Arcam Optimize Your Sound System with Effective Bi-Wiring and Bi-Amping Techniques

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Bi-wiring and bi-amping loudspeakers

Before you start

Bi-amping your system

WARNING: Do not make any connections to your amplifier while it is switched on or connected to the mains supply.

Before switching on please check all connections thoroughly, making sure bare wires or cables are not touching the amplifier in the wrong places (which could cause short circuits) and you have connected positive

(+) to positive and negative (–) to negative.

Always ensure that the volume control on your amplifier is set to minimum before starting these procedures.

Bi-wiring your loudspeakers

Bi-wiring improves the sound of your system because it divides the high and low frequency signal currents into separate speaker cables. This avoids signal distortions arising from the high and low frequency currents interacting with one another within a single cable, as in conventionally wired systems.

You will need:

Speakers – with four input terminals each: these will be marked HF (High Frequency) and LF (Low Frequency).

Loudspeaker cables – two pairs of cables per loudspeaker (which may be joined at the amplifier end if your amplifier has only one pair of output terminals per channel), or a suitably terminated cable set.

How to bi-wire loudspeakers

1.Remove the terminal links on the rear of your loudspeakers

WARNING: This step is essential or damage to your amplifier may result which is not covered under warranty.

2.Connect the cables as shown in the diagram below, ensuring correct polarity at all times.

 

 

Arcam A90 amplifier

 

 

 

+

 

+

 

 

R

 

 

L

+

HF

Right

+

HF

Left

+

LF

speaker

+

LF

speaker

The performance of your system can be further enhanced over that achieved with bi-wiring, by extending the principle one stage further to include separate amplification for the low and high frequency drive units in each loudspeaker enclosure.

Connect the integrated amplifier to the high frequency (HF) terminals and connect the power amplifier to the low frequency (LF) terminals.

You will need:

Speakers – with four input terminals each (as with bi-wiring): these will be marked HF (High Frequency) and LF (Low Frequency).

Two amplifiers – one of these would be the A90 and the other an Arcam power amplifier (e.g. P90).

Loudspeaker cables – two pairs of cables per loudspeaker or a suitably terminated cable set.

Interconnect cables – one pair of high quality interconnect cables.

How to set up a bi-amped system

1.Remove the terminal links on the rear of your loudspeakers.

WARNING: This step is essential or damage to your amplifier may result which is not covered under warranty.

2.Connect the cables as shown in the diagram below, ensuring correct polarity at all times.

3.Use the interconnect cables to connect the PRE OUT sockets of the A90 to the corresponding AUDIO IN sockets of the power amplifier.

+

Arcam A90 amplifier

 

+

 

 

R

 

L

 

+

+

 

Right

HF

 

HF

Left

speaker

LF

LF

speaker

 

 

+

+

+

+

 

 

R

Arcam P90 power amplifier

L

 

 

 

 

 

Bi-wiring using one set of connections on amplifier

Recommended bi-amping configuration

A90/P90

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Contents HANDBOOK/MANUEL/HANDBUCH/HANDLEIDING Safety guidelines Important safety instructionsSafety compliance Using this handbook SafetyContents Installation A90 integrated amplifier Connecting to loudspeakersConnecting to a power supply Positioning the unitConnecting to other equipment Standby powerPre/power amplifier connections Using your A90 integrated amplifier Front panel controlsVCR ToneRecording Record bkTape-to-tape copying dubbing TapeSetting up your A90 integrated amplifier Introduction Adjusting listening settingsCustomising amplifier settings Using the remote control CR-389 Remote ControlTuner EnterInstallation P90 power amplifer Connecting to power, loudspeakers and other equipmentRemote switching Three channel optionUsing your P90 power amplifier Bi-wiring and bi-amping loudspeakers Bi-wiring your loudspeakersBefore you start Power commands Volume control commandsDisplay control commands Remote-control codesService information Technical specificationsGuarantee On-line registration

A90, P90/3, P90 specifications

The Arcam P90, P90/3, and A90 are prominent models in the Arcam amplifier lineup, renowned for their commitment to delivering high-quality audio performance. Each model showcases advanced technologies aimed at providing an immersive listening experience, catering to audiophiles and casual listeners alike.

The Arcam P90 is a powerful stereo power amplifier that boasts impressive output capabilities. With a dynamic range and high current output, the P90 is designed to drive a wide variety of speakers with ease. The design emphasizes high-performance components and a robust power supply, ensuring that listeners enjoy a clean and detailed sound across the audio spectrum. The P90 also features a proprietary feedback topology, which contributes to its high fidelity and low distortion levels, making it a favorite among professionals and music enthusiasts.

The P90/3 is an enhanced version of the P90, integrating further refinements in performance and efficiency. This model features improvements in power handling and heat dissipation, allowing for sustained performance even during high-demand listening sessions. It maintains the original’s strengths while adding modern connectivity options to accommodate current audio trends. The P90/3 retains the elegant design language synonymous with Arcam products, featuring a sturdy chassis that minimizes vibrations and interference, thereby enhancing sound quality.

The A90, part of the same family, is a highly regarded integrated amplifier that incorporates both rugged amplification and versatile inputs. With a focus on user-friendly operation, the A90 allows direct connection with various sources, including digital and analog devices. It features advanced digital-to-analog conversion technology, ensuring pristine audio playback regardless of source quality. The A90 also emphasizes high current delivery, thus enabling it to produce a rich, dynamic soundstage that captivates listeners.

All three models share Arcam's dedication to high-quality engineering, with a focus on reducing distortions and enhancing audio clarity. Their compatibility with a wide array of audio formats ensures that they remain relevant in an ever-evolving digital landscape. With features that prioritize performance, durability, and aesthetic appeal, the Arcam P90, P90/3, and A90 amplifiers stand out as top choices for anyone serious about their audio experience, providing the fidelity and emotional engagement that audiophiles crave.