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Celestion PowerProX18 18" Professional Subwoofer

CelestionPart # 294-1996
Model: PowerProX18

The Celestion PowerProX18 is an excellent choice for experiencing the deep, earth-shaking bass you've always craved. Designed for professional audio applications, this subwoofer pushes the boundaries of low-frequency performance, delivering unparalleled power, precision, and clarity to your sound system.

Key Features

  • Engineered for maximum performance and long-term reliability
  • Dynamic airflow venting keeps voice coil temperatures on average 68°F (20°C) lower for better heat management
  • Polysiloxane laminated dual suspension enhances stability and ensures symmetrical cone movement
  • Aluminum demodulation ring minimizes harmonic and intermodulation distortion from voice coil displacement
  • Weatherproof cone coating on both sides protects against moisture and boosts durability
  • Made in the UK
Your Price: $319.00
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MSRP: $478.50
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Overview

Celestion PowerProX18 18" Professional Subwoofer

Celestion PowerProX18 18" Subwoofer 8 Ohm

The PowerProX18 is engineered to deliver serious bass performance in professional environments, handling up to 1,200 W AES power continuously and surging to 2,400 W program in sustained use. Its 97 dB sensitivity means it plays louder with less amplifier demand—ideal for cinema, nightclub, or live concert applications.

Celestion’s innovative thermal management, including dynamic airflow venting, keeps the voice coil up to 68 °F (20 °C) cooler than comparable speakers—reducing power compression and ensuring consistent performance even after extended use. The speaker’s polysiloxane laminated dual suspension stabilizes cone movement, while the aluminium demodulation ring minimizes distortion and improves clarity under heavy excursion.

Durability is built-in: a double-sided moisture-resistant coating protects the glass-loaded cellulose cone for indoor/outdoor consistency, while the cast-aluminum chassis withstands repeated transport and installation wear. These features make the PowerProX18 a top-tier choice for pro audio applications demanding reliability, clarity, and power.

Frequency Response and Impedance Curves

Product Details

BrandCelestion
ModelPowerProX18
Part Number294-1996
UPC739894660556
Unit of MeasureEach
Weight32.85

Product Specifications

Power Handling (RMS)1200 Watts
Power Handling (MAX)2400 Watts
Impedance8Ω
Frequency Response35 to 1000Hz
Sensitivity97dB 2.83V/1m
Voice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)34.8Hz
DC Resistance (Re)5.1Ω
Voice Coil Inductance (Le)1.61mH
Mechanical Q (Qms)3.147
Electromagnetic Q (Qes)0.431
Total Q (Qts)0.379
Compliance Equivalent Volume (Vas)6.67ft³
Mechanical Compliance of Suspension (Cms)0.091mm/N
BL Product (BL)24.38T·m
Diaphragm Mass Inc. Airload (Mms)229.98g
Maximum Linear Excursion (Xmax)9.3mm
Surface Area of Cone (Sd)187.6cm²

Materials of Construction

Cone MaterialPaper / Glass Fiber
Surround MaterialCloth
Voice Coil Wire MaterialCopper
Voice Coil FormerFiberglass
Basket / Frame MaterialCast Aluminum
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter18"
Baffle Cutout Diameter16.29"
Depth8.9"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume2.375ft³
Sealed F372.4Hz
Vented Volume5.5ft³
Vented F337.8Hz

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