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Open baffle speaker driver array

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Ash View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2022 at 8:59pm
Thank you for the information. Sadly, there isn't a desktop version. Very posh but I don't have the space for floorstanders. At 4K, I would buy a second Slee system and use a digital XO with a second driver pair. I will have to prototype something with card/cardboard or plastic.
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Ash View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2022 at 11:10am
What are the limitations of driver arrays?

Say I want to increase my one driver per channel to four identical drivers per channel in a packed square arrangement on each side with a series-parallel wiring to keep the same driving impedance, what else electrically will change? I don't understand all the damping factor and inductance stuff. Discussion with Heinz Renner suggested there will be a loss of impulse response too...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2022 at 7:02pm
Multiple signal paths would be one issue acoustically. Fine when the cones are within 1/4 wavelength e.g. four 100mm drivers in a square or a line 450-500mm high, compared to 1 kHz wavelength less than that...

And unless you are at the focal point with same length paths there will be some phase cancellations. You are using full range drivers so they will be putting short wavelength sounds but be a long way apart relative to wavelengths. You could align them on a baffle that curved or stepped towards you at the top and bottom I suppose.
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2022 at 7:33pm
I could use five 11MS drivers per side, each in a square arrangement with one driver in the centre of the square, all as close together on the baffle as their baskets allow.. The centre driver is operated full range with mechanical roll off. The four surrounding drivers would be for deep bass using a digital crossover. This would be a totally open baffle design with maybe just thin cloth covering to keep dust out. This would be a double-Majestic quadruple Proprius system. I would sell MySphere 3.1 to pay for it all. I'm not interested in headphones, nearfield speakers all the way. The depth is vastly enhanced.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2022 at 7:47pm
You could, but why would you want to?

What will 5 drivers give you, that one driver won’t for near field listening?
You would probably be better of with a different drive unit, in a different open baffle?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2022 at 8:22pm
Completely mono-suspension so as mechanically free as possible, large radiating area for effortless dynamics, symmetrical layout for a symmetrical soundfield. Better than a huge slow subwoofer underneath a fast full-range.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2022 at 8:34pm
That's good news  about the digital low pass filters so only the central driver is outputting middle and treble.
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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