Operation Manual
E-17E-16
English
Bi-amping
Bi-amping requires the use of two ampliers per
channel. Normally, your A49 is used to drive the high-
frequency (treble) speakers, while a power-amplier
(such as a P49/P349) is used for the lower (bass)
frequencies.
Connect your A49 to the speakers as described for
single wiring, with the exception that the A49 should be
connected to the speaker terminals labelled HF or ‘High
Frequency’.
en connect the power amplier (P49/P349, for
example) to the LF or ‘Low Frequency’ terminals, as in
the diagram. A pair of audio interconnect cables are also
required to connect the pre-amp outputs of the A49 to
the power amp inputs of the P49/P349.
e interconnects can be either XLR (recommended for
longer cable runs) or phono (RCA). Set the INPUT switch
on the P49/P349 to the appropriate setting for the cables
used.
WARNING: the strip of metal on the speakers connecting
the low frequency (LF) terminals to the high frequency (HF)
terminals MUST BE REMOVED. Failure to do so will result
in damage to both ampliers, which will not normally be
covered under warranty.
To allow the power state of the P49/P349 to be
controlled by the A49 please connect the TRIGGER OUT
to the TRIGGER IN using a mono 3.5mm jack lead – not
supplied.
An A49 and P49 connected to speakers using bi-amping.
PHONO
GROUND
ONLY
PHONO
(MM)
CD TUNER SAT BD PVR AV
RECORD
OUT
PRE
OUT
R
4–16 OHMS. CLASS 2 WIRING
SPEAKER 1 SPEAKER 2
L
4–16 OHMS. CLASS 2 WIRING
SPEAKER 2 SPEAKER 1
AUX R AUX L PRE OUT R PRE OUT L
TRIGGER OUT
6V 1A 12V 1.5A
ACCESSORY
POWER
110-120V/220-240V
~ 50-60 Hz
350W MAX
POWER INLET
SUPPLY
VOLTAGE
SWITCH POSITIONS
115 = 110 - 120V~
230 = 220 - 240V~
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
25dB/31dB
GAIN
L
R
PRE
IN
PRE
OUT
R
4–16 OHMS. CLASS 2 WIRING
SPEAKER 1 SPEAKER 2
L
4–16 OHMS. CLASS 2 WIRING
SPEAKER 2 SPEAKER 1
PRE IN R PRE IN L
110-120V/220-240V
~ 50-60 Hz
350W MAX
POWER INLET
SUPPLY
VOLTAGE
SWITCH POSITIONS
115 = 110 - 120V~
230 = 220 - 240V~
TRIGGER IN
TRIGGER OUT
LF
HF
LF
HF
R L
A49
P49
Remove
metal strip
Remove
metal strip
Make sure INPUT
switch matches wired
configuration (XLR or RCA)
Make sure MODE
switch is set to ST
Make sure GAIN
switch is set to 31dB
NOTE: Units can be interconnected via XLR or RCA.
Both versions shown for illustration purposes only.
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
XLR/RCA
INPUT
25dB/31dB
GAIN
25dB/31dB
GAIN
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
XLR/RCA
INPUT
25dB/31dB
GAIN
25dB/31dB
GAIN
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
XLR/RCA
INPUT
25dB/31dB
GAIN
25dB/31dB
GAIN
LF
HF
LF
HF
Bridged mode - P49 only
In bridged mode only the L+ and R+ outputs of SPEAKER
1 are active.
WARNING: Do not make any connections to the other speaker
terminals, doing so will severely damage your amplier.
If each speaker has more than one pair of connecting
terminals, use the terminals labelled LF or ‘Low
Frequency’.
To drive your right speaker, select one of the P49
ampliers and connect the red positive speaker terminal
labelled SPEAKER 1 L+ to the positive LF terminal of your
right speaker.
R
A C49 pre-amp and two P49 power amps in bridged configuration.
PHONO
GROUND
ONLY
PHONO
(MM)
CD TUNER SAT BD PVR AV
RECORD
OUT
PRE
OUT
AUX R AUX L PRE OUT R PRE OUT L
TRIGGER OUT
6V 1A 12V 1.5A
ACCESSORY
POWER
110-120V/220-240V
~ 50-60 Hz
350W MAX
POWER INLET
SUPPLY
VOLTAGE
SWITCH POSITIONS
115 = 110 - 120V~
230 = 220 - 240V~
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
25dB/31dB
GAIN
L
R
PRE
IN
PRE
OUT
R
4–16 OHMS. CLASS 2 WIRING
SPEAKER 1 SPEAKER 2
L
4–16 OHMS. CLASS 2 WIRING
SPEAKER 2 SPEAKER 1
PRE IN R PRE IN L
TRIGGER IN
110-120V/220-240V
~ 50-60 Hz
350W MAX
POWER INLET
SUPPLY
VOLTAGE
SWITCH POSITIONS
115 = 110 - 120V~
230 = 220 - 240V~
TRIGGER OUT
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
25dB/31dB
GAIN
L
R
PRE
IN
PRE
OUT
R
4–16 OHMS. CLASS 2 WIRING
SPEAKER 1 SPEAKER 2
L
4–16 OHMS. CLASS 2 WIRING
SPEAKER 2 SPEAKER 1
PRE IN R PRE IN L
TRIGGER IN
110-120V/220-240V
~ 50-60 Hz
350W MAX
POWER INLET
SUPPLY
VOLTAGE
SWITCH POSITIONS
115 = 110 - 120V~
230 = 220 - 240V~
TRIGGER OUT
L
Similarly, connect the red positive speaker terminal
labelled SPEAKER 1 R+ to the negative LF terminal of your
right speaker.
Repeat the above procedure to connect the second P49
amplier to the le speaker.
WARNING: Make absolutely sure you have used the correct
SPEAKER 1L+ and R+ terminals.
In this setup only one interconnect is required to each
power amplifer and it should be connected to the PRE
IN L input.
C49
P49 P49
e interconnects can be either XLR (recommended for
longer cable runs) or phono (RCA). Set the INPUT switch
on the P49 to the appropriate setting for the cables used.
WARNING: If your speakers support bi-wiring, there will be a
strip of conductive metal connecting the low-frequency (LF)
terminals to the high-frequency (HF) terminals; this MUST NOT
BE REMOVED in a bridged mode system.
To allow the power state of the P49 to be controlled by
the A49 please connect the TRIGGER OUT to the TRIGGER
IN using a mono 3.5mm jack lead – not supplied.
Make sure MODE
switch is set to BRIDGE
on both amps
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
XLR/RCA
INPUT
25dB/31dB
GAIN
25dB/31dB
GAIN
NOTE: Units can be interconnected via XLR or RCA.
Both versions shown for illustration purposes only.
Make sure INPUT
switch matches wired
configuration (XLR or RCA)
on both amps
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
XLR/RCA
INPUT
25dB/31dB
GAIN
25dB/31dB
GAIN
Make sure GAIN
switch is set to 31dB
on both amps
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
ST/BRIDGE/DM
MODE
XLR/RCA
INPUT
XLR/RCA
INPUT
25dB/31dB
GAIN
25dB/31dB
GAIN