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SAFETY PRECAUTIONS

Features

Safety

Pr
ecautions

Featur

es

2

ZOOM 504 II 

ACOUSTIC

ZOOM 504 II 

ACOUSTIC

3

About power

• Since power consumption of this unit is

fairly high, we recommend the use of an
AC adapter whenever possible. When
powering the unit from a battery, use
only an alkaline type. 

AC adapter operation 

• Be sure to use only an AC adapter

which supplies 9 V DC, 300 mA and is
equipped with a "center minus" plug
(Zoom AD-0006). The use of an adapter
other than the specified type may
damage the unit and pose a safety
hazard. 

• Connect the AC adapter only to an AC

outlet that supplies the rated voltage
required by the adapter. 

• When disconnecting the AC adapter

from the AC outlet, always grasp the
adapter itself and do not pull at the
cable. 

• If the unit is not to be used for a long

time, disconnect the AC adapter from
the outlet. 

Battery operation 

• Use four IEC R6 (size AA) 1.5 V batteries

(alkaline/manganese). 

• The 504 II cannot be used for recharging. 

Pay close attention to the labelling of the
battery to make sure you choose the
correct type. 

• If the 504 II is not to be used for an

extended period of time, remove the
battery from the unit. 

• If battery leakage has occurred, wipe the

battery compartment and the battery
terminals carefully to remove all remnants
of battery fluid. 

• While using the unit, the battery

compartment cover should be closed. 

Environment 

Avoid using your 504 II in environments
where it will be exposed to: 
• Extreme temperature 
• High humidity or moisture 
• Excessive dust or sand 
• Excessive vibration or shock 

Handling

• The 504 II is a precision instrument.

Except for the foot switches, do not
push other parts with your feet or
subject them to strong force. 

• Take care that no foreign objects (coins

or pins etc.) or liquids can enter the unit. 

• Be sure to turn the power to all

equipment off before making
connections. 

• Before moving the unit, turn the power

off, and disconnect all cables and the
AC adapter. 

Alterations

Never open the case of the 504 II or
attempt to modify the product in any way
since this can result in damage to the unit. 

The 504 II is a sophisticated multi effect processor for acoustic or
electric guitar with the following features and functions: 

• Rich effect palette for acoustic guitar

The 504 II incorporates a wealth of effects specially designed for use with
an acoustic guitar. De-AMP reduces harshness when playing an acoustic
guitar through a guitar amplifier. AIR lends a spacious feeling to the
sound. TOUCH makes picking more uniform and smooth. The 504 II is
also useful as a preamplifier for recording acoustic or electric guitar, and it
offers various patches tuned specially for electric guitar. 

• Great for electric guitar too

The built-in simulator transforms the sound of an electric guitar into that of
an acoustic instrument. During a live performance, this makes it a snap to
switch between different sound characteristics. 

• Highly effective feedback suppressor 

The F.B.SUPPRESSOR function automatically detects the frequencies
where feedback (howling) occurs and attenuates that band. Operation can
be controlled easily with a foot switch. 

• Built-in auto-chromatic tuner 

The integrated tuning function lets you quickly and precisely tune your
instrument on stage. 

• Dual power supply enables operation anywhere 

The dual power supply principle allows the unit to be powered either from
an AC adapter or from four IEC R6 (size AA) batteries. Continuous
operation time on batteries is 8 hours with manganese batteries and 28
hours with alkaline batteries. 

• Compatible with foot switch and pedals 

An optional foot switch (FS01) or expression pedal (FP01/FP02) can be
connected to the CONTROL IN jack. The foot switch is useful for quickly
detecting the feedback frequency, and the expression pedal allows
adjusting the volume or effect tone in real time. 

• Improved successor to 504 

While inheriting the sound characteristics of the very successful ZOOM
model 504, the 504 II is even more compact and carries a lower price tag.
What's more, it incorporates the world's first wah effect specifically
designed for acoustic guitar, plus several other novel effects such as the
EMPHASIZER which duplicates the characteristic sound of a resonator. 

