BRM4v2 4" Midrange Speaker 225 Watts 8-ohms (Pair)

BRM4v2 is a loudspeaker pair with a lightweight and rugged design, delivering accurate sound reproduction and high power handling capability. Utilizing high-quality components and advanced technology, BRM4v2 will provide you with quality sound that you can rely on.

Features:

• Nominal Diameter: 4" inch
• Nominal Impedance: 8 Ohm
• RMS Power: 100W
• Max Power: 225W
• Sensitivity (1w/1m): 85.6 dB +/- 3 dB
• Frequency Range: 174 - 16K Hz
• Voice Coil Diameter: 1" inch
• Voice Coil Length: 3/8" inch
• Air Gap Height: 1/4" inch 

Thiele & Small Parameters:

• Resonant Frequency, FS: 174 Hz
• D.C Voice Coil Resistance, Re: 5.6 Ohm
• Mechanical Quality Factor, QMS: 14.9
• Electrical Quality Factor, Qes: 1.49
• Total quality factor, Qts: 1.35
• Equivalent Air Volume to Cms, Vas: 0.65L
• Mechanical Compliance, Cms: 184uM/N
• Mechanical Resistance, Rms: 0.33 kg/s
• BL Factor, BL: 4.29 N/A
• Effective Surface Area, Sd: 5 m M
• Linear Excursion, Xmax: 3/32" inch

Materials:

• Basket: Steel
• Cone: Paper
• Surround: Trested Cloth
• Voice Coil Wire: CCAW
• Voice Coil bobbin: Kapton
• Magnet: Ferrite

Mounting Information:

• Overall Diameter: 4-15/32" inch
• Bolt Circle Diameter: 4-3/32" inch
• Depth: 2-7/16" inch
• Net Weight: 0.8Kg (~1.76 lb)