KEF B110 SP1057 anybody have one (or 2)? - diyAudio
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Old 18th December 2008, 02:30 AM   #1
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Question KEF B110 SP1057 anybody have one (or 2)?

My KEF Reference Series Model 101 speaker has one non-functional B110 SP1057 mid-bass driver. javascript:smilie('')

Anybody have one to sell? ( or two)?
Here info on the 101 speaker
http://www.kef.com/history/1970/model101.asp

OR
have a suggestion about a suitable replacement?...anyone try the Monacor SPH 135ad?

Thanks,
Luis
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Old 18th December 2008, 04:03 AM   #2
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They show up occasionally on Ebay. Maybe someone else can comment on substituting a different driver.
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Old 18th December 2008, 12:05 PM   #3
SaSi is offline SaSi  Greece
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The B110 does show up on ebay occasionally (more often now than a few months ago) but most of the units are either beat up '60s models or the earlier SP1003.

I have seen one or two show up once and they sold for a crazy amount.

I do have a couple of SP1057 that used for a CS1 style pair some 25 years ago. I also bought a few SP1003 and some T27 as I want to make a full 5.1 system with those.

I tried a fairly good condition SP1003 in place of the SP1057 some weeks ago, replacing only the right loudspeaker's driver so I could do A/B tests in mono and listen to imbalances if they were apparent.

I can say it doesn't bother me at all and I've left it there as I wanted to compare the SP1003 and SP1057 on the bench for differences.

What I'm saying is, you could try for a pair of B110 constructor series drivers when you find them in low prices (<$50 a pair). It most likely will do.
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Old 18th December 2008, 01:24 PM   #4
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The T27/B110 is the heart of the LS3/5A series and commands
rather insane prices.

As an alternative you could look for other speakers that
also use these drivers and buy singles or pairs for
parts retreival.
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Old 18th December 2008, 02:18 PM   #5
sreten is offline sreten  United Kingdom
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Click the image to open in full size.

from : http://www.hifiloudspeakers.info/Ana...lery/index.htm

Hi,

As you can see in the crossover there is a series notch network
that presumably should be matched to a particular B110 version.

The actual speakers claim to be matched within 0.5dB.

Driver substitution ?

http://www.monacor.de/typo3/index.ph...&suche=sph-135

Click the image to open in full size.

I've seen the SPH-135C suggested, it does seem to have
a midrange peak, but it seems higher than the nominal
1kHz trap filter in the 101 crossover. Not a good idea IMO.

I think you must use the correct version of the B110.
The saving grace is that it is not the same version as the LS3/5A.

/sreten.
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Old 18th December 2008, 02:21 PM   #6
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Quote:
Originally posted by CaliforniaBob
The T27/B110 is the heart of the LS3/5A series and commands
rather insane prices.

As an alternative you could look for other speakers that
also use these drivers and buy singles or pairs for
parts retreival.
I gave two sets away last year for free. They were personal NOS circa 1978.
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Old 19th December 2008, 03:52 AM   #7
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Default about the B110 SP1057 for my KEF 101

Well, thanks to everyone. I will look for 1 or 2 on EBAY...good suggestion.
and

in terms of finding a used speaker to buy...that uses that EXACT SP1057 version of the B110...anyone know a specific model of speaker that uses that SP1057??

It's not the LS35A for sure.....it uses the SP1003

( I may even try buying a SP1003 version and plunk it in - see how it sounds)

Thanks,
Luis
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Old 19th December 2008, 04:26 AM   #8
bjorno is offline bjorno  Sweden
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Hi larezreyes,

Quote:
KEF B110 SP1057 anybody have one (or 2)
I have 6 Kef SP1057 in mint condition, They are never used and are in original wrappings .

For the moment I can spare 2 of those for a reasonable price.
You have to mail me a fair bid for 2 in US $ if you are interested.

b
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Old 13th January 2009, 08:15 PM   #9
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Default kef sp1057

Do you still have those drivers? I am very interested in a pair of them if you do. Contact me at seanbagby@hughes.net
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Old 9th December 2009, 07:59 PM   #10
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Default B110 for $15 on Ebay

There is a B110 for sale on EBAY for $15 !
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