Iv owned and gigged my ashdown mag 300 1x15 combo for two years never had a problem the sound is warm if a little muddy, IMO the low and the low mids are pretty unbeatable in tone great growl and punch but in the upper mids and highs they seem to be a bit thin and artificial no real life in them, I think the mag series definitely suits 15s to make use of the awesome low end tone as I did use the head to power my 4x10 which again made the low end shine but showed the flaws with the highs. I would definitely recommend it however you may struggle to get a nice jazz tone from it IMO of course hope this helped pal