Vincent SV-236MK

Just recently, I decided to upgrade my current Integrated amplifier which is a Vincent SV-236MK Tube Hybrid Integrated Amplifier purchased in 2009 for $1995.00 with a Luxman L-550AX which was $4990.00. Surprisingly, the Vincent SV-236MK sounded much better than the Luxman. I even purchased the top of the line Marantz integrated amplifier PM-11S3 and the Vincent SV-236MK sounded much better than the Marantz. The Vincent SV-236MK sounds warm,detailed and musical and has plenty of bass. The Luxman had no bass. I would like to purchase an integrated amplifier which sounds better than my Vincent SV-236MK but I haven't found one. Any suggestions? I have Bowers & Wilkins PM1s, Vincent SV-236MK, Marantz Reference Series NA-11S1 Network Audio Player and an OPPO BDP-105 Blu-ray Disc Player.