SET Asylum

At the risk of sounding repetitive ...

58.171.241.0

In Reply to: RE: How useful a solution is a parallel SE amp? posted by andy evans on February 28, 2008 at 03:25:00

There's absolutely nothing wrong with Parallel SETs, with careful design. There are even some advantages, lower primary impedance being one of them. But if even more headroom is what you are after then consider biasing for A1 but driving into A2 on peaks. It's possible to get get 30W out of a pair of 300Bs this way. Of course you could apply the same to a single OP tube and get half of this if it's enough for your application. My Parallel 845s have been running in this configuration for longer than I care to remember without ever missing a beat!

Rgds,
Naz

Follow Ups:

I'd think 30W out is an impossible number for 2X 300B! - Thomas Martens 18:17:39 03/03/08 (4)
- You guys are missing my point and its not ground breaking ... - Naz 04:34:32 03/04/08 (2)
  - Oops - sorry - Paul Joppa 09:28:22 03/04/08 (1)
    - RE: Oops - sorry - Naz 22:40:26 03/04/08 (0)
- RE: I'd think 30W out is an impossible number for 2X 300B! - Paul Joppa 19:34:39 03/03/08 (0)
RE: At the risk of sounding repetitive ... - drlowmu 06:39:59 03/02/08 (11)
- RE: At the risk of sounding repetitive ... - Naz 14:19:08 03/02/08 (10)
  - "huge full range speakers..." - somejoe 14:33:01 03/02/08 (9)
    - I hoped no-one would ask ... - Naz 15:57:07 03/02/08 (8)
      - Wow, truly a majestic and tidy system arrangement! - Thomas Martens 18:22:32 03/03/08 (0)
      - Daaaaamn! Now that is FINE. - Ed Sawyer 18:05:15 03/02/08 (3)
        
        Thanks Ed ... - Naz 19:46:00 03/02/08 (2)
        
        RE: Thanks Ed ... - Ed Sawyer 18:35:52 03/27/08 (1)
        
        RE: Thanks Ed ... - Naz 20:02:07 03/27/08 (0)
      - Sweeeeet - all ML system!!! - somejoe 16:37:43 03/02/08 (1)
        
        RE: Sweeeeet - all ML system!!! - Naz 17:43:18 03/02/08 (0)
      - Naz, That system photo is absolutely beautiful!! nt - Salectric 16:06:59 03/02/08 (0)

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