Laney
5
5
B1 Rear Panel - See P7 for B2/B3 differences
Power input
:
Socket for connecting mains plug.
Reset Button
:
Should the unit be connected in error and experience a continuos overload situation such as connecting the unit to an
incorrect supply voltage or should the amplifier experience a catastrophic component failure then the reset button will trip. This will
cause the unit to completely shut down and all power to the amplifier will be removed. Once the unit has tripped the reset button needs
to be pushed in. If the unit fails to reset itself immediately then the amplifier should be looked at by a qualified technician. Consult your
dealer.
Amp1/Hi
:
Speaker connector for connecting external speaker cabinets. The type of signal present at this speaker connector varies,
depending upon the selected mode of operation for the power amplifier. When the amp mode selector is set to DUAL MONO this
speakon receives a 750-watt full range signal. When the amp mode is set to Bi amp, the onboard active cross over
(31)
comes into play.
In this situation the power amp signal is split into a Hi signal and a Lo signal. The Hi signal is sent to this speakon, the Lo signal is sent
to the Amp2/Lo speaker
(30)
. The frequency of the active crossover is 150Hz, anything above 150 is sent to the Hi socket, anything
below is sent to the Lo socket. The level of the signal sent to the Hi socket is controlled by the active crossover level control; the output
to the Lo speaker remains fixed. When the amp mode selector is switched to Bridge this speakon should not be used..
Bridge
:
This speaker socket should be used when the amp mode selector is switched to bridge, the remaining speaker connections
should not be used whilst running in bridge mode.. The minimum load for the bridge speakon is 4 Ohms. The output of the unit in
bridge mode is 1500 watts RMS. Bridge mode is ideal when you only have one cabinet
Amp2/Lo
:
Speaker connector for connecting external speaker cabinets. The type of signal present at this speaker connector varies,
depending upon the selected mode of operation for the power amplifier. When the amp mode selector is set to DUAL MONO this
speakon receives a 750-watt full range signal. When the amp mode is set to Bi amp, the onboard active cross over
(31)
comes into play.
In this situation the power amp signal is split into a Hi signal and a Lo signal. The Lo signal is sent to this speaker, the Hi signal is sent
to the Amp1/Hi speaker
(28)
. The frequency of the active crossover is 150Hz, anything above 150 is sent to the Hi socket, anything
below is sent to the Lo socket. The level of the signal sent to Lo speaker is fixed. When the amp mode selector is switched to Bridge
this speakon should not be used.
Standby Switch
:
(
Continued) The standby switch also functions as a reset switch should the unit experience faulty running
conditions caused by items such as incorrect cabinet impedance matching. For example, whilst the unit is capable of running into a
wide variety of loads, if the loads are extremely low (1 Ohm for example) for long periods of time the unit may shut down. The unit
will also shut down should it detect a fault in items such as cable etc. When the unit shuts down it has the same effect as switching
the standby switch, ie. it shuts down the output section. All the pre amp functions are still available, including any pre-amp out
connections, to a mixing desk etc. The front panel remains illuminated with the addition of the fact that both the blue and the green
LED associated with the standby switch are lit at the same time. In order to reset the amplifier flick the standby from run to standby
then back to run. Under most normal circumstance this will reset the amp. If this procedure does not reset the amplifier it may be
necessary to reset the amplifier by switching the unit off at the mains power supply and then back on again. Making sure the unit has
been switched to standby before powering down.
Power Switch
:
This switch should be used in conjunction with the standby switch to switch the unit on and off when required.
30
25
26
26a
27
28
29
B series MANUAL
30
29
27
28
26a
Power Consumption
750Watts ~50-60Hz
Power Consumption
750Watts ~50-60Hz
Made in the United Kingdom by BLT Industries Ltd.
Made in the United Kingdom by BLT Industries Ltd.
Attention.
Debrancher le cordon d’alimentation
avant toute intervention.
Attention.
Debrancher le cordon d’alimentation
avant toute intervention.
Avis
Risque de choc electrique - ne pas ouvrir.
Avis
Risque de choc electrique - ne pas ouvrir.
!!
CAUTION
CAUTION
RISK OF ELECTRIC SHOCK - DO NOT OPEN
RISK OF ELECTRIC SHOCK - DO NOT OPEN
Warning
To reduce the risk of fire or electric shock do not
expose this appliance to rain or moisture.
Warning
To reduce the risk of fire or electric shock do not
expose this appliance to rain or moisture.
Caution
To reduce the risk of electric shock do not remove covers.
No user serviceable parts inside. Refer servicing to
qualified personnel only.
Caution
To reduce the risk of electric shock do not remove covers.
No user serviceable parts inside. Refer servicing to
qualified personnel only.
Warning This equipment must be earthed.
Warning This equipment must be earthed.
Aux
In
Aux
In
Effects
Loop
Effects
Loop
Send
Send
0dB
0dB
-10dB
-10dB
Bypass
Bypass
Return
Return
Direct
Inject
Direct
Inject
Pre Eq
Pre Eq
Post Eq
Post Eq
Amp Mode
Amp Mode
Dual Mono
Dual Mono
Bi-amp
Bi-amp
Bridge
Bridge
Pre-Amp
Out
Pre-Amp
Out
Footswitch
Footswitch
Lo
Lo
Hi
Hi
Level
Level
Active Crossover
Active Crossover
22
44
44
22
11
11
55
33
33
5
5
-
0
+
-
0
+
Bi-Amp/Hi
Bi-Amp/Hi
Bridge
Bridge
Bi-Amp/Lo
Bi-Amp/Lo
Min Load
2 Ohms
Min Load
2 Ohms
Min Load
2 Ohms
Min Load
2 Ohms
Min Load
2 Ohms
Min Load
2 Ohms
~
115V
~
230V
~
115V
230V
~
Supply Voltage
Supply Voltage
Push To Reset
Push To Reset
kc
oL
kc
oL
k c o l
n U
k c o l
n U
kc
oL
kc
oL
k c o l
n U
k c o l
n U
kc
oL
kc
oL
k c o l
n U
k c o l
n U
36
32
33
34
90
31
39
42
38
40
41
37