Sale!

Eminence SIGMA PRO-18: 18 inch Pro Woofer

Price: $209.99 $199.99

Recommended for professional audio as a woofer in vented enclosures.
8 ohm: 650 watts / 41-2.4kHz / 3″ voice coil
4 ohm: 700 watts / 32-2kHz / 3″ voice coil
Die-cast aluminum basket
Available in 4 or 8 ohms

Clear
SKU: SIGMA PRO-18 Categories: , ,

Description

SIGMA PRO 18: 18″ Woofer

Recommended for professional audio as a woofer in vented enclosures.

* The 8 ohm version is a good replacement for the Yamaha JAY7010 woofers and more.

Available in 4 or 8 ohms

Click Here to Download 4 ohm PDF Spec Sheet

Click Here to Download 4 ohm PDF Cabinet Design

Click Here to Download 8 ohm PDF Spec Sheet

Click Here to Download 8 ohm PDF Cabinet Design

8 ohm Specs:

Nominal Basket Diameter 18″, 457.2mm

Nominal Impedance* 8 ohms

Power Rating Watts 650W

Music Program 1300W

Resonance 28Hz

Usable Frequency Range 41Hz-2.4kHz

Sensitivity*** 99

Magnet Weight 120 oz.

Gap Height 0.375″, 9.53mm

Voice Coil Diameter 3″, 76.2mm

Thiele & Small Parameters:

Resonant Frequency (fs) 28Hz

DC Resistance (Re) 6.29

Coil Inductance (Le) 1.90mH

Mechanical Q (Qms) 8.28

Electromagnetic Q (Qes) 0.30

Total Q (Qts) 0.29

Compliance Equivalent Volume (Vas) 441.2 liters / 15.6 cu.ft.

Peak Diaphragm Displacement Volume (Vd) 695cc

Mechanical Compliance of Suspension (Cms) 0.24mm/N

BL Product (BL) 22.1 T-M Diaphram Mass inc.

Airload (Mms) 130 grams

Efficiency Bandwidth Product (EBP) 93

Maximum Linear Excursion (Xmax) 6.1mm

Surface Area of Cone (Sd) 1140.0 cm2

Maximum Mechanical Limit (Xlim) 18.0mm

Mounting Information:

Recommended Enclosure

Sealed N/A

Vented 93-212 liters/3.3-7.5 cu.ft.

Overall Diameter 18″, 457.2mm

Baffle Hole Diameter 16.56″, 420.5mm

Front Sealing Gasket Fitted as standard

Rear Sealing Gasket Fitted as standard

Mounting Holes Diameter 0.28″, 7.1mm

Mounting Holes B.C. D. 17.25″, 438.2mm

Depth 8.15″, 207mm

Net Weight 24.5 lbs., 11.1 kg

Shipping Weight 28.1 lbs., 12.8 kg

Materials of Constuction:

Coil Construction Copper voice coil

Coil Former Polyimide former

Magnet Composition Ferrite magnet

Core Details Vented and extended core

Basket Materials Die-cast aluminum basket

Cone Composition Paper Cone

Cone Edge Composition Cloth cone edge

Dustcap Composition Solid composition paper dust cap

4 ohm Specs:

Nominal Basket Diameter 18″, 457 mm

Nominal Impedance* 4 Ω

Power Rating** Watts 700 W

Music Program 1400 W

Resonance 32 Hz

Usable Frequency Range 32 Hz- 2 kHz

Sensitivity*** 97.6 dB

Magnet Weight 120 oz.

Gap Height 0.375″, 9.5 mm

Voice Coil Diameter 3″, 76 mm

Thiele & Small Parameters:

Resonant Frequency (fs) 32 Hz

DC Resistance (Re) 3.35 Ω

Coil Inductance (Le) 0.85m H

Mechanical Q (Qms) 14.79

Electromagnetic Q (Qes) 0.3

Total Q (Qts) 0.29

Compliance Equivalent Volume (Vas) 360.84 liters / 12.74 cu.ft.

Peak Diaphragm Displacement Volume (Vd) 695 cc

Mechanical Compliance of Suspension (Cms) 0.2 mm/N

BL Product (BL) 16.54 T-M Diaphragm Mass Inc.

Airload (MMs) 121 grams

Efficiency Bandwidth Product (EBP) 107

Maximum Linear Excursion (Xmax) 7 mm

Surface Area of Cone (Sd) 1140 cm2

Maximum Mechanical Limit (Xlim) 18.0 mm

Mounting Information:

Recommended Enclosure Volume

Sealed N/a

Vented 84.95-212.38 liters / 3.00-7.50 cu.ft.

Driver Volume Displaced 0.234 cu.ft. / 6.62 liters

Overall Diameter 18″, 457.2 mm

Baffle Hole Diameter 16.56″, 420.6 mm

Front Sealing Gasket Yes

Rear Sealing Gasket Yes

Mounting Holes Diameter 0.28″, 7.1mm

Mounting Holes B.C.D. 17.25″, 438.2mm

Depth 8.15″, 207 mm

Net Weight 24.5 lbs, 11.11 kg

Shipping Weight 28.1 lbs, 12.75 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 Die-cast aluminum basket

Cone Composition Paper cone

Cone Edge Composition Cloth cone edge

Dust Cap Composition Solid composition paper dust cap

0/5 (0 Reviews)