BMS BMS8N519L 8 N 519 L – 8″ Neodymium Bass Midrange Speaker 250 W 8 Ohm

• 94 dB sensitivity 1 W / 1 m
• 250 W Power handling
• 2" voice coil
• Double treated cone for water protection
• Neodymium magnet system
• Tripie aluminum demodulating rings for ultra low distortion
• Optimal for compact 2-way systems
• Light weight carbon fibre diaphragm

Nominal Specifications

    * Nominal Diameter 8“, 200 mm
    * Overall Diameter 8.81/8.18“, 223.8/203.9 mm
    * Bolt Circle Diameter 8.27“, 210 mm
    * Baffle Cutout Diameter 7.24“, 184 mm
    * Depth 4.59“, 116.7 mm
    * Flange and Gasket Thickness 0.42“, 10.7 mm


Electrical Specifications

    * Minimum Impedance 6.4 Ohm
    * Nominal Impedance 8 Ohm
    * Nominal Power Handling*** 200 W
    * Maximum Power Handling**** 400 W
    * Sensitivity (1W/1m) 95 dB
    * Frequency Range 60 - 5000 Hz
    * Voice Coil Diameter 2“, 52 mm
    * Winding Material Aluminium
    * Former Material Glass Fiber
    * Winding Depth 0.76“, 19.3 mm
    * Magnetic Gap Depth 0.35“, 9 mm
    * Flux Density 1.15 T


THIELE & SMALL Parameters

    * Resonant Frequency (fs) 58 Hz
    * DC Resistance (Re) 5.1 Ohm
    * BL Product (BL) 11.3 N/A
    * Diaphragm Mass inc. Airload (Mms) 24 grams
    * Mechanical Compliance of Suspension (Cms) 0.31 mm/N
    * Rms 0.93 Kg/s
    * Electromagnetic Q (Qes) 0.34
    * Mechanical Q (Qms) 9.4
    * Total Q (Qts) 0.35
    * Compliance Equivalent Volume (Vas) 0.62 ft³, 17.6 dm³
    * Surface Area of Cone (Sd) 30.8“², 199 cm²
    * Maximum Linear Excursion (Xmax)* 8.15 mm
    * Xdamage** 13.5 mm
    * Coil Inductance (Le) 0.55 mH
    * Diaphragm mass (Mmd) 22 g
    * Eta Zero 1.02 %

Notes

    * *Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
    * **Maximum excursion before permanent damage
    * ***2 Hours Test According to AES 2-1984 Rev. 2003
    * ****Maximum power is defined as 3dB greater than nominal power

Nom. Diameter     200 mm (8 in)
Overall Diameter     223.75/207.9 mm (8.81/8.19 in)
Bolt Circle Diameter     210 mm (8.27 in)
Baffle Cutout Diameter     183 mm (7.20 in)
Depth     110.7 mm (4.36 in)
Flange and Gasket Thickness     10.7 mm (0.42 in)
Net Weight     2.7 Kg (5.95 lb)
Shipping Box
(Single Carton Box)     246x246x150 mm (9.69x9.69x5.91 in)
Shipping Weight     3.4 Kg (7.50 lb)


Nom. Impedance     8 Ohm     8 Ohm
Minimum Impedance     6.6 Ohm     6.9 Ohm
Nom. Power Handling ***     250 W     30 W
Max Power Handling ****     500 W     60 W
Sensitivity (1W/1m) *****     95 dB     107 dB
Frequency Range     75÷4000 Hz     1500÷20000 Hz
Voice Coil Diameter     65 mm (2.50 in)     37 mm (1.46 in)
Winding Material     Al     Al
Former Material     Glass Fiber     Kapton
Winding Depth     12.5 mm (0.49 in)     2.1 mm (0.08 in)
Magnetic Gap Depth     8 mm (0.31 in)     2.6 mm (0.10 in)
Flux Density     1.2 T     1.85 T
Min. Cross. Freq. ******     -     1700 Hz
Dispersion Angle     -     90°
Diaphragm Material     -     Ketone Polymer
Diaphragm Shape     -     Annular


Fs     76 Hz
Re [LF]     5.5 Ohm
Re [HF]     5.5 Ohm
Qes     0.31
Qms     10.5
Qts     0.3
Vas     12.6 dm^3 (0.44 ft^3)
Sd     211 cm^2 (32.71 in^2)
Xmax *     4.92 mm
Xdamage **     10.2 mm
Mms     22 g
Bl     13.7 N/A
Le     0.51 mH
Mmd     20.3 g
Cms     0.2 mm/N
Rms     1 Kg/s
Eta Zero     1.74 %
EBP     245 Hz

Nominal Specifications

    * Nominal Diameter 8“, 200 mm
    * Overall Diameter 8.81/8.18“, 223.8/207.9 mm
    * Bolt Circle Diameter 8.27“, 210 mm
    * Baffle Cutout Diameter 7.24“, 184 mm
    * Depth 4.59“, 116.7 mm
    * Flange and Gasket Thickness 0.42“, 10.7 mm


Electrical Specifications

    * Minimum Impedance 6.5 Ohm
    * Nominal Impedance 8 Ohm
    * Nominal Power Handling*** 150 W
    * Maximum Power Handling**** 300 W
    * Sensitivity (1W/1m) 94 dB
    * Frequency Range 80 - 6300 Hz
    * Voice Coil Diameter 2“, 52 mm
    * Winding Material Aluminium
    * Former Material Glass Fiber
    * Winding Depth 0.53“, 13.5 mm
    * Magnetic Gap Depth 0.31“, 8 mm
    * Flux Density 1 T


THIELE & SMALL Parameters

    * Resonant Frequency (fs) 76 Hz
    * DC Resistance (Re) 5.8 Ohm
    * BL Product (BL) 9.86 N/A
    * Diaphragm Mass inc. Airload (Mms) 20.9 grams
    * Mechanical Compliance of Suspension (Cms) 0.2 mm/N
    * Rms 2.11 Kg/s
    * Electromagnetic Q (Qes) 0.59
    * Mechanical Q (Qms) 4.72
    * Total Q (Qts) 0.53
    * Compliance Equivalent Volume (Vas) 0.42 ft³, 11.9 dm³
    * Surface Area of Cone (Sd) 31“², 200 cm²
    * Maximum Linear Excursion (Xmax)* 5.42 mm
    * Xdamage** 12 mm
    * Coil Inductance (Le) 0.55 mH
    * Diaphragm mass (Mmd) 19.4 g
    * Eta Zero 0.85 %

Notes

    * *Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
    * **Maximum excursion before permanent damage
    * ***2 Hours Test According to AES 2-1984 Rev. 2003
    * ****Maximum power is defined as 3dB greater than nominal power

• 96 dB Sensitivity 1 W / 1 m
• 200 W Power Handling
• 2" Aluminium Sandwich Voice Coil for low Power Compression
• Double treated Cone for Water Protection
• Neodymium Magnet System
• Triple Aluminum demodulating Rings for ultra low Distortion
• Optimal for compact 2- or 3-way Systems

• 2'' voice coil Kapton former
• Ventilated magnet and voice coil to reduce power compression
• 94.6 dB sensitivity

Manual/Εγχειρίδιο