Description

Eminence Delta Pro-12A

The Eminence Delta Pro-12A is a 12-inch 800-watt cast frame speaker which is recommended for professional audio in sealed, vented, and horn-loaded enclosures. Ideal for full-range, mid/hi, and monitor wedges. Extremely efficient through the midrange, but with a surprisingly strong bass kick as well.

For all high power bass applications, ideal for 2-way PA systems and sound reinforcement systems. Also suitable for lead and bass guitar, keyboards, guitar combos, club music systems and stage monitors. The Delta Pro 12 has a 2.5″ polyamide-imide coated two-layer 28 ga. aluminum voice coil, kapton coil former, 80 oz. ferrite magnet, vented and extended core, paper cone, rolled cloth cone edge with deep corrugations for extended Xmax, and a paper dust cap. Available in 8 ohms.

Features:

• Kapton coil former
• Ferrite magnet
• Pressed steel basket
• Polyamide-imide coated aluminum voice coil
• Paper cone/cloth cone edge
• Solid composition felt dust cap
• Die-cast aluminum frame
• Vented and extended pole piece
• Cloth M-roll surround

Specifications:

• Nominal Basket Diameter 12″, 304 mm
• Impedance 8
• Power Rating 400W rms / 800W Program
• Resonance 51 Hz
• Usable Frequency Range 52Hz to 4.5Khz
• Average Sensitivity 1W @ 1m 99.2 dB
• Magnet Weight 80 oz.
• Voice Coil Diameter 2.5″, 63.5mm
• Weight: 17.9 lbs.

THIELE-SMALL PARAMETERS

• Resonant Frequency (Fs):51 Hz
• DC Resistance (Re):5.71 ohms
• Voice Coil Inductance (Le): 0.84 mH
• Mechanical Q (Qms): 7.56
• Electromagnetic Q (Qes): 0.37
• Total Q (Qts): 0.35
• Compliance Equivalent Volume (Vas): 2.9 ft.³
• Mechanical Compliance of Suspension (Cms): 0.21 mm/N
• BL Product (BL): 15.3 Tm
• Diaphragm Mass Inc. Airload (Mms):48g
• Maximum Linear Excursion (Xmax): 4.6 mm
• Surface Area of Cone (Sd): 532.4 cm²

MATERIALS OF CONSTRUCTION

• Cone Material: Paper
• Surround Material: Cloth
• Voice Coil Wire Material: Aluminum
• Voice Coil Former: Kapton / Polyimide
• Basket / Frame Material: Cast Aluminum

MOUNTING INFORMATION

• Overall Outside Diameter: 12.38″
• Baffle Cutout Diameter: 11.07″
• Depth: 6.22″
• # Mounting Holes: 8

OPTIMUM CABINET SIZE (DETERMINED USING BASSBOX 6 PRO HIGH FIDELITY SUGGESTION)

• Sealed Volume: 0.54 ft.³
• Sealed F3: 125 Hz
• Vented Volume: 1.42 ft.³
• Vented F3: 74 Hz

EMINENCE DELTA PRO-12A 12″ CAST FRAME DRIVER

• Brand: Eminence Speaker
• Model: Delta Pro-12A
• Part Number: 290-510
• UPC: 876358000333
• Product Category: Woofers, Subwoofers & Midrange Speakers
• Unit of Measure: EA