Cerwin Vega P1800SX Powered Subwoofer

Posted 3 years ago by


The newest edition to the CV professional audio speaker lineup is the P-series powered & portable speakers that safely live up to the Cerwin Vega philosophies of high quality sound and durability.  The Cerwin Vega P-series speakers are available in a 15-inch, active 2-way speaker setup (P1500X) and a powered subwoofer version in the 18-inch configuration (P1800SX).  In this review we will focus on the P1800SX subwoofer model as the review of the P1500X was completed yesterday morning and can be found in the next story below.

Staff Review

Review Video & Demo

Setup & First Impressions

Cerwin Vega P1800SX Powered 18-inch Subwoofer Review Summary:

The Cerwin Vega brand has been around for a very long time. My very first set of DJ speakers were a retired pair of Cerwin Vega 12-inch passive speakers in wood cabinets from my father’s old stereo system from back in the early 80’s. I’ve used many different CV speaker variants throughout the years, so I already know what to expect from this professional speaker brand as a whole. The newest edition to the CV professional audio speaker lineup is the P-series powered & portable speakers that safely live up to the Cerwin Vega philosophies of high quality sound and durability. The Cerwin Vega P-series speakers are available in a 15-inch, active 2-way speaker setup (P1500X) and a powered subwoofer version in the 18-inch configuration (P1800SX). In this review we will focus on the P1800SX subwoofer model as the review of the P1500X was completed yesterday morning and can be found here.

The first impression of the P1800SX Cerwin Vega subwoofer is very good as the subwoofer has a solid 18mm plywood construction with a very nice black textured/protective finish to protect it against bumps and scrapes during transport. All of the corners and edges are rounded off so that they don’t get caught on anything. The weight of the subwoofer is about 84lbs. The front of the cabinet has a sturdy black grill that protects the woofer from any accidental impacts. The bottom portion of the cabinet is cut away to allow for plenty of space for the bass to push the air out towards the front of the subwoofer enclosure. The cabinet also has a pair of rubber-coated heavy-duty handles on the sides for easy transport. There is a 35mm pole mount on the top to mount a full-range speaker on top using a standard speaker pole. The bottom of the P1800X features low-profile rubber feet and there are optional heavy-duty steel wheels that come in the box for those who want to mount them for DJ’s who need to move them around a lot.


The P1800SX subwoofer is powered by a 2000-watt Class-D lightweight (fan-cooled) internal amplifier which connects to a standard power outlet with the included IEC power cable.. The speaker runs at about 725-watts continuously which powers the 18-inch subwoofer. The bass performance on this subwoofer was one of the best I’ve ever used in this small style form-factor. The bass was really clear and deep and it didn’t vibrate excessively when super-deep bass audio is present. The sound coming out of the woofer is also highly-responsive and accurate. Just as with the P1500X powered 15-inch full-range speakers, we never had any issues with popping, hissing, excessive interference, or humming during our two hour stress test of the P1800SX. We even cranked the volume up to very high levels and the subwoofer never hit the limiter or cut out on us. The P1800SX reminds me of a small version of the Cerwin Vega Earthquake subwoofers that were offered a long time ago and are still featured in lots of club installations today. This is high quality and top-performance at its best.

The CV P1800SX has a good range of input and output options found on the back of the powered sub. There are two XLR/quarter-inch combo inputs and there are (2) XLR Outputs to connect the subwoofer to the inputs of another amp (for passive speakers) or directly to the other active speakers in the setup. There is also another Link output that can be used as well. There are also on/off switches to change the sound characteristics of the P1800SX speaker which are Polarity Reverse (to change the sound), Vega Bass Boost (to add an extra layer of bass to the output), High Pass Filter (to only allow the higher frequencies to pass through the outputs), and the Front Limiter Light (to let the user know when the speaker is clipping or “in the red”). Last but not least, there is a Main volume control knob for the whole speaker’s overall volume output and Indicators for Signal/Clip, Power, Limiter, and Protect.

