I have a Tubadour V..moved up froma Okto Dac8. what I found with the Tubdour..was a wider sound stage..extending outside th speakers..more air/space between instruments. A fuller more rich sound. Love it...and its gonna be around a long time.
I almost bought a Tubadour III se...but wanted the reclocker the IV and the V have...ended up splurging a lil and found a deal on the V and coudn't be happier. BTW you can add the reclocker on a III Se.