says that’s how he runs his pre and it makes it easier so need to count the clicks.
Compared to my Placette passive pre (w/ht bypass) that I’ve had for 15yrs, the DS is definitely a qualitative upgrade in all areas. Transparency, imaging, micro-detail, bass. All the sonics of the Placette are still there but improved. I was expecting better imaging but with the DS it had me realize how “loose” the imaging was with the Placette.
I may try different tubes in the left sockets but am really enjoying right now. Almost 2hrs since I turned on and it just keeps getting better. The one thing I will be upgrading is the power cord. Previous owner gave me a generic cord and on Don’s site he has a power cord for $89 and improves the ore by 20%. Sounds like a no brainer.
I’ll report back how the audio progresses but I don’t think I will be upgrading for another 10yrs or so.