Monitor Audio Apex AW-12 Owner'S Manual Download Page 8

Page: 8 / 16

1. Crossover Frequency Control

The crossover frequency control only operates when connected to the stereo inputs. It does not have any
effect when connected to the LFE input. This control feature is used to set the upper frequency limit (low pass)
of the Apex AW-12. The crossover control should be set in accordance with the size or bass output of the
main/satellite speakers. Refer to the following chart as a guide to setting the crossover frequency control to
the optimum position. Much will depend on the correct low frequency response of the main speakers and
their position within the room. Experimentation is advisable.

2. Phase Control Switch

The Phase Control is used to synchronise any delay between the Apex AW-12 and main/satellite speakers.
When the Apex AW-12 is in phase with the main/satellite speakers the sound should be full bodied. Sit in a
normal listening position whilst adjusting the phase switch. Help from another person may be required. When
set correctly the location of the subwoofer should be almost undetectable. Experimentation is recommended
in order to achieve optimum results. However it should be noted that in most cases the phase control switch
should be set to 0 degrees, especially when using a digital AV processor or AV receiver amplifier.

3. Power Mode Switch with On-Auto Facility

The Power Mode Switch has two positions: ‘On’–‘Auto’. With the switch in the ‘On’ position, the subwoofer
is permanently switched on under all conditions and will need to be manually put into Standby mode.  While
in Standby mode, the W-12 may be woken by pressing the EQ button.  In the ‘Auto’ position the subwoofer
will automatically wake once an input signal is received and will remain on while still receiving a signal. The
Apex AW-12 will switch into standby mode following a period of 20 minutes without an LFE signal.  Refer to
page 8 for further information.

4. 12 Volt Trigger Input ~ Centre Pin = +12Vdc

For external power control from AV amplifier/ receiver to the W-12. Monitor Audio recommend using this
function and a lead is supplied. This 12 volt signal is generated by the AV amp/receiver and tells the W-12
to turn on from standby mode. This allows a more accurately controlled auto on/off function, and is far more
energy efficient.
When using the 12v trigger, the Power Mode Switch (3) must be in the

AUTO

position, for it to function

correctly.

5. USB Connector

This is provided to update the firmware within the W-12.

6. RCA Line Level Inputs (Stereo Left & Right)

For connection to a 2 channel/ stereo amplifier system. Connection should be provided by a pair of high-
quality signal cables from the pre-out section of an amplifier.

Note:-

cable lengths should not exceed 10 metres to avoid interference from other electrical appliances.

7. RCA Line Level Outputs (Stereo Left & Right)

To be used to feed additional sub-woofers to the W-12 by ‘daisy chain’ type connection. The outputs are link
out only connections and do not provide any form of filtering.

8. LFE Input (RCA Type)

This input is to be used when connecting the W-12 to an AV amplifier/ receiver. When using the LFE input, the
crossover control is not used. This is due to the crossover function being controlled and set by the AV
amplifier/ processor when it’s set up procedure is run.

9. LFE Output/ Link (RCA Type)

To be used to feed additional sub-woofers to the W-12 by ‘daisy chain’ type connection. The output is a link
out only connection and does not provide any form of filtering.

Type of Main Speaker

Monitor Audio Product

Crossover Control

Setting

Large floor-standing speaker

PL300; GS20/60; RS6/8; BR6

40-60 Hz

Small floor-standing speaker

RS5; BR5; R270

50-70Hz

Large stand-mount/ bookshelf speaker

PL100; GS10