Eminence American Standard Beta-6a Midrange - 175 W Rms - 95 Hz To 4 Khz - 8 Ohm (beta6a)

This item is brand-new, factory sealed.

This table charts the specifications for the BETA-6A speaker
* Nominal Basket Diameter: 6-in , 165 mm.
* Nominal Impedance: 8 Ohms.
* Power Rating:
* Watts: 175 W.
* Music Program: 350 W.
* Resonance: 123 Hz.
* Usable Frequency Range: 95 Hz - 4 kHz.
* Sensitivity: 94 dB.
* Magnet Weight: 30 oz..
* Gap Height: 0.25-in , 6.4 mm.
* Voice Coil Diameter: 2-in , 51 mm.
* Thiele & Small Parameters.
* Resonant Frequency (fs): 123 Hz.
* DC Resistance (Re): 5.18 Ohms.
* 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.
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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 Displaced: 0.021 cu.ft. / 0.6 liters.
* Overall Diameter: 6.59-in , 167.4 mm.
* Baffle Hole Diameter: 5.65-in , 143.5 mm.
* Front Sealing Gasket: Yes.
* Rear Sealing Gasket: Yes.
* Mounting Holes Diameter: 0.23-in , 5.8mm.
* Mounting Holes B.C.D.: 6.06-in , 153.9mm.
* Depth: 2.66-in , 67.6 mm.
* Net Weight: 5.6 lbs, 2.54 kg.
* Shipping Weight: 6.3 lbs, 2.86 kgs.
* Materials of Construction.
* Coil Construction: Aluminum voice coil.
* Coil Former: Polyimide former.
* Magnet Composition: Ferrite magnet.
* Core Details: Vented & extended core.
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* Basket Materials: Pressed steel basket.
* Cone Composition: Water resistant paper cone.
* Cone Edge Composition: Treated cloth cone edge.
* Dust Cap Composition: Water resistant treated paper dust cap.