Denon ADV-M51 User's Guide download pdf (Page 22)

ENGLISH

Volume adjustment control (LEVEL)

• This control only functions when the LF DIRECT switch (v) is

set to the “OFF” position.

• Use this control to adjust the volume of the active subwoofer.

• When turned clockwise ( ) from the center position, the

volume of the active subwoofer increases, and when turned

counterclockwise ( ), the volume decreases. Set to the

desired position.

Auto standby selector switch (AUTO STANDBY)

ON : The auto standby function is activated

OFF : The auto standby function is deactivated

Line input connector (LINE IN)

• Connect this to the AV amplifier’s pre-out connector

(“SUBWOOFER”, “MONO OUT”, etc.) using the included

connection cord (3-meter RCA pin cord).

Line output connector (LINE OUT)

• The signal input to the line input connector is output as such

from here in parallel.

• When using two active subwoofers, connect the other active

subwoofer’s line input connector to this connector.

Phase selector switch (PHASE)

• This switches the phase of the output signal with respect to

the input signal.

• Normally use the subwoofer with this switch set at the

“NORM.” position. If the continuity between the sound of the

active subwoofer and the left and right speakers seems

unnatural, try switching to the “REV.” position, and set the

switch to the position in which the sound is most natural.

LF direct switch (LF DIRECT)

• When using the active subwoofer connected to a Dolby

Digital- or dts-compatible AV amplifier, if this function is turned

on the signals bypass the active subwoofer’s crossover and

volume adjustment circuits, resulting in purer, higher quality

sound. Note that when this is done the crossover adjustment

control (b) and volume adjustment control (n) will no longer

function.

Crossover adjustment control (CROSSOVER)

• This control only functions when the LF DIRECT switch (v) is

set to the “OFF” position.

• This control sets the upper limit of the frequencies reproduced

by the active subwoofer.

• Setting criteria

50Hz : For left/right speakers with diameters of 20 cm or

greater

100Hz : For left/right speakers with diameters between 10

and 25 cm

200Hz : For left/right speakers with diameters of 12 cm or

less

• When using a Dolby Digital- or dts-compatible AV amplifier, we

recommend turning the LF DIRECT switch (v) to the “ON”

position and not using this function.

“Dolby” is a trademark of the Dolby Laboratories Licensing

Corporation.

“dts” is a trademark of Digital Theater Systems.

LINE IN

PHASE LF DIRECT

CROSSOVER(Hz)

REV. NORM.

AUTO STANDBY

ON:GREEN

STANDBY:RED

OFFON

POWER

OFF

200

LEVEL

MIN MAX

LINE OUT

Active subwoofer (DSW-3L) rear panel

About the AV amplifier’s crossover frequency selection

The crossover frequency of the satellite speaker/center

speaker and the active subwoofer (the boundary between the

frequency range produced by the active subwoofer and the

other speakers) is set on the connected AV amplifier, and is

usually fixed at between 80 and 120 kHz.

With some amplifiers, however, including the Denon ADV-

M51, this frequency can be selected. When using this type of

amplifier, the crossover frequency can be selected to suit your

tastes.

When using the DSW-3L active subwoofer with this type of

amplifier, a richer sound can be achieved by setting the

crossover frequency to around 150 Hz. Adjust the crossover

frequency to suit your tastes. For instructions on switching,

refer to your amplifier’s operating instructions.

When connecting to a Dolby Digital- or dts-compatible AV

amplifier, whether one on which the crossover frequency is

fixed or one on which it can be adjusted, we recommend

setting the LF DIRECT switch of the active subwoofer (DSW-

3L) to the “ON” position.

Auto Standby Function

• The amplifier is automatically set to the standby mode if no

signal is input for 5 to 11 minutes, thereby saving

electricity.

The power turns on immediately when a signal is input.

Status indicator

• The two-colored LED indicates the active subwoofer’s

operating status, as follows:

Power “ON” .........................................................Lights green

Auto power off (standby mode)................................Lights red

Power “OFF”................................................................LED off

Protective circuit activated ....................................Flashing red

Power switch (POWER)

• The power turns on when this switch is set to the “ON”

position.

• Several seconds are required for the set to begin operating.

This is because the set includes a built-in muting circuit to

prevent noise when the power switch is turned on and off.

• When set to the “OFF” position, the power turns off.

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