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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: Balanced / XLR outputs posted by myles on January 29, 2007 at 09:00:09:
The frontends are single-ended, and that's why a single-ended-input, push/pull-output amp needs a phase splitter.Antique Sound Lab has recently added balanced inputs to some of its PP poweramps...the Hurricane comes to mind quickly. Adding that capability added another 6SN7 frontend tube to the amp.
That additional complexity is one reason some high-end manufacturers such as conrad-johnson do not use balanced circuitry--they believe it adds only complexity and cost--and not sonic quality--to home-audio equipment. Obviously, other manufacturers (and users) disagree.
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Follow Ups
- Some of a PP amp's circuitry is balanced--the driver and output stages. - jeffreybehr 10:35:00 01/29/07 (4)
- "additional complexity" - Allen Wright 07:27:53 01/30/07 (2)
- How good does cascode get? - andy evans 14:11:17 01/30/07 (1)
- Re: How good does cascode get? - fatbottle 14:33:02 01/30/07 (0)
- Balanced isn't too complex, but more parts!! - andy evans 10:47:45 01/29/07 (0)
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