lasseo Posted December 3, 2017 Posted December 3, 2017 (edited) Item: Seas L26ROY speker / subwoofer driver, pairLocation: VIC 3212Price: $350,- ono for the pairItem Condition: used but great, good-as-new save some dustReason for selling: down-sizingPayment Method: Pickup - Cash, Paypal +3%, COD OnlyExtra Info: First owner, bought the pair new some three years ago. These are the low-impedance, low cone mass version of the L26 subwoofer/woofer driver that's suitable for both home theatre and music duties. I really like these as they have decent oomph but are not impossibly large. Don't be fooled by the subwoofer-wise diminutive 10-inch size, a pair of these will shake the slab in our house when Tom Hanks arrives on board of the Polar Express... extremely stiff aluminium cone and subber surround ensure cone break-up modes are both well controlled and north of 1 kHz, so also could be used as the low-frequency drive in a 3-way or 4-way set-up. They're not claustrophobic either, will happily reside in a sealed box of 40 litres internal volume, one of which can be offered as an option for the preferred local pick-up, in a beautiful (!) raw mdf finish; the model ship or the alarm clock are not being offered as part of this deal. I do have the original boxes so could ship these, however they are something like 12 kg a pop when packaged. Could arrange drop-off in Geelong area or western suburbs of Melbourne. A couple project builds where this driver is used: http://www.seas.no/images/stories/excel/coaxial/app_note/KingRO4Y_doc.pdf https://www.loudspeakerbuilding.com/magazine/loudspeakermagazine-2012/mai-2012/_elroy-the-many-sided-seas-sub_8636,en,900969,4006 Specifications provided by Seas, reproduced below for convenience: http://www.seas.no/index.php?option=com_content&view=article&id=400:d1001-04-l26roy&catid=94&Itemid=501 Nominal impedance: 4 ohms Recommended Frequency Range: 20 - 1000 Hz Short Term Power Handling: 500 W Long Term Power Handling: 250 W Sensitivity (2.83V, 1 m): 88 dB Voice Coil Diameter: 56 mm Voice Coil Height: 38 mm Air Gap Height: 10 mm Linear Coil Travel (p-p): 28 mm Max Col Travel (p-p): 56 mm Flux Density: 1.2 T Magnet weight: 2.34 kg Total weight: 10 kg Coil Former Material: Glass Fibre (that's "No Eddy Currents") Voice Coil Resistance: 3.1 ohms Voice Coil Inductance: 0.53 mH Force Factor: 12 N/A Free Air Resonance: 22 Hz Moving Mass: 107 g Air Load in ICE Baffle: 4.0 g Suspension Compliance: 0.5 mm/N Suspension Mechanical Resistance: 3.7 Ns/mm Effective Piston Area: 363 cm^2 VAS: 87 litres QMS 4.14 QES 0.33 QTS: 0.31 Frequency response plot (from Seas site) Pictures: Edited January 2, 2018 by lasseo Price drop
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