A dual mid-bass driver slot ported tower, “microwoofTs” I think Dave called it?
Those little Scan Speaks did quite an amazing job for what they were, but would still need help to deliver serious SPL or extension.
He can correct me, but I think we used a quad of the same mid-bass drivers in the Facetts? Only have photos of those at the very earliest of assembly stages, so they’d be meaningless.
Those little Scan Speaks did quite an amazing job for what they were, but would still need help to deliver serious SPL or extension.
He can correct me, but I think we used a quad of the same mid-bass drivers in the Facetts? Only have photos of those at the very earliest of assembly stages, so they’d be meaningless.
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Thanks @chrisb
that reminds me about those: https://www.kraske.ch/katalog/en/floor-standing/31-credo-audio-switzerland-ev-reference-one.html
Do you bi-amp them, with a class D for the bottom speakers and a SET for the top speaker?
that reminds me about those: https://www.kraske.ch/katalog/en/floor-standing/31-credo-audio-switzerland-ev-reference-one.html
Do you bi-amp them, with a class D for the bottom speakers and a SET for the top speaker?
Most of those first half dozen or so “FAST/WAW” designs were biamped, often with whatever amps we had on hand that week, and with cobbled together PLLXOs, so I couldn’t remember every combination used, or even the XO pointd.
I did get a bit fancier with some the later builds, taking advantage of an Onkyo AVR (TX NR818) I boughT for its internal digital XO and biamping capability.
At one point we even fabricated a 4 channel classD amp with buffered PLLXO with several XO frequencies for experiments, which I think Dave may still have in his collection.
My favourite of the bunch though, was the large MTM A7.3/A12PW, which after much experimentation was settled with a passive XO designed by our buddy Aaron - installed externally as the enclosure had already been buttoned up, and it would have been a challenge to accommodate internally and might well have encroached on the MLTL volume for the woofers; at least that’s how I recall my thinking at the time. I was never as particular about documenting with photos as building and listening.
If I were to revisit it, I’d be inclined to consider a miniDSP implementation.
I did get a bit fancier with some the later builds, taking advantage of an Onkyo AVR (TX NR818) I boughT for its internal digital XO and biamping capability.
At one point we even fabricated a 4 channel classD amp with buffered PLLXO with several XO frequencies for experiments, which I think Dave may still have in his collection.
My favourite of the bunch though, was the large MTM A7.3/A12PW, which after much experimentation was settled with a passive XO designed by our buddy Aaron - installed externally as the enclosure had already been buttoned up, and it would have been a challenge to accommodate internally and might well have encroached on the MLTL volume for the woofers; at least that’s how I recall my thinking at the time. I was never as particular about documenting with photos as building and listening.
If I were to revisit it, I’d be inclined to consider a miniDSP implementation.
Yes.
It was quite an excercise to warp the ML-TL into an ML-Voigt with the driver pairs at just the right height. Another of Chris’ boxes that turned out to be too hard to build again.
dave
Doesn’t have push-push woofers. In Tysen V1 we did that (a single SDX7), in Tysen V2 we switched to push-push 5.25”, it worked much better.
The µFonkenSet of woofT was beamed, usually Class AB on the bottom, at the time likely a PP tube amp up top but cold have been many others as well.
dave
Tysen 2 was Silver Flute mid-bass drivers, still with the FF85WK, and still the same PLLXO in plastic box, I think? Those were fun times.
Have you got the Facetts operational again after Bernie’s workmanship to finish them off? I can’t remember if I ever heard them in that livery. And thinking about it, rather like the evolution of the FH3, once one’s head is wrapped around the cutting and fabrication sequence, they might not be too hard to build again, but still a lot of careful sequencing - or a king sized 3D printer
edit - having just completed the initial learning curve / familiarization with the miniDSP DC interface for fine tuning PEQ on dual subs in my HT rig, I could see a project like this as a perfect candidate for the Flex8.
Have you got the Facetts operational again after Bernie’s workmanship to finish them off? I can’t remember if I ever heard them in that livery. And thinking about it, rather like the evolution of the FH3, once one’s head is wrapped around the cutting and fabrication sequence, they might not be too hard to build again, but still a lot of careful sequencing - or a king sized 3D printer
edit - having just completed the initial learning curve / familiarization with the miniDSP DC interface for fine tuning PEQ on dual subs in my HT rig, I could see a project like this as a perfect candidate for the Flex8.
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Thinking about asymmetrical extension of the truncated pyramid shape, I think it would nice looking to have low-mids done like that with the push-push configuration like this. Can the Blanda-Gronsaker be fixed to the front corner (left on the first view here below) by truncating it?
Here below a frontal view:
And a side view (the other speaker on the other side) with the truncated pyramid shape and a suprabaffle-like around the speaker:
Here below a frontal view:
And a side view (the other speaker on the other side) with the truncated pyramid shape and a suprabaffle-like around the speaker: