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Cambridge Audio SX-70 vs Cambridge SX-50 Comparison

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Cambridge Audio SX-70

Passive Center Channel | 65-22k Hz

Cambridge Audio SX-70
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Cambridge SX-50

Passive Bookshelf | 50-22k Hz

Cambridge Audio SX-50
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Cambridge Audio SX-70 Cambridge Audio SX-7...
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Cambridge SX-50 Cambridge SX-50
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Cambridge Audio SX-7...
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Cambridge SX-50
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Cambridge Audio SX-70 vs Cambridge SX-50 Speaker Comparison

In this review, we will be comparing two different type of speakers by Cambridge Audio. Cambridge Audio SX-70 is a Center Channel speaker whereas the SX-50 is a Bookshelf speaker.

Let's have a brief look at the main features of Cambridge Audio SX-70 and Cambridge SX-50 first before getting into our more detailed comparison.

Cambridge Audio SX-70 Key Specs

  • 2-way Design
  • 1" dome Tweeter
  • 2 x 4" treated-paper Woofer
  • 65-22k Hz Frequency Response
  • 85 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:10-100watts
  • Weight:4.00kg
  • Dimensions (H x W x D): 139.0" x 14-1/4" x 9-3/4"( 139.0 x 362.0 x 248.0mm )

Cambridge SX-50 Key Specs

  • 2-way Design
  • 1" Dome Tweeter
  • 5.25" Treated paper Woofer
  • 50-22k Hz Frequency Response
  • 90 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:10-100watts
  • Weight:3.00kg
  • Dimensions (H x W x D): 225.0" x 6.3" x 9.4"( 225.0 x 161.0 x 240.0mm )

In the following sections, we will get into more detail in order to better understand how the Cambridge Audio SX-70 and Cambridge SX-50 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

Both SX-70 and SX-50 are 2-way speakers.

Driver Cambridge Audio SX-70 Cambridge SX-50
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 2 x 4-inch 1 x 5.25-inch

SX-70 features a 1" Silk dome Tweeter and 2 x 4" treated-paper Woofer . On the other hand, the SX-50 features a 1" Silk Dome Tweeter and 1 x 5.25" Treated paper Woofer .

Frequency Response

SX-70 has a frequency range of 65-22k Hz whereas SX-50 has a frequency range of 50-22k Hz. With a minimum frequency of 50Hz, the SX-50 can go significantly deeper on the low side and provide stronger bass compared to the SX-70's min frequency of 65Hz.

Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Center Channel class in our database.

Low Frequency

Center Channel Speakers

SX-70
SX-50
Min
Average
Max
High Frequency

Center Channel Speakers

Cambridge Audio SX-70
Cambridge SX-50
Min
Average
Max

None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

SX-70 and SX-50 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. SX-70 sensitivity is rated at 85 dB and the SX-50's is at 90 dB. This 5 dB difference makes the Cambridge SX-50 a more sensitive speaker compared to Cambridge Audio SX-70, hence will play louder with the same amount of watts.

Sensitivity

Center Channel Speakers

SX-70
SX-50
Min
Average
Max

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.

SX-70 and SX-50 has the same power range of 10-100 watts.

Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters such as Impedance, sensitivity and system efficiencies.

Input Type and Bi-Amping / Bi-Wiring

SX-70 features 5-way post type posts and SX-50 has a 5-way post type posts. None of these speakers feature bi-amping/bi-wiring.

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

Cambridge SX-50  Port
Cambridge SX-50 Port

Physical Specs

Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Cambridge Audio SX-70's and Cambridge SX-50's external dimensions. Cambridge Audio SX-70 has external dimensions of 139.0 x 362.0 x 248.0mm ( 5-7/16 x 14-1/4 x 9-3/4inch) whereas Cambridge SX-50 has external dimensions of 225.0 x 161.0 x 240.0mm ( 8.8 x 6.3 x 9.4inch) .

Cambridge SX-50 is 201mm narrower and 8mm less deeper than Cambridge Audio SX-70 but it is also 86mm taller.

Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base surface area of the Cambridge Audio SX-70 is approximately 897.8cm2 / 139.2inch2 and base area of the Cambridge SX-50 is approximately 386.4cm2 / 59.9inch2. The SX-70 requires 132% more surface area than the SX-50 which gives it a small disadvantage on placement in tight spaces.

What's in the Box of Cambridge Audio SX-70?

Here are the items that are included inside the box of SX-70:
  • Center-channel loudspeaker
  • Grille
  • 4 Self-adhesive rubber feet
  • Installation Guide
  • What's in the Box of Cambridge SX-50?

    Here are the items that come with the SX-50:
  • 2 Bookshelf loudspeakers
  • 2 Grilles
  • 8 Self-adhesive feet
  • 2 Foam port inserts
  • Installation Guide

  • Reasons to choose Cambridge Audio SX-70 over Cambridge Audio SX-50
    Number of Woofers 2 vs 1 More woofers
    Height 139mm vs 225mm Easier to fit in smaller spaces
    Price per pair* 189USD vs 199USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Cambridge Audio SX-50 over Cambridge Audio SX-70

    Sensitivity 90 dB vs 85 dB Play louder with same amount of amplification power
    Woofer Size 5.25 inches vs 4 inches Larger woofer
    Low Frequency Response 50 Hz vs 65 Hz Generates deeper bass
    Base Surface Area 386cm2 vs 897cm2 Takes less floor space
    Cambridge Audio SX-70 vs Cambridge SX-50 Specs Table
    Detailed comparison of specifications
    General Cambridge Audio SX-70 Cambridge Audio SX-50
    Brand Cambridge Audio Cambridge Audio
    Speaker Type Center channel speaker (Matte Black) Bookshelf speakers
    Power Range 10-100 watts 10-100 watts
    Sensitivity 85 dB 90 dB
    Impedance 8 ohms 8 ohms
    Frequency Response 65-22k Hz 50-22k Hz
    Drivers
    Woofer Quantity 2 1
    Woofer Size 4" 5.25"
    Woofer Composition treated-paper Treated paper
    Woofer Surround Material n/a Rubber
    Tweeter Size 1" 1"
    Tweeter Type dome Dome
    Aimable Tweeter No No
    Midrange Driver N/A" No
    Firing Direction n/a rear
    Physical Specs
    Height 139.0mm (5.5") 225.0mm (8.9")
    Width 362.0mm (14.3") 161.0mm (6.3")
    Depth 248.0mm (9.8") 240.0mm (9.4")
    Weight 4.00kg (8.8lbs) 3.00kg (6.6lbs)
    Enclosure Acoustic Suspension Bass Reflex
    Finish n/a MDF/Woodgrain vinyl
    Available Colors Black Black
    Mounting Bracket No No
    Recommended Stand Height n/a 28-31"
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs n/a No
    Other
    Parts Warranty 5 Years 5 Years
    Labor Warranty 5 Years 5 Years

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