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I discovered the beauty of SW1X years ago and started with the Dac II, III Std and now a III+ Std DHT version and just love it... Audiophiles are starting to catch on, it's like no other Dac and chasing the latest Dac chips are a thing of the past Wig
Asghar,If funds are available I would go with the Dac Std III+ which is Directly Heated Triode (DHT) and loaded with a host of top notched parts. As an owner of the II, III and now III+, the III+ is fuller sounding and more meat on the bones as the phrase would have it but buy within your budget as Dr. Slawa gives 100% credit toward future upgrades. Here's my review of the Dac II a few years ago:https://forum.audiogon.com/discussions/sw1x-audio-design-dac-ii-absolute-top-tier-ref-nos-dac?highlight=sw1xDac Std III Optional Extras:a) 2 x Audio Note Copper foil, mylar in Oil signal output decoupling capacitorsb) 4 x Black Gate capacitors around TDA1541c) Audio Note 2W copper, non- magnetic, tantalum film resistors on plates of the output tubed) the STD version of DAC III can be ordered with either US made 5687/E182CC or Soviet 6N6P Premium 6N6P from the 60s or Premium vintage NOS black plate Tung Sol 5687/E182CC output tubee) directly heated vintage 5R4 type of tube (from the 60s) in the PSUf) Additional choke filtering on the DEM clock tube PSU for the TDA1541g) output wiring is normally one pair in fine silver and other is copper (by default), This way one can fine tune the sound by using either output. optional is all silver or all copper wiringh) USB input with a tube master clock, powered by an separate transformeri) 2 x HiB double C-Core mains transformers for the TDA1541 and DHT/DHD power suppliesWig
I recently picked up a used SW1X Dac III+ a couple weeks ago. I've been using the PS Audio Directstream Jr. Dac for a few years and really liked it. I had been considering trying a NOS Dac just to compare to the high tech upsampling in the PS Audio. I had SW1X on my radar for some time. However, a couple weeks before the SW1X came up my local hifi store had a used Directstream at a stupid price. I didn't know the SW1X would come up, so I bought the Directstream and sold the Jr. I've been impressed by the DS and its a clear improvement over the Jr. I really thought I'd be done with Dacs for a while and then the SW1X Dac III+ pops up and I went for it. I only put it in my system about a week ago. So far I'm really impressed. I haven't had too much listening time, only a couple hours. However, it does have such a natural, lifelike tone. I got about 2 hours of listening yesterday and put on a few tracks by Nina Simone. I don't usually listen to jazz vocalists, but wow, I had never heard her like this. My wife came home while I had the volume cranked pretty loud and she asked "who is that?" All I could say was "Nina Simone is amazing." I'll be listening to more... Another track I put on is The Winter Wind by the P.E. Hewitt Jazz Ensemble (I guess I was in the mood for 60's jazz vocals). I like this track because of the sound stage and vocals. It just has a fun "vintage" jazz sound. There's a spot in the song where a sax comes in for a solo and it can be a bit hot. I've listened to this with Salks, Totems, Kefs, Clearwaves (accuton ceramic), Omegas, etc. with tubes, solid state, different dacs, etc... and this part has always gotten a touch hot where I wanted to turn the volume down a bit. I'm now using Cube Nenuphar Minis (another story) and this SW1X and this part of the song sounded amazing. I actually turned it up. The tone and "weight" of the sound was so spot on. There was enough detail to make it sound so real but not overly detailed or artificially detailed like some gear can do. Again, I had never heard this song like this before.I haven't put the DS back in to compare. I only had it in for about 2-3 weeks before the SW1X so hard to compare. I'd like to but my cabinet sucks and moving components in and out is a pain right now. Plus I've got so many things going on I don't want to take free time to moving gear around right now. And, this sounds so good its hard to take out. I do wish the dac had a power switch on the front. And, the other issue is the volume on my system is louder with this dac (does it have more gain?). I can't really listen at really low volumes unless I set the max volume to 80/100 on my auralic streamer which is feeding the dac. This wasn't an issue with the PS Audio Dacs or any other I've used.Anyone else have experience the DS and the SW1X?
Today was the 1st full day I had listening to SW1X D2 STD. and then this evening decided to switch back to DS -Sr. the DS believe it or not sounded very flat to me although it is no slouch , Sw1x - Dynamics organic sound , very musical clean no distortion , agree it has very high gain , although I have very good clean stable electricity running in my house including semi dedicated circuit separate panel plus PS audio outlets throughout the house , I find the power supply of the SW1x either to be very sensitive to change volume seems to go up suddenly due to high gain I had reset the X-overs & volume on my REl subs that are connected using the high level connection SW1x DAC obviously has been voiced by Dr. Salwa I find the HF to very clean and seems to dig out things that I did not hear before in my system high resolution, images very well , their seems to be more meat on the bone sort of situation I have had an opportunity to listen Chord Dave plus own 2 other DACs but this is the 1st NOS tube DAC I am listening to and like it very much , but it is not cheap nearly 6k , so you probably lucked out ! and if one wants a balanced or with a USB its about 11K . I am thinking of ordering one by next week , let us compare notes will PM you. or speak on the phone Asghar
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