Electro-Harmonix 22500 Quick Start Manual
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Electro-Harmonix 22500 Quick Start Manual

Dual stereo looper
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Congratulations on your purchase of the Electro-Harmonix 22500 Dual
Stereo Looper. Although the 22500 has a compact footprint it is loaded
with numerous powerful features, including:
Dual Stereo Loops with either independent or locked loop lengths
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Sequential Looping enables verse/chorus switching
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Parallel Looping allows simultaneous playback of two loops
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Selectable Microphone input with adjustable gain and Phantom Power
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Reverse and Octave functions at the touch of a button
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Undo-Redo your last overdub
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Overdub with adjustable feedback amount
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Create loop lengths that are completely free-form, locked to each other
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or quantized to internal rhythms
100 Loop Banks per SD Card, each bank containing up to 2 loops
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Rhythm Guide with 16 built-in drum loops
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Footswitch selectable for All Stop, Tap-Tempo, or Rhythm Start/Stop
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USB Port enables backup/restore to PC or MAC
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Includes high capacity SD Memory Card for up to 12 hours of loop time
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Optional external Bank-Up/Down Foot Controller (sold separately)
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9.6VDC/500mA power supply included
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WARNING: Your 22500 comes equipped with an Electro-Harmonix 9.6VDC-
500mA power supply. The 22500 requires 240mA at 9VDC with a center negative
plug and does not accept batteries. Using the wrong adapter may damage your
unit and void the warranty. Please do not exceed 10.5VDC on the power plug.
22500
Dual Stereo Looper
7

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Summary of Contents for Electro-Harmonix 22500

