Haut parleur Eminence BETA-10A
[BETA-10A-8] Avis/Critiques Recommended for professional audio, bass guitar, mid-bass or floor monitor applications in sealed enclosures.
Also works well as a mid-bass or woofer in vented enclosures.
SPECIFICATION
Nominal Basket Diameter 10", 254mm
Nominal Impedance* 8 ohms
Power Rating
Watts 250W
Music Program 500W
Resonance 53Hz
Usable Frequency Range 51Hz-3.8kHz
Sensitivity*** 97
Magnet Weight 34 oz.
Gap Height 0.312", 7.92mm
Voice Coil Diameter 2", 50.8mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs) 53Hz
DC Resistance (Re) 5.75
Coil Inductance (Le) 0.67mH
Mechanical Q (Qms) 8.14
Electromagnetic Q (Qes) 0.52
Total Q (Qts) 0.49
Compliance Equivalent Volume (Vas) 60.1 liters / 2.1 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 102cc
Mechanical Compliance of Suspension (Cms) 0.36mm/N
BL Product (BL) 9.6 T-M
Diaphram Mass inc. Airload (Mms) 25 grams
Efficiency Bandwidth Product (EBP) 103
Maximum Linear Excursion (Xmax) 3.0mm
Surface Area of Cone (Sd) 344.9 cm2
Maximum Mechanical Limit (Xlim) 8.6mm
MOUNTING INFORMATION
Recommended Enclosure
Sealed 8.5-14.2 liters/0.3-0.5 cu.ft.
Vented 19.8-70.8 liters/0.7-2.5 cu.ft.
Overall Diameter 10.11", 256.8mm
Baffle Hole Diameter 9.13", 231.8mm
Front Sealing Gasket fitted as standard
Rear Sealing Gasket fitted as standard
Mounting Holes Diameter 0.23", 5.7mm
Mounting Holes B.C. D. 9.6", 243.8mm
Depth 3.98", 101mm
Net Weight 6.8 lbs., 3.1 kg
Shipping Weight 7.8 lbs., 3.6 kg
MATERIALS OF CONSTRUCTION
Coil Construction Aluminum voice coil
Coil Former Polyimide former
Magnet Composition Ferrite magnet
Core Details Vented core
Basket Materials Pressed steel basket
Cone Composition Paper Cone
Cone Edge Composition Cloth cone edge
Dustcap Composition Solid composition paper dust cap
FOOTNOTES
* Please consult eminence.com for specifications of models with alternative impedances.
** Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, non-temperature controlled environment.
*** The average output across the usable frequency range when applying 1W/1M into the nominal impedance. Ie: 2.83V/8ohms, 4V/16ohms. 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 | 2ft. X 2ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Hafler P1500 Trans-Nova amplifier | 2700 cu.ft. chamber with fiberglass on all six surfaces (three with custom-made wedges).
**** BETA 8CX, 10CX, 12CX and ACOUSTINATOR™ CX2008 are coaxial speakers with tweeter sold separately. Published Usable Frequency response contingent upon use of APT 50 HF Driver.
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