10W500 LF Ferrite Transducer KeyFeatures 98 dB SPL 1W / 1m average sensitivity 51 mm (2 in) Interleaved Sandwich copper Voice coil (ISV) 280 W AES power handling Improved heat dissipation via unique basket design Ideal for compact two way and multiway systems Description The 10W500 is a low frequency driver designed to satisfy the need for a 10" ferrite loudspeaker combining excellent linearity with good sensitivity and power handling characteristics. The transducer is the evolution of the 10W400, and is primarily recommended for compact bass reflex systems in enclosures as small as 25 lt. The paper curvilinear cone is carried by a dampened linen, triple roll front suspension to control vibration modes that ensures good travel control and linear excursion. The 50 mm diameter copper wire voice coil employs the Interleaved Sandwich Voice coil (ISV) technology, where a high strength fiberglas former carries windings on both the outer and inner surfaces to achieve a mass balanced coil. This results in an extremely linear motor assembly which, in conjunction with the highly advanced design of the magnetic structure, provides a high force factor or BL. Another feature of 10W500 is the fine air channels between the chassis back plate and the top plate of the magnet, which draw heated air out from the voice coil gap and dissipate the energy through the chassis casting. The top and back plates of the magnet assembly have been designed to optimise flux density and BL factor in the air gap using our in-house FEA CAD facility. Models Model Code Info 0221084310 0221084310 8 Ohm General Specifications Nominal Diameter Rated Impedance AES Power Program Power Peak Power Sensitivity Frequency Range Power Compression @-10dB Power Compression @-3dB Power Compression @Full Power Max Recomm. Frequency Recomm. Enclosure Volume Minimum Impedance Max Peak To Peak Excursion Voice Coil Diameter Voice Coil winding material Suspension Cone FREQUENCY RESPONSE CURVE 260 mm (10 in) 8 Ohm 280 W 400 W 800 W 98 dB 55 - 4500 Hz 0,7 dB 1,3 dB 2,8 dB 2000 Hz 20 - 50 lt. (0,71 - 1,77 cuft) 7 Ohm at 25°C 24 mm (0,94 in) 51 mm (2 in) copper Triple roll polycotton Curvilinear ribbed, treated paper FREQUENCY RESPONSE CURVE OF 10W500 MADE ON 30 LIT. ENCLOSURE TUNED 55HZ IN FREE FIELD (4PI) ENVIRONMENT. ENCLOSURE CLOSES THE REAR OF THE DRIVER. THE THIN LINE REPRESENTS 45 DEG. OFF AXIS FREQUENCY RESPONSE FREE AIR IMPEDANCE MAGNITUDE CURVE Thiele Small Parameters Fs Re Sd Qms Qes Qts Vas Mms BL Linear Mathematical Xmax Le (1kHz) Ref. Efficiency 1W@1m (half space) 53 Hz 6,0 Ohm 0,035 sq.mt. (54,25 sq.in.) 4,22 0,31 0,29 45,2 lt. (1,60 cuft) 33 gr. (0,07 lb) 14,6 Tm ± 5,5 mm (± 0,22 in) 0,72 mH 96 dB Mounting information Overall diameter N. of mounting holes and bolt Mounting holes diameter Bolt circle diameter Front mount baffle cutout ø Rear mount baffle cutout ø Total depth Flange and gasket thickness Net weight Shipping weight Packaging Dimensions 260 mm (10,24 in) 8 7,15 mm (0,28 in) 244,5 mm (9,63 in) 232 mm (9,13 in) 232 mm (9,13 in) 121,5 mm (4,78 in) 14,5 mm (0,57 in) 4,7 kg (10,38 lb) 5,10 kg (11,26 lb) 275 x 275 x 164 mm (10,83 x 10,83 x 6,46 in) Notes 1) AES power is determined according to AES2-1984 (r2003) standard. 2) Program power rating is measured in 30 lit enclosure tuned 55Hz using a 70 - 2000Hz band limited pink noise test signal with 50% duty cycle, applied for 2 hours. 3) The peak power rating represents the maximum permitted instantaneous peak power level over a maximum period of 10ms which will be withstood by the loudspeaker without damage. 4) Sensitivity represents the averaged value of acoustic output as measured on the forward central axis of cone, at distance 1m from the baffle panel, when connected to 2,83V sine wave test signal swept between 500Hz and 2500Hz with the test specimen mounted in the same enclosure as given for (1) above. 5) Frequency range is given as the band of frequencies delineated by the lower and upper limits where the output level drops by 10 dB below the rated sensitivity in half space environment. 6) Power compression represents the loss of sensitivity for the specified power, measured from 50-500 Hz, after a 5 min pink noise preconditioning test at the specified power. 7) Linear Math. Xmax is calculated as (Hvc-Hg)/2 + Hg/4 where Hvc is the coil depth and Hg is the gap depth.