Using your A70 amplifier

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Front panel controls

This section describes how to operate your amplifier.

If you are installing the amplifier yourself, you should first read the ‘Installation’ section on page 4.

POWER (and power indicator light) bk

Switches the unit on and off. (You can also switch the amplifier into standby mode with the remote control handset.)

The light indicates the status of the amplifier. A red light means the amplifier is in standby mode (press the Power/Standby button on the remote control, or the POWER button on the front panel, to switch between standby and powered-up modes).

When you switch your amplifier on, the light glows amber for a few seconds, during which time the speakers are disconnected. The light changes to green when the amplifier is ready for use.

The light may flash if a fault has occurred – the fault type is shown on the display. You should unplug the amplifier and leave it for a few minutes before reconnecting. If the fault cannot be cleared, unplug your amplifier and contact your Arcam dealer.

Source selectors 9

These buttons select the source connected to the corresponding input.The input currently selected is indicated by text on the display.

AV 4

This input is similar to the other line level inputs on the amplifier and may be used with a VCR or a second recording unit (e.g. cassette deck).

Control knob, SELECT and ENTER 876

The control knob has two functions:

<as a volume control, to adjust the output of loudspeakers and headphones connected to the amplifier, and of the pre-amp output (PRE OUT).

<when used in conjunction with the SELECT and ENTER buttons, to customise amplifier settings (see page 8).

Volume control settings

It is important to realise that the position of the Control knob is not an accurate indication of the power delivered to your loudspeakers. The amplifier often delivers its full power before the volume control reaches its maximum position, particularly when listening to heavily recorded compact discs. However the amplifier also has to be capable of giving full power output from much lower level sources, such as tuners and cassette decks. Using these sources, the volume control setting may be much higher before distortion (audible overload) sets in. To compensate for this, the input levels of each source may be individually adjusted to avoid accidental overload (see page 8).

SP1 and SP2 2

These buttons allow you to select and deselect the main (SP1) and secondary (SP2) set of speakers attached to your amplifier.

The light above each button glows if the corresponding speakers are currently selected. If both lights are out the amplifier will appear not to work, as all speakers are switched off!

PHONES 1

This socket accepts headphones with an impedance rating between 8Ω and 2kΩ, fitted with a 1/4-inch stereo jack plug. If you wish to listen on headphones only, use the SP1 and SP2 buttons (if necessary) to mute the speakers. The headphone socket is always active.

Remote control receiver 3

The remote control’s infrared receiver is positioned between the SP1/SP2 and PROCESSOR indicator lights on the left-hand side of the front panel window. Ensure the receiver is in a clear line of sight from the remote control to allow signals to be received.

A70

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Arcam manual Using your A70 amplifier, Front panel controls
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A70 specifications

The Arcam A70 is a high-performance integrated amplifier designed to deliver exceptional sound quality and robust features for audiophiles and music enthusiasts. Combining sophisticated engineering with a sleek aesthetic, the A70 sets a standard for audio fidelity in its class.

One of the standout features of the Arcam A70 is its Class G amplification technology. This innovative approach ensures high efficiency, allowing the amplifier to produce a powerful output while minimizing heat generation. The Class G design effectively uses multiple power supplies, seamlessly switching between them to optimize performance for various sound levels. This results in a cleaner, more dynamic sound, allowing users to enjoy their music without distortion.

Another notable characteristic of the A70 is its extensive connectivity options. The amplifier includes multiple analog inputs, ideal for connecting various sources such as CD players, turntables, and streaming devices. In addition, the A70 features digital inputs, including optical and coaxial connections, which allow for the integration of digital audio sources with ease. This versatility ensures that users can build a comprehensive audio system tailored to their preferences.

The Arcam A70 also supports advanced technology such as Bluetooth connectivity. This allows users to stream music directly from their smartphones or tablets, providing added convenience without sacrificing sound quality. With a built-in high-quality DAC, the amplifier enhances digital audio from any compatible device, ensuring that users experience a rich and detailed listening experience.

Overall, the design of the Arcam A70 is both elegant and functional. Its solid build quality and intuitive layout make it easy to navigate through settings and adjustments. The front panel features a clear display that provides essential information, while the overall design complements modern audio setups.

The A70 is also recognized for its low noise floor, which contributes to a more immersive soundstage. This attention to detail in engineering ensures that subtle nuances in music are accurately reproduced, making it an excellent choice for critical listening.

In conclusion, the Arcam A70 Integrated Amplifier combines advanced Class G amplification, extensive connectivity options, and modern streaming capabilities, making it a top contender for anyone looking to enhance their audio experience. With its stylish design and commitment to sound quality, the A70 is a valuable addition to any high-fidelity audio system.
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