  • Page 1 • WARNING: Your 22500 comes equipped with an Electro-Harmonix 9.6VDC- 500mA power supply. The 22500 requires 240mA at 9VDC with a center negative plug and does not accept batteries. Using the wrong adapter may damage your unit and void the warranty. Please do not exceed 10.5VDC on the power plug.
  • Page 2 22500 QUICK START GUIDE MODES − Selecting / Types / Use MODE SELECTION & KNOB: OVERDUB: Very much like a Feedback control on a delay effect0 the OVERDUB value sets the loop audio volume loss for each pass while overdubbing/ Set to zQQ so the loop never loses volume/ •...
  • Page 3 Even though the loops may be completely independent in Freeform mode, we recommend you always record Loop A first. When set to Loop-Lock mode, the 22500 requires Loop A to be recorded first since Loop B’s length is automatically set by Loop A.
  • Page 4 • Lock Loop B’s length to Loop A • Play and record the loops in parallel or sequentially • Quantize loops to exact bar lengths, synchronized to the 22500’s Rhythm Digit 3: n: Non-Quantize mode, Quantize is off...
  • Page 5 Freeform Mode In Parallel mode, one or both loops play simultaneously, allowing you to use the 22500 like a 2 track recorder or two independent loopers. To follow these examples, please set LOOP Mode to the settings shown at the start of each section.
  • Page 6 Parallel Loop Recording/Playback Examples Loop Lock Mode Continuing examples of Parallel Loop recording and playback, this time with Loop B’s length locked to Loop A. LOOP-LOCK LOOP-LOCK L2nP L24P PARALLEL— PARALLEL— QUANTIZE OFF: QUANTIZE ON: • Loop A’s length automatically sets •...
  • Page 7 Sequential Loop Recording/Playback Examples Freeform & Loop-Lock Mode In Sequential mode, only one loop plays at a time, allowing you to switch back and forth between the 2 loops either immediately or when one of the loops comes to its end. To follow these examples, please set LOOP Mode to the settings at the start of each section.
  • Page 8 CLIP L & R LEDs – When an input signal’s amplitude exceeds the maximum input level of the 22500’s A/D converter, the channel’s respective CLIP LED briefly lights up. Aim to adjust the INPUT GAIN knob so that these LEDs barely ever light.
  • Page 9 Record-Ready also occurs when a Quantize mode (see QUANTIZE, page 19) is enabled: after pressing a loop’s FSW to begin recording, the 22500 waits for the next bar’s beat 1 or the next beat of the Rhythm loop and then automatically starts recording on the beat.
  • Page 10 The PLAY LED blinks to indicate the loop is about to start or stop playing. This occurs when the 22500 is set to Sequential mode with either Loop Lock or Quantize enabled. In these cases the loop currently playing will finish out its loop while PLAY blinks before changing over to the other loop.
  • Page 11 not change the playback speed of the other loop or the Rhythm loop. You can playback and overdub in any of the Octave modes. Half Speed: Upon pressing the OCTAVE button to activate half speed, the 4-digit display shows the word “down” for about 1 second. When set to half speed, the pitch of the loop goes down 1 octave and the tempo is halved.
  • Page 12 Enabled Enabled If the Rhythm loop is not playing, a single press of the STOP/TAP FSW starts the 22500’s Rhythm loop. Three or more taps of the STOP/TAP FSW sets the tempo for Loops A and B and the Rhythm loop.
  • Page 13 The tap tempo range is 40 to 320 BPM. NOTE: If you tap 3 times but one pair of taps is way off from the other, the 22500 throws away the 3rd tap which means a 4th tap is needed to set the tempo.
  • Page 14 Quantized loops. - MORE ON UNDO/REDO - The 22500 allows for one level of undo and redo. When each loop’s MEM LEDs are blinking, an undo or redo is capable of being performed for the respective loop. If the MEM LED is lit solid than no undo or redo is available for that loop.
  • Page 15 FC Jack – ¼” Foot Controller Jack. Insert a standard, mono ¼” instrument cable into the FC jack. Connect the other end of the cable to the optional 22500 Foot Controller. The 22500 Foot Controller can be used to scroll up or down through the 22500’s loop banks.
  • Page 16 Use the EHX Pan Pedal, mixer, or audio workstation with the outputs of the 22500 to create a stereo mix-down for a variety of applications. Stereo Looping – The 22500 always records each loop in stereo, no matter your settings or the connections to the input/output jacks.
  • Page 17 The 22500 defaults back to your last used mode values so that you can set up the 22500 to work a certain way and always come back to that way of working when creating new loops. If you would like to change your default settings, first go to an empty bank and then change the settings before starting to record on either loop.
  • Page 18 To end Loop B, when set to U mode, press Loop B’s FSW, then the 22500 will continue recording Loop B until it comes to the end of the current Loop A multiple.
  • Page 19 FSW. If you press the loop FSW on beat 2 during the second bar of recording, the 22500 continues to record up to the following beat 1 of the next bar, at which point the 22500 goes into PLAY mode. The loop will be exactly 2 bars in length.
  • Page 20 B are independent of each other so the 22500 can be used like two loopers in one unit. Set Digit 1 to L for Loop-Lock mode and the 22500 acts like a 2-track recorder where Loop B’s length is set by Loop A and the two loops play back in sync with each other.
  • Page 21 Trigger LED lights up. 4. Press and release Loop A’s FSW. You should see both Loop A’s REC LED and Trigger LED blinking. The 22500 is in Record-Ready mode, waiting for a sound to trigger recording. 5. Start playing your instrument. The 22500 should automatically begin recording upon playing your first note.
  • Page 22 If tempo has been adjusted since recording a Loop Bank’s first loop – either by tapping in a new tempo or by rotating the MODE knob – press and hold MODE for about 1.5 seconds, while R TEMPO is lit or blinking. The 22500 will jump back to the original tempo.
  • Page 23 MODE. - MEMORY CARD, USB, IMPORTING AUDIO - SDHC Memory Card – The 22500 records 16-bit audio at a sample rate of 44.1 kHz. All recorded audio is stored on removable Secure Digital High Capacity (SDHC) memory cards.
  • Page 24 Cards need to be formatted to the FAT32 file system. Most cards are pre- formatted for FAT32. If you need to format an SD Card, attach the 22500 to a Windows PC via the USB port, and choose “FAT32” under the File System pull- down menu.
  • Page 25 The xx stands for a number between 00 and 99. From the factory, the 22500 comes supplied with 16 loops. Using a PC or Mac, you can import audio files made elsewhere onto the 22500 or backup and restore loops to the SD card inside the 22500.
  • Page 26 • Importing Audio Files for RHYTHM Loops The 22500 allows you to import your own Rhythm loops onto the SD card and play them as your background rhythms. Your Rhythm loops can replace the factory Rhythm loops on the SD Card or be in addition to the factory Rhythm loops.
  • Page 27 We have some rules for the Rhythm loop audio files imported onto the 22500: The audio files must be in .wav format. • The .wav files must have 16-bit resolution and a sample rate of • 44.1kHz. The audio files must be stereo.

  • Page 28: Warranty Information

    This applies only to original purchasers who have bought their product from an authorized Electro-Harmonix retailer. Repaired or replaced units will then be warranted for the unexpired portion of the original warranty term. If you should need to return your unit for service within the warranty period, please contact EHX Customer Service at 718-937-8300 or info@ehx.com for a Return...

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