Eminence Beta 15 Bass Speaker (300 Watts, 15 in.)
8 ohms. Resonant peak 35Hz.
Certain items must be exchanged directly through the manufacturer if they are found to be defective. This includes tubes, strings, pickups, raw frame speakers, drum heads, drumsticks, cymbals, cowbells, and harmonicas. These items can only be returned to us if they are unopened.
We DO NOT COLLECT TAX except on orders shipped to New Jersey.

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PRODUCT DESCRIPTION
TECHNICAL DESCRIPTION
Impedance- 8 ohm
Power Rating- 300W
Music Program- 600W
Resonance- 35Hz
Usable Frequency Range- 45Hz - 3.7kHz
Average Sensitivity- 1W @ 1m 98 dB
Magnet Weight- 34oz.
Gap Height- 0.312", 7.92mm
Voice Coil Diameter- 2", 50.8mm
Resonant Frequency- 35Hz
Impedance (RE)- 6.32 ohm
Coil Inductance (Le)- 1.10mH
Electromagnetic Q (Qes)- 0.63
Mechanical Q (Qms)- 8.10
Total Q (Qts)- 0.58
Compliance Equivalent Volume (Vas)- 334.6 liters (11.82 cu.ft.)
Peak Diaphragm Displacement Volume (Vd)- 330cc
Mechanical Compliance of suspension (Cms)- 0.35mm/N
BL Product (BL)- 11.5 TM
Diaphragm Mass inc. Airload (Mms)- 60 grams
Equiv. Resistance of mechanical suspension loss (Rms)- 1.61N*sec/M
Efficiency Bandwidth Product (EBP)- 56
Voice Coil Overhang (Xmax)- 4.0mm
Surface Area of Cone (Sd)- 823.7cm2
Impedance at Resonance (Zmax)- 88 ohm
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
Dustcap composition: Solid composition paper dust cap
Important Note
Watts: The guaranteed long term power rating throughout the usable frequency range of the speaker.
(Translation: the speaker will operate continuously at any frequency within the speakers specified frequency range when driven at this power. The "Watts" rating is similar to RMS, but is really more indicative of long term thermal capability.)
Music Program: The speaker will safely and reliably handle the varying frequencies of musical content at this power rating. The "Music Program" rating is more indicative of what you can expect in the real world with the speaker operating within the appropriate enclosure reproducing music or vocal audio program.
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