SET Asylum

RE: Headroom (was RE: SPL)

69.118.107.235

Leo loves music

In Reply to: RE: Headroom (was RE: SPL) posted by Paul Joppa on February 26, 2025 at 11:19:31

I only started using REW and UMM-6 microphone today so I am not familiar with them. 88dB is the louder part of a song. I just burned a test tone CD and will check my JBL horn system for frequency response.

Follow Ups:

RE: Headroom (was RE: SPL) - Paul Joppa 21:18:12 02/26/25 (3)
I see you've selected the slow response - fast would pretty much emulate the traditional VU meter action, but slow is pretty close to that. I'd go with the 14dB headroom if you're listening to non-electronic music. So 88dB means an instantaneous peak of 102dB would be a safe minimum. SET or other tubes with little or no feedback will overload fairly gracefully, so you might get away with 3 to 6 dB less.

That's with two speakers of course - two speakers at 100dB each is 103dB*, and would thus require 0.8 watts per channel.

* Assuming random phase in the reverberant field, which is a pretty good assumption in typical setups.
- 1 meter 100dB - Leo loves music 02:46:52 02/27/25 (2)
  The speaker sensitivity is @1 meter 100dB. In listening position for example 2 meter, it becomes 100 - 6 = 94dB.
  - (~~ laughing as he drags Louis Bellson's drum kit onstage_nT - Cleantimestream 00:40:54 03/12/25 (0)
    !
    The Mind has No Firewall~ U.S. Army War College.
  - That would only happen if your system was out in an open field. nt - Tre' 06:42:06 02/27/25 (0)
    .
    Have Fun and Enjoy the Music
    "Still Working the Problem"
RE: Headroom (was RE: SPL) - Tre' 18:08:10 02/26/25 (0)
Can you set the device (program) on dBA?
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

Edits: 02/26/25

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