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RE: Tri-amping T IV-A's with tubes?

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In Reply to: RE: Tri-amping T IV-A's with tubes? posted by AkuAnkka on December 03, 2024 at 03:16:30

I have used a Denon minireceiver for my 3.6 for a while. Output was like 2x45 W in 4 Ohm. Later, I went to something like 2x130 W and then
4x260 W. The peak power for higher frequencies is almost as high as for the bass. Most Magnepans are not as efficient as the numbers on the Magnepan's spec. I have measured something like 82-83 dB/2.83 V.

Follow Ups:

RE: Tri-amping T IV-A's with tubes? - AkuAnkka 04:17:36 12/03/24 (4)
Roger, are you sure about this: "The peak power for higher frequencies is almost as high as for the bass"??

For example, at PS Audio's web page it is said that "It takes a ton of energy to reproduce bass notes, but not a great deal as the scale goes upwards. Fact is, most tweeters never see more than a few watts."

https://www.psaudio.com/blogs/pauls-posts/tweeter-power?srsltid=AfmBOoolGcWuHJHrs-ksa08d11QtZEmouUrLOXbaKXvLxV0gsN5o31C1
- RE: Tri-amping T IV-A's with tubes? - Roger Gustavsson 08:07:00 12/03/24 (3)
  Here are two examples:
  Michael Jackson - Don't stop til you get enough, the upper curve
  
  Michael Ruff - Wishing Well, orange below 100 Hz, blue above 100 Hz
  
  Edits: 12/03/24
  - RE: Tri-amping T IV-A's with tubes? - AkuAnkka 09:52:09 12/03/24 (2)
    Thanks again Roger, but I don't have a clue what these images should tell me regarding the tweeter's power needs? :-)
    - RE: Roger's comment ... - andyr 13:25:30 12/05/24 (0)
      " My advice is still to have similar power on basses and mid/tweeter " ... I would agree.
      
      I used (ss amps):
      * 180w into 4 ohms on the bass panels
      * and 120w into 4 ohms on the mids & ribbons (3ohm ribbons).
    - RE: Tri-amping T IV-A's with tubes? - Roger Gustavsson 10:06:17 12/03/24 (0)
      The one on top, shows the same level from bass to tweeter.
      
      The second one, shows a higher power demand for frequencies above 100 than below, 3 times more.
      
      These are peak level not average. Musik is peak level, not sinus.
      
      My advice is still to have similar power on basses and mid/tweeter.

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