Sanders Magtech Amp or Bryston 4B-SST2 4 Mags 3.6

Hi, looking to match a new amp with Mag 3.6 or 3.7 and I've heard about the Sanders but would like more feedback, especially comparing it to the Bryston or another amp you like under 5k (preferably less if used). System: AIFF files on Itunes Computer server -> DACPORT DAC via USB -> BYPASS FILTER AT 80 -> split less than 80 to JL Audio F112 Sub and over 80 to Bryston 4B-SST2 or other amp and on to Mag 3.6's (or 3.7's). No preamp in this system since volume is controlled by the cigar-sized Dacport which has worked great for me on other systems. Thanks. Laurence