Value Pack Of 4 Eminence Delta 12LF 8 Ohm Bass Drivers

This is a set of FOUR Eminence 8 Ohm Delta 12LF bass speakers.

Each Eminence American Standard model can be identified by its economical Stamped Steel chassis. Although more affordable than cast aluminium, these frames provide an excellent and versatile chassis. Eminence coat each basket and all metal components with an epoxy-acrylic finish using their in-house e-coat process. The thickness of that coating is controlled to within 0.001"; critical when working with close tolerance transducer motor designs. They then add front and rear sealing gaskets on each model to accommodate front or rear loading.

There are 24 unique models available in the American Standard series. Each was designed for versatility in a range of applications. From 6.5-15" models with applications ranging from standard sub-woofers, two-way enclosures, and coaxials, to truncated line array models, monitor woofers, and high performance midranges setting records for output in car audio, no other loudspeaker line provides more choices, power handling, performance, and reliability for the price. As with their Professional series, each product includes a lot of Made in the USA pride. With over 1,200 USA dealers and distributors worldwide you can easily find them in a store near you.

Application Notes: LF Models are designed with extended Xmax to deliver more bass than standard models and provide a "true woofer" for three way applications.

Recommended for professional audio mid-bass or floor monitor applications in a sealed enclosure. Also suitable as a woofer in vented, bass guitar or PA enclosures.


Specifications:

Nominal Basket Diameter 12", 304.8mm

Nominal Impedance* 8 ohms

Power Rating**

Watts 500W

Music Program 1000W

Resonance 51Hz

Usable Frequency Range 44Hz - 3kHz

Sensitivity*** 94.6dB

Magnet Weight 56 oz.

Gap Height 0.37", 9.53mm

Voice Coil Diameter 2.5", 63.5mm

Thiele & Small Parameters:

Resonant Frequency (fs) 51Hz

DC Resistance (Re) 6.06

Coil Inductance (Le) 1.45mH

Mechanical Q (Qms) 7.28

Electromagnetic Q (Qes) 0.51

Total Q (Qts) 0.47

Compliance Equivalent Volume (Vas) 67.9 liters / 2.4 cu.ft.

Peak Diaphragm Displacement Volume (Vd) 243cc

Mechanical Compliance of Suspension (Cms) 0.19mm/N

BL Product (BL) 14.1 T-M

Diaphragm Mass Inc. Airload (MMs) 51 grams

Efficiency Bandwidth Product (EBP) 100

Maximum Linear Excursion (Xmax) 4.8mm

Surface Area of Cone (Sd) 506.7 cm2

Maximum Mechanical Limit (Xlim) 13.5mm

Mounting Information:

Recommended Enclosure Volume

Sealed 19.8-28 liters / 0.7-1 cu.ft.

Vented 25.5-102 liters / 0.9-3.6 cu.ft.

Driver Volume Displaced 137.3 cu.in. / 2.25 liters

Overall Diameter 12.03", 305.5mm

Baffle Hole Diameter 10.95", 278.1mm

Front Sealing Gasket Fitted as standard

Rear Sealing Gasket Fitted as standard

Mounting Holes Diameter 0.25", 6.4mm

Mounting Holes B.C.D. 11.59", 294.3mm

Depth 5.35", 136mm

Net Weight 11.8 lbs, 5.4 kg

Shipping Weight 14 lbs, 6.4 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

vCone Edge Composition Cloth cone edge

Dust Cap Composition Solid composition paper dust cap