I have found myself in the possession of Wharfedale Linton 2's. Like the boxes and was considering a complete update of units and crossover. Anyone have known combo's or experience of what works?
There are so many possible driver combinations to consider for that retro teak veneered cabinet that it would be a mammoth task to go through them all.
If you don't find a member of this forum who has successfully updated a Linton 2 then I suggest you contact the specialists at Wilmslow Audio.
Speaker Repair, Speaker Kits, Loudspeaker Repair, Kits and Drive Units, Subwoofer Amplifier Kit
If you don't find a member of this forum who has successfully updated a Linton 2 then I suggest you contact the specialists at Wilmslow Audio.
Speaker Repair, Speaker Kits, Loudspeaker Repair, Kits and Drive Units, Subwoofer Amplifier Kit
Wharferdale drivers are usually better than their crossover parts.
Replacing drivers alone is the hardest possible thing for a newbie. Please, just buy a new speaker kit.
However, replacing caps is worthwhile. 🙂 Try Clarity ESA or Mundorf MKP for the tweeter (is this a 3 way with coaxial mid/tweeter?) and Axon for cheap woofer caps.
Best,
E
Replacing drivers alone is the hardest possible thing for a newbie. Please, just buy a new speaker kit.
However, replacing caps is worthwhile. 🙂 Try Clarity ESA or Mundorf MKP for the tweeter (is this a 3 way with coaxial mid/tweeter?) and Axon for cheap woofer caps.
Best,
E
I used to have some 8" bass/3" cone tweeter Wharfedale Linton 2...
I have some crossover pictures too. Below. Nothing too hard.
I found some cabs in the street years later. IIRC, I fitted an Eminence Alpha or Beta 8A and a loud Audax TW034 1.5" tweeter via some 2.5kHz network. Added a reflex tube and it was good.
These days I'd build a custom crossover. Again, easy enough if you are like me.
I have some crossover pictures too. Below. Nothing too hard.
I found some cabs in the street years later. IIRC, I fitted an Eminence Alpha or Beta 8A and a loud Audax TW034 1.5" tweeter via some 2.5kHz network. Added a reflex tube and it was good.
These days I'd build a custom crossover. Again, easy enough if you are like me.
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Here's some info on the Linton 2:
Two-way sealed box system
200mm bass driver & 50mm mid/treble driver
Four element crossover circuit
Crossover frequency 1,200Hz
Dimensions 480 x 250 x 240 (h x w x d in mm)
Volume 20 litres
Weight 8kg
Two-way sealed box system
200mm bass driver & 50mm mid/treble driver
Four element crossover circuit
Crossover frequency 1,200Hz
Dimensions 480 x 250 x 240 (h x w x d in mm)
Volume 20 litres
Weight 8kg
So... had some more thoughts... have some nice 70's kef b200's lying around and since internal dimensions are similar then potentially a decent tweeter with some form of tweaked chorale crossover may work?
All you need now to simulate KEF Chorales is a pair of T27 (SP1032) tweeters with matching crossovers (SP1015) which are 3,000Hz; 18dB/octave.
Job done!
Job done!
P.S. Lots of KEF T27 tweeters (and cheaper alternatives) are currently available on a popular internet auction site!
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Not a bad plan but as much as a love the t27 its dimensions are slightly off... and was looking for maybe a slightly more update-to-date tweeter...
Look for a tweeter which matches the T27's specifications but fits the Linton 2 cut-out.
The T27's specs may be obtained by searching for 'kef driver spec sheets - madisound'.
However I suspect you may already have these to hand.
The T27's specs may be obtained by searching for 'kef driver spec sheets - madisound'.
However I suspect you may already have these to hand.
For an 8" midbass, there are a few recommendations for the SB Acoustics SB29RDC-4 and Wavecor TW030WA12 tweeters.
The modest cost Dayton RS225P*8 8" paper cone Reference Woofer will work crossed LR4/LR4 at ~1200-1400Hz with the robust 29mm SB Acoustics SB29RDC-4.
The modest cost Dayton RS225P*8 8" paper cone Reference Woofer will work crossed LR4/LR4 at at ~1500Hz to the 30mm + waveguide Wavecor TW030WA12.
Test Bench: Wavecor TW030WA12 30-mm Cloth Waveguide Loaded Tweeter | audioXpress
The Wavecor would be an interesting build. The Parts Express website has Dayton FRD and ZMA data files for easy simulation.
PORTED BOX 1.3cuft
-F3 = 44Hz
PORT = 3" diameter, 8.1" long, flanged on front baffle
PORT = 2" diameter, 3.1" long, flanged on front baffle
The modest cost Dayton RS225P*8 8" paper cone Reference Woofer will work crossed LR4/LR4 at ~1200-1400Hz with the robust 29mm SB Acoustics SB29RDC-4.
The modest cost Dayton RS225P*8 8" paper cone Reference Woofer will work crossed LR4/LR4 at at ~1500Hz to the 30mm + waveguide Wavecor TW030WA12.
Test Bench: Wavecor TW030WA12 30-mm Cloth Waveguide Loaded Tweeter | audioXpress
The Wavecor would be an interesting build. The Parts Express website has Dayton FRD and ZMA data files for easy simulation.
