Product Description
Features an innovative sculpted, open cast aluminium basket design that minimizes internal acoustic reflections and supplements the neodymium motor’s dedicated heat sink. The cone is constructed of a coated natural wood fibre, with a butyl rubber surround designed by finite element analysis for linearity. Motor copper cap reduces inductance and extends high frequency performance.
Cast aluminium frame promotes motor cooling
Sculpted design improves airflow and reduces reflections
High-strength compact neodymium magnet system
Proprietary coated natural wood fiber cone with half-roll rubber surround
Long-throw 1-1/4″ voice coil on titanium former
Copper pole piece cap for extended HF response
8 ohm nominal impedance
Product Specifications
Nominal Diameter4″
Power Handling (RMS)90 Watts
Power Handling (max)180 Watts
Impedance8 ohms
Frequency Response60 to 8,000 Hz
Sensitivity86.2 dB 1W/1m
Voice Coil Diameter1.28″
Thiele-Small Parameters
Resonant Frequency (Fs)61 Hz
DC Resistance (Re)6.3 ohms
Voice Coil Inductance (Le)0.06 mH
Mechanical Q (Qms)4.98
Electromagnetic Q (Qes)0.37
Total Q (Qts)0.35
Compliance Equivalent Volume (Vas)0.21 ft.³
Mechanical Compliance of Suspension (Cms)1.43 mm/N
BL Product (BL)5.53 Tm
Diaphragm Mass Inc. Airload (Mms)4.7g
Maximum Linear Excursion (Xmax)3.1 mm
Surface Area of Cone (Sd)54.1 cm²
Materials of Construction
Cone MaterialWood Fiber
Surround MaterialRubber
Voice Coil FormerTitanium
Basket / Frame MaterialCast Aluminium
Magnet MaterialNeodymium
Mounting Information
Overall Outside Diameter4.84″
Baffle Cutout Diameter3.86″
Depth2.58″
# Mounting Holes5
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume0.05 ft.³
Sealed F3141 Hz
Vented Volume0.1 ft.³
Vented F384 Hz
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Product Description
Features an innovative sculpted, open cast aluminium basket design that minimizes internal acoustic reflections and supplements the neodymium motor’s dedicated heat sink. The cone is constructed of a coated natural wood fibre, with a butyl rubber surround designed by finite element analysis for linearity. Motor copper cap reduces inductance and extends high frequency performance.
Cast aluminium frame promotes motor cooling
Sculpted design improves airflow and reduces reflections
High-strength compact neodymium magnet system
Proprietary coated natural wood fiber cone with half-roll rubber surround
Long-throw 1-1/4″ voice coil on titanium former
Copper pole piece cap for extended HF response
8 ohm nominal impedance
Product Specifications
Nominal Diameter4″
Power Handling (RMS)90 Watts
Power Handling (max)180 Watts
Impedance8 ohms
Frequency Response60 to 8,000 Hz
Sensitivity86.2 dB 1W/1m
Voice Coil Diameter1.28″
Thiele-Small Parameters
Resonant Frequency (Fs)61 Hz
DC Resistance (Re)6.3 ohms
Voice Coil Inductance (Le)0.06 mH
Mechanical Q (Qms)4.98
Electromagnetic Q (Qes)0.37
Total Q (Qts)0.35
Compliance Equivalent Volume (Vas)0.21 ft.³
Mechanical Compliance of Suspension (Cms)1.43 mm/N
BL Product (BL)5.53 Tm
Diaphragm Mass Inc. Airload (Mms)4.7g
Maximum Linear Excursion (Xmax)3.1 mm
Surface Area of Cone (Sd)54.1 cm²
Materials of Construction
Cone MaterialWood Fiber
Surround MaterialRubber
Voice Coil FormerTitanium
Basket / Frame MaterialCast Aluminium
Magnet MaterialNeodymium
Mounting Information
Overall Outside Diameter4.84″
Baffle Cutout Diameter3.86″
Depth2.58″
# Mounting Holes5
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume0.05 ft.³
Sealed F3141 Hz
Vented Volume0.1 ft.³
Vented F384 Hz