User Manual
Table Of Contents
5
Panel Descriptions
Rear Panel
14 AC IN jack
Connect the included power cord.
* Use only the power cord that was included with the unit.
15 FOOT CONTROL jack
Refer to “Using the Foot Controller” (p. 6).
16 SPEAKER OUT jacks
Connect a speaker box (separately sold; e.g., the WAZA Amp
Cabinet412, the WAZA Amp Cabinet212).
Jack usage
8Ω (If this jack is used, 16ΩA/16ΩB cannot be used.)
Either 16ΩA or 16ΩB
Both 16ΩA and 16ΩB
* Only use speaker cable to connect the speaker. Do not use any
shielded cable designed for use with guitars.
* To prevent malfunction and equipment failure, always turn
down the volume, and turn o all the units before making any
connections.
17 LINE OUT jacks
Connect this to your PA system or recorder. You can obtain powerful
guitar amp sound just as if you were playing through the speaker.
You can use this in conjunction with an external PA system, or to
record your performance via direct line while monitoring the sound
from the connected speaker cabinet.
Adjust the output level using the [VOLUME] knob of each channel.
* The WAZA AMP HEAD 75 is equipped with a balanced (XLR) type
jack. Wiring diagrams for the jack is shown below. Make
connections after rst checking the
wiring diagrams of other equipment
you intend to connect.
[GND LIFT] switch
Loop hum noise may occur when other
external devices are connected to the
WAZA AMP HEAD 75. In such instances, you may be able to mitigate
the problem by switching the position of the [GND LIFT] switch. The
[GND LIFT] switch should be normally set to OFF.
Switch Description
ON Pin 1 is disconnected from the WAZA AMP HEAD 75’s ground.
OFF Pin 1 connects to the WAZA AMP HEAD 75’s ground.
18 MIDI IN connector
You can control the WAZA AMP HEAD 75 from a multi-eect unit or
a MIDI foot controller.
How the MIDI receive channel is specied
Receive channel Operation
CH 1 Hold down the [CLEAN] button while turning the power on.
CH 2 Hold down the [CRUNCH] button while turning the power on.
CH 3 Hold down the [LEAD 1] button while turning the power on.
CH 4 Hold down the [LEAD 2] button while turning the power on.
For the MIDI messages that can be received, refer to “WAZA AMP
MIDI IN” at the end of this manual.
* The receive channel setting is remembered even when the
power is turned o.
19 PHONES jack
Connect headphones here. You can obtain powerful guitar sounds
just as if you were playing through the speaker. To adjust the
volume, use the [VOLUME] knob of each channel, along with the
[MASTER] knob.
* If a plug is inserted in this jack, no sound will be output from the
connected speaker cabinet. This is convenient if you don’t want
loud sound to be produced from the speaker, such as when
you’re practicing at night.
* The output of the PHONES jack is mono.
20 EFX LOOP A/B, SEND/RETURN jacks
Connect an external eect device (mono).
Connect the SEND jack to the input of your external eect device,
and connect the output of your external eect device to the
RETURN jack.
[LOOP] switch
Value Explanation
PARALLEL The external eects sound and the direct sound are mixed.
SERIES Only the external eects sound is played.
* When SERIES is set, if the volume of the external eects unit
is turned down completely, or the power is not turned on, no
sound will be heard.
21 REC OUT
O
port
You can use a commercially available USB 2.0 cable to record the
sound of the WAZA AMP HEAD 75 into your computer.
You must install the USB driver when connecting the unit to
your computer.
Download the USB driver from the BOSS website. For details, refer
to Readme.htm which is included in the download.
www.boss.info
Turning the Power On/O
Once everything is properly connected, be sure to follow the
procedure below to turn on their power. If you turn on equipment
in the wrong order, you risk causing malfunction or equipment
failure.
1. Make sure that the WAZA AMP HEAD 75’s [MASTER] knob
and the volume of the devices connected to the
WAZA AMP HEAD 75 are set to 0.
* Before connecting your instrument to the WAZA AMP HEAD 75’s
INPUT jacks, set the [VOLUME] knob to the minimum setting
(far left).
2. Turn on the WAZA AMP HEAD 75.
* Before turning the unit on/o, always be sure to
turn the volume down. Even with the volume
turned down, you might hear some sound
when switching the unit on/o. However, this is
normal and does not indicate a malfunction.
* This unit is equipped with a protection circuit.
A brief interval (a few seconds) after turning
the unit on is required before it will operate
normally.
* This unit is equipped with a cooling fan in order to prevent
internal overheating. When you turn on the power, the fan will
spin briey to verify that it is operating correctly.
3. Turn on the power of the connected devices.
4. Adjust the volume levels for the devices.
Before switching o the power, lower the volume on each of the
devices in your system and then TURN OFF the devices in the
reverse order to which they were switched on.
* If you need to turn o the power completely, rst turn o the
unit, then unplug the power cord from the power outlet. Refer
to “To completely turn o power to the unit, pull out the plug
from the outlet” (p. 2).
1: GND 2: HOT
3: COLD