Impedance Correction in Single Drivers

Vilic Gabrielia · 23rd October 2012, 01:05 AM

Hello friends. In the world of Multi Drivers and of Crossovers, the Impedance Correction Circuitery called "Zobels" is of importance to flaten the overall impedance of driver(s).

my question is;
How important or not, is the same circuit in a Single Driver situation. Would having one take away from sound quality?

Thanking you in advance,
Vilic

planet10 · 23rd October 2012, 01:09 AM

Quote:

Originally Posted by Vilic Gabrielia

How important or not, is the same circuit in a Single Driver situation. Would having one take away from sound quality?

It depends on your amplifier.

dave

Bob Brines · 23rd October 2012, 01:56 AM

If you have a hi-Z amp or a large BSC filter, you can use a series resistor and cap to tailor the high end frequency response. But it is not a zobel per se because you are adjusting for the FR shape, not the impedance shape.

Bob

larryldspkr · 23rd October 2012, 02:19 AM

I have found that you can get a nice flat impedance curve on a fullrange with a zobel, at the expense of some top end roll off (not usually a good thing). If your driver is really HOT on top, this may help.

Larry

Vilic Gabrielia · 24th October 2012, 01:02 AM

Hello again and thank you very much for replying. The story is that I want to build a small TL with a 2" Tang Band driver. (W2-1803S) I do not want to add any Xover component if I can. But, if I have to say add just a cap to cutoff the low end (to protect the driver in higher levels of volume), how much of sound quality loss (i.e. staging, transition...) I should be expecting, using a regular transistor amp?
Thanks again,
Vilic

23rd October 2012, 01:05 AM	#1
Vilic Gabrielia diyAudio Member Join Date: Aug 2003 Location: Toronto	Impedance Correction in Single Drivers Hello friends. In the world of Multi Drivers and of Crossovers, the Impedance Correction Circuitery called "Zobels" is of importance to flaten the overall impedance of driver(s). my question is; How important or not, is the same circuit in a Single Driver situation. Would having one take away from sound quality? Thanking you in advance, Vilic

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
SPDIF impedance correction	Koenjer	Digital Source	44	23rd January 2012 09:39 AM
Impedance correction for old Fe103 (zobel)	TKsys	Full Range	2	20th March 2007 06:09 PM
How much do you focus on impedance correction?	mr_push_pull	Multi-Way	12	8th October 2004 02:22 AM
Impedance correction	Ralph	Multi-Way	2	15th August 2003 09:25 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

23rd October 2012, 01:56 AM	#3
Bob Brines diyAudio Member Join Date: Jan 2003 Location: Hot Spring Village AR	If you have a hi-Z amp or a large BSC filter, you can use a series resistor and cap to tailor the high end frequency response. But it is not a zobel per se because you are adjusting for the FR shape, not the impedance shape. Bob

23rd October 2012, 02:19 AM	#4
larryldspkr diyAudio Member Join Date: Nov 2007	I have found that you can get a nice flat impedance curve on a fullrange with a zobel, at the expense of some top end roll off (not usually a good thing). If your driver is really HOT on top, this may help. Larry

24th October 2012, 01:02 AM	#5
Vilic Gabrielia diyAudio Member Join Date: Aug 2003 Location: Toronto	Hello again and thank you very much for replying. The story is that I want to build a small TL with a 2" Tang Band driver. (W2-1803S) I do not want to add any Xover component if I can. But, if I have to say add just a cap to cutoff the low end (to protect the driver in higher levels of volume), how much of sound quality loss (i.e. staging, transition...) I should be expecting, using a regular transistor amp? Thanks again, Vilic