Monarch (Monacor) SPH-135 TC (twin coil) 5 1/4” woofer. Often used as a drop-in replacement for Kef B110 drivers and is supplied in the Stirling Broadcast LS3/5a clone. Dual 8 ohm voice coils - you can use just 1 set for B110 compatibility or you can run in parallel (4 ohms) or series (16 ohm) or use as a small subwoofer with independent connections. Price is for 1, includes US shipping. I have 2 available. Merkliste Monacor MONACOR Components Speaker Technology Hi-fi Midrange Speakers SPH-135TC G101430A P1450 P230 P680 SPH-135TC Order No.: 0101430 Hi-fi bass-midrange speaker, 2 x 30 W, 2 x 8 ? Dual voice coil Polypropylene cone with good midrange attenuation Suitable for both miniature subwoofers and powerful 2-way speaker systems, as bookshelf speakers or extra slimline column speakers + more Buy at B2B shop Add to favorites PRODUCTINFOS SUPPLIES TECHNICAL SPECIFICATIONS Technical specifications SPH-135TC SPH-135TC Impedance (Z)2 x 8 ? Frequency rangef3-6,000 Hz Resonant frequency (fs)40 Hz Power rating (RMS)2 x 30 W Peak music power output (MAX)2 x 60 W SPL85 dB/W/m Suspension compl. (Cms)1.69 mm/N Moving mass (Mms)8.9 g Mech. Q factor (Qms)3.44 Electr. Q factor (Qes)0.48 Total Q factor (Qts)0.42 Equivalent volume (Vas)16 l DC resistance (Re)2 x 7.5 ?/ 3.8 ? Force factor (BxL)4.20 Tm Voice coil induct. (Le)2 x 0.6 mH/ 0.6 mH Voice coil diameterØ 20 mm Voice coil formeraluminium Linear excursion (XMAX)± 2.25 mm Eff. cone area (Sd)95 cm2 Magnet weight380 g Magnet diameterØ 100 mm Mounting cutoutØ 122 mm Mounting depth64 mm DimensionsØ 138 mm x 70 mm Outside diameterØ 138 mm WidthØ 138 mm Depth70 mm Colourblack Admiss. ambient temp.0-40 °C Weight1.08 kg Packing unit1 Type of speaker5.5 Packing dimensions (W x H x L)0.135 x 0.085 x 0.135 m Gross weight1.155 kg Net weight1.08 kg