[quote name='essexbasscat' post='830068' date='May 6 2010, 09:37 PM']Just checked this to be sure. The Markbass Sa450 owners manual gives guidance on the characteristics and use of frequencies of the low, low - mid, upper mid etc
Helped my understanding by more than a tad !!
T[/quote]
Yes will have to dig it out and a general mess about. Always pleased with this amp though, a real Rolls Royce of an amp.