Niles SI-1230 Series 2 12-channel Multi-room Power Amplifier

hi there this is Ken Johnson form core brands representing Niles audio products today we're going to be talking about the SI amplifiers or systems integration amplifiers that's what si stands for first off what we're going to start off with are the two channel amplifiers the two channel amplifiers are three models starting from the top you have the si 250 and the what model below that is the si 2100 and the model below that is the si 2150 basically the model number gives you an idea of the amplifier size going back up the ED to the si 250 the si 250 is a two channel by 50 watt per channel amplifier it is a Class A B amplifier so it's got a nice warm rich sound and it is basically a replacement to our venerable and very well known si 245 the model below that is in the same rack size space meaning it takes up the same space but now you go from a 50 watt by 2 channel to a 2 by 100 watt Cla