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Cambridge Audio SX-120

Powered subwoofer

Item #: 779SX120

This item is no longer available.

Original Price: $349.99

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Overview

Our take on the Cambridge Audio SX-120

The SX-120 may be compact, but it can certainly pack a punch when needed. A built-in 70-watt amplifier helps it deliver some serious low bass performance all the way down to 34Hz. It's a perfect match for Cambridge's SX Series speaker line, and works great when used in a stereo music setup or home theater system along with the SX-50 or SX-60 bookshelf speakers.

Give your sound system a deep foundation

The SX-120 may be compact, but it can certainly pack a punch when needed. A built-in 70-watt amplifier helps it deliver some serious low bass performance all the way down to 34Hz. It's a perfect match for Cambridge's SX Series speaker line, and works great when used in a stereo music setup or home theater system along with the SX-50 or SX-60 bookshelf speakers.

Designed and engineered with passion

All of Cambridge Audio's SX Series speakers are carefully designed and tested at their London facility by a team of engineers fueled by their passion for incredible sound. The SX-120 uses an 8" forward-firing woofer and dual rear ports to create full-bodied, dynamic bass for all your favorite music, movies, and video games. The rigid cabinet comes with spiked feet to help keep the bass tight and well-controlled. It means you'll hear clean, detailed lows, even when you crank up the volume.

What's in the Box:

  • Powered subwoofer
  • 6' AC power cord
  • Detachable grille
  • 4 Spiked feet
  • Installation Guide
  • Important Safety Instructions

Product Highlights:

  • bass reflex (ported) enclosure
  • 8" long-throw woofer with treated paper cone for smooth and even frequency response
  • built-in 70-watt RMS amplifier
  • frequency response 34-150 Hz
  • continuously variable low-pass 50-150 Hz crossover
  • phase switch
  • auto on/off
  • line-level/LFE (mono) input for use with home theater receiver's subwoofer output
  • matte black finish
  • 11-13/16"W x 11-13/16"H x 12-1/4"D
  • warranty: 5 years woofer, 3 years amplifier
  • Our 60-day money-back guarantee
Reviews

Cambridge Audio SX-120 Reviews


Details

Hands-on research

What's in the box?

Download the Cambridge Audio SX-120 manual

  • Powered subwoofer
  • 6' AC power cord
  • Detachable grille
  • 4 Spiked feet
  • Installation Guide
  • Important Safety Instructions

Features and Specs

Enclosure Bass Reflex
Video Shielded No
Woofer Size (inches) 8
Woofer Composition Treated Paper
Firing Direction Front
Wireless No
Preamp-Level Inputs Yes
Speaker-Level Inputs No
Speaker-Level Outputs No
Low-Pass Crossover Freq 50-150
High-Pass Crossover Freq None
Phase Switch Yes
Amplifier Output (watts) 70
Frequency Response 34-150 Hz
Height (inches) 11-5/8
Width (inches) 11-11/16
Depth (inches) 13-3/4
Weight 17 lbs
Speaker Parts Warranty 5 Years
Speaker Labor Warranty 5 years
Amplifier Parts Warranty 3 Years
Amplifier Labor Warranty 3 Years

Product Research

Features

8" Long-Throw Woofer: The Cambridge Audio SX-120 powered sub employs a custom designed 8" long-throw woofer with treated paper cone for a smooth and even frequency response.

70W Amplifier: The SX-120 powered sub use a 70W (RMS) amplifier for dynamic bass response.

Rigid  Bass Reflex Enclosure: The Cambridge Audio powered sub features a rigid MDF cabinet, expert designed to minimize standing waves and deliver deeper, tighter bass response. The enclosure features two rear-firing ports for improved efficiency and bigger bass output.

RCA/LFE Input: The powered sub has gold plated left & right RCA line-level inputs for use with receivers having a subwoofer or stereo preamp output that do not contain their own low-pass crossover. The left channel RCA input doubles as the LFE input, if your receiver has an LFE output and a built-in low-pass crossover.

Controls: The Cambridge Audio SX-120 features individual controls to tailor volume, crossover frequency. and phase adjustment.

  • Volume Control: The SX-120 powered subwoofer has a rear-panel rotary volume control to adjust the volume of the subwoofer relative to the other speakers in the system.
  • Crossover Frequency: The SX-120 offers a continuously variable low-pass filter, adjustable from 50-150 Hz.
  • Phase Adjustment: The subwoofer's phase adjustment allows you to adjust the subwoofer's phase between 0° or 180°. If the bass sounds muddy or unclear, adjusting the phase control can sometimes strengthen the bass performance.

Auto On/Off: The SX-120's Auto On/Off feature will switch the powered subwoofer On and Off automatically by signal detection. The powered sub will enter "standby" mode when there has been signal activity for 30 minutes or more.

Applications: The SX-120 is ideally suited to complement Cambridge Audio's SX series speaker line-up and other brands of speakers, adding deep and rich bass extension to your movies and music soundtracks.

Placement Options: The powered subwoofer can be placed almost anywhere in the room as bass sound is largely non-directional. For best results, place the subwoofer on the same side of the room as your front speakers. Corner placement will increase the powered subwoofer's output.

Spiked Feet: The Cambridge Audio SX-120 powered subwoofer includes four spiked feet for added stability on your carpeted floors. The spiked feet are adjustable, in case you have uneven floors. The spiked feet add 1.25" to the height of the powered sub. The powered subwoofer can be used with or without the four spiked feet, in case you have tile or hardwood floors.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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