Cambridge Audio SX-70 Centre Speaker User Manual
- June 11, 2024
- Cambridge Audio
Table of Contents
Cambridge Audio SX-70 Centre Speaker
SX-70 Centre Speaker
The SX-70 Centre Speaker is a high-quality speaker designed to be used as the center channel in a home theater setup. It features a 1-inch silk dome tweeter and two 4-inch woofers for clear, balanced sound. The speaker has a sensitivity of 85dB, a frequency response range of 65Hz to 20kHz, and an impedance of 8 Ohms.
What’s included with the SX-70
The SX-70 comes with the following:
- 1 x SX-70 Centre Speaker
- Installation guide
- 4 x rubber pads
Front panel
The front panel of the SX-70 features a 1-inch silk dome tweeter and two
4-inch woofers.
- 1″ (25mm) Silk Dome Tweeter.
- 2 x 4″ (100mm) Woofer.
Rear panel
The rear panel of the SX-70 has +/- speaker connection terminals.
Installation instructions
- Using high quality speaker cable, connect the SX-70 centre speaker to the speaker terminals on your amplifier. Ensure that you pay close attention to match the polarity of each connection.
- For the best results, we recommend positioning the SX-70 centre speaker above or below the screen, angled towards the listener if possible.
- Ideally, the speakers and listening position should be placed equal distances apart. However, we encourage you to experiment until you find a placement that suits your space and requirements.
Technical specifications
- Sensitivity (SPL): 85dB
- Frequency Response: 65Hz – 20kHz
- Impedance: 8 Ohms
- Drivers : 2 x 4 (100mm) woofers, 1 x 1 (25mm) silk dome tweeter
- Recommended Amplifier Power : 10 – 100 Watts
- Porting : 1 Rear Speaker
- Dimensions (H x W x D): 138 x 360 x 246mm
- Weight : 4.0kg (8 lbs)
Frequently asked questions
Here are some frequently asked questions about the SX-70:
- What is meant by speaker sensitivity? Speaker sensitivity refers to the amount of sound a speaker produces from the power it receives. A higher sensitivity rating means that the speaker will produce more sound from the same amount of power.
- What is a crossover? A crossover is a circuit that separates audio frequencies and sends them to the appropriate speaker driver. This ensures that each driver only plays the frequencies it is designed to handle, resulting in clearer sound. Most speakers will have multiple drivers. A driver is sometimes called a transducer, which is a device that turns one type of energy into another – in this case, electrical energy to sound energy. In a loudspeaker, it is often the case that we might want multiple drivers – one to handle low-end, one to handle the mid-range, and one to handle the treble. This latter driver is often called a tweeter. To get the benefit of this arrangement, we need to split the signal into different frequency components. The circuit that does this is called a crossover.
- What is impedance? Impedance is the amount of electrical resistance a speaker presents to an amplifier. It is measured in Ohms and is important to consider when setting up an audio system as it determines the load placed on an amplifier by the speakers. You will often see impedance mentioned when researching speakers, and amplifiers. Impedance is basically resistance measured at a given frequency, given as a value in Ohms (Ω), and is incredibly important to consider when setting up an audio system as it determines the ‘load’ placed on an amplifier by the speakers. For example, let’s say we have an amplifier that is rated to deliver 100W into an 8Ω speaker load. If we were to then use speakers with an impedance of 4Ω with the same amplifier, the amp would then need to supply 200W as a halving of the impedance results in a doubling of the required power due to the reduction of the load on the amplifier. In a situation such as this, if the amp can’t supply the required power for a lower impedance, then it can result in overheating, and damage to the amplifier and speakers. For this reason, it is important to pay attention to amplifier specifications, and suggested impedance ratings.
Troubleshooting
If you experience any issues with your SX-70 Centre Speaker, please refer to the troubleshooting section of the user manual for assistance. Last updated: Januar 19, 2023 01:58. Revision #8429
No sound through one or both channels.
- Check that the amplifier is turned on.
- Ensure that the correct input source is selected on the amplifier.
- Confirm that all connections between the amplifier and loudspeakers are secure.
- Check that the connections between the source equipment and amplifier are secure.
- Check the polarity of the loudspeaker connections.
- Check that the volume control is set correctly on the amplifier.
There is distorted or inconsistent sound.
- Confirm that all connections between the amplifier and loudspeakers are secure.
- Check the polarity of the loudspeaker connections.
- Check that the connections between the source equipment and amplifier are secure.
Introduction
Last updated: Januar 19, 2023 01:57. Revision #8422 Thank you for purchasing this Cambridge Audio SX-70 centre speaker. We hope that you enjoy many years of listening pleasure from it. Your loudspeakers can only be as good as the system it is connected to. Please do not compromise on your amplifier or cabling. Naturally we particularly recommend amplification from the Cambridge Audio range, which has been designed to the same exacting standards as our loudspeakers. Your dealer can also supply excellent quality speaker cable to ensure your system realises its full potential. Thank you for taking the time to read this manual; we do recommend you keep it for future reference. © Copyright Cambridge Audio Ltd . For upcoming news on future products, software updates and exclusive offers, make sure you register your product at http://www.cambridgeaudio.com/register
References
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