I have listened to the following models: SR-225, MS-1, RS-2, RS-1, MS-Pro, HF-2
HF-2 is the least bright of the bunch
RS-2
MS-1
SR-225
MS-Pro
RS-1 is the brightest of the bunch
HF-2 is the least bright of the bunch
RS-2
MS-1
SR-225
MS-Pro
RS-1 is the brightest of the bunch






