Even though it wasn't very long since I got @Clemmaster's theta gen V, I recently snagged a nice deal on a sonic frontiers sfd-2 mk3. The theta while is slightly more technically capable than the sfd, loses out musically to the sfd and audial model s. Sfd IMO has much of the musicality of the audial (less thick sounding though), and is almost on par resolution and separation wise to the theta. Throw in its better depth and imaging and more linear bass (moffat bass on the theta does not mesh well with the he-6 IMO), it's definitely my favorite dac out of the three. Which is why I'm letting the other 2 go. Theta GEN V: 500 usd (pretty much in the same condition as the previous listing, but I did notice a bit of noise on the left channel due to dirty power, should not be an issue if you have cleaner power or a power conditioner) Audial model S mk2: SOLD (500 usd) (a few cosmetic scratches on the chassis including a deep one on the right side, but functionally perfect). I also got some headphones for sale, went on a mid fi buying spree and the ma900 came out on top. Akg k500: Pending (80 usd) (light in bass but offers a fanstastic soundstage and great for jazz and vocals, 7/10 condition wise no OG box or packaging) Beyerdynamic dt880 600 ohm black: SOLD (120 usd) (like new condition, and comes with its carrying case) Soundmagic hp150: SOLD (30 usd) (pretty much giving this away since IMO sounds way better than 30 dollars) Shipping and paypal fees extra. If you're canadian emt is preferred. Friends and contributers come first.