Software

Wow that's a nice price, you probably would want one with better connectivity because judging by a youtube review the topping dx3 pro plus and dx5 sound the same, it's the placebo effect I guess for high end dacs. 1000 actually gets you closer to high end headphones like Susvara, wouldn't you want rather to invest in those.... Don't say you have them already🤣😉

Good luck

Thank for letting me know... Most recommend Topping DX3pro + and the Version 2 of Ifi zen dac

I had the PX5/7 from reviews the headphones were supposed to be very good with huge soundstage.

I never felt that, had to remove earpads to enjoy them better but went momentum 3, for me these are very good and enjoy them more.

I will try getting a dac and re use my PX5 maybe I might recoup the 350usd lost, but then I might be wasting more money rather than just enjoy my momentum 3.

Audio quality really depends on

1 headphones 2 Source quality 3 subjective preference and also music type 4 EQ 5 Transmission type

I have played around with the above and still enjoy my headphones but will consider a dac only for serious listening, to me it's like getting a VR device,some get immersed by VR, for some it's still not good enough but just a gimmick

I have used my favorite headphones and they are not open but closed without a dac for more than 20 years.

To be honest it's preference and also depends on you.