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Cambridge Audio SX-70 Review
Cambridge Audio SX-70

Main Features

  • 1" dome Tweeter
  • 2 x 4" treated-paper Woofer
  • 65-22k Hz Frequency Response
  • 85 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: 10-100watts
  • Weight:8.80 lbs / 4.00 kg
  • Dimensions(HxWxD): 5-7/16"x14-1/4"x9-3/4" / 139.0 x 362.0 x 248.0mm
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Cambridge Audio SX-70 Review
Cambridge Audio SX-70 Cambridge Audio SX-7...
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Cambridge Audio SX-70 is a 2-way Acoustic Suspension Center Channel speaker by Cambridge Audio. Center channel speaker is an important component of a home theater system set-up as it delivers the listener significant part of the on-screen dialogue from your television. It features a 1" dome Tweeter and 2 x 4" treated-paper Woofer. The speaker has a frequency range of 65-22k Hz and a sensitivity of 85 dB. Cambridge Audio SX-70 has an MSRP of 189$.


**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.

Frequency Response of the Cambridge Audio SX-70 Speaker

Cambridge Audio SX-70 has a Frequency response range of 65-22k Hz at ±3dB and Power Range of 10-100 watts. With a minimum frequency of 65 Hz, it is hard to expect a strong bass response from SX-70 so depending on your use case, using a subwoofer will significantly help to widen the response range.

To focus on the subwoofers that are in a similar price range with Cambridge Audio SX-70, check out the Powered Subwoofers under $300. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how SX-70's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Center Channel Speakers
Cambridge Audio SX-70
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Average
Max
High Frequency
Center Channel Speakers
Cambridge Audio SX-70
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Max

Impedance and Sensitivity

Cambridge Audio SX-70's nominal impedance level is 8 ohms and has a sensitivity of 85 dB.

Sensitivity
Center Channel Speakers
Cambridge Audio SX-70
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Average
Max

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Cambridge Audio SX-70 is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

With a sensitivity level of only 85 dB, Cambridge Audio SX-70 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps.

Check the amplifiers that are in a similar price range to the Cambridge Audio SX-70:

  • All Integrated Amplifiers

Input Type

SX-70 features 5-Way post type connectors. Bi-amping and Bi-wiring are not possible.

Cambridge Audio SX-70 External Dimensions and Weight

Cambridge Audio SX-70 has external dimensions of (Height x Width x Depth) 5-7/16 x 14-1/4 x 9-3/4inch (139.0 x 362.0 x 248.0mm ).

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 Audio SX-70 is approximately 897.8cm2 / 139.2inch2.

Weight

The Cambridge Audio SX-70 weighs 4.00kg / 8.8lbs per piece. Here is a comparison of how SX-70's weight compares with the average, max and min weights in its class.

Weight
All Center Channel Speakers
Cambridge Audio SX-70
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Average
Max
Weight
Center Channel Speakers under $300
Cambridge Audio SX-70
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Average
Max

Cabinet type and Materials

Cambridge Audio SX-70 has a Acoustic Suspension type cabinet. Acoustic Suspension loudspeakers aka Sealed speakers have no openings such as ports or slots.. They can be designed smaller, the bass is more accurate and tighter compared to ported designs but doesn't go as low on the lower end in general.

Available colors

Cambridge Audio SX-70 is available in Black.

Does the Cambridge Audio SX-70 come with a Grille?

SX-70 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.

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
  • Recommended Accessories

    Here is a list of accessories that we think you may need for the Cambridge Audio SX-70.

    • Vibration Isolators: IsoAcoustics isolators 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.

    Warranty

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

    Cambridge Audio SX-70 Alternatives in Passive Center Channel Speakers
    Model Type Watts RMS Bluetooth Frequency
    Polk XT30
    Compare
    2-way 89 dB 8 ohms 55-40k Hz
    Cambridge SX-60
    Compare
    2-way 89 dB 8 ohms 41-22k Hz
    Cambridge SX-50
    Compare
    2-way 90 dB 8 ohms 50-22k Hz
    Focal Aria 926
    Compare
    3-way 91.5 dB 8 ohms 45-28k Hz
    Monitor Audio Bronze C150
    Compare
    2-way 88 dB 8 ohms 66-30k Hz
    DALI Spektor Vokal
    Compare
    2-way 87 dB 6 ohms 66-26k Hz
    Monitor Audio Silver 200 7G
    Compare
    2-way 87.5 dB 8 ohms 34-35k Hz
    ELAC Debut 2.0 B6.2
    Compare
    2-way 87 dB 6 ohms 44-35k Hz
    Frequently Asked Questions about Cambridge Audio SX-70
    What is the External Dimensions of Cambridge Audio SX-70
    What is the Speaker Sensitivity of Cambridge Audio SX-70
    is the Cambridge Audio SX-70 an easy to drive speaker?

    Cambridge Audio SX-70 Detailed Specifications

    General
    BrandCambridge Audio
    Full Model NameCambridge Audio SX-70
    Speaker Type2-way Center Channel
    Power Range10-100 watts
    Sensitivity85 dB
    Impedance8 ohms
    Frequency Response65-22k Hz
    DRIVERS
    Woofer Size4-inch
    Woofer Compositiontreated-paper
    Tweeter Size1-inch
    Tweeter Typedome
    Midrange SizeN/A-inch

    CONNECTIONS
    Connector Type5-Way post
    PHYSICAL SPECS
    Height139.0mm ( 5-7/16-inch)
    Width362.0mm ( 14-1/4-inch)
    Depth248.0mm ( 9-3/4-inch)
    Height139.0mm ( 5-7/16-inch)
    Weight4.00kg ( 8.80 lbs)
    EnclosureAcoustic Suspension
    Available ColorsBlack
    Mounting BracketNo
    GrilleYes
    Moisture ResistanceNo
    OTHER
    Handheld RemoteNo
    Parts Warranty5 Years
    Labor Warranty5 Years
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