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  1. Home
  2. Cambridge Audio Speakers
  3. Passive Bookshelf Speakers
  4. Cambridge Audio SX-50
Cambridge Audio SX-50 Review
Cambridge SX-50 - Front View

Compare To

Main Features

  • 1" Dome Tweeter
  • 5.25" Treated paper Woofer
  • 50-22k Hz Frequency Response
  • 90 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: 10-100 watts
  • Weight: 6.60 lbs / 3.00 kg
  • Dimensions(HxWxD): 8.8"x6.3"x9.4" / 225.0 x 161.0 x 240.0mm
MSRP: $199 (list price)
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Cambridge SX-50 Review
Cambridge SX-50 Cambridge SX-50
Check price atAmazon›

Made by Cambridge Audio · United Kingdom · since 1968 · sold through dealers

Cambridge Audio SX-50 is a 2-way Passive Bass Reflex Bookshelf speaker by Cambridge Audio. It was released in 2019. It features a 1" Dome Tweeter and 1 x 5.25" Treated paper Woofer. The speaker has a frequency range of 50-22k Hz and a sensitivity of 90 dB. Cambridge SX-50 has an MSRP of 199$ per pair.

Room Size Suitability

The size of the room where you plan to use the Cambridge SX-50 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:

Listening Environment* Suitability
Near-fieldAverage
Small RoomGood
Mid-size RoomAverage
Large RoomPoor
Very Large RoomBad

(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2. Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)

Cambridge Audio's SX Series of Loudspeakers

SX-50 is a member of Cambridge Audio's SX series of Passive speakers. The SX range is Cambridge Audio's affordable line of traditional bookshelf and floorstanding speakers. Below you can see the main specs of these speakers.

Cambridge Audio SX Series Speakers
Model Frequency SensitivityImpedance Woofer
Cambridge SX-50
50-22k Hz 90 dB8Ω 1 x 5.25"
Cambridge SX-60
Compare
41-22k Hz 89 dB8Ω 1 x 6.5"

Frequency Response of the Cambridge SX-50 Speaker

Cambridge SX-50 has a Frequency response range of 50-22k Hz and Power Range of 10-100 watts. With a minimum frequency of 50 Hz, SX-50 delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.

Here we have a comparison of how SX-50's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Bookshelf Speakers
Cambridge SX-50
Min
Average
Median
Thinking about a subwoofer for the Cambridge SX-50?
  • Work out the crossover setting - it follows from this speaker's 50 Hz low end
  • Powered subwoofers under $300 - a similar price range to these speakers
  • Every powered subwoofer we cover, whatever the budget

Cambridge SX-50 Tweeter
Cambridge SX-50's Silk Dome Tweeter

Impedance and Sensitivity

Cambridge SX-50's nominal impedance level is 8 ohms and has a sensitivity of 90 dB.

Sensitivity
Bookshelf Speakers
Cambridge SX-50
Min
Average
Median

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Cambridge Audio SX-50 is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

90dB of the Cambridge Audio SX-50 is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the Cambridge SX-50 plays in your room →

What amplifier does the Cambridge SX-50 need?

At normal listening levels in a medium room, about 7.5–100 W per channel into 8 ohms. Set your own conditions and we will rank every amplifier we cover.

We check power, impedance safety and current delivery - not just watts.

Prefer to browse? Integrated amplifiers under $300, or every amplifier we cover.

Input Type

SX-50 features 5-way post type connectors. Bi-amping and Bi-wiring are not possible.

Work out what gauge speaker cable this run needs →

Cambridge SX-50 Back View
Cambridge SX-50 Back View

Cambridge SX-50 Terminals
Cambridge SX-50's 5-way post terminals

Cambridge SX-50 External Dimensions and Weight

Cambridge SX-50 has external dimensions of (Height x Width x Depth) 8.8 x 6.3 x 9.4inch (225.0 x 161.0 x 240.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of Cambridge SX-50 is approximately 386.4cm2 / 59.9inch2.

To get a better perspective on the real life size of Cambridge SX-50, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).

Cambridge SX-50 Real Life Body Size Comparison
Cambridge SX-50 Speaker Size Compared to a Compact Disc

Here we place the Cambridge SX-50 virtually next to a standard width amplifier and turntable on a BDI Octave Media Cabinet to get a better idea about the size.

Cambridge SX-50 placed next to an amplifier and turntable
Cambridge SX-50 Speaker next to an amplifier and turntable

Find speakers that fit your shelf or alcove →  ·  Work out where they should sit in the room →

Weight

The Cambridge SX-50 weighs 3.00kg / 6.6lbs per piece. Here is a comparison of how SX-50's weight compares with the average, max and min weights in its class.

Weight
All Bookshelf Speakers
Cambridge SX-50
Min
Average
Median
Weight
Bookshelf Speakers under $300
Cambridge SX-50
Min
Average
Max

How does the Cambridge SX-50 compare to the Cambridge Audio SX-60?

One of the natural alternative to the Cambridge SX-50 is the SX-60 which is located one step higher in Cambridge Audio's Passive Bookshelf selection.

Here is a scaled size comparison of these two speakers to give you an idea how their external dimensions compare:

Cambridge SX-50 vs Cambridge SX-60 Size Comparison - Front View
Comparison image of Cambridge SX-50 and Cambridge SX-60 Size and External Dimensions

Check the Detailed Comparison of Cambridge SX-50 vs SX-60 for more details.

Cabinet type and Materials

Cambridge SX-50 has a Bass Reflex type cabinet and a MDF/Woodgrain vinyl finish. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.

Speaker Feet

Cambridge SX-50 comes with 8 Self-adhesive feet which you can use to secure your loudspeaker on the surface that you are putting on.

