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eA21u.fm 1 ページ ２００５年１１月４日 金曜日 午後５時２３分
Operation Manual
© ZOOM Corporation
Reproduction of this manual, in whole or in part,
by any means, is prohibited.
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eA21u.fm 2 ページ ２００５年１１月４日 金曜日 午後５時２３分 SAFETY PRECAUTIONS Usage Precautions Handling •Never place objects filled with liquids, such as vases, on Warning SAFETY PRECAUTIONS the A2.1u since this can cause electric shock. • Do not place naked flame sources, such as lighted candles, on the A2.1u since this can cause fire. In this manual, symbols are used to highlight warnings and • The A2.1u is a precision instrument. Do not exert undue cautions for you to read so tha
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eA21u.fm 3 ページ ２００５年１１月４日 金曜日 午後５時２３分 Contents SAFETY PRECAUTIONS Usage Precautions.................................... 2 Features ...............................................................................................4 Terms Used in This Manual ................................................................ 5 Controls and Functions / Connections ............................................. 6 Selecting a Patch ..........................................................
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eA21u.fm 4 ページ ２００５年１１月４日 金曜日 午後５時２３分 Features Thank you for selecting the ZOOM A2.1u (simply called the "A2.1u" in this manual). The A2.1u is a sophisticated effect processor for acoustic guitar with the following features. ● Latest technology for top performance Excellent sound quality is assured by signal processing circuitry featuring 96 kHz/24 bit sampling and internal 32-bit processing. Frequency response remains flat to 40 kHz, and signal-to-noise ratio
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eA21u.fm 5 ページ ２００５年１１月４日 金曜日 午後５時２３分 Terms Used in This Manual This section explains some important terms that are used throughout the A2.1u documentation. IN MODEL MIC COMP/LIMIT LO EQ HI EQ ZNR MOD/EFX DELAY/REVERB OUT ■ Effect module comprises information about the on/off status of each effect module, about the effect type used in each As shown in the illustration above, the A2.1u can be module, and about effect parameter settings. The thought of as a combi
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eA21u.fm 6 ページ ２００５年１１月４日 金曜日 午後５時２３分 Controls and Functions / Connections Module selector Top Panel Switches between play/manual mode and edit mode. In edit mode, the knob selects the module for operation. BANK [-]/[+] keys In play mode and manual mode, the keys serve for directly switching to the next lower or higher bank. In edit mode, the keys switch the effect type for the currently selected module. [STORE] key Serves for storing edited patches in memory. Display Shows patch numb
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eA21u.fm 7 ページ ２００５年１１月４日 金曜日 午後５時２３分 Controls and Functions / Connections Parameter knobs 1 - 3 These knobs allow changing the value of effect parameters or the level of the overall patch. During rhythm playback, the knobs let you select a pattern, set the tempo, and adjust the rhythm volume. [PEDAL ASSIGN] key This key lets you select the function of the built-in expression pedal. The currently selected function is shown by a lit LED. [MANUAL] key Switches between play mode and manual
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eA21u.fm 8 ページ ２００５年１１月４日 金曜日 午後５時２３分 Selecting a Patch While playing your instrument, try out various patches to see what the A2.1u can do. Turn power on Use a shielded cable with mono phone plug to connect your guitar to the [INPUT] jack of the A2.1u. To power the A2.1u from the AC adapter, plug the adapter into a wall outlet and plug the cable from the adapter into the [DC 9V] jack on the A2.1u. Set the [POWER] switch on the rear panel of the A2.1u to ON. Turn the playback system o
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eA21u.fm 9 ページ ２００５年１１月４日 金曜日 午後５時２３分 Selecting a Patch Adjust tone and volume To adjust the effect sound and volume levels in play mode, the Parameter knobs 1 – 3 can be used. Each knob controls a specific parameter. Parameter knob 1 Parameter knob 3 Mainly adjusts the MIX parameter of the MOD/EFX Adjusts the PATCH module (the level of the LEVEL parameter effect sound mixed to the (output level of the orignal sound). entire patch). Parameter knob 2 Adjusts the MIX parameter of the D
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eA21u.fm 10 ページ ２００５年１１月４日 金曜日 午後５時２３分 Using the Tuner The A2.1u incorporates an auto-chromatic tuner. To use the tuner function, the built-in effects must be bypassed (temporarily turned off) or muted (original sound and effect sound turned off). Switch to bypass or mute Setting the A2.1u to the bypass condition In play mode (or manual mode), press both [W]/[Q] foot switches together BP briefly and release. Setting the A2.1u to the mute condition In play mode (or manual mode), press b
