EMINENCE Beta 10 A 10″ Speaker 250 W 8 Ohms

BETA-10A American Standard Series

Recommended for professional audio, bass guitar, mid-bass or floor monitor applications in sealed enclosures.
Also works well as a mid-bass or woofer in vented enclosures.

• Nominal Basket Diameter 10", 254 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 250 W / Music Program 500 W
• Resonance 53 Hz
• Usable Frequency Range 51 Hz - 3.8 kHz
• Sensitivity 97
• Magnet Weight 34 oz.
• Gap Height 0.312", 7.92 mm
• Voice Coil Diameter 2", 50.8 mm

• Resonant Frequency (fs) 53 Hz
• DC Resistance (Re) 5.75
• Coil Inductance (Le) 0.67 mH
• Mechanical Q (Qms) 8.14
• Electromagnetic Q (Qes) 0.52
• Total Q (Qts) 0.49
• Compliance Equivalent Volume (Vas) 60.1 liters / 2.1 cu. ft.
• Peak Diaphragm Displacement Volume (Vd) 102 cc
• Mechanical Compliance of Suspension (Cms) 0.36 mm/N
• BL Product (BL) 9.6 T-M
• Diaphragm Mass inc. Airload (Mms) 25 grams
• Efficiency Bandwidth Product (EBP) 103
• Maximum Linear Excursion (Xmax) 3.0 mm
• Surface Area of Cone (Sd) 344.9 cm²
• Maximum Mechanical Limit (Xlim) 8.6 mm

• Recommended Enclosure Volume
  Sealed 8.5-14.2 liters/0.3-0.5 cu.ft.
  Vented 19.8-70.8 liters/0.7-2.5 cu.ft.
• Overall Diameter 10.11", 256.8 mm
• Baffle Hole Diameter 9.13", 231.8 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.23", 5.7 mm
• Mounting Holes B.C.D. 9.6", 243.8 mm
• Depth 3.98", 101 mm

• Aluminum voice coil
• Polyimide former
• Ferrite magnet
• Vented core
• Pressed steel basket
• Paper Cone
• Cloth cone edge
• Solid composition paper dust cap

Recommended for professional audio mid-bass applications in a small sealed cabinet.

• Nominal Basket Diameter 10“, 254 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 150 W / Music Program 300 W
• Resonance 50 Hz
• Usable Frequency Range 57 Hz - 4.5 kHz
• Sensitivity 95.6
• Magnet Weight 20 oz.
• Gap Height 0.25“, 6.35 mm
• Voice Coil Diameter 1.5“, 38.1 mm

• Resonant Frequency (fs) 50 Hz
• DC Resistance (Re) 5.31
• Coil Inductance (Le) 0.66 mH
• Mechanical Q (Qms) 5.21
• Electromagnetic Q (Qes) 0.66
• Total Q (Qts) 0.59
• Compliance Equivalent Volume (Vas) 82.2 liters / 2.9 cu. ft.
• Peak Diaphragm Displacement Volume (Vd) 114 cc
• Mechanical Compliance of Suspension (Cms) 0.46 mm/N
• BL Product (BL) 7.5 T-M
• Diaphragm Mass inc. Airload (Mms) 22 grams
• Efficiency Bandwidth Product (EBP) 76
• Maximum Linear Excursion (Xmax) 3.2 mm
• Surface Area of Cone (Sd) 355.4 cm2
• Maximum Mechanical Limit (Xlim) 9.1 mm

• Recommended Enclosure Volume
  Sealed 8.5-11.3 liters/0.3-0.4 cu.ft.
  Vented 28.3-53.8 liters/1.0-1.9 cu.ft.
• Overall Diameter 10.11“, 256.8 mm
• Baffle Hole Diameter 9.13“, 231.8 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.23“, 5.7 mm
• Mounting Holes B.C.D. 9.6“, 243.8 mm
• Depth 3.90“, 99 mm

• Copper voice coil
• Polyimide former
• Ferrite magnet
• Vented and extended core
• Pressed steel basket
• Paper Cone
• Cloth cone edge
• Solid composition paper dust cap

DYNACORD MFT2008  (330 983) 10'' Transducer gives excellent horizontal coverage and extremely low distortion.

• 3'' sandwich voice coil fiberglass former and aluminium winding
• Progressive wave Konex spider
• Cloth surround with DAR technology
• Cone waterproof treatment
• Ventilated voice coil to reduce power compression
• BMF ferrite magnet
• 95.8 dB sensitivity

Mεγάφωνο 10" mid-bass 200W 100dΒ

High efficiency mid-bass, 2.5” aluminium voice coil,
with very flat response up to 4 kHz.

Specifications
Nominal Diameter 250 mm (10 in.)
Nominal Impedance 8 Ω
Minumum Impedance 6.9 Ω
Power Handling
(60 –600 Hz)
Nominal1 250 W
Continuous Program2 500 W
Sensitivity (1W/1m)3 99 dB
Frequency Range 60-4000 Hz
Voice Coil Diameter 65 mm (2.5 in.)
Winding Material Aluminium
Former Material Glass Fibre
Winding Depth 12 mm (1/2 in.)
Magnetic Gap Depth 8 mm (5/16 in.)
Flux Density 1.25 T
Also available in 16 Ω, data upon request

Thiele & Small Parameters4
Fs 60 Hz
Re 5.7 Ω
Qes 0.19
Qms 6.3
Qts 0.18
Vas 37 dm.3 (1.3 cu. ft.)
Sd 320 cm.2 (49.1 sq. in.)
η0 4.1 %
X max ± 2.4 mm.
Mms 27 gr.
Bl 17.7 Tm
Le 1.3 mH

Mounting and Shipping Informations
Overall Diameter 260 mm. (10.2 in.)
Bolt Circle Diameter 244 mm. (9.6 in.)
Baffle Cutout Diameter 228 mm. (8.8 in.)
Depth 110 mm. (4.3 in.)
Flange and Gasket Thickness 17 mm. (2/3 in.)
Net Weight 7.1 Kg. (15.6 lb.)
Shipping Weight 7.8 Kg. (17.2 lb.)
Shipping Box 320x320x160 mm
(12x12x6.3 in.)

1 2 hours test made with continuous pink noise signal (6 dB crest factor) within the
specified range . Power calculated on rated minimum impedance. Loudspeaker in
free air.
2 Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
3 Applied RMS Voltage is set to 2.83V for 8 ohms and 4V for 16 ohms Nominal
Impedance. Average SPL from 200 to 4000 Hz.
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning
test.