Today I compared the VAC 200iq with the kt 150's and the Pass x350.8. The Kt 150s are a HUGE game changer compared with the Kt88s. Bigger everything in a good way. More punch with crazy good mids and excellent imaging. The Pass had a definite advantage in the lows, but not a large one. The Pass was a little "harder" in the mids than the VAC. We were listening with a VAC tube preamp and Magicos using the 2-4 ohm tab. Will return shortly to compare the same set up with Focal sopra 3s. A tough choice so far, but the VAC with the kt150's seems to have a slight edge on the Pass. To address Al's question, my current speakers are my 20 yr old B&W bookshelf series which will be replaced when we sell our current house. God only knows when that will happen. So I guess I'm auditioning speakers somewhat as well at this time, although my budget only allows for an amp at this time.