Operation Manual

Radius

RCA Line Level Outputs (Left & Right)8.

RCA line level outputs are provided in order to use other sub woofers in conjunction with the R370

by ‘daisy

chain’ type connection. The outputs are link out only connections and do not provide any form of ﬁltering.

IEC Mains Power Connector/ Fuse Location9.

The R370

is supplied with a two-pin mains input socket for connection to the mains supply. Use ONLY the

appropriate IEC mains lead provided with the product. Also ﬁtted is an external mains fuse. If a fuse blows

during operation a spare fuse is provided within the fuse holder for replacement. If you wish to change the

fuse, you can do this by removing the IEC mains lead and carefully levering out the original fuse from its

holder below the IEC mains input socket (9a). If the fuse blows again it is advisable to seek help from an

authorised service agent. DO NOT attempt to re-ﬁt a further fuse as this could result in serious damage to

the ampliﬁer unit.

Warning Information10.

See warning information on page 3

Mains Power Switch11.

The Mains Power Switch should be switched to the ‘Off’ position when the R370

will not be used for

extended periods. The switch must be in the ‘On’ position for the subwoofer to function.

WARNING: Due to the mains switch being located on the rear panel, the apparatus must be located in the

open area with no obstructions to access the mains switch.

Mains Voltage Selector 12.

This is factory set to your countries mains voltage speciﬁcation. Do not attempt to adjust this as this may lead

to permanent damage to the product and even the risk of ﬁre. There is a clear plastic cover over the selector

to prevent accidental adjustment.

Volume Control13.

This control allows the level or volume to be adjusted in order to achieve a balanced overall sound. To use this

facility you will need to play a selection of familiar music or ﬁlm excerpts. Start with the volume at minimum

and increase the level control until a balanced sound is established. If using an AV processor or AV receiver

ampliﬁer, the system can adjusted by the test tone function within the set-up features. (Refer to the set up

section in the AV processor or AV receiver ampliﬁer user guide.) When the R370

is correctly set-up, you

should not be able to identify its location easily in the room.

EQ 1 setting14.

The EQ 1 setting should be set as a default option. This will provide the best overall transient response and

power output. This setting will provide a maximally ﬂat response suitable for music or music video. Note:

Frequency roll off starts at 27Hz.

EQ 2 setting15.

The EQ 2 setting should be used when an emphasis in the low frequency is required. An additional boost of

4dB will be provided at 21Hz to give impact essential for action movies.

You can toggle between the EQ1 and EQ2 to test which one is best suited to your environment. This is done

by pressing the buttons located on the control panel.

The blue LED’s of the EQ buttons will remain on permanently. This indicates that the unit is in stand by mode

when not in use.