Power to drive horns

jamikl · 5th November 2007, 11:10 PM

Several times it has been mentioned on threads that a given speaker is too weak to drive say a mid range horn to higher frequencies. What TS parameters cover this and what range should I be looking for in these parameters.

How much effect does the cone stiffness have when loaded by a horn and what is best here. I am asking about cone drivers, not compression drivers. Hope somebody can assist.
jamikl

Magnetar · 5th November 2007, 11:39 PM

Theory says look at the EBP or efficiency bandpass product - (EBP is equal to the driver's resonant frequency (Fs) divided by its electrical damping factor (Qes))- normally the higher the EBP the better when your wanting an extended high frequency cone midrange horn/system. Light cone and powerful motor.

Read the Dinsdale and Edgar articles here

jamikl · 6th November 2007, 05:15 AM

Thanks for the help and the link Magnetar.
jamikl

Magnetar · 6th November 2007, 10:46 AM

Look for an EBP above 270 and a tilted rising response beyond the bandwidth you want to cover. As you can see in the Edgar article the theory is just a theory - but a fine place to start. Buying drivers and trying them gets expensive. If you don't need a lot of power handling the little JBL 2105 (LE5) is a safe bet. It is limited to around 30 watts at 105 db/w

5th November 2007, 11:10 PM	#1
jamikl diyAudio Member Join Date: May 2005 Location: Melbourne	Power to drive horns Several times it has been mentioned on threads that a given speaker is too weak to drive say a mid range horn to higher frequencies. What TS parameters cover this and what range should I be looking for in these parameters. How much effect does the cone stiffness have when loaded by a horn and what is best here. I am asking about cone drivers, not compression drivers. Hope somebody can assist. jamikl

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5th November 2007, 11:39 PM	#2
Magnetar Banned Join Date: Feb 2004 Location: Portal 2012	Theory says look at the EBP or efficiency bandpass product - (EBP is equal to the driver's resonant frequency (Fs) divided by its electrical damping factor (Qes))- normally the higher the EBP the better when your wanting an extended high frequency cone midrange horn/system. Light cone and powerful motor. Read the Dinsdale and Edgar articles here

6th November 2007, 05:15 AM	#3
jamikl diyAudio Member Join Date: May 2005 Location: Melbourne	Thanks for the help and the link Magnetar. jamikl

6th November 2007, 10:46 AM	#4
Magnetar Banned Join Date: Feb 2004 Location: Portal 2012	Look for an EBP above 270 and a tilted rising response beyond the bandwidth you want to cover. As you can see in the Edgar article the theory is just a theory - but a fine place to start. Buying drivers and trying them gets expensive. If you don't need a lot of power handling the little JBL 2105 (LE5) is a safe bet. It is limited to around 30 watts at 105 db/w

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