Posted by freddyi on March 30, 2001 at 17:33:55

In Reply to: Re: Are all screw-on piezo horn drivers similar ? posted by Wayne Parham on March 30, 2001 at 17:01:28:

Wayne -

A Piezo can be quite good - I wouldn't worry about the rising Z using with a tube amp IF its a speaker without an xover on the woofer but has a 'Zoebel" conjugate network on that woofer - then the overall Z seen will be ~ that of the woofer plus conjugate in he xover region.

I might want a small resistor in series with the piezo in case the amp doesn't like capacitive loads at HF - what value of series do you suggest? (I think~2 ohm ok without much loss)

btw - you can try using a little speaker distribution xformer to get more spl out of the piezo - I think you then need a conjugate RL network to compensate for the capacitive nature - you might get ~105dB sensitivity that way - kinda a hassle when Foster horns are available cheap

Best Wishes!!!!!

Freddy

• More piezo stuff - high order networks, etc. Wayne Parham 14:36:48 03/31/01 (8)
  • Re: More piezo stuff - high order networks, etc. Paul C. 00:07:34 05/03/01 (7)
    • Re: More piezo stuff - high order networks, etc. Wayne Parham 00:42:05 05/03/01 (5)
      • Re: More piezo stuff - high order networks, etc. Paul C. 01:34:39 05/03/01 (4)
        • Re: More piezo stuff - high order networks, etc. Wayne Parham 01:53:44 05/03/01 (3)
          • Re: More piezo stuff - high order networks, etc. Paul C. 02:27:34 05/03/01 (2)
            • Re: More piezo stuff - high order networks, etc. Wayne Parham 03:12:42 05/03/01 (1)
              • Re: More piezo stuff - high order networks, etc. Paul C. 15:24:16 05/09/01 (0)
• Re: Are all screw-on piezo -thanx Motorola sheet - using piezo w. tube Wayne Parham 20:24:43 03/30/01 (0)