When I owned the VR4 Gen III HSE, I owned or auditioned the following amps: VAC Phi 110/110, Channel Islands Audio D100 and D200, McCormack DNA-2 Platinum, McCormack DNA-500, Nuforce Reference 8, Odyssey Stratos Extreme Monoblocks, Moscode 401HR, and a few others that I've forgotten.
The Moscode 401HR and VAC Phi110/110 were a level above the rest. The Moscode had better bass control and bass extension and was less fussy about matching components. The VAC Phi 110/110 had the magical VAC midrange and overall clarity. It was a little fussy about the electronics in front of it, regardless of their excellence, and it could sound a little bright at times...a quality that I was always fighting with the VR4 Gen III HSE. The Moscode was extended and did not produce brightness in the speakers.
The Moscode 401HR and VAC Phi110/110 were a level above the rest. The Moscode had better bass control and bass extension and was less fussy about matching components. The VAC Phi 110/110 had the magical VAC midrange and overall clarity. It was a little fussy about the electronics in front of it, regardless of their excellence, and it could sound a little bright at times...a quality that I was always fighting with the VR4 Gen III HSE. The Moscode was extended and did not produce brightness in the speakers.

