Hello!
I am looking for a crossover schematic for the Snell K III.
I have found only the schematic for the K I..
Can anyone help me?
Many thanx!
regards
Reza
I am looking for a crossover schematic for the Snell K III.
I have found only the schematic for the K I..
Can anyone help me?
Many thanx!
regards
Reza
You gave up on that easily! 😛
What's the secret of Snell speakers? Well 4 ohm high Qms bass with foam surround really. Big baffle too. Quite a low second order crossover around 2.7kHz. Robust tweeters like the Vifa D20 or Hiquphon OW1. And ferrofluid can rescue you from power handling problems with tweeters, because Snell did stress tweeters.
The Snell K III seems to be a specialist polypropylene cone 8" bass. Can't be much different from a Snell K II. Maybe it's some 4 ohm variant on the Vifa P21WO:
Snell Type K/II loudspeaker | Stereophile.com
I'm winging bit a bit here, but I think you should try some trusty high Qms German Visaton paper drivers, like the 4 ohm Visaton W200S 4 ohm in a 30L closed box. After all, Snell used paper and reed cones too. Rubber surround shouldn't be a deal-breaker, DeVore uses it in the Orangutan 96.
Anyway here's where I got with Boxsim simulation with a Snell-type crossover. I used a 56cm x 26cm baffle on closed box and that dull looking Visaton G20SC. It all looks quite reasonable. It works with the 8 ohm woofer too. 🙂
What's the secret of Snell speakers? Well 4 ohm high Qms bass with foam surround really. Big baffle too. Quite a low second order crossover around 2.7kHz. Robust tweeters like the Vifa D20 or Hiquphon OW1. And ferrofluid can rescue you from power handling problems with tweeters, because Snell did stress tweeters.
The Snell K III seems to be a specialist polypropylene cone 8" bass. Can't be much different from a Snell K II. Maybe it's some 4 ohm variant on the Vifa P21WO:
Snell Type K/II loudspeaker | Stereophile.com
I'm winging bit a bit here, but I think you should try some trusty high Qms German Visaton paper drivers, like the 4 ohm Visaton W200S 4 ohm in a 30L closed box. After all, Snell used paper and reed cones too. Rubber surround shouldn't be a deal-breaker, DeVore uses it in the Orangutan 96.
Anyway here's where I got with Boxsim simulation with a Snell-type crossover. I used a 56cm x 26cm baffle on closed box and that dull looking Visaton G20SC. It all looks quite reasonable. It works with the 8 ohm woofer too. 🙂
Attachments
You seem to be missing the point:
Any change in the drivers or cabinet will require a different network.
Also, Snell hand tuned each speaker prior to shipment, about 20 minutes were allowed for this, depending on the model.
I'm not sure which Snell you are showing, it looks nothing like the model K's that I have had on my bench for repair.
Any change in the drivers or cabinet will require a different network.
Also, Snell hand tuned each speaker prior to shipment, about 20 minutes were allowed for this, depending on the model.
I'm not sure which Snell you are showing, it looks nothing like the model K's that I have had on my bench for repair.
djk, you're a fat lot of help in this thread. All a big secret, eh?
You can also still obtain modern drivers in the Snell tradition from Audio Note:
ANK Audiokits - Audio Note Speaker Kits
Some of the design features are discussed here:
http://www.diyaudio.com/forums/multi-way/147632-classic-monitor-designs-17.html#post4358469
You can also still obtain modern drivers in the Snell tradition from Audio Note:
ANK Audiokits - Audio Note Speaker Kits
Some of the design features are discussed here:
http://www.diyaudio.com/forums/multi-way/147632-classic-monitor-designs-17.html#post4358469
"you're a fat lot of help in this thread"
You still don't get it, do you?
If you expect good results, everything must be designed as a whole, by someone who has test equipment, and knows what they are doing.
My advice: build a proven design, from a proven designer.
You still don't get it, do you?
If you expect good results, everything must be designed as a whole, by someone who has test equipment, and knows what they are doing.
My advice: build a proven design, from a proven designer.
It's rare that I get cross at this forum, I usually reserve that for sreten, but really djk, you take the biscuit. 🙄
Here you are, supposedly, with a Snell K speaker on your bench for repair. But with your huge alleged competence, you can't measure some simple coils and caps. 😕
You say simply leave it to the experts. Well who are they? Is a six element second order crossover that hard? I don't think so. 🙄
Snell speakers were admirably based on efficient drivers. As was my modelling with Visaton drivers.
"Here you are, supposedly, with a Snell K speaker on your bench for repair"
Boy, you sure can't read and comprehend, can you?
I said:
"it looks nothing like the model K's that I have had on my bench for repair. "
Nowhere is there an implication that I have one on the bench currently.
My points are valid, and you choose to ignore them.
Do what you like (I'm sure you will anyway).
Boy, you sure can't read and comprehend, can you?
I said:
"it looks nothing like the model K's that I have had on my bench for repair. "
Nowhere is there an implication that I have one on the bench currently.
My points are valid, and you choose to ignore them.
Do what you like (I'm sure you will anyway).
My mistake on what you have on your bench. 😱
Nevertheless, the hectoring tone may have discouraged a newbie to our lovely hobby from having a bash at his/her own design. 😡
A homage to Snell in the high efficiency direction, maybe not exact in all respects, but something that will satisfy.
Troles Gravesen follows that high Qms 8" plus tweeter muse: TQWT-
I like the cheap as chips 30L Visaton W200S-4 and TW70 idea: 6moons audio reviews: WLM La Scala.
Because you can always hear the transition from 8" bass to 1" tweeter as a sort of irritating extreme brightness in the power at the top from the soft dome. Closed box or reflex is up to you. But the filters are simple, especially with 4 ohm bass.
Nevertheless, the hectoring tone may have discouraged a newbie to our lovely hobby from having a bash at his/her own design. 😡
A homage to Snell in the high efficiency direction, maybe not exact in all respects, but something that will satisfy.
Troles Gravesen follows that high Qms 8" plus tweeter muse: TQWT-
I like the cheap as chips 30L Visaton W200S-4 and TW70 idea: 6moons audio reviews: WLM La Scala.
Because you can always hear the transition from 8" bass to 1" tweeter as a sort of irritating extreme brightness in the power at the top from the soft dome. Closed box or reflex is up to you. But the filters are simple, especially with 4 ohm bass.
Attachments
"Nevertheless, the hectoring tone may have discouraged a newbie to our lovely hobby from having a bash at his/her own design."
That was my intent. Unless he is willing to invest his time and money on buying some test equipment and learning to use it I worry about his success.
I used to build a 6-1/2" two-way with a Vifa waveguide tweeter and a Gefco woofer. There were ten parts in the network to achive an acoustic LR24 that was time off-set corrected. I sold many parts sets for these. One group of fellows thought they would do their own network design, they had all the proper tools (including my 1/2" B&K mic and cathode follower). They were not successful, and ended up using my network design (done without aid of a computer).
That was my intent. Unless he is willing to invest his time and money on buying some test equipment and learning to use it I worry about his success.
I used to build a 6-1/2" two-way with a Vifa waveguide tweeter and a Gefco woofer. There were ten parts in the network to achive an acoustic LR24 that was time off-set corrected. I sold many parts sets for these. One group of fellows thought they would do their own network design, they had all the proper tools (including my 1/2" B&K mic and cathode follower). They were not successful, and ended up using my network design (done without aid of a computer).
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