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Eminence BETA-15A

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Eminence BETA-15A

15" American Standard Series Speaker

Brand New

$67.99

Availability: In stock now

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Product Description for the Eminence BETA-15A

Multiple units exceed published ratings evaluated under EIA 426A specification while tested in a free-air, non-temperature-controlled environment. Multiple compression drivers exceeded published ratings evaluated under EIA-426A or AES specification while mounted on Eminence’s H290, H290S, or H2EA horn in a non-temperature-controlled environment.

The average output across the usable frequency range when applying 1W/1m into the nominal impedance. i.e: 2.83V/8Ω, 4V/16Ω. Eminence response curves are measured under the following conditions: All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software calibrated) mounted 1m from wall/baffle | 2 ft. x 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Yamaha P3500S amplifier | 2700 cu. ft. chamber with fiberglass on all six surfaces (three with custom-made wedges). Compression drivers were tested using a 2ft x 2ft baffle built into the wall with horn front mounted.

Features

  • Nominal Basket Diameter : 15", 381 mm
  • Nominal Impedance* : 8 Ω
  • Power Rating*
  • Program Power : 600 W
  • Watts : 300 W
  • Resonance : 35 Hz
  • Usable Frequency Range : 45 Hz - 3.7 kHz
  • Sensitivity* : 98.2 dB
  • Gap Height : 0.31", 7.9 mm
  • Voice Coil Diameter : 2", 51 mm

Thiele & Small Parameters

  • Resonant Frequency (fs) : 35 Hz
  • DC Resistance (Re) : 6.32 Ω
  • Coil Inductance (Le) : 1.1m H
  • Mechanical Q (Qms) : 8.1
  • Electromagnetic Q (Qes) : 0.63
  • Total Q (Qts) : 0.58
  • Compliance Equivalent Volume (Vas) : 334.6 liters / 11.82 cu.ft.
  • Peak Diaphragm Displacement Volume (Vd) : 330 cc
  • Mechanical Compliance of Suspension (Cms) : 0.35 mm/N
  • BL Product (BL) : 11.5 T-M
  • Diaphragm Mass Inc. Airload (MMs) : 60 grams
  • Efficiency Bandwidth Product (EBP) : 56
  • Maximum Linear Excursion (Xmax) : 4 mm
  • Surface Area of Cone (Sd) : 823.7 cm2
  • Maximum Mechanical Limit (Xlim) : 11.6 mm

Mounting Information

  • Recommended Enclosure Volume
  • Sealed : 45-62 liters / 1.6-2.2 cu.ft.
  • Vented : 99-175.6 liters / 3.5-6.2 cu.ft.
  • Driver Volume Displaced : 0.118 cu.ft. / 3.33 liters
  • Overall Diameter : 15.15", 384.8 mm
  • Baffle Hole Diameter : 13.87", 352.3 mm
  • Front Sealing Gasket : Yes
  • Rear Sealing Gasket : Yes
  • Mounting Holes Diameter : 0.25", 6.4mm
  • Mounting Holes B.C.D. : 14.56", 369.8mm
  • Depth : 6.05", 153.7 mm

Materials Of Construction

  • Coil Construction : Copper voice coil
  • Coil Former : Polyimide former
  • Magnet Composition : Ferrite magnet
  • Core Details : Vented and extended core
  • Basket Materials : Pressed steel basket
  • Cone Composition : Paper cone
  • Cone Edge Composition : Cloth cone edge
  • Dust Cap Composition : Solid composition paper dust cap
SKU EMN-BETA15A
Brand Eminence
Weight 11.0800
Dimensions (WxHxD) No

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Eminence BETA-15A

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