Roger2611 Posted March 19, 2014 Share Posted March 19, 2014 Hi guys, I recently picked up a Hiwatt Hi-Gain 100 for a price it would have been rude to refuse, I always wanted another valve head for bass and thought this would do the job....it is not quite there though, I am struggling to get enough volume from it before it start distorting too much, I assume that is because it is the hi-gain version....could I re-valve the head to lower the gain channels and get more headroom? And could I change anything to make it a little more bassy? Cheers Rog Quote Link to comment Share on other sites More sharing options...
geoffbyrne Posted March 19, 2014 Share Posted March 19, 2014 To get more headroom, you could replace the 12AX7s with 5751s (approx 70% gain), 12AV7 (approx 40% gain) and the 12AU7 (approx 20% gain). I'm not sure you'd need to change all of them - maybe just the V1, but others who know much more than I will be along soon..... G. Quote Link to comment Share on other sites More sharing options...
Roger2611 Posted May 10, 2014 Author Share Posted May 10, 2014 Anyone else with any ideas? Quote Link to comment Share on other sites More sharing options...
Sean Posted May 13, 2014 Share Posted May 13, 2014 Phone Watford Vales and ask for Derek. He knows stuff. He'll put you right. He does it for a living and people who play valve amps for a living take advice from him. He's not God (Billy Sheehan is) but he'll give you some very good pointers. Quote Link to comment Share on other sites More sharing options...
badboy1984 Posted May 13, 2014 Share Posted May 13, 2014 Am I right to think that by switching out the higher gain valve to a lower gain valve the volume will drop but can turn up higher without getting dirty too quickly? Quote Link to comment Share on other sites More sharing options...
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