EMINENCE EB12CXA Beta-12CX 12” 250 W 8 Ohm SPEAKER

BETA-12CX American Standard Series

Recommended for professional audio as a mid-bass in either vented, or sealed satellite or floor monitor
enclosures. Also works nicely in vented two-way enclosures used for small coverage areas.

• Nominal Basket Diameter 12“, 304.8 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 250 W / Music Program 500 W
• Resonance 43 Hz
• Usable Frequency Range 66 Hz - 20 kHz
• Sensitivity 96.7
• Magnet Weight 38 oz.
• Gap Height 0.312“, 7.92 mm
• Voice Coil Diameter 2“, 50.8 mm

• Resonant Frequency (fs) 43 Hz
• DC Resistance (Re) 5.57
• Coil Inductance (Le) 1.01 mH
• Mechanical Q (Qms) 6.69
• Electromagnetic Q (Qes) 0.51
• Total Q (Qts) 0.48
• Compliance Equivalent Volume (Vas) 161 liters / 5.7 cu. ft.
• Peak Diaphragm Displacement Volume (Vd) 186 cc
• Mechanical Compliance of Suspension (Cms) 0.40 mm/N
• BL Product (BL) 10.0 T-M
• Diaphragm Mass inc. Airload (Mms) 34 grams
• Efficiency Bandwidth Product (EBP) 84
• Maximum Linear Excursion (Xmax) 3.5 mm
• Surface Area of Cone (Sd) 532.4 cm²
• Maximum Mechanical Limit (Xlim) 10.4 mm

• Recommended Enclosure Volume
  Sealed 42.5-28 liters/1-1.5 cu.ft.
  Vented 37-71 liters/1.3-2.5 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
• Extended core
• Pressed steel basket
• Paper Cone
• Cloth cone edge
• Screened cloth dust cap

This classic guitar speaker actually started life as a radio speaker that was modified specifically for use in electric guitar amplifiers. In its original incarnation as the G12 T530 it appeared in several colour variations, but it was the Blue version, fitted as standard into Vox AC30 amps, that secured its place in guitar tone history.

The Blue found favour with notable guitarists like Brian May, due to its glorious dampened attack, warm lows, mellow upper-mids and brilliant belllike top-end. When coupled with a suitable amplifier it evokes rich definition and develops beautiful musical compression when pushed. According to tone enthusiasts worldwide, the Blue is the benchmark for guitar speaker perfection.

• Nominal Basket Diameter 12", 304.8 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 250 W / Music Program 500 W
• Resonance 47 Hz
• Usable Frequency Range 43 Hz - 3.8 kHz
• Sensitivity 98
• Magnet Weight 38 oz.
• Gap Height 0.312", 7.92 mm
• Voice Coil Diameter 2", 50.8 mm

• Resonant Frequency (fs) 47 Hz
• DC Resistance (Re) 5.0
• Coil Inductance (Le) 0.64 mH
• Mechanical Q (Qms) 6.00
• Electromagnetic Q (Qes) 0.50
• Total Q (Qts) 0.46
• Compliance Equivalent Volume (Vas) 120.1 liters / 4.2 cu. ft.
• Peak Diaphragm Displacement Volume (Vd) 237 cc
• Mechanical Compliance of Suspension (Cms) 0.29 mm/N
• BL Product (BL) 10.8 T-M
• Diaphragm Mass inc. Airload (Mms) 40 grams
• Efficiency Bandwidth Product (EBP) 94
• Maximum Linear Excursion (Xmax) 4.4 mm
• Surface Area of Cone (Sd) 538.9 cm²
• Maximum Mechanical Limit (Xlim) 11 mm

• Recommended Enclosure Volume Sealed 25.5-35.4 liters, 0.9-1.25 cu.ft. Vented 36.8-139 liters/1.3-4.9 cu.ft.
• Overall Diameter 12.03", 305.5 mm
• Baffle Hole Diameter 10.95", 278.1 mm
• Front Sealing Gasket standard fitted as standard
• Rear Sealing Gasket standard fitted as standard
• Mounting Holes Diameter 0.25", 6.4 mm
• Mounting Holes B.C.D. 11.59", 294.3 mm
• Depth 4.57", 116 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

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.