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-   -   Your way to choose drivers (http://www.diyaudio.com/forums/multi-way/198997-your-way-choose-drivers.html)

alspe 21st October 2011 03:22 PM

Your way to choose drivers
 
What is your way to choose drivers for your multiway design?

What are most important details you watch?

----

sensitivity between each driver?

sensitivity overall?

frequency response, smoothness?

impedance trace peaks?

distortion measurements from somewhere?

usable bandwidth outside band?

price/value?

Pano 21st October 2011 03:50 PM

Good looks is what I go on. ;)

Inductor 21st October 2011 03:57 PM

It should be well documented and well built.:D
Also no metal diaphragms is usually a good policy (to say what I don't look for).
When choosing drivers (let's say for a 2-Way, a 3-Way or a PA) is different from when comparing drivers and from when simulating loudspeakers (and crossover), you need a well documented driver and/or measuring equipment.
Usually the sensitivity is a good sign of the "quality" but,
You look for other things first when building let's say a 3-Way.
Here I would look first for the best Mid driver. Usually beginers will look for the woofers they like first. So where are you starting first, and what type of drivers are you looking for.

Loudspeaker Selection
http://www.parts-express.com/resourc...-a-speaker.cfm

Helmuth 21st October 2011 03:57 PM

Quote:

Originally Posted by alspe (Post 2753776)
What is your way to choose drivers for your multiway design?

What are most important details you watch?

----

sensitivity between each driver?

sensitivity overall?

frequency response, smoothness?

impedance trace peaks?

distortion measurements from somewhere?

usable bandwidth outside band?

price/value?

you forgot

Rms
Qes
Qts
Step response
Waterfall;)

Helmuth 21st October 2011 04:45 PM

X max

Charles Darwin 21st October 2011 05:37 PM

Frequency response,
distortion,
Xmax,
waterfall
and price.

Cal Weldon 21st October 2011 05:42 PM

Start by buying the midrange and a 4X4 sheet of plywood. Mount it in the center and listen to just them. If you like what you hear, the rest will be easy.

DrDyna 21st October 2011 06:24 PM

I usually have a design in my head first and then choose drivers based on how well they fit into my plan, or I pick one driver I really like (specs / unique design) and find mates for it, such as this woofer:

ScanSpeak Illuminator 18WU/8741T 7" Woofer, 8 ohm: Madisound Speaker Store

Dreaming about what tweeter would work with it has woken me up quite a few nights!

crazyhub 21st October 2011 07:25 PM

Quote:

Originally Posted by alspe (Post 2753776)
What is your way to choose drivers for your multiway design?

What are most important details you watch?

Targeted bandpass width, volume and efficiency usually are of main importance in my design criteria.
As speaker design always is a matter of compromises I try to keep the highest level possible on a mix of all the caracteristics of the selected drivers.
I never favour one single caracteristic to the detriment of all the others.:)

rabbitz 22nd October 2011 07:02 AM

Quote:

Originally Posted by alspe (Post 2753776)
What is your way to choose drivers for your multiway design?

What are most important details you watch?

----

sensitivity between each driver?

sensitivity overall?

frequency response, smoothness?

impedance trace peaks?

distortion measurements from somewhere?

usable bandwidth outside band?

price/value?

Good list. Besides those I look for how it's going to work in the crossover and suitability for the intended application.

Correct driver choice is most important and get it right and you're more than half way there. Get it wrong and can end in tears.


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