PORTED BOX 1.3cuft
-F3 = 44Hz
PORT = 3" diameter, 8.1" long, flanged on front baffle
PORT = 2" diameter, 3.1" long, flanged on front baffle
An externally hosted image should be here but it was not working when we last tested it.
http://www.t-linespeakers.org/download/T27A_SP1032.pdf
dave
I guess someone called kefkef is mostly interested in KEF! As Dave knows, the Tangent TM1 was a similar take on this popular KEF Chorale bookshelf theme. 😀
OK, let's run with it. If you have a Bextrene KEF B200 SP1014 unit we are in established territory. Though I quite like those old paper Wharfedale units too.
Shouldn't be hard to fit a more modern tweeter if the tweeter cutout on the Linton box makes this easy. What is its diameter, anyway?
Some bumpf on the 20L closed box KEF Chorale below. Falcon Acoustics do an allegedly improved crossover. You can get parts at Wilmslow Audio too.
Adjusting tweeter level is not usually hard. The T27 was a decent enough mylar 3/4" dome. But not the last word. Wharfedale did something similar in the goodish Shelton XP2 design. I might fancy one of the new SB Acoustics ring radiators here for giggles.
The trick with these sort of designs was usually a negative polarity 3rd order 3kHz tweeter, which solves some time-alignment and phase problems.
OK, let's run with it. If you have a Bextrene KEF B200 SP1014 unit we are in established territory. Though I quite like those old paper Wharfedale units too.
Shouldn't be hard to fit a more modern tweeter if the tweeter cutout on the Linton box makes this easy. What is its diameter, anyway?
Some bumpf on the 20L closed box KEF Chorale below. Falcon Acoustics do an allegedly improved crossover. You can get parts at Wilmslow Audio too.
Adjusting tweeter level is not usually hard. The T27 was a decent enough mylar 3/4" dome. But not the last word. Wharfedale did something similar in the goodish Shelton XP2 design. I might fancy one of the new SB Acoustics ring radiators here for giggles.
The trick with these sort of designs was usually a negative polarity 3rd order 3kHz tweeter, which solves some time-alignment and phase problems.
Attachments
Quick text book LR4/LR4 Xsim of popular 8" midbass Peerless R830869-8 + SB_Acoustics 1.1" dimple dome SB29RDC-4. Edge diffraction effects will need to be added to the 8" Peerless SPL for the next level of crossover simulation detail required for a purchase decision. Then... measure twice, purchase LRC once. Simulation of a waveguide tweeter requires FRD files at several different polar offsets which I do not have.
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Hi Steve!
There may be no one in a better position than kefkef himself to choose a suitable tweeter and crossover to match a KEF B200!
However the knock on benefit of this thread is that I get to see more of your speaker photos and crossover schematics!
Keep them coming as I'm totally addicted!
There may be no one in a better position than kefkef himself to choose a suitable tweeter and crossover to match a KEF B200!
However the knock on benefit of this thread is that I get to see more of your speaker photos and crossover schematics!
Keep them coming as I'm totally addicted!
Don't waste time on worn-out old T27 tweeters from fleabay. Get new stuff. And the Peerless 830869 bass looks good, but you have two available basses already, don't you? I'd take either of them on.
I have a lot of fun with the cheap as chips 92mm Monacor HT-22/8. I've also used the metal SEAS 19TAF/G and Morel 1" soft domes, and IMO, 19mm domes sound better than 1" domes.
You just apply the correct theory, which is the Steen Duelund Filter. For 8" bass you just need a bass coil and a bit of impedance correction and use existing third order mechanical rolloff. 4th order negative polarity can work wonders with a tweeter. Below is one of my favourite 4th order efforts. Very clean and undistorted, I used the word "Darkness" to describe its sound, which is where the musical notes seem to be coming out of a quiet background. You'd remove the Zobel for the less bright Monacor.
BTW, I did ask for the tweeter cutout size. Don't get coy if you want serious help here.
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Hi Steve!
Little cone tweeters can sure sound sweet. I've got an old pair of branded RS Components ones (don't know the original manufacturer) of a similar size and power handling and I'm thinking of trying them out in my Denton enclosures for a bit of fun.
P.S. 'Steen Duelund Filter'? That's a new one on me! Will check it out.
Little cone tweeters can sure sound sweet. I've got an old pair of branded RS Components ones (don't know the original manufacturer) of a similar size and power handling and I'm thinking of trying them out in my Denton enclosures for a bit of fun.
P.S. 'Steen Duelund Filter'? That's a new one on me! Will check it out.
It's hard to describe the occasional genius that occurs in life. But, strictly speaking, IMO, Steen Duelund was one of the great speaker Genius's..., the Albert Einstein or Paul Dirac of our humble endeavour in audio.
This was the Guy who realised that a 3-way was not significantly different from a 2-way. A question of simple Alpha.
There are various levels towards the good sound. I simply leave you with the 3-way Steen Duelund solution. 😀
This was the Guy who realised that a 3-way was not significantly different from a 2-way. A question of simple Alpha.
There are various levels towards the good sound. I simply leave you with the 3-way Steen Duelund solution. 😀
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