Monitor Audio Radius Series Product Manual

Introduction

Congratulations on your purchase of the Radius Series loudspeakers. Monitor Audio is confident that these high-quality components will provide years of enjoyment.

Please follow this user manual carefully for important information regarding positioning and setup procedures. For further advanced information, please visit www.monitoraudio.com.

Note: The Radius 45 incorporates a thermal protection device to protect the drive unit and tweeter from permanent damage. If the speaker stops working after extended play, turn off the source for approximately 10 minutes before retrying.

Set Up and Positioning

This section guides you through optimum positioning and setup. An illustration is provided on page 4 to assist with positioning. For instructions on fixing the Radius 225 or Radius One to a wall, please refer to page 5. The Radius One features fixings compatible with a Sanus Wall Bracket.

NOTE: The Radius 45 and 90 can be fixed to a wall using the Universal Speaker Mount (sold separately). The Radius 200 is not designed for wall mounting.

Self-adhesive rubber feet are provided to prevent movement due to vibration when using the Radius Series loudspeakers on a table or equipment stand. The Radius 270 comes supplied with rubber feet fitted into the plinth for use on hard floors. Further details can be found on page 10.

Radius One

The Radius One can be placed either just below or just above your TV/projector screen. It can be wall-mounted with the supplied bracket (refer to page 5) or alternatively using the Sanus VMA202 Soundbar Speaker Mount. Refer to www.sanus.com for further information.

Radius 200

The Radius 200 is the range's first dedicated centre speaker, designed to be placed on a shelf or cabinet.

Positioning - Front Speakers

The centre channel speaker should be positioned in a home theatre room such that its tweeter is directed towards the listener's ear. The centre channel's primary role is to anchor dialogue and other on-screen sounds to the screen, typically handling up to 60% of a movie soundtrack.

The centre channel can be placed either above or below the TV screen, as close as possible. If positioned in a cabinet or on top of the TV, ensure its front edge aligns with the front edge of the TV or shelf. Ideally, the height of the centre channel's tweeter should be close to the height of the front speakers' tweeter, within approximately 600mm.

When placing Radius loudspeakers on the wall around a plasma/LCD TV, the left and right speakers should be positioned between 22° and 30° to the left and right of the seating position, with the tweeters at approximate ear level.

Positioning - Surround Speakers

Ideally, the primary pair of surround speakers should be placed to the left and right of the listening position, either in line with it or just behind it (90° - 110°). If using a 6.1 or 7.1 channel system with more than two surround speakers, or if side placement is not available in a 5.1 channel system, consider placement behind the listening position, facing the front of the room (135° - 150°).

Surround speakers should be placed high enough so that the drivers do not fire directly at ear level when sitting down. A general rule of thumb is to place them at ear level while standing, to avoid overpowering the front speakers.

If surrounds are mounted on brackets on the side walls, experiment with aiming them.

Surround speaker placement ideal for home theatre may not be ideal for multichannel music listening, where a precisely focused rear soundstage is preferred. If both types of listening are important, position them as a compromise between the two.

Optimum Speaker Placement

A diagram illustrates the ideal placement for front, centre, and surround speakers in a home theatre setup, indicating the recommended angles and positions relative to the listener.

Fixing the Radius 225/ Radius One to a Wall

Additional Points to Remember

• When using the wall fixing plate, the speaker will drop by 7.5mm due to the keyhole fixing.
• Templates are supplied with the products to aid fixing.
• The Radius 225 grille badge can be rotated by applying pressure with your thumb/finger and turning.
• Allow no more than 100mm (4 inches) of excess cable protruding from the wall. Any excess cable can be coiled inside the terminal panel.
• Please see the template for suggested rubber foot placement.

Diagrams show the wall mounting plate and cable management for wall-mounted speakers.

Radius 270 Feet and Spikes

The Radius 270 is supplied with rubber feet for use on hard floors or when spikes are inappropriate.

To use spikes: First, remove the rubber feet by simultaneously twisting and pulling them out, revealing the threaded inserts. Then, take the spikes and twist them clockwise into the plinths. Ensure they are fully inserted. Stand the cabinet up and place it in its final location. To level, adjust the spikes accordingly before finally tightening the knurled locking nut.

Specifications

Owner Information

Please fill in the following details for your records:

Product Details

• Model: ......................................................................................................................
• Product Serial No: ......................................................................................................
• Date of Purchase: .....................................................................................................

Dealer Details

• Dealer Name: ...........................................................................................................
• Address: ...................................................................................................................
• E-mail address: ..........................................................................................................

Monitor Audio reserves the right to alter specifications without notice.

Contact Information

Monitor Audio Ltd.
24 Brook Road
Rayleigh, Essex
SS6 7XJ
England
Tel: +44 (0)1268 740580
Email: info@monitoraudio.com
Website: monitoraudio.com

V3-2021