|
Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
|
|
|
Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
|
In Reply to: Relationship between power, frequency, and sound level posted by Doublej on April 2, 2022 at 07:17:25:
Drivers - transducers - have a range of frequency that they can reproduce
this is strongly affected by the enclosure/cabinet / mounting of the transducer
Each transducer has a range of power handling 'capacity'
typically it need a minimum amount of power to function, and has a maximum that is defined by the limits of materials and the effect of the power applied (heat can melt the insulation of voice coils, shorting out the coil, high voltage can cause sparking or over excursion in electrostatic transducers which can damage/destroy the membrane-
typically the effect of frequency is to change the resistive value of the transducer. this is often displayed as an inverse curve showing SPL over frequency at a fixed power level.
efficiency is usually measured by the speaker Manufacturer, and can be measured at any of the following options (not standardized)
-a single frequency (say 1,000Hz)
-several frequencies - together as a basket of sound, or independently and then summed...
-use Pink Noise which is a combination of all frequencies
there are also other considerations -
-are you measuring one transducer ? or multiple?
-if multiple, on axis of the most/least efficient?
or center axis of the enclosure...
In a 'speaker' there are often multiple transducers combined with a crossover (to divide frequencies amongst the transducers) and an enclosure. Each has a role/part to play in the efficiency, frequency response of the speaker.
If you want to measure the response/performance of an individual transducer, at a given frequency, you will need a bit of equipment-
The ratings from Manufacturers are not harmonized - which is to say that they do not always disclose all the details of how they measured their speaker for efficiency which makes comparing them difficult at best...
I am not sur if I answered your question; however I am not sure what you are looking for...
happy to discuss -
the link below should help
Happy Listening
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Relationship between power, frequency, and sound level - 6bq5 18:14:41 07/27/22 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
