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In the Forum: Melquiades Amplifier
In the Thread: A different breed of 6C33C amplifier.
Post Subject: Driving Miss DaisyPosted by Paul S on: 3/14/2012
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KOT, with the ML2s I found very little difference in the sound of various 6C33Cs, but the old Svetlanas certainly "held to spec" better (and longer..).  I find the 6C33C to be more "direct" sounding than 845 or 211, but this in the context of a 3-stage amp, and I was limited in my choice of 2nd stage tube.  The input tube was certainly a factor, so I ass-u-me the driver matters as well (as with most tube amps).

I have to say I think any low-power amp will be (and should be) critically limited as far as loading, rather than over-driven.  IMO, A2 is nice only to give more A1 headroom; but with the IHT I think feedback "helps the ML2 drive more difficult speakers", and I think parallel output would be the only option for more power from 6C33Cs, if to attempt 15" drivers.

Sure, some won't "like" the 6C33C because it is not "magical"; but I like that it allows fine tuning in other areas.

By the way, one should NOT get "elephant sound" from 6C33Cs (and I think this may be one reason why some don't "like" them...).

Maybe keep playing with operating points...

Best regards,
Paul

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