Laney
7
7
B2/B3 Rear Panel
91
27
90
26
Internal/Hi
:
Speaker connector to the two internal 10“ loudspeakers. 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 ISub, this
speakon receives a full range signal. When the amp mode is set to Bi amp, the onboard active cross over
(31)
sends only the Hi
frequency content to this speakon, the Lo signal is sent to the Sub/Lo connector
(30)
. The frequency of the active crossover is 150Hz,
anything above 150Hz is sent to the this socket, anything below is sent to the Sub/Lo socket. The level of the signal sent to the Hi
socket is controlled by the active crossover level control allowing the desired balance of sound to be obtained ; the output to the Lo
speaker remains fixed. .
Sub/Lo
:
Speaker connector for connecting external Sub cabinets on the B2, or the internal Sub loudspeaker on the B3. 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 ISub, this speakon receives a full range signal. When the amp mode is set to Bi amp, the Lo frequency
signal is sent to this speaker, the Hi signal is sent to the Internal/Hi socket
(90)
. 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.
Power amp mode switch
:
This switch selects the mode of operation of the B2/B3 power amplifier section. Three modes of
operation are available ISub, Bi-Amp, and Internal only.
-In ISub mode the two onboard power amplifiers run in parallel supplying 750 watts RMS of full range signal to each of the two
output connections
(90)
feeds the two 10“ loudspeakers and
(91)
supplies the single 15” loudspeaker on the B3 or is used for connection
of an external cabinet on the B2.
-In Bi amp mode the onboard active crossover splits the frequency response of the pre amplifier and sends any frequencies below
150Hz to the (15“ Sub loudspeaker (B3 only) or
(91)
on the B2 model) and anything above 150Hz to the two 10” loudspeakers.
-In Internal only mode, Only the two 10“ loudspeakers are used. No signal appears on the Sub/Lo connector.
Descriptions for all other functions on the B2/B3 rear are identical to those listed on previous pages for B1 rear layout.
Cabinet connections.
91
92
81
83
84
82
90
B series MANUAL
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
ISub
ISub
Bi-amp
Bi-amp
Internal Only
Internal Only
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
Bi-Amp/Lo
Bi-Amp/Lo
Min Load
2 Ohms
Min Load
2 Ohms
Min Load
2 Ohms
Min Load
2 Ohms
Sub/Lo
Sub/Lo
Internal/Hi
Internal/Hi
~
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
36
32
33
34
90
31
85
83
81
84
82
82
83
39
42
38
40
41
37
N
EUTRIK
N
EUTRIK
N
EUTRIK
Model
Model
Model
Model
Operation
Operation
Operation
Operation
Amp Mode Switch
Amp Mode Switch
Amp Mode Switch
Amp Mode Switch
Sub
Sub
Internal
Internal
Internal
Internal
On
On
On
On
Lo
Lo
Horn
Horn
Horn
Horn
Horn
Horn
Horn
Horn
B3
B3
B3
B3
Full Range
Bi-Amp (Xover)
Full Range
Bi-Amp (Xover)
ISub
Bi-Amp
ISub
Bi-Amp
B3
B3
B2
B2
Part Number 005083
Part Number 005083
Part Number 005084
Part Number 005084
Model
B2
B2+Sub
B2+Sub
Model
Model
B2
B2+Sub
B2+Sub
Model
Operation
Full Range
Full Range
Bi-Amp (Xover)
Operation
Operation
Full Range
Full Range
Bi-Amp (Xover)
Operation
Amp Mode Switch
Internal Only
ISub
Bi-Amp
Amp Mode Switch
Amp Mode Switch
Internal Only
ISub
Bi-Amp
Amp Mode Switch
Hi
Hi
Off
Off
Off
Off
Horn on/off
:
Enables or disables the onboard HF horn.
Internal
:
Connection to the internal two 10“ loudspeakers.
Sub
:
Connection to the internal 15“ sub loudspeaker
Horn Hi/Lo
:
Reduces the output level from the horn.
85
81
84
Information
:
Mode switch selection details.
Note: On the B2 when used without an extension speaker, Set mode (90) to ‘Internal Only’