Conclusion / Recommended For

In conclusion, The Cerwin Vega P-Series lineup is a truly professional and high-quality powered speaker range that is perfect for permanent club and pro-audio setups or for the mobile DJ who wants the best performance from a speaker system. The price of the P1800SX subwoofer is a bit high compared to other subwoofers on the market (at $1000 each) but the performance is on-par with the price meaning you get what you pay for. The P1800SX has incredibly deep bass response and tight accuracy for good bass reproduction. The overall construction is solid and the high-powered 725-Watt internal amplifier can bump for hours and hours without any degradation or wavering throughout the performance. Anyone looking for a new subwoofer to complete their high-quality and professional setup should take a long and hard look at the Cerwin Vega P1800SX powered subwoofer.

Pros & Cons


  • True 725 Watts RMS Continuous Amplified Subwoofer System
  • Solid Construction with Textured Finish
  • Superb Sound Quality - Deep/Responsive Bass
  • Good Input/Output Options


  • Slightly Higher Price than other Subwoofers

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Features & Specs

Cerwin Vega P1800SX Powered PA Subwoofer Features:

Fully integrated sound reinforcement system results in a simplified solution to delivering public address, entertainment and performance monitoring
Rugged enclosure with multiple handle locations makes transport and setup safe and easy
Full-range and subwoofer models use efficient Cerwin Vega woofers for low-frequency bass with punch
The integrated mixer and efficient amplifier design reduces the amount of gear required for an easier setup and less worry about limited power resources
Angle-adjustable pole mount socket, side-wedge shaped enclosure and M10-threaded suspension points support a variety of permanent and portable setups
Stackable design to maximize storage area and thick, powdered coated grill protects the drivers during transportation and storage

Cerwin Vega P-Series

Built-in 3-channel mixer with easy to identify controls, and intuitive layout for fast setup and minimal connections
Thru and Mix outputs for fast ‘daisy-chain’ connections and system expandability
User controlled digital filters and Enhanced EQ allow the system to be tuned to the exact requirements of the event

The P1800SX subwoofer contains a 2000 Watt amplifier design capable of delivering low-frequency punch
Built-in limiter with on/off LED indicator provides essential protection to reduce down-time and prevent component damage

Proprietary Cerwin Vega Hemi-Conical Waveguide gives smooth on and off axis frequency response
High Frequency Drivers - compression driver provides natural sounding instruments and vocals
Low Frequency Drivers - Metal frame, reflex loaded woofers achieve accurate bass response and provides the punch you expect from a Cerwin Vega system
Direct-firing subwoofer features internal bracing to provide additional support during extreme performance situations.

Cerwin Vega P1800SX Powered PA Subwoofer Specifications:

System Type: Active Subwoofer, bass reflex
Frequency Range (-10dB): 31.5 Hz - 272.0 Hz
Frequency Response (±3 dB): 38.0 Hz - 183.0 Hz
Maximum SPL(1) @ 1m: 136 dB
Amplifier Type: Class D
Amplifier Rating:
2000 Watts Dynamic
650 Watts Continuous
Low Frequency Driver: 18 inch
CH 1 and 2 Neutrik XLR/TRS inputs
THRU 1 and 2 - XLR, LINK - XLR
Impedance: CH 1 and 2 - 20 kΩ
Indicators: Signal/Clip, Power, Limiter, Protect
Enclosure: 18mm reinforced wood cabinet
Grille: 18 gauge, perforated steel
Mounting and Suspension: 35mm pole socket
Operating Temperature: -20° to 55°C
Dimensions (H x W x D): 24.25 x 20.0 x 24.5inches
84.0 lbs with casters
77.0 lbs without casters
Shipping Dimensions (H x W x D): 27.25 x 22.0 x 26.5inches
Shipping Weight: 93.5 lbs

Best Price for the Cerwin Vega P1800SX Powered Subwoofer

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