difference between Traynor YBA-200 and YBA-200-2

[kamilwysocki]

Does anyone out there know if the specs for the YBA-200-2 are any different from the the 200?

[Daniel Piper]

The self biasing (which it wasn't) was removed.

Different logo on the front.

Otherwise, same amp.

I owned the first version for a while and ran it through their 8x8 cab. Loved the cab, the head not so much.

[Downunderwonder]

They got rid of the autobias system, many of the original 200 models were modded to be the same.

[Alex1984]

The self-biasing circuit was removed and the stock tubes changed from 6550 to KT88. I believe the reason for the removal of the self-biasing circuit was that when the power tubes died, they tended to trigger a lot of other components to blow. I talked to Traynor's technicians and they said that the first revision ones should be fine if you used KT88s instead of 6550s.

[kamilwysocki]

Is the difference in volume between the two really noticeable? And would modding it be a difficult task?

[VanillaThundah]

Originally Posted by kamilwysocki

Is the difference in volume between the two really noticeable? And would modding it be a difficult task?

You aren't going to notice as much difference in overall volume unless you do something to affect the clean volume of the amp. I.E. - switching preamp tube V2 with a quality 12AT7 and replacing your set with some high-quality, late distortion power tubes (I use Tung-Sol 6550's and they are AMAZING) with a good cabinet will get you pretty far. I have the regular 200 version, but I bought a good set of tubes from dougstubes.com (the tung-sols). If you want gritty bass tone that breaks up pretty early on, get some medium distortion tubes....big, thumpy, and loud with a lot of volume before they break up then get you some late distortion tubes. I couldn't find any quality late distortion KT-88's at the time I was looking, but the 6550's do just fine for me.

[kamilwysocki]

okay so i got some 12at7's, can i just plug em in and play or do I have to adjust the bais? I've got the 200 model.

[Daniel Piper]

Those are preamp tubes. Just turn it off, let it all cool then swap em out.

I ran a 12at7 in front to help with a slower breakup.

[kamilwysocki]

okay, thanks