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Subwoofer with 15 "Push-Pull configuration

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SP212
2 pezzi
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Descrizione

A technically and acoustically advanced narrow-band subwoofer, an extremely rare push-pull project created for very small acoustic volumes with  distortions so low as to be irrelevant

suitable for reproducing  low and ultra-low frequencies in a super-linear way and without distortions

usable both in hi-fi home and  in hi-fi car

(no spl, soloqualita)

can be inserted in any existing sound box of any volume as the system is designed to work in small volumes but is not affected by higher load volumes even by a lot .

the push-pull system has always existed, it has not had the success it deserves because of the double costs compared to a  normal subwoofer, finally with this project we can ac yield to a product without compromise at costs slightly higher than a single woofer of the same quality.Â

these are two loudspeakers of great quality and power, solidly coupled between them, mechanically, acoustically and electrically;

mechanically: a very strong  ring in aluminum alloy wraps the two flanges of the baskets, four passing bolts grip a second ring of the same metal that tightens the two flanges, creating an airtight chamber confined between the two membranes;

acoustically: the membranes work in the same room, with the same air, Â Â moving in the same direction in an absolutely symmetrical way;

electrically: the two coils  are internally connected together in parallel and in phase, so one pushes and the other pulls, this ago  yes that the two membranes connected to them do not find any resistance to the air as the latter is limited  by the chamber formed by the membranes themselves. the lack of air resistance means that distortions do not form.

the result of this  coupled is the halving of the vas (equivalent acoustic volume) for which this system works with a maximum yield in a volume that is exactly the  set of that necessary to make one woofer with the same characteristics work in an acceptable manner. / p>

* BASKETS IN PRINTED AND CHROMED STEEL;

* SUPERWARED MAGNETS AERATED IN FERRITE;

* CHROMED POLAR PLATES;

* REINFORCED POLYPROPYLENE MEMBRANES IN MICA;

< p style = "font-weight: 400;"> * SUSPENSIONS IN BUTYLIC RUBBER;

* SCREW CONNECTORS SUPER TENERATED;

* WEIGHT KG 14.00 (QUATTORDICI);

* NOMINAL DIAMETER ......... .................. 380mm 15in c

* DIAMETER COUPLING RING ... 408mm

* THICKNESS COUPLING RING. .... 54mm

* ASSEMBLY HOLE ......................... ....... 346mm

* TOTAL MOUNTING DEPTH ...... 360mm

* MOUNTING DEPTH OF 1/2 ......... 152mm

* ASSEMBLY OF 4 HOLE INTERFACE ..... .......... 370mm

* DISTANCE MOUNT HOLES .................. .260mm

* IMPEDANCE ............................. ........ 6 ohm

(indifferently combinable with 4 or 8 ohm systems)

* MAGNETS ............................... 155 x 55 + 155 x 55mm

< p style = "font-weight: 400;"> * EFFECTIVE MEMBRANE DIAMETER .......... 318 + 318 mm

* POTENZA " PROGRAM POWER "................. 1000 Watts

* POWER" POWER CAPACITY "................... 500 Watts

* MEDIUM EFFICIENCY ................................... 96 db

* FREQUENCY RESPONSE .................. 35/800 Hz varies according to the acoustic system in which it is inserted

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