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eA21u.fm 11 ページ ２００５年１１月４日 金曜日 午後５時２３分 Using the Tuner Adjusting the reference pitch of the tuner If required, you can fine-adjust the reference pitch of the A2.1u tuner. The default setting after power-on is center A = 440 Hz. Turn parameter knob 1. 40 The current reference pitch is shown. The adjustment range is 35 – 45 (center A = 435 to 445 Hz). While the reference pitch value is shown, turn parameter knob 1 to adjust it. 42 When you release the parameter knob, the display indication
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eA21u.fm 12 ページ ２００５年１１月４日 金曜日 午後５時２３分 Using the Rhythm Function The A2.1u has a built-in rhythm function that plays realistic drum sounds in various patterns. The rhythm function is available in play mode or in the bypass/mute condition. Set the A2.1u to play mode (or manual mode) If the Module selector is set to a position other than "PLAY", set it to "PLAY". The rhythm function can be used both in HINT play mode and manual mode. Start the rhythm function To start the rhythm function
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eA21u.fm 13 ページ ２００５年１１月４日 金曜日 午後５時２３分 Using the Rhythm Function Adjust the rhythm volume To adjust the rhythm volume, turn parameter knob 3. 25 When you turn the parameter knob, the current setting (0 – 30) is shown on the display. Adjust the tempo The rhythm pattern tempo can be adjusted in the range of 40 – 250 BPM (beats per minute). To continuously change the rhythm tempo, turn parameter knob 2. By connecting a foot switch (FS01) to the [CONTROL IN] jack and assigning the "tap tem
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eA21u.fm 14 ページ ２００５年１１月４日 金曜日 午後５時２３分 Editing a Patch The patches of the A2.1u can be freely edited by changing the effect parameter settings. Try editing the currently selected patch to create your own sound. Select the effect module Turn the Module selector to select the effect module to edit. The following settings are available. (5) (1) MODEL module (4) (6) (2) MIC module (7) (3) (3) COMP/LIMIT module (8) (4) LO EQ module (2) (5) HI EQ module (1) (9) (6) ZNR module (10) (7) MOD/SFX m
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eA21u.fm 15 ページ ２００５年１１月４日 金曜日 午後５時２３分 Editing a Patch Terminate the edit mode NOTE When you select another patch To terminate the edit mode and return after editing, the changes you have to the play mode, set the Module made in edit mode will be lost selector to the "PLAY" position. unless you store the patch first. To retain the changes, store the patch A2.1u returns to play mode (or manual mode). as described on page 16. Change the parameter value To change the setting value of eff
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eA21u.fm 16 ページ ２００５年１１月４日 金曜日 午後５時２３分 Storing/Copying Patches An edited patch can be stored in a bank of the user area (A – d). It is also possible to store an existing patch in another location to create a copy. In play mode, manual mode, or edit mode, press the [STORE] key. The bank and patch number are shown on the display as a flashing indication. A0 Patches of banks in the preset area (0 – NOTE 3) are read-only. No patches can be stored or copied into these locations. If you pre
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eA21u.fm 17 ページ ２００５年１１月４日 金曜日 午後５時２３分 Storing/Copying Patches To cancel the store process To cancel the store process, operate the Module selector before pressing the [STORE] key again (step ). Press the [STORE] key once more When the store/copy process is completed, the unit returns to the previous mode, with the target patch being selected. D4 Specify the store/copy target patch number To specify the store/copy target patch number, use the [W]/[Q] foot switches. D4 ZOOM A2.1u
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eA21u.fm 18 ページ ２００５年１１月４日 金曜日 午後５時２３分 Using the Built-in Expression Pedal The expression pedal on the top panel of the A2.1u lets you adjust effect parameters or the volume in real time during play, or alter the feedback control frequency. Which element is controlled by the pedal can be selected for each patch individually. Select the patch for which the expression pedal is to be used Select the element to be controlled by the expression pedal Press the [PEDAL ASSIGN] key to select the
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eA21u.fm 19 ページ ２００５年１１月４日 金曜日 午後５時２３分 Using the Built-in Expression Pedal Operate the pedal Move up or down While playing your instrument, move the expression pedal up or down. To switch a module on or off When you push the expression pedal fully down, the parameter or module selected with the [PEDAL ASSIGN] key will be switched between on and off. Push fully down HINT When the expression pedal is assigned to the TONE parameter, the MODEL module can be switched on and off.
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eA21u.fm 20 ページ ２００５年１１月４日 金曜日 午後５時２３分 Using the Feedback Control The feedback control function of the A2.1u allows automatic or manual detection of the frequency range where acoustic feedback occurs. This frequency range is then attenuated to eliminate feedback. The feedback control function can be set in edit mode and can also be operated by foot switch or the built-in expression pedal. 2. Turn parameter knob 2 to set the feedback frequency, using the setting Manua
