Electro Harmonix Stereo Polychorus User manual

WARNING:

Your Stereo Polychorus XO comes equipped with an Electro

-

Harmonix

Please register online at http://www.ehx.com/product-registration or complete and return the enclosed
warranty card within 10 days of purchase. Electro-Harmonix will repair 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 applies only to original purchasers who have bought their product from an authorized Electro­Harmonix 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 the appropriate
office listed below. Customers outside the regions listed below, please contact EHX Customer Service for
information on warranty repairs at [e-mail] or [phone]. USA and Canadian customers: please
obtain a Return Authorization Number (RA#) from EHX Customer Service before returning your product.
Include with your returned unit: a written description of the problem as well as your name, address,
telephone number, e-mail address, and RA#; and a copy of your receipt clearly showing the purchase date.

United States & Canada

EHX CUSTOMER SERVICE
ELECTRO-HARMONIX
c/o NEW SENSOR CORP.
55-01 2ND STREET
LONG ISLAND CITY, NY 11101
Tel: [phone]
Email: [e-mail]

Europe

JOHN WILLIAMS
ELECTRO-HARMONIX UK
13 CWMDONKIN TERRACE
SWANSEA SA2 0RQ
UNITED KINGDOM
Tel: [phone]
Email: [e-mail]

This warranty gives a purchaser specific legal rights. A purchaser may have even greater rights depending
upon the laws of the jurisdiction within which the product was purchased.

To hear demos on all EHX pedals visit us on the web at www.ehx.com

Email us at [e-mail]

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation. If the device is not installed and used in
accordance with the instructions, it may cause harmful interference to radio communications and void the
user's authority to guarantee the equipment.

Note:

This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

•

Reorient or relocate the receiving antenna.

•

Increase the separation between the equipment and receiver.

•

Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.

•

Modifications not expressly approved by the manufacturer could void the user's authority to operate the
equipment under FCC rules.

Consult the dealer or an experienced radio/TV technician for help.

- WARRANTY INFORMATION -

- FCC COMPLIANCE -

STEREO POLYCHORUS XO

ANALOG FLANGE/CHORUS

Congratulations on your purchase of the multi-purpose

Stereo Polychorus

. Carefully reading
these instructions will ensure full use of the tremendous variety of superb effects, which have
been engineered into this state-of-the-art device.

9.6DC-200BI power supply (same as used by Boss® & Ibanez®: 9.6 VDC/200 mA).
The Stereo Polychorus XO requires 110 mA at 9VDC with a center negative plug.
The Stereo Polychorus does not take batteries. Using the wrong adapter may
damage your unit and void the warranty.

The

STEREO POLYCHORUS’s

four switch-selectable modes are:

FILTER MATRIX-

the TUNE knob manually for “custom” flanging.

FLANGE –

whooshing sounds.

CHORUS-

effects.

DOUBLE TRACK-

A sweeping echo for moving sounds such as “12 string guitar” and rotating speaker

A comb filter, which creates “chime” effects. In this mode you can sweep

A sweeping comb filter which creates a variety of modulation effects and

A short-delay echo for spacious “stage effects”.

Plug the supplied AC adapter supplied into your Polychorus. Connect your instrument or
microphone to the INPUT jack and your amplifier to the MAIN OUT jack (for an amazing stereo
effect, connect a second amplifier to OUTPUT 2 simultaneously).

Press the BYPASS FOOTSWITCH to engage the effect. The status LED located above the
footswitch will light up. Press the footswitch again to switch back to bypass mode, the LED
shuts off.

FILTER MATRIX-

Select FILTER MATRIX mode. The TUNE control will shift the effect from a
high airy tone clockwise (CW) to a rich tone counterclockwise (CCW). While the RATE control
has no effect in this mode, turning the TUNE control will produce a manual or “custom” flange.
The FEEDBACK control determines how much of the processed signal is mixed in or “fed back”
to the input. In FILTER MATRIX, turning FEEDBACK CW will “sharpen” or increase the intensity
of the effect. CAUTION: In the extreme CW position the FEEDBACK control may cause
oscillation, a squealing or roaring sound. This is normal, and may be stopped by backing off
the FEEDBACK control.

FLANGE -

Turn the MODE switch to the FLANGE position. The RATE control determines how

fast the comb filter sweeps up and down through its pitch range. Turned fully CW, the

frequency is about ten cycles per second. Turned fully CCW, the sweep is slow, about one
cycle every ten seconds. The pitch range of the sweep is set by the combined action of the
WIDTH and TUNE knobs: The TUNE control sets the center frequency, and the WIDTH control
determines how far the sweep goes. Maximum TUNE range is obtained by setting the WIDTH
knob fully CW. The FEEDBACK knob also operates as in FILTER MATRIX.

CHORUS

- When CHORUS mode is selected, the FEEDBACK knob determines the number of
echoes: CCW for a single repeat, CW for more. The TUNE control will increase the delay time
of the echo as it is turned CW. The WIDTH control maximizes the delay range of the TUNE
control in its CW position, and emphasizes the modulating character of the CHORUS effect as it
is turned more CW. The RATE control operates as in FLANGE.

DOUBLE TRACK

purely an echo effect and the RATE control is disengaged.

SWEEP FILTER

sensation, if you set your unit to a very slow flange effect it is recommended to turn this off.

MAIN OUT & OUTPUT 2

– In this mode, all controls operate as in CHORUS mode, except that this is

– When set to ON, gives a smoother well rounded sound with a “liquid”

– MAIN OUT is for standard effect usage. For a total spacious stereo

effect, connect OUTPUT 2 to a second amplifier or a second channel on the same amplifier.

9V PWR JACK

– Connect the output plug of the supplied AC Adapter into the 9V power jack
at the top of the Stereo Polychorus. The Stereo Polychorus draws 110 mA of current from 9
VDC. The polarity of the power jack is center negative. The maximum allowable power supply
voltage is 12.0 VDC.

Use the following diagrams to quickly set up several of the basic dramatic effects of the
STEREO POLYCHORUS. When you have created these sounds, you will be ready to tailor your
own special settings of the

STEREO POLYCHORUS’s

many possibilities.