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Buchardt Audio S400

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#61
That's a cool video. I had no idea the cabinets were made out of cast metal.
Ron, you might be interested in the cabinet design portion of this KEF whitepaper published for the LS50
https://www.kefdirect.com/pub/media/wysiwyg/documents/ls50/ls50_white_paper.pdf

Cabinet performance has historically been difficult to characterize - building heavy and rigid is probably not a bad thing but the KEF paper points to some interesting alternatives such as lossy elastomeric substances between braces. They also brace woofer basket which strikes me as a pretty good idea.
 

Ron Texas

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#62
Ron, you might be interested in the cabinet design portion of this KEF whitepaper published for the LS50
https://www.kefdirect.com/pub/media/wysiwyg/documents/ls50/ls50_white_paper.pdf

Cabinet performance has historically been difficult to characterize - building heavy and rigid is probably not a bad thing but the KEF paper points to some interesting alternatives such as lossy elastomeric substances between braces. They also brace woofer basket which strikes me as a pretty good idea.
I have LS50's They seem to be exceptionally solid.
 

andreasmaaan

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#63
It wouldn't be Kimmo Saunisto's website would it? What I'm looking for is a measured design using a reasonably normal hifi type driver. Really interested more in cardioid for 100-500hz more than anything.
Honestly can’t recall, sorry. Was ages ago I saw it. Was specifically focused on the lower midrange IIRC. Anyway, will scratch around when I’m back home this evening :)
 
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#64
So LS50 and LS 3/5a are both pretty narrow but not so smooth.

(Note the graph starts at 200Hz.. they all have a different scale and hiding lower frequency measurement, this is misleading if not careful)

ls50_white_paper_pdf.png


ls50_white_paper_pdf.png
 

Aprude51

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#65
Although I don’t have anything to add regarding some of the questions posed about the S400s (e.g. cabinet design, relative importance of polar response), I wanted to mention that I’ve experienced excellent customer service and communication when dealing with Buchardt. I preordered a pair of S400 and Mads (who appears to answer all emails himself!?!?!) has been super responsive and helpful throughout the process.

its great to see a consumer audiophile brand that combines a direct-to-consumer model and an evidence based approach to product design generate a lot of interest within the audiophile community (well at least among online reviewers).
 

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