Pro Audio

American Standard Series

Cab Design Spec Sheet


High power 6.5 inch Mid/Bass driver for use in concert sound systems or in high power auto sound as a mid/bass or a midrange driver. Works well in tiny sealed or vented enclosures, and in Infinite Baffles too.

Suggested Retail  $104.99
Your Price  $64.99

For contiguous USA shipments only.

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This table charts the specifications for the BETA-6A speaker
Speaker Detail
Nominal Basket Diameter6", 165 mm
Nominal Impedance*8 Ω
Power Rating*
Program Power350 W
Watts175 W
Resonance123 Hz
Usable Frequency Range95 Hz - 4 kHz
Sensitivity*94 dB
Magnet Weight30 oz.
Gap Height0.25", 6.4 mm
Voice Coil Diameter2", 51 mm
Thiele & Small Parameters
Resonant Frequency (fs)123 Hz
DC Resistance (Re)5.18 Ω
Coil Inductance (Le)0.43m H
Mechanical Q (Qms)3.46
Electromagnetic Q (Qes)0.66
Total Q (Qts)0.56
Compliance Equivalent Volume (Vas)3.51 liters / 0.12 cu.ft.
Peak Diaphragm Displacement Volume (Vd)61.1 cc
Mechanical Compliance of Suspension (Cms)0.15 mm/N
BL Product (BL)8.13 T-M
Diaphragm Mass Inc. Airload (MMs)11 grams
Efficiency Bandwidth Product (EBP)185
Maximum Linear Excursion (Xmax)4.5 mm
Surface Area of Cone (Sd)129.9 cm2
Maximum Mechanical Limit (Xlim)5.7 mm
Mounting Information
Recommended Enclosure Volume
Sealed 2.38-9999.99 liters / 0.08-9999.99 cu.ft.
Vented 5.1-14.16 liters / 0.18-0.5 cu.ft.
Driver Volume Displaced0.021 cu.ft. / 0.6 liters
Overall Diameter6.59", 167.4 mm
Baffle Hole Diameter5.65", 143.5 mm
Front Sealing GasketYes
Rear Sealing GasketYes
Mounting Holes Diameter0.23", 5.8mm
Mounting Holes B.C.D.6.06", 153.9mm
Depth2.66", 67.6 mm
Net Weight5.6 lbs, 2.54 kg
Shipping Weight6.3 lbs, 2.86 kgs
Materials of Construction
Coil ConstructionAluminum voice coil
Coil FormerPolyimide former
Magnet CompositionFerrite magnet
Core DetailsVented and extended core
Basket MaterialsPressed steel basket
Cone CompositionWater resistant paper cone
Cone Edge CompositionTreated cloth cone edge
Dust Cap CompositionWater resistant treated 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/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.

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.