It is always recommended to use some kind of feet under all types of speakers. Besides limiting the movement of the speakers, it also compensates for non-flat surfaces and limits the contact surface area of the speaker. Rubber based feet also help isolating the vibrations within certain frequency ranges.

Port Position

Cambridge SX-50 is a rear-firing port speaker so you have to make sure you leave enough space between the back of the speaker and wall or bookshelf so that it has room to breathe. SX-50 comes with 2 Foam port plugs so if you don't have any choice but place the speakers too close to the walls or other surfaces, you can use these plugs in order to avoid boomy or too much bass.

Cambridge SX-50  Port
Cambridge SX-50 Port

Available colors

Cambridge SX-50 is available in Black.

Wall Mounting

SX-50 doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.

Does the Cambridge SX-50 come with a Grille?

SX-50 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

Cambridge SX-50  with Grille
Cambridge SX-50 with Grille

What's in the Box of Cambridge SX-50?

Here are the items that are included inside the box of SX-50:
  • 2 Bookshelf loudspeakers
  • 2 Grilles
  • 8 Self-adhesive feet
  • 2 Foam port inserts
  • Installation Guide

Recommended Accessories

Here is a list of accessories that we think you may need for the Cambridge Audio SX-50.

  • Speaker Cable and Connectors
    • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
    • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
    • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
  • Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.

User's Manual

For more information about how to setup, use and maintain the Cambridge Audio SX-50, use the direct link below to download the official manual document:
Download User Manual for Cambridge SX-50

Official Brochure

Here is a link to download the official brochure for the Cambridge Audio SX-50 speaker:
Official Brochure for Cambridge SX-50

Official Product Page

Official manufacturer's product page for the Cambridge Audio SX-50 speaker can be found below:
Official Product Page for Cambridge SX-50

Warranty

5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

Cambridge Audio SX-50 Alternatives in Passive Bookshelf Speakers
Model Type Sensitivity Impedance Frequency
Cambridge SX-60
Compare
2-way 89 dB 8 ohms 41-22k Hz
Q Acoustics 3020i
Compare
2-way 88 dB 6 ohms 64-30k Hz
KEF Q150
Compare
2-way 86 dB 8 ohms 51-28k Hz
Wharfedale 220
Compare
2-way 86 dB 8 ohms 56-20k Hz
B&W 606
Compare
2-way 88 dB 8 ohms 52-28k Hz
KEF LS50
Compare
2-way 85 dB 8 ohms 79-28k Hz
Klipsch R-51M
Compare
2-way 93 dB 8 ohms 62-21k Hz
ELAC Debut 2.0 B6.2
Compare
2-way 87 dB 6 ohms 44-35k Hz
Frequently Asked Questions about Cambridge Audio SX-50

What amplifier do you need for the Cambridge SX-50?

Cambridge Audio rates the Cambridge SX-50 for 10-100 watts of amplifier power. It is an 8-ohm speaker, the usual nominal load, so almost any amplifier or receiver can drive it.

Is the Cambridge SX-50 easy to drive?

The Cambridge SX-50 has a sensitivity of 90 dB. That is high: it goes loud on modest power, so it suits low-powered amplifiers, including valve/tube designs.

Does the Cambridge SX-50 need a subwoofer?

The Cambridge SX-50 reaches down to 50Hz (full range 50-22k Hz). That covers most music, though a subwoofer still adds the bottom octave for home theatre.

What drivers does the Cambridge SX-50 use?

The Cambridge SX-50 is a 2-way design using a 1" Dome tweeter and a 5.25" Treated paper woofer.

Is the Cambridge SX-50 sealed or ported?

The Cambridge SX-50 uses a Ported enclosure. A ported design uses a tuned vent to get more low-end output from the same driver, but it wants some breathing room behind it.

Can the Cambridge SX-50 be bi-wired or bi-amped?

No. The Cambridge SX-50 has a single pair of terminals, so bi-wiring and bi-amping are not possible. It uses 5-way post terminals.

Can the Cambridge SX-50 be wall mounted?

The Cambridge SX-50 does not include a wall-mount bracket or keyhole, so it is designed to sit on a stand, shelf or the floor.

Does the Cambridge SX-50 come with grilles?

Yes. The Cambridge SX-50 comes with removable grilles.

How big and heavy is the Cambridge SX-50?

The Cambridge SX-50 weighs 3.00kg / 6.6lbs each and measures 8.8 x 6.3 x 9.4inch (HxWxD).

How much does the Cambridge SX-50 cost?

The Cambridge SX-50 has a manufacturer's list price (MSRP) of $199 per pair.


Cambridge SX-50 Detailed Specifications

General
BrandCambridge Audio
Full Model NameCambridge Audio SX-50
Speaker Type2-way Bookshelf
Power Range10-100 watts
Sensitivity90 dB
Impedance8 ohms
Frequency Response50-22k Hz
Release Date2019
DRIVERS
Woofer Size5.25-inch
Woofer CompositionTreated paper
Woofer SurroundRubber
Tweeter Size1-inch
Tweeter TypeDome
Port Positionrear

CONNECTIONS
Connector Type5-way post
Biamp InputsNo
Port Positionrear
PHYSICAL SPECS
Height225.0mm ( 8.8-inch)
Width161.0mm ( 6.3-inch)
Depth240.0mm ( 9.4-inch)
Height225.0mm ( 8.8-inch)
Weight3 kg (6.6 lbs)
EnclosureBass Reflex
FinishMDF/Woodgrain vinyl
Available ColorsBlack
Mounting BracketNo
Recommended Stand Height28-31
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty5 Years
Labor Warranty5 Years
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