B1-2-3 Front Panel
Laney
3
3
8
Passive Input
:
High impedance input for instruments with normal output i.e. lower output level.
Active Input
:
Low impedance input with half the input sensitivity of the passive input for instruments with an active circuitry and
high output levels. As there are so many different output levels from so many types of instruments available, you should try both
sockets before making a decision. Players using floor-mounted effects may also benefit from using the input to avoid unduly
overloading the pre amp.
Tuner
:
Socket provided for connecting an external tuner. Using this socket in conjunction with the Stand by switch
(25)
switched to
stand-by allows silent tuning.
Input Level Indicators
:
The LED indicators give you a visual indication of the level of signal present in the pre amp. The level of
signal is determined by the positions of the FET gain control
(6)
and the tube output control
(5+7)
. The signal indicated by the LED's
has its source directly before the master volume control
(23)
and after all the EQ options and FX loops. The reason for this is
straightforward - variations in EQ and external effects levels can have a dramatic effect upon the level of signal running through the pre
amp. Indicating the level of signal present in the pre amp before the EQ and FX loop facilities would not give you a realistic indication
of the level passing through the pre amp and into the power amp sections. Giving rise to the possibility of unwanted input distortion
from levels running to high. The ideal level should be set so that the red LED is activated only during the most aggressive playing
section. This assures that the pre amp is running at its optimum performance level and assures that a sufficient level of signal is present
at the send of the FX loop
(38-40)
and capable of driving any outboard processing equipment connected to this socket.
Drive
:
This control sets the level of tube drive applied to the onboard ECC83 tube. When used in conjunction with the tube output
control
(7)
the onboard tube can be used to generate anything from a warm tube sound through to a heavily distorted fuzz bass. For a
clean warm tube sound the control should be set around 4-5. At this point it should be noted that the position of the Preamp Mix control
(8)
will have a fundamental effect upon the sound heard - see section eight. For a more dramatically distorted valve sound, simply dial in
more valve drive and adjust the output (7) as required.
Fet Gain
:
This control sets the level of FET gain to the pre amp signal. FET gain produces a clean wide bandwidth signal. As in the
Drive section above, the position of the Preamp Mix control
(8)
will have a fundamental effect upon the sound heard - see section eight.
Tube Output
:
This control sets the overall level of the tube stage and should be set to the desired volume level- say 5. At this point it
should be noted that the position of the Preamp Mix control
(8)
will have a fundamental effect upon the sound heard - see section eight.
For a more dramatically distorted valve sound, simply dial in more valve drive and adjust the output as required.
Preamp Mix
:
This control sets the mix of input signal type routed through the pre amp. It can be set to route either the signal from
the FET stage or the signal from the TUBE stage - or any combination of either of these signals. In order to get a true 50/50 mix the
following procedure should be followed. Select full FET on the mix control - set the FET stage to the desired level. Turn the mix
control to full tube - set the desired drive and output level to the same level as the FET channel - there is now a true 50/50 signal mix
1
2
3
4
5
7
B series MANUAL
Input
5
5
5
+
+
+
0
0
0
-
-
-
50/50
Fet
Tube
Preshape
1
0
Run
Standby
Power
Output
Input
Passive
Active
Tuner
Preamp Mix
EQ
Drive
Output
Tube
Mid
Lo
Hi
Hi
Pres
0
1
2
3
4
5
6
7
8
9
10
Bright
Eq Defeat
Level
Lo
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
1
2
3
4
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
0
4
3
2
1
1
2
3
4
5
4
3
2
1
1
2
3
10
9
8
7
6
5
4
3
2
1
0
4
5
Laney
Compression
Treble
Fet Gain
Bass
Volume
Mid
6
7
12
8
13
14
15
16
26
11
17
18
22
23
24
25
2
3
9
10
1
19
20
B1
B1
21
Model number
5
4
6