Цена: 6 480 руб.
Eminence ALPHA-12A НЧ-СЧ динамик 12", 150W(RMS),220W(AES),300W(PROG), 8 Ом., 51 Hz-4.3 kHz, 95.6 dB(1W/1m), катушка 1,5".
Eminence ALPHA-12A Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure.
Nominal Basket Diameter: 12", 305 mm
Nominal Impedance:* 8 Ohm
Program Power: 300 W
Nominal Power: 150 W
Resonance: 49 Hz
Usable Frequency Range: 51 Hz - 4.3 kHz
Sensitivity:* 95.6 dB
Magnet Weight: 20 oz.
Gap Height: 0.25", 6.4 mm
Voice Coil Diameter: 1.5", 38 mm
Thiele & Small Parameters:
Resonant Frequency (fs): 49 Hz
DC Resistance (Re): 6.3 Ohm
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 / 4.29 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
Recommended Enclosure Volume:
Sealed: 17-22.7 liters / 0.6-0.8 cu.ft.
Vented: 56.6-113.3 liters / 2-4 cu.ft.
Driver Volume Displaced: 0.063 cu.ft. / 1.78 liters
Overall Diameter: 12.26", 311.4 mm
Baffle Hole Diameter: 11.06", 280.9 mm
Front Sealing Gasket: Yes
Rear Sealing Gasket: Yes
Mounting Holes Diameter: 0.25", 6.4mm
Mounting Holes B.C.D.: 11.71", 297.4mm
Depth: 4.73", 120.1 mm
Net Weight: 5.3 lbs, 2.4 kg
Shipping Weight: 7.4 lbs, 3.36 kgs
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
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/8 Ohm, 4V/16 Ohm 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.
BETA 8CX, 10CX and 12CX are coaxial speakers with tweeter sold separately. The data for these coaxial woofers was calculated with the ASD:1001 driver screwed into the woofer, but not active.
Prices, specifications and product cosmetics are subject to change without notice.