SP44, built by Torsten/Germany
Copyright 2012 © Troels Gravesen

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16-05-2012
Hi Troels.
Yesterday, in the evening, I finished temporary the first cabinet … I am impressed :-)
Running now in an mixed environment (old cabs 87db), it is already an improvement in sound … how will it be when both cabs are finished :-) First, Charlie Haden - Nocturne -> very precise Bass and it goes deep, I'm missing nothing, first thought when I had the 18W8531 in my hands … it's tiny.
My cabs have a volume of s.th. around 30 l minus damping and crossover, so, maybe it does not go down like in a bigger volume, but who cares! Second, Diana Krall - Quiet Nights -> The voice of Diana … a new dimension :-) Third, Quadro Nuevo - Mocca flor -> just a smile on my face :-)
And yes, you are correct, no impedance flattening is needed, it sounds like the SP44 is designed for the KT88;-)
Next, Design and wife … This will be a small fight, she does not like the faceting of the front panel … let's see who will win ;-)
Thank you very much for charing those nice Designs with us. When I'm completely ready I will send you a detailed report with pictures.
Best Regards/torsten

 

07-05-2012
Hi Troels,
Actually I have started with the Project some weeks ago … the cabs are almost finished, the OW1 from Oscar came, the 18W8531G00 has come, the crossover from Jantzen Audio is almost assembled … just the Accuton is a problem … this can take a few weeks to be delivered :-(
Here a picture of the cabs …

 

Each curved side is 7 Layers 3mm MDF.

- and here the crossovers so far …

to be continued … btw the facetting of the front panel, does it make a big difference to keep the front panel like it is in the ekta??? Cheers /torsten
(The front panel layout incl. drivers' placement is vital for optimal performance of the crossover, br Troels)