Members Guiary Posted October 30, 2009 Author Members Share Posted October 30, 2009 Low is safe, in this context. (Underbiasing means biasing "too hot", and overbiasing means biasing "too cold", so I don't want to confuse the terminology for anyone reading this.) So biasing in the 70mV region (for how my bias test points work on the 100W models) won't hurt the amp. It might start sounding too clanky at some point, and then when biased even colder it'll start sounding harsh and weak for output, but the amp and the tubes won't be damaged by biasing on the cold side. I've biased 6550 in that range (35 per tube) and it's sounded fine. Some prefer a bit of a colder bias to keep the sound more "modern", as long as it's not too much. Well it looks like I'm going to try a little lower and use 80mV as my starting off point. Thanks for the suggestions James! Link to comment Share on other sites More sharing options...
Members kayman121 Posted October 30, 2009 Members Share Posted October 30, 2009 oh. my. {censored}ing. god. Link to comment Share on other sites More sharing options...
Members jnurp Posted October 30, 2009 Members Share Posted October 30, 2009 YES! Im right behind you mang, he is probably in his snowy northern lab as we speak working on my Chimera.... Link to comment Share on other sites More sharing options...
Members Toneranger24 Posted October 30, 2009 Members Share Posted October 30, 2009 I had the pleasure of hearing this rig yesterday VERY {censored}ING POWERFUL ,I found the Hydra had this fuller girthy punch to it and the chimera a straight grinding crunch ,i cant over state how well these 2 amps compliment each other ,I think ill head on up there now and rub my balls on them seeing I hold the key to these heads home lol.Job well done James ,and dont worry I can still be heard lol Link to comment Share on other sites More sharing options...
Members superflyinmonke Posted October 30, 2009 Members Share Posted October 30, 2009 I would consider a Hydra like being bludgeoned to death with a sledge hammer and a Chimera like being placed in a woodchipper feet first. Yes, acurate tone descriptions. Link to comment Share on other sites More sharing options...
Members Toneranger24 Posted October 30, 2009 Members Share Posted October 30, 2009 I would consider a Hydra like being bludgeoned to death with a sledge hammer and a Chimera like being placed in a woodchipper feet first.Yes, acurate tone descriptions. lol or this Link to comment Share on other sites More sharing options...
Members Uncle_Milton Posted October 30, 2009 Members Share Posted October 30, 2009 Wow, I'm so {censored}ing jealous. Link to comment Share on other sites More sharing options...
Members firejack018 Posted October 31, 2009 Members Share Posted October 31, 2009 Epic rig mate! Congrats.I am so jealous. Link to comment Share on other sites More sharing options...
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