- Article number
- RS180P-8
- Woofer Series
- Reference Series
- Woofer Type
- Midwoofer
- Nominal Diameter
- 7"
- Power Handling (RMS)
- 60 watts
- Power Handling (max)
- 90 watts
- Impedance (Z)
- 8 ohms
- Sensitivity (SPL at 1m / 2.83V)
- 89.8 dB
- Frequency Response
- 45 - 8,000 Hz
- Voice Coil Diameter
- 38.5 mm
- DC Resistance (Re)
- 6.3 ohms
- Voice Coil Inductance (Le)
- 0.84 mH @ 1 kHz
- Resonant Frequency (Fs)
- 45.8 Hz
- Mechanical Q (Qms)
- 1.49
- Electromagnetic Q (Qes)
- 0.44
- Total Q (Qts)
- 0.34
- Diaphragm Mass Inc. Airload (Mms)
- 12.4g
- Mechanical Compliance of Suspension (Cms)
- 0.98 mm/N
- Surface Area of Cone (Sd)
- 126.7 cm²
- Volume of Displacement (Vd)
- 76.0 cm³
- BL Product (BL)
- 7.16 Tm
- Compliance Equivalent Volume (Vas)
- 22 liters
- Maximum Linear Excursion (Xmax)
- 6 mm
- Cone / Diaphragm Material
- Paper / Kevlar Cone
- Surround Material
- Rubber
- Basket / Frame Material
- Cast Aluminum
- Magnet Material
- Ferrite
- Overall Outside Diameter
- 180.5 mm
- Overall Depth
- 81 mm
- Baffle Cutout Diameter
- 146 mm
- # Mounting Holes
- 6
- Sealed Volume
- 0.14 ft.³
- Sealed F3
- 120 Hz
- Vented Volume
- 0.28 ft.³
- Vented F3
- 74 Hz