Number One SPH-135TC 5" Midrange Speaker 2x60W Max. 8ohm

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Dual voice coil and polypropylene cone with good midrange attenuation, suitable for both miniature subwoofers and powerful 2-way speaker systems as bookshelf speakers or very slim column speakers.

Technical Specification

• Impedance (Z) 2 x 8Ω
• Resonant frequency (fs) 40Hz
• Max. frequency range f3-6,000Hz
• Rec. crossover freq. (fmax.) 4,000Hz
• Music power 2 x 60WMAX
• Power rating (P) 2 x 30WRMS
• SPL (1W/1m) 85dB
• Suspension compl. (Cms) 1.69mm/N
• Moving mass (Mms) 8.9g
• Mech. resistance (Rms) 0.7kg/s
• 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 7.5Ω/ 3.8Ω
• Voice coil induct. (Le) 2 x 0.6mH/ 0.6mH
• Voice coil diameter 20mm
• Voice coil former aluminium
• Voice coil winding height 10.5mm
• Air gap height 6mm
• Linear excursion (XMAX) ±2.25mm
• Eff. cone area (Sd) 95cm2
• Volume displacement (Vd) 21.4cm3
• Force factor (BxL) 4.2Tm
• Reference efficiency (No) 0.2%
• Magnet diameter 100mm
• Magnet weight 380g
• Mounting cutout Ø 123mm
• Mounting depth 70mm
• Dimensions 138x138mm
• Weight 1.2kg
• Rec. net cabinet volume:
• Closed 10 l
• Bass-reflex 20 l