- Article number
- RS225-4
- Woofer Series
- Reference Series
- Woofer Type
- Midwoofer
- Nominal Diameter
- 8"
- Power Handling (RMS)
- 80 watts
- Power Handling (max)
- 160 watts
- Impedance
- 4 ohms
- Sensitivity
- 91 dB @ 2.83V/1m
- Frequency Response
- 35 - 2,300 Hz
- Voice Coil Diameter
- 38 mm
- DC Resistance (Re)
- 3.2 ohms
- Voice Coil Inductance (Le)
- 0.49 mH @ 1 kHz
- Resonant Frequency (Fs)
- 33 Hz
- Mechanical Q (Qms)
- 2.02
- Electromagnetic Q (Qes)
- 0.52
- Total Q (Qts)
- 0.41
- Diaphragm Mass Inc. Airload (Mms)
- 32.2g
- Mechanical Compliance of Suspension (Cms)
- 0.72 mm/N
- Surface Area of Cone (Sd)
- 213.8 cm²
- Volume of Displacement (Vd)
- 128.2 cm³
- BL Product (BL)
- 6.38 Tm
- Compliance Equivalent Volume (Vas)
- 46.4 liters
- Maximum Linear Excursion (Xmax)
- 6.0 mm
- Cone / Diaphragm Material
- Black Anodized Aluminum Cone
- Surround Material
- Rubber
- Voice Coil Wire Material
- Copper
- Voice Coil Former
- Aluminum
- Basket / Frame Material
- Cast Aluminum
- Magnet Material
- Ferrite
- Overall Outside Diameter
- 223 mm
- Overall Depth
- 92 mm
- Baffle Cutout Diameter
- 184 mm
- # Mounting Holes
- 6
- Sealed Volume
- 0.5 ft.³
- Sealed F3
- 70 Hz
- Vented Volume
- 1.62 ft.³
- Vented F3
- 36 Hz
