jeff macualay's MFB DIY loudskeaker project

[somakmaitra]

hi

have any one done the motional feedback project that was published in the sept & oct 2002 of electronics world ?
the circuit is very interesting without a crossover having a two Way MTM layout .

regards ,
somak

 

[Tim F]

I have not done the kit or seen the article but there is a company in the u.k. selling this as a kit follow this link
I dont know if this will be helpful to you but I suppose all information you gather helps with making a decision.

 

[navin]

feedback has its limiations. velodyne uses it to great effect on its subs. wont recomend it for much above 100Hz.

 

[somakmaitra]

HI NAVIN ,

THE ARTICLE IS VERY INTERESTING AND THE LACK OF CROSSOVER IS REALLY INTRIGUING .
I DID MAKE A BOX WITHOUT A CROSSOVER BASED ON A BOOK ON PHILIPS SPEAKER PROJECT . IT ONLY HAD A SMALL CAP ON THE TWEETER THE OUTPUT WAS QUITE GOOD .
HAVE YOU READ THE ARTICLE ?
REGARDS

SOMAK

 

[JOE DIRT®]

most speakers that are cheap only do have a cap on the tweeter to prevent lower frenquencies from burning out...they use the woofers natural roll off as the crossover...this can be effective with certain drivers....Hell sometimes my alarm clock radio sounds good😉

 

[mrfeedback]

Simple Can Be GOOD !.

An impedence compensated 8" and and impedence compensated 1" can sound stunningly good with the tweeter fed in on 1.1111 uF or so.
Perfectly revealing of AP though.

Eric.

 

[navin]

actually i thought it was a active speaker. this link dont say much
https://secure.wilmslow-audio.co.uk/acatalog/Wilmslow_Audio_TYING_THE_KNOT__76.html

 

[somakmaitra]

hi navin ,
i can mail u the details if you like .
the project sounds interesting .
but i still dont have the first part .


regards ,
somak

 

[navin]

ok. might make intersting reading.