Warning

This symbol indicates explanations about extremely dangerous matters.
If users ignore this symbol and handle the device the wrong way, serious
injury or death could result.

Caution

This symbol indicates explanations about dangerous matters. If users
ignore this symbol and handle the device the wrong way, bodily injury
and damage to the equipment could result.

In this manual, symbols are used to highlight warnings and cautions for you to read so that
accidents can be prevented. The meanings of these symbols are as follows:

Please observe the following safety tips and precautions to ensure hazard-free use of the 504 II.

Warning

Caution

Caution

Caution

Summary of Contents for ACOUSTIC 504 II

Page 1: ...ation for future reference SAFETY PRECAUTIONS 2 Features 3 Terms Used in This Manual 4 Using the unit on batteries 5 Controls and Functions Connections Setting the input gain 6 Selecting Patches for P...

Page 2: ...De AMP reduces harshness when playing an acoustic guitar through a guitar amplifier AIR lends a spacious feeling to the sound TOUCH makes picking more uniform and smooth The 504 II is also useful as...

Page 3: ...his section explains some important terms that are used throughout the 504 II documentation Effect parameter The effects of the 504 II consist of a succession of modules that determine the sound These...

Page 4: ...nus plug into this jack When a plug is inserted in this jack the 504 II is turned on This stereo phone jack serves for connection to the guitar amplifier It is also possible to plug a pair of stereo h...

Page 5: ...the guitar amplifier and adjust the volume to a suitable position Bank Patch number You can use the keys to directly switch among the banks A F Keep both keys depressed for more than 1 second While t...

Page 6: ...h Bypass Tune the other strings in the same way Pitch is high Pitch is correct Pitch is low The bypass or mute condition cannot be activated when the unit is in the edit mode Press one of the foot swi...

Page 7: ...lay Terminate the edit mode To terminate the edit mode and return to the play mode set the PLAY EDIT selector to the PLAY position Parameter value Lit Parameters selectable with PLAY EDIT selector 1 P...

Page 8: ...y When storing or copying a patch it is not possible to use the keys to switch only the bank number Press the STORE key once more When the store copy process is completed the unit reverts to the origi...

Page 9: ...select To change the Patch call method back to normal direct select operation simply turn the unit off and back on again Confirm Use the foot switches to select the patch you want to use next Changin...

Page 10: ...starts when the F B SUPPRESSOR parameter is set to SC or set to off and then on again When wishing to retain the SC setting also while the unit is turned off store the currently selected patch 4 Retu...

Page 11: ...es These factory default patches can be restored also if they were overwritten by patches created by the user There are two ways of restoring factory defaults All Initialize returns the entire set of...

Page 12: ...ent to the original sound producing a feeling of depth and ambience PLAY EDIT selector Shows the position which is used to call up the parameter Global parameter Global parameters that apply to all pa...

Page 13: ...ngering GUT Simulates the sound of a classic guitar with nylon strings Selects the preamp characteristics for acoustic guitar Simulator for changing the sound of an electric guitar to that of an acous...

Page 14: ...a slight shift Higher values result in larger shift between original sound and effect sound PEDAL DOUBLING Allows using the expression pedal FP01 FP02 connected to the CONTROL IN jack to adjust the in...

Page 15: ...layed component and reverb component to the original sound producing a feeling of depth and ambience TIME LEVEL Original sound Delay sound Delay time PEDAL DELAY Allows using the expression pedal FP01...

Page 16: ...OB SCENE WET BRIGHT BOSSA FUNKY 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 DLY REV Large Volume Volume Volume Wah Volume DLY REV Emphasizer 12 string Volume Volume Volume Volume Volum...

Page 17: ...to provide maximum protection against the emission of electromagnetic radiation from inside the device and protection from external interference However equipment that is very susceptible to interfere...

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