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

Mεγάφωνο 8" ομοαξονικό με μαγνήτες Νεοδυμίου, 8Ω, απόκριση 70-18000 Hz, LF 500W / 250W(Continuous / Nominal) 97dB, HF 100W /50W (Continuous / Nominal) 104dB, βάρος 2,5Kg.

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

Manual/Εγχειρίδιο

Nominal Specifications

• Nominal Diameter 8“, 200 mm
• Overall Diameter 8.81/8.18“, 223.7/207.9 mm
• Bolt Circle Diameter 8.27“, 210 mm
• Baffle Cutout Diameter 7.20“, 183 mm
• Depth 3.88“, 98.5 mm
• Flange and Gasket Thickness 0.43“, 10.8 mm

• Minimum Impedance 6.4 Ohm
• Nominal Impedance 8 Ohm
• Nominal Power Handling*** 200 W
• Maximum Power Handling**** 400 W
• Sensitivity (1W/1m) 97 dB
• Frequency Range 80 - 6300 Hz
• Voice Coil Diameter 2“, 52 mm
• Winding Material Aluminium
• Former Material Glass Fiber
• Winding Depth 0.39“, 9.8 mm
• Magnetic Gap Depth 0.31“, 8 mm
• Flux Density 1.3 T

• Resonant Frequency (fs) 90 Hz
• DC Resistance (Re) 5.3 Ohm
• BL Product (BL) 13 N/A
• Diaphragm Mass inc. Airload (Mms) 23 grams
• Mechanical Compliance of Suspension (Cms) 0.14 mm/N
• Rms 1.53 Kg/s
• Electromagnetic Q (Qes) 0.41
• Mechanical Q (Qms) 8.5
• Total Q (Qts) 0.39
• Compliance Equivalent Volume (Vas) 0.29 ft³, 8.26 dm³
• Surface Area of Cone (Sd) 32.09“², 207 cm²
• Maximum Linear Excursion (Xmax)* 3.57 mm
• Xdamage** 10.65 mm
• Coil Inductance (Le) 0.41 mH
• Diaphragm mass (Mmd) 21.2 g
• Eta Zero 1.44 %

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

ALPHA- Serie 100W- 200W

Recommended for professional audio and bass guitar applications as a mid-range. Sealed basket makes this
woofer independent of enclosure design.

• Nominal Basket Diameter 8“, 203.2 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 125 W / Music Program 250 W
• Resonance 514 Hz
• Usable Frequency Range 400 Hz - 4.8 kHz
• Sensitivity 100.9
• Magnet Weight 20 oz.
• Gap Height 0.25“, 6.35 mm
• Voice Coil Diameter 1.5“, 38.1 mm

• Resonant Frequency (fs) 514 Hz
• DC Resistance (Re) 7.32
• Coil Inductance (Le) 0.34 mH
• Mechanical Q (Qms) 4.48
• Electromagnetic Q (Qes) 2.08
• Total Q (Qts) 1.42
• Compliance Equivalent Volume (Vas) 0.8 liters / 0.03 cu.ft.
• Peak Diaphragm Displacement Volume (Vd) 0cc
• Mechanical Compliance of Suspension (Cms) 0.01 mm/N
• BL Product (BL) 8.9 T-M
• Diaphragm Mass inc. Airload (Mms) 6.9 grams
• Efficiency Bandwidth Product(EBP) 247
• Maximum Linear Excursion (Xmax) 1.6 mm
• Surface Area of Cone (Sd) 205.9 cm²
• Maximum Mechanical Limit (Xlim) 3.0 mm

• Recommended Enclosure Volume
  Sealed N/A
  Vented N/A
• Overall Diameter 8.22“, 208.8 mm
• Baffle Hole Diameter 7.19“, 182.5 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.22“, 5.5 mm
• Mounting Holes B.C.D. 7.75“, 196.9 mm
• Depth 3.25“, 83 mm

• Copper voice coil
• Polyimide former
• Ferrite magnet
• Pressed steel basket with closed back
• Paper Cone
• Paper cone edge
• Solid composition paper dust cap