SIGMA PRO-18A

LF Driver
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Overview

LF DriverSIGMA PRO series
Eminence

SIGMA PRO-18A

Size
18"
Impedance
8Ω
RMS Power
650W
Sensitivity
99dB
EBP
93
Either alignment
Vd
695cm³
Datasheet

T/S Parameters

Valid
Manufacturer
Fs28Hz
Qts0.29
Qes0.30
Qms8.3
Vas441.2L
Re6.3Ω
Le1.90mH
BL22.1Tm
Sd1140cm²
Mms130g
Xmax6.1mm
SPL99dB
Power650W
Impedance8Ω
F Low41Hz
F High2000Hz

Pricing & availability

Price movement

Best current price

Updated 17 May 2026

bluearan
£189.00
Avg £206.05£17.05 below avg (-8.3%)
inc VAT
Buy now

Dimensions & Physical

Weight11.1kg
Diameter457.2mm
Overall Depth207.0mm
Cutout Diameter420.6mm
Bolt Circle Diameter438.1mm

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SIGMA PRO-18A
Reference
Eminence
SIGMA PRO-18A
18"
Best current price
£189.00
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Only active params are shown here. Size stays fixed automatically.

5 active T/S params, plus size.

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