EMINENCE EA12A ALPHA-12 12” 150 W 8 Ohm SPEAKER

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ALPHA-12A Series Standard American Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure. SPECIFICATION Nominal Basket Diameter 12“, 304.8 mm Nominal Impedance 8 ohms Power Rating Watts 150 W / Music Program 450 W Resonance 49 Hz Usable Frequency Range 51 Hz – 4.3 kHz Sensitivity 95.6 Magnet Weight 20 […]

 

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ALPHA-12A Series Standard American

Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure.

SPECIFICATION

  • Nominal Basket Diameter 12“, 304.8 mm
  • Nominal Impedance 8 ohms
  • Power Rating Watts 150 W / Music Program 450 W
  • Resonance 49 Hz
  • Usable Frequency Range 51 Hz – 4.3 kHz
  • Sensitivity 95.6
  • Magnet Weight 20 oz.
  • Gap Height 0.25“, 6.35 mm
  • Voice Coil Diameter 1.5“, 38.1 mm

THIELE & Small Parameters

  • Resonant Frequency (fs) 49 Hz
  • DC Resistance (Re) 6.3
  • Coil Inductance (Le) 0.79 mH
  • Mechanical Q (Qms) 6.53
  • Electromagnetic Q (Qes) 0.88
  • Total Q (Qts) 0.77
  • Compliance Equivalent Volume (Vas) 121.5 liters / 4.3 cu. ft.
  • Peak Diaphragm Displacement Volume (Vd) 125 cc
  • Mechanical Compliance of Suspension (Cms) 0.32 mm/N
  • BL Product (BL) 8.5 T-M
  • Diaphragm Mass inc. Airload (Mms) 33 grams
  • Efficiency Bandwidth Product (EBP) 56
  • Maximum Linear Excursion (Xmax) 2.4 mm
  • Surface Area of Cone (Sd) 519.5 cm²
  • Maximum Mechanical Limit (Xlim) 6.6 mm

MOUNTING Information

  • Recommended Enclosure Volume
    Sealed 17-22.7 liters / 0.6-0.8 cu. ft.
    Vented 56.6-113.3 liters / 2-4 cu. ft.
  • Overall Diameter 12.26“, 311.4 mm
  • Baffle Hole Diameter 11“, 279.5 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. 11.71“, 297.5 mm
  • Depth 4.73“, 120 mm

MATERIALS of Construction

  • Copper voice coil
  • Polyimide former
  • Ferrite magnet
  • Vented and extended core
  • Pressed steel basket
  • Paper Cone
  • Cloth cone edge
  • Solid composition felt dust cap
Weight 2.40 kg

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Quick Comparison

EMINENCE EA12A ALPHA-12 12'' 150 W 8 Ohm SPEAKER removeB & C Speakers 12-NW100 1000W Subwoofer Neodymium 12 inch, 96dB removeCELESTION T5471 WOOFER 12'' ALNICO GOLD 8OHM FOR GUITAR AMP 50W 100dB removeB & C Speakers 12-CXT SPEAKER coaxial 12", 200W, 98dB removeB & C Speakers 12-CX32 Speaker coaxial 12", 350W, 99dB removeB & C Speakers 12-TBX100 SPEAKER subwoofer 12 inch 1000W, 95dB remove
NameEMINENCE EA12A ALPHA-12 12'' 150 W 8 Ohm SPEAKER removeB & C Speakers 12-NW100 1000W Subwoofer Neodymium 12 inch, 96dB removeCELESTION T5471 WOOFER 12'' ALNICO GOLD 8OHM FOR GUITAR AMP 50W 100dB removeB & C Speakers 12-CXT SPEAKER coaxial 12", 200W, 98dB removeB & C Speakers 12-CX32 Speaker coaxial 12", 350W, 99dB removeB & C Speakers 12-TBX100 SPEAKER subwoofer 12 inch 1000W, 95dB remove
Image12-nw100 bc speakers subwoofer woofer neodymium
SKUEA12A12-NW100T547112-CXT12-CX3212-TBX100
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Price 142.94 incl. GR VAT 412.99 incl. GR VAT 312.48 incl. GR VAT 171.37 incl. GR VAT 337.73 incl. GR VAT 317.00 incl. GR VAT
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Description
ContentALPHA-12A Series Standard American Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure. SPECIFICATION
  • Nominal Basket Diameter 12“, 304.8 mm
  • Nominal Impedance 8 ohms
  • Power Rating Watts 150 W / Music Program 450 W
  • Resonance 49 Hz
  • Usable Frequency Range 51 Hz - 4.3 kHz
  • Sensitivity 95.6
  • Magnet Weight 20 oz.
  • Gap Height 0.25“, 6.35 mm
  • Voice Coil Diameter 1.5“, 38.1 mm
THIELE & Small Parameters
  • Resonant Frequency (fs) 49 Hz
  • DC Resistance (Re) 6.3
  • Coil Inductance (Le) 0.79 mH
  • Mechanical Q (Qms) 6.53
  • Electromagnetic Q (Qes) 0.88
  • Total Q (Qts) 0.77
  • Compliance Equivalent Volume (Vas) 121.5 liters / 4.3 cu. ft.
  • Peak Diaphragm Displacement Volume (Vd) 125 cc
  • Mechanical Compliance of Suspension (Cms) 0.32 mm/N
  • BL Product (BL) 8.5 T-M
  • Diaphragm Mass inc. Airload (Mms) 33 grams
  • Efficiency Bandwidth Product (EBP) 56
  • Maximum Linear Excursion (Xmax) 2.4 mm
  • Surface Area of Cone (Sd) 519.5 cm²
  • Maximum Mechanical Limit (Xlim) 6.6 mm
MOUNTING Information
  • Recommended Enclosure Volume Sealed 17-22.7 liters / 0.6-0.8 cu. ft. Vented 56.6-113.3 liters / 2-4 cu. ft.
  • Overall Diameter 12.26“, 311.4 mm
  • Baffle Hole Diameter 11“, 279.5 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. 11.71“, 297.5 mm
  • Depth 4.73“, 120 mm
MATERIALS of Construction
  • Copper voice coil
  • Polyimide former
  • Ferrite magnet
  • Vented and extended core
  • Pressed steel basket
  • Paper Cone
  • Cloth cone edge
  • Solid composition felt dust cap
The B&C 12NW100 speaker is designed to produce bass, it is typically a 12 inch usable as a bass power speaker in a subwoofer for a compact system often transported. The 12NW100 will delight you with bass-reflex or band-pass load, its significant admissible electrical power makes it a real machine for producing bass, however, special care must be taken with the amplification dedicated to it.   2000 W continuous program power capacity 100 mm (4 in) copper voice coil 45 - 1500 Hz response 96 dB sensitivity FEA optimized Neodymium magnet assembly Double silicone spider with optimized compliance Ventilated voice coil gap for reduced power compression

