I am using 2.5 pairs of Hurricanes and another pair of ASL 845 (1009) to drive my Westlake HR7 speakers, single D-Box Mammouth subwoofer and a pair of super tweeters. My experience is that I always prefer connecting the ASL amp at 16ohm, irrespective of whether the speaker is 4ohm or otherwise. I've tried many times the triode mode but I always find the pentode mode better. Perhaps I am using my Hurricanes for base (400Hz and below) and super high (15,000Hz and above) so please take this into consideration. I also would like to hear others' experience.
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