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  1. Home
  2. Cambridge Audio Speakers
  3. Passive Center Channel Speakers
  4. Cambridge Audio SX-70
Cambridge Audio SX-70 Review
Cambridge Audio SX-70 - Front View

Compare To

Main Features

  • 1" dome Tweeter
  • 2 x 4" treated-paper Woofer
  • 65-22k Hz Frequency Response
  • 85 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: 10-100 watts
  • 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
MSRP: $189 (list price)
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Cambridge Audio SX-70 Review
Cambridge Audio SX-70 Cambridge Audio SX-7...
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Made by Cambridge Audio · United Kingdom · since 1968 · sold through dealers

Cambridge Audio SX-70 is a 2-way Acoustic Suspension Center Channel speaker by Cambridge Audio. It was released in 2019. 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$.

Frequency Response of the Cambridge Audio SX-70 Speaker

Cambridge Audio SX-70 has a Frequency response range of 65-22k Hz 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.

Here we have a comparison of how SX-70's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Center Channel Speakers
Cambridge Audio SX-70
Min
Average
Thinking about a subwoofer for the Cambridge Audio SX-70?
  • Work out the crossover setting - it follows from this speaker's 65 Hz low end
  • Powered subwoofers under $300 - a similar price range to these speakers
  • Every powered subwoofer we cover, whatever the budget

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
Min
Average

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. Work out how loud the Cambridge Audio SX-70 plays in your room →

What amplifier does the Cambridge Audio SX-70 need?

At normal listening levels in a medium room, about 24–100 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-70 features 5-Way post type connectors.

Work out what gauge speaker cable this run needs →

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.

Find speakers that fit your shelf or alcove →

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 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.

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-50
Compare
2-way 90 dB 8 ohms 50-22k Hz
Cambridge SX-60
Compare
2-way 89 dB 8 ohms 41-22k Hz
DALI Spektor Vokal
Compare
2-way 87 dB 6 ohms 66-26k Hz
Monitor Audio Bronze C150
Compare
2-way 88 dB 8 ohms 66-30k Hz
Focal Aria 926
Compare
3-way 91.5 dB 8 ohms 45-28k Hz
Polk ES30
Compare
2-way 89 dB 8 ohms 55-40k Hz
Monitor Audio Silver 200 7G
Compare
2-way 87.5 dB 8 ohms 34-35k Hz
Frequently Asked Questions about Cambridge Audio SX-70

What amplifier do you need for the Cambridge Audio SX-70?

Cambridge Audio rates the Cambridge Audio SX-70 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 Audio SX-70 easy to drive?

The Cambridge Audio SX-70 has a sensitivity of 85 dB. That is on the low side, so it needs more amplifier power than average to reach the same volume.

Does the Cambridge Audio SX-70 need a subwoofer?

The Cambridge Audio SX-70 reaches down to 65Hz (full range 65-22k Hz). That leaves the lowest octaves out, so a subwoofer will make a clear difference for films and bass-heavy music.

What drivers does the Cambridge Audio SX-70 use?

The Cambridge Audio SX-70 is a 2-way design using a 1" dome tweeter and 2 x 4" treated-paper woofers.

Is the Cambridge Audio SX-70 sealed or ported?

The Cambridge Audio SX-70 uses a Sealed enclosure. A sealed box trades some output for tighter, more even bass and is the more forgiving choice close to a wall.

Can the Cambridge Audio SX-70 be wall mounted?

The Cambridge Audio SX-70 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 Audio SX-70 come with grilles?

Yes. The Cambridge Audio SX-70 comes with removable grilles.

How big and heavy is the Cambridge Audio SX-70?

The Cambridge Audio SX-70 weighs 4.00kg / 8.8lbs each and measures 5-7/16 x 14-1/4 x 9-3/4inch (HxWxD).

How much does the Cambridge Audio SX-70 cost?

The Cambridge Audio SX-70 has a manufacturer's list price (MSRP) of $189 per pair.


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
Release Date2019
DRIVERS
Woofer Size4-inch
Woofer Compositiontreated-paper
Tweeter Size1-inch
Tweeter Typedome

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 kg (8.8 lbs)
EnclosureAcoustic Suspension
Available ColorsBlack
Mounting BracketNo
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty5 Years
Labor Warranty5 Years
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