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Open baffle speaker driver array |
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Ash
Senior Member Joined: 18 Mar 2013 Location: Dorset Status: Offline Points: 4334 |
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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
Senior Member Joined: 18 Mar 2013 Location: Dorset Status: Offline Points: 4334 |
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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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Fatmangolf
Moderator Group Joined: 23 Dec 2009 Location: Middlesbrough Status: Offline Points: 8960 |
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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.
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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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Ash
Senior Member Joined: 18 Mar 2013 Location: Dorset Status: Offline Points: 4334 |
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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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CageyH
Senior Member Joined: 30 Apr 2012 Location: Toulouse, Franc Status: Offline Points: 1678 |
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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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Kevin
European loan coordinator, based near Toulouse, France. |
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Ash
Senior Member Joined: 18 Mar 2013 Location: Dorset Status: Offline Points: 4334 |
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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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Fatmangolf
Moderator Group Joined: 23 Dec 2009 Location: Middlesbrough Status: Offline Points: 8960 |
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That's good news about the digital low pass filters so only the central driver is outputting middle and treble.
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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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