Biamped speakers

[wiggers]

I had some sliced paper drivers (ScanSpeak Revelator 18W/8531G-00) and decided to build a floor-stander around them. I found a design that was pretty close at Wilmslow Audio, the Vogue (https://www.wilmslowaudio.co.uk/vogue---classic-1745-p.asp), and increased the volume to 40l. They cut the wood for me and I assembled it lining with acoustic foam:

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I used a different reflex port, to match the driver and volume, and I think I've got it about right.

26897

The nanoDIGI is the heart of the system, with a crossover set at 1kHz, 48dB/8ve Linkwitz-Riley. The tweeters are T25CF002 Millenium.

Happy to answer any questions, although it was a few years ago now!

[EDIT] There's another design for the 8531 here: http://www.troelsgravesen.dk/SP95.htm

[Frazeur1]

Those look very nice, great job!

[walpurgis]

Is there a reason the 1kHz crossover point was chosen? Seems low.

[wiggers]

The response of the mid-range driver started doing strange things above 1k and the tweeter has a good low end so I chose 1k from eyeballing the curves.