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Congratulations on your purchase of the Intelligent Harmony
Machine (IHM): a compact, harmony generating, polyphonic
pitch-shifting powerhouse! The IHM creates authentic sound-
ing diatonic harmonies—harmonies within a given key, tracked
from single notes—and performs polyphonic pitch-shifting—
fixed pitch shifts independent of key, on both single notes
and chords—all from a standard electric guitar, bass or many
other electronic instruments. It accepts power from 9V bat-
teries and standard 9VDC center-negative power supplies. In
addition to the required input and output jacks, the IHM also
features a dry output jack for extra routing flexibility.
WARNING: This device comes equipped with an Electro-Harmonix 9.6DC-200 power sup-
ply. It requires 26mA at 9VDC with a center negative plug. Use of the wrong adapter or
a plug with the wrong polarity may damage the device and void the warranty. Do not
exceed 10.5VDC on the power plug. Power supplies rated for less than 30mA will cause
the device to act unreliably.
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Table of Contents
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Summary of Contents for Electro-Harmonix Intelligent Harmony Machine
- Page 1 IHM also features a dry output jack for extra routing flexibility. WARNING: This device comes equipped with an Electro-Harmonix 9.6DC-200 power sup- ply. It requires 26mA at 9VDC with a center negative plug. Use of the wrong adapter or a plug with the wrong polarity may damage the device and void the warranty.
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Page 2: Controls And Connections
Controls and Connections 1. KEY Knob This seven-position rotary switch, in conjunction with the toggle switch to its right, sets the key the IHM is in while in Intelligent Mode. This knob has no effect while in Polyphonic Override Mode. 2. - Page 3 4. POLY-OVERRIDE Button Use this button to switch between Intelligent Har- mony mode and Polyphonic Override mode. When his switch is lit the IHM is in Polyphonic Override mode. 5. INTERVAL SELECT Knob This eleven-position rotary switch selects the interval of the harmony or pitch shift applied to the effect signal.
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Page 4: Intelligent Mode
Operating Instructions Insert the output plug from the supplied 9VDC AC adapter into the power jack at the top of the IHM, or make sure a working 9V battery is installed in the unit. The IHM must be powered to pass signal, even in bypass. Connect an instrument cable from your guitar to the INPUT jack. - Page 5 these options, hold down the POLY-OVERRIDE button for about two seconds, until it starts blinking. From here, press and release the same button again and the blinking speed changes. There are three speeds: slow, medium, and fast. Slow is the factory default and matches the printed labels on the IHM. The interval settings are: SECONDARY INTERVALS SLOW...
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Page 6: Notes And Specifications
MOMENTARY PITCH SWEEP TIME When in momentary mode, by default, the pitch changes instantly to the set interval upon pressing the footswitch, and changes instantly back to the bypass signal upon releasing the footswitch. The IHM includes an option to slow down the pitch sweep time when pressing and releasing the footswitch. -
Page 7: Warranty Information
WARRANTY INFORMATION Please register online at www.ehx.com/product-registration or complete and return the enclosed warranty card within 10 days of purchase. Electro-Harmonix will re- pair or replace, at its discretion, a product that fails to operate due to defects in materials or workmanship for a period of one year from date of purchase. This ap- plies only to original purchasers who have bought their product from an authorized Electro-Harmonix retailer.
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