Until recently - I had really no access to any higher priced Ampeg stuff. A store got a new V4-B head in this week - with a 610 Ampeg cab. I tried it - and it sounded killer - but I wonder - was it maybe the cab ? It is priced at a grand - which seems pretty cheap for an Ampeg all tube head. I use an older Mosfet model Hartke 3500 right now - but am looking for a tube amp replacemnt. Are the V4-B a pretty good product - or - are they frowned upon as a low end Ampeg ?