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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: This is going to be a great thread:) posted by Russ57 on July 7, 2006 at 11:32:14:
Thanks Russ,I think your observation about the tube's rp changing is generally correct but this is always the case with tubes, even with gain stages ... a reason why I like CCS. To minimise the effect in OP stages I always sacrifice some power by keeping the primary impedance high. My point about optimising the driver also seems to help offset this limitation.
In the case of my parallel SE 845s I run them into A2 on peaks to make up for the small power sacrifice. These are by far the best amps I have been able to come up with so far ... a very good balance between realistic, three dimensional sound and sufficient power to provide enough headroom to do justice to large scale music.
Incidentally, we know that SETs have limitation at high levels where 3rd harmonic (followed by other high order distortion) increases dramatically even prior to clipping and I think that insufficient headroom is probably a factor affecting the reproduction of complex music (that often coincides with high levels) in many systems.
Naz
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Follow Ups
- Re: This is going to be a great thread:) - Naz 17:35:46 07/07/06 (0)
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