General

Product type Cone driver
Brand B&C Speakers
Reference 12NW100
Product code ALT12NW1008

Informations

Nominal impedance 8 ohm
Dimensional category 12.5 inch
Frequency coverage type Sub, Low, Midbass
Manufacturer sensitivity 96 dB
Calculated sensitivity 93.76 dB
Nominal power handling 1000 W
Bandwidth 45÷1500 Hz

Fundamental parameters

Sd 531 cm²
Mms 119 gr
Le 1.9 mH
Re 5.1 ohm
BL 28 T.m

Small signal parameters

Fs 42 Hz
Qes 0.21
Qms 3.6
Qts 0.2
Vas 44 L

Datas

Xmax ±9 mm
Calculated Xmax ±10.5 mm
EBP 200 Hz
Zmin 6.2 ohm
Fs / Qts 210 Hz
Vas * Qts² 1.76 L
Efficiency 1.7 %
Calculated efficiency 1.5 %
Weight ~8.2 kg
Recommended load volume 50 L
Fréquence d'accord liée à la charge 50 Hz

Dimensions

Voice coil diameter 4 inch
Winding depth 25 mm
Gap height 12 mm
Outside diameter 319 mm
Baffle cutout diameter 281 mm
Front thickness 13 mm
Depth after front 124 mm

Shape & Materials

Front chape Cylindrical
Magnet type Neodymium
Basket masterial Aluminium
Winding material Copper
Voice coil former Glass fiber

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.

General specifications
Nominal diameter 12“, 305mm
Power Rating 50W
Nominal impedance 8Ω and 15Ω
Sensitivity 100dB
Chassis type Pressed steel
Voice coil diameter 1.75“, 44.5mm
Voice coil material Round copper
Magnet type Alnico
Frequency range 75-5000Hz
Resonance frequency, Fs 75Hz
DC resistance, Re 6.4Ω & 11.8Ω
Mounting Information
Diameter 12.2“, 309mm
Overall depth 6.5“, 165mm
Magnet structure diameter 5.0“, 128mm
Cut-out diameter 11.1“, 283mm
Mounting slot dimensions 0.31“, 7.9mm Ø
Number of mounting slots 4
Mounting slot PCD 11.7“, 297mm
Unit weight 9.3lb, 4.2kg

 

400 W continuous program power capacity
90° nominal coverage
50 – 20000 Hz response
98 dB sensitivity
XO-2 dedicated crossover network

   

700 W continuous program power capacity
80° nominal coverage
55 – 20000 Hz response
99 dB sensitivity
XO-3 dedicated crossover network
2000 W continuous program power capacity
100 mm (4 in) copper voice coil
45 – 1000 Hz response
95 dB sensitivity
Aluminium demodulating ring allows a very low distortion figure
Double silicone spider with optimized compliance
Ventilated voice coil gap for reduced power compression
Weight2.40 kg9 kg4.20 kg5.60 kg11.20 kg11.80 kg
DimensionsN/AN/AN/AN/AN/AN/A
Additional information
Weight 2.40 kg
Weight 9 kg
Weight 4.20 kg
Weight 5.60 kg
Weight 11.20 kg
Weight 11.80 kg