[quote name='Beedster' post='792749' date='Mar 31 2010, 11:50 PM']At last, a reply I understand! Could you give examples of each class?
Cheers
C[/quote]
OK, here goes...
Class A - Can't think of many bass amps that run in class A, other than small amps with one-transistor power stages, such as the Peavey Microbass. Valve wise, it tends to be restricted to small guitar amps (under 10 watts or so). Think Fender Champ, Vox AC4, Epiphone Valve Jr.
Class B - Not commonly used for instrument amps because they need to be perfectly set up to minimise crossover distortion. Can't think of any off the top of my head.
Class AB - Here's the richest vein of amps. Most bass amps fall into this class. Hartke, Peavey, Trace Elliot, G-K etc. Class AB valve amps include the Ampeg SVT, Trace V8 and the Mesa Boogie 400+.
Class D - Most of the new breed of super lightweight amps are class D. Markbass, Ashdown Superfly, Genz Benz Shuttle and the like.
Class H - The only class H bass amp I can think of is the Marshall 7200/7400 Dynamic Bass range.
Hope this helps
A