Service information

Sound cuts out unexpectedly

Before returning an amplifier for repair, please check the following:

Heatsink protection

If the temperature of the internal heatsink rises above a safe level, a thermal cutout inside the amplifier operates, the power indicator on the front panel flashes and the protection system temporarily removes power to the speakers. The system resets after the heatsink has cooled down. Note that because of the high output voltage from a CD player, it is possible to drive the A70 at full power even though the volume is not set at maximum.

Transformer protection

The transformer is separately protected against thermal overload damage which may occur in exceptional circumstances. If the unit shuts down in this way, there is no indicator warning on the front panel: we recommend you disconnect the power supply and wait 30 minutes for the amplifier to completely cool. Power on in the normal way and the A70 will work normally.

Amplifier does not switch back on

The A70 and P90 amplifiers have a protection mechanism which is activated if you switch the unit on immediately after turning it off. If this mechanism activates, wait 30 seconds before switching back on again.

Technical specifications

English

Continuous power output, per channel

Both channels, 8Ω, 20Hz–20kHz

50W

Distortion, 8Ω, 80% power, 1kHz

0.005%

Inputs

 

Phono cartridge input sensitivity, MM

2.7mV

Line and tape inputs:

 

Nominal sensitivity

250mV

Input impedance

22kΩ

Signal/noise ratio (CCIR)

98dB

Preamplifier outputs

 

Nominal output level

545mV

Output impedance

<50Ω

General

 

Power consumption (maximum)

450VA

Dimensions W x D x H (including feet)

430 x 330 x 85mm

Weight (net)

7.5kg

Weight (packed)

9.5kg

Supplied accessories

mains lead

 

CR-389 remote control

 

2 x AAA batteries

E&OE

 

Continual improvement policy

Arcam has a policy of continual improvement for its products. This means that designs and specifications are subject to change without notice.

NOTE: All specification values are typical unless otherwise stated.

A70

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Arcam A70 manual Service information, Technical specifications, Sound cuts out unexpectedly

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.