EMINENCE EB12LTA Beta-12LT 12” 250 W 8 Ohm Μεγάφωνο

BETA-12LTA Series Standard American

Recommended for professional audio as a woofer in small sealed monitor, or as a PA woofer or monitor in a
vented enclosure.

• Nominal Basket Diameter 12“, 304.8 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 225 W / Music Program 450 W
• Resonance 45 Hz
• Usable Frequency Range 48 Hz - 8 kHz
• Sensitivity 97.7
• Magnet Weight 38 oz.
• Gap Height 0.312“, 7.92 mm
• Voice Coil Diameter 2“, 50.8 mm

• Resonant Frequency (fs) 45 Hz
• DC Resistance (Re) 7.37
• Coil Inductance (Le) 0.83 mH
• Mechanical Q (Qms) 6.44
• Electromagnetic Q (Qes) 0.55
• Total Q (Qts) 0.51
• Compliance Equivalent Volume (Vas) 136.3 liters / 4.8 cu. ft.
• Peak Diaphragm Displacement Volume (Vd) 170 cc
• Mechanical Compliance of Suspension (Cms) 0.34 mm/N
• BL Product (BL) 11.7 T-M
• Diaphragm Mass inc. Airload (Mms) 36 grams
• Efficiency Bandwidth (EBP) Product 82
• Maximum Linear Excursion (Xmax) 3.2 mm
• Surface Area of Cone (Sd) 532.4 cm²
• Maximum Mechanical Limit (Xlim) 8.0 mm

• Recommended Enclosure Volume
  Sealed 14-51 liters/0.5-1.8 cu.ft.
  Vented 56.6-116 liters/2-4.1 cu.ft.
• Overall Diameter 12.03“, 305.5 mm
• Baffle Hole Diameter 10.95“, 278.1 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.25“, 6.4 mm
• Mounting Holes B.C.D. 11.59“, 294.3 mm
• Depth 4.47“, 114 mm

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

Building on the platform of the Blue, the Gold is a higher-powered, Alnico-magnet speaker that recreates the unmistakable sonic signature of a ʽwell played-inʼ original. Over time, the high frequencies of a Blue soften and become less chalky as the cone becomes more flexible – a much sought after characteristic that the Gold exhibits straight out of the box. Also present in the Gold sound from the outset is an added warmth and complexity in the midrange which, coupled with the classic Alnico qualities of a laid-back attack, rounded low end and brilliant belllike highs, deliver huge rhythm voicings and saturated vocal lead tones.

The Gold is a wonderfully expressive and revealing loudspeaker, affording guitarists an unprecedented degree of dynamic control. It has already become a favourite for many working players worldwide whether picking and bending with Brad Paisley, or rocking hard with Danny Spitz of Anthrax.

Μεγάφωνο coaxial νεοδυμίου με 12" woofer, 8Ω,
350W Nominal, 700W continuous, 99dB
(1W/1m) και κόρνα 80W Nominal, 160W
continuous, 105dB (1W/1m), απόκριση
συχνότητας 45-18000Hz, διασπορά 80 μοίρες,
5Kg.

Long excursion 12" woofer with 800W power handling for
subwoofer application. A special 3" copper voice coil using
proprietary high temperature adhesives and an optimized
magnet assembly guarantees superb LF dynamic range with a
very low distortion. Due to the linear characteristics of the 12
PZ 32, exceptional results are obtained in horn loaded
subwoofer applications.

Specifications
Nominal Diameter 320 mm (12 in)
Nominal Impedance 8 Ω
Minumum Impedance 7.8 Ω
Power Handling
(70 –700 Hz)
Nominal1 400 W
Continuous Program2 800 W
Sensitivity (1W/1m)3 95 dB
Frequency Range 40-2500 Hz
Voice Coil Diameter 76 mm (3 in)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 22 mm (7/8 in)
Magnetic Gap Depth 10 mm (3/8 in)
Flux Density 1.1 T
Also available in 4 Ω, data upon request

Thiele & Small Parameters4
Fs 38 Hz
Re 6.2 Ω
Qes 0.2
Qms 5.9
Qts 0.19
Vas 102 dm3 (3.6 ft3)
Sd 522 cm2 (80.9 in2)
η0 2.7%
X max ± 5.5 mm
X var ± 5.5 mm
Mms 64 g
Bl 21.7 T·m
Le 2.7 mH

Mounting and Shipping Information
Overall Diameter 316 mm (12.4 in)
Bolt Circle Diameter 296 mm (11.6 in)
Baffle Cutout Diameter 282 mm (11.1 in)
Depth 134 mm (5.3 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 7.6 kg (16.7 lb)
Shipping Weight 8.5 kg (18.7 lb)
Shipping Box 380x380x170 mm
(15x15x6.7 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 Nominal Impedance. Average
SPL from 200 to 2500 Hz.
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning
test.

Building on the platform of the Blue, the Gold is a higher-powered, Alnico-magnet speaker that recreates the unmistakable sonic signature of a ʽwell played-inʼ original. Over time, the high frequencies of a Blue soften and become less chalky as the cone becomes more flexible – a much sought after characteristic that the Gold exhibits straight out of the box. Also present in the Gold sound from the outset is an added warmth and complexity in the midrange which, coupled with the classic Alnico qualities of a laid-back attack, rounded low end and brilliant belllike highs, deliver huge rhythm voicings and saturated vocal lead tones.

The Gold is a wonderfully expressive and revealing loudspeaker, affording guitarists an unprecedented degree of dynamic control. It has already become a favourite for many working players worldwide whether picking and bending with Brad Paisley, or rocking hard with Danny Spitz of Anthrax.

Μεγάφωνο coaxial 12“, 350W, 99dΒ, 11.2kg