Connections and Operation

All input, output and power connections should be made with the mains power switched OFF.

If in doubt about bi-amplification, please contact your dealer for advice.

INPUT CONNECTIONS

The A5 CR Power amplifier can be used with any preamplifier or line level source which has a volume control. We highly recommend the matching A5 CR Preamplifier available from Musical Fidelity.

Two stereo pairs of RCA audio input sockets marked “A” and “B” on the rear panel allow a choice between either of these input sources.

Simultaneous mixed A and B operation is not possible.

Using good quality co-axial audio leads, connect the left and right outputs from your pre- amp or other line level source to either or both A and B inputs.

Whichever input is chosen, a fixed “line level” audio output from the selected source is available from the adjacent OUTPUT RCA sockets for onward connection to another amplifier. This is to allow for “bi- amplification” (see below).

BI-AMPLIFICATION

The A5’s RCA OUTPUT sockets allow “bi- amplification” of a speaker system using suitable external amplifiers and crossover networks. This enables the speaker drive units to be powered separately, giving noticeable improvement in clarity, imaging and bass weight.

In this arrangement, typically one A5 CR Power amplifier is used to drive the “tweeter” (high frequencies), and another to drive the “woofer” (low frequencies) of each loudspeaker enclosure. Thus, two A5s would be needed for a stereo pair.

LOUDSPEAKER CONNECTIONS

Connect your loudspeakers to either of the two pairs of loudspeaker terminals situated on the back panel marked as LEFT and RIGHT SPEAKER OUTPUT. The wiring must be “in phase”, namely, the + and - terminals must be connected to the left and right speakers the same way round.

Note: - the combined load impedance must not be less than 4 ohms.

BEFORE SWITCHING ON. . . . .

Plug the accessory IEC mains lead into the rear panel socket, then the other end into a convenient wall outlet.

Turn the volume control on your pre-amplifier to minimum, and switch on its power.

OPERATION

Press the POWER switch button on the left- hand end of the front panel on the A5 CR Power.

The blue POWER LED will light to confirm that the unit is ready for use.

However, for a few seconds no sound will be heard from your speakers, and the red mute indicator LED near the button will be lit, confirming initial mute action.

Select the required audio input source A or B by pressing the selector button on the right- hand end of the front panel. Now increase the volume control on your pre-amplifier to obtain the preferred sound level.

(continued . . . )

Issue 1 : November 2004

A5 CR Power Amplifier

Instructions for use

Page 5 of 7

A5 CR specifications

The Musical Fidelity A5 CR is a high-performance integrated amplifier that has garnered attention among audiophiles and music enthusiasts alike for its sophisticated design and rich sound quality. Standing as a testament to Musical Fidelity's commitment to audio excellence, the A5 CR combines advanced technological features with user-friendly functionality, resulting in an unparalleled listening experience.

At the heart of the A5 CR lies a powerful Class AB amplifier that delivers an impressive output of 90 watts per channel into 8 ohms. This ensures a robust performance across a wide range of speakers, allowing for dynamic sound reproduction regardless of the musical genre. Whether you're listening to delicate classical pieces or the energetic beats of modern rock, the A5 CR holds the ability to produce clear, articulate, and vibrant sound.

One of the most significant features of the A5 CR is its dual mono design. This architecture helps to minimize crosstalk between channels and provides a wider soundstage, thus enhancing the stereo imaging. Users can expect a rich, immersive experience where instruments are distinctly positioned in the audio space, allowing listeners to grasp the nuances of the recording.

The A5 CR also integrates high-quality components that contribute to its superior sound reproduction. The amplifier utilizes a toroidal transformer, which provides excellent efficiency and low electromagnetic interference. This results in a cleaner power supply, ultimately leading to better sound clarity and dynamic range. Additionally, the amplifier is equipped with high-grade capacitors and precision resistors that contribute to its overall performance.

For added convenience, the A5 CR boasts a comprehensive set of inputs, including multiple line-level inputs, a moving magnet phono stage for vinyl enthusiasts, and a dedicated headphone output for private listening. Its dual outputs allow users to connect multiple pairs of speakers, making it a versatile choice for various audio setups.

In terms of aesthetics, the Musical Fidelity A5 CR features a sleek, minimalist design with a polished aluminum front panel and an intuitive control layout. Its understated elegance allows it to seamlessly blend with any home audio system while still being a statement piece.

In summary, the Musical Fidelity A5 CR integrated amplifier offers a perfect blend of cutting-edge technology, exceptional sound performance, and user-friendly features. Its robust power output, high-quality components, and elegant design make it an ideal choice for those seeking an outstanding audio experience. Whether you're a casual listener or a dedicated audiophile, the A5 CR promises to deliver captivating sound that brings your music to life.