Sigma Pro 18 A V2
Archive

Sigma Pro 18 A V2

18" Speaker 650 W 8 Ohms - die-cast Basket

Item no.: ESP18A

Guarantee: 24 months

EAN: 4049521027369

Sliding scale: 1

Unit: Piece

Packaging unit: 1

Item highlights:

SIGMA PRO 18A Professional Series

Recommended for professional audio as a woofer in vented enclosures.

Specifications

Product type
Loudspeaker Chassis
Type
PA
Nominal Diameter
18 "
Nominal Diameter
457.2 mm
Voice Coil
3 "
Voice Coil
76.2 mm
Overall diameter
457.2 mm
Pitch Circle Diameter
438.2 mm
Cut- out Measurement
420.5 mm
Diameter of fixing holes
7.1 mm
Depth
207 mm
Nominal Impedance
8 Ohm(s)
Nominal Load Capacity
650 W
maximum rated load
1300 W
Sensitivity (1 W / 1 m)
99 dB
Frequency response
41 - 2400 Hz
Voice Coil Material
copper
Magnet
Ferrite
Depth of the magnetic gap
9.53 mm
Fs (Resonance Frequency)
28 Hz
Re (DC resistance)
6.29 Ohm(s)
Qms (mechanical quality)
8.28
Le (inductance of the voice coil)
1.9 mH
Qes (electrical quality)
0.3
Qts (overall quality)
0.29
Vas (equivalent volume)
441.2
Mms (moving mass)
130 g
BL (power factor)
22.1 T/m
Xmax (maximum displacement)
6.1 mm
Cms (elasticity of the suspension)
0.24 mm/N
Sd (membrane area)
1140 cm²
Weight
11,685 kg

Downloads

Download Centre
In our central download centre, you will find all downloads related to brands, products, and other service topics.

To the download centre

Stories

EMAS logo

We are EMAS certified!

Copyright © 2026 Adam Hall GmbH. All rights reserved. | * Excluding VAT.