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Cadenza crossover upgrade?

 
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rrabbit
Introductory Contributor


Joined: 01 Aug 2004
Posts: 1
Location: London

PostPosted: Sun Aug 01, 2004 3:09 pm    Post subject: Cadenza crossover upgrade? Reply with quote

I have a pair of Cadenzas bought in 1976 which are still in excellent working order. They are mounted on 4in-high stands. Though I love them dearly, they still have, to my ears, a fault that can become annoying: a slight muddliness in the lower register, with a lack of definition and occasional boominess in the extreme bass.

While this may be due to using them in too small a room (23ft x 15ft x 9ft high) or with inferior cables (about 15ft of ordinary bell wire), a friend told me that (1) updated crossover units would solve the problem, and that (2) such units are commercially available but I've forgotten where, and he has since, inconveniently, died. Are either or both of these statements true? Where can I find updated crossovers? If available, are they difficult to fit? And will I notice the difference?
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BobL
Intermediate Contributor 25+


Joined: 27 Jan 2004
Posts: 38
Location: West Midlands, UK

PostPosted: Sun Aug 01, 2004 4:27 pm    Post subject: Reply with quote

I can't answer your questions directly but one thing you need to be aware of is that the capacitors in your original xover are long since well shot. 10-15 years max KEF told me then you must replace them.

So fitting a new xover will, if nothing else - fix the above.

Cheers,

Bob.
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terry
Senior Contributor 200+


Joined: 22 Apr 2003
Posts: 262
Location: UK

PostPosted: Mon Aug 02, 2004 9:30 am    Post subject: Re: Cadenza crossover upgrade? Reply with quote

rrabbit wrote:
I have a pair of Cadenzas bought in 1976 which are still in excellent working order. They are mounted on 4in-high stands. Though I love them dearly, they still have, to my ears, a fault that can become annoying: a slight muddliness in the lower register, with a lack of definition and occasional boominess in the extreme bass.


Have you got the Cadenzas spiked? Also sit the spikes on a concrete block or similar. This will tighten bass and give increased clarity. You will be amazed.

rrabbit wrote:
While this may be due to using them in too small a room (23ft x 15ft x 9ft high) or with inferior cables (about 15ft of ordinary bell wire), a friend told me that (1) updated crossover units would solve the problem, and that (2) such units are commercially available but I've forgotten where, and he has since, inconveniently, died. Are either or both of these statements true? Where can I find updated crossovers? If available, are they difficult to fit? And will I notice the difference?


I'm not convinced you need to change the crossovers but they are not expensive and it could be worth a try. You will be able to buy them from Falcon Acoustics. See 103 or perhaps even better 103aB on the price list. For another 3GBP the aB provides the Acoustic Butterworth improvement. See it mentioned under the KEF 104aB on this site. I suspect however that spiking is what you require and you will hear a dramatic improvement as long as your source and amp are up to the task.


Terry


Last edited by terry on Mon Aug 02, 2004 9:54 am; edited 1 time in total
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ian t
Junior Contributor 10+


Joined: 16 Jul 2004
Posts: 15
Location: Australia

PostPosted: Mon Aug 02, 2004 9:42 am    Post subject: re cadenza upgrade Reply with quote

Dick Pierce the well known speaker guru described a mod he performed on his KEF R104AB to solve this very problem.Worth investigating-

http://groups.google.com.au/groups?q=dick+pierce+kef+104&hl=en&lr=&ie=UTF-8&selm=1505%40teddy.UUCP&rnum=1
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