Ampeg Opto Comp User Manual

Owner’s Manual

IMPORTANT SAFETY INSTRUCTIONS

Opto Comp Analog Optical Compressor

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation
openings. Install in accordance
with the manufacturer’s instructions.

8. Do not install near any heat sources
such as radiators, heat registers, stoves,
or other apparatus (including amplifiers)
that produce heat.

9. Do not defeat the safety purpose
of the polarized or grounding-type plug.
A polarized plug has two blades with one
wider than the other. A grounding-type
plug has two blades and a third grounding
prong. The wide blade or the third prong
are provided for your safety. If the provided
plug does not fit into your outlet, consult
an electrician for replacement of the
obsolete outlet.

10. Protect the power cord from being
walked on or pinched particularly at plugs,
convenience receptacles, and the point
where they exit from the apparatus.

11. Only use attachments/accessories
specified by the manufacturer.

12. Use only with a cart,
stand, tripod, bracket, or table

PORTABLE CART

WARNING

specified by the manufacturer,
or sold with the apparatus.
When a cart is used, use
caution when moving the cart/
apparatus combination to
avoid injury from tip-over.

13. Unplug this apparatus during lightning
storms or when unused for long periods
of time.

14. Refer all servicing to qualified service
personnel. Servicing is required when the
apparatus has been damaged in any way,
such as power-supply cord or plug is
damaged, liquid has been spilled or
objects have fallen into the apparatus,
the apparatus has been exposed to rain
or moisture, does not operate normally,
or has been dropped.

15. This apparatus shall not be exposed
to dripping or splashing, and no object
filled with liquids, such as vases or beer
glasses, shall be placed on the apparatus.

16. Do not overload wall outlets and
extension cords as this can result in
a risk of fire or electric shock.

17. The MAINS plug or an appliance
coupler is used as the disconnect device,
so the disconnect device shall remain
readily operable.

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 the receiver.

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

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

CAUTION: Changes or modifications to this
device not expressly approved by Yamaha
Guitar Group, Inc. could void the user’s
authority to operate the equipment under
FCC rules.

This apparatus does not exceed the Class
A/Class B (whichever is applicable) limits
for radio noise emissions from digital
apparatus as set out in the radio
interference regulations of the Canadian
Department of Communications.

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Opto Comp Analog Optical Compressor

Exposure to extremely high noise levels
may cause permanent hearing loss.
Individuals vary considerably in
susceptibility to noise-induced hearing
loss, but nearly everyone will lose some
hearing if exposed to sufficiently intense
noise for a period of time. The U.S.
Government’s Occupational Safety and
Health Administration (OSHA) has specified
the permissible noise level exposures shown
in the following chart.

According to OSHA, any exposure in excess
of these permissible limits could result
in some hearing loss. To ensure against
potentially dangerous exposure to high
sound pressure levels, it is recommended
that all persons exposed to equipment
capable of producing high sound pressure
levels use hearing protectors while
the equipment is in operation. Ear plugs
or protectors in the ear canals or over
the ears must be worn when operating
the equipment in order to prevent
permanent hearing loss if exposure
is in excess of the limits set forth here:

Duration, per
day in hours

8 90 Duo in small club
6 92
4 95 Subway Train
3 97
2 100 Very loud classical music

1.5 102
1 105 Ryan screaming at Troy about deadlines

0.5 110

0.25 or less 115 Loudest parts at a rock concert

Sound Level
dBA, Slow
Response

Typical Example

RISK OF ELECTRIC SHOCK! DO NOT OPEN!

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT

REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED PERSONNEL.

The lightning flash with arrowhead symbol within
an equilateral triangle means “electric shock hazard”.
It is intended to alert the user to the presence of
uninsulated “dangerous” voltage within the product
enclosure, that may be of significant magnitude to
constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle means
“Warning/Caution!”. It is intended to alert the user of the
presence of important operating and maintaining (servicing)
instructions in the literature accompanying the appliance.

WARNING — To reduce the risk of fire or electric shock,
do not expose this apparatus to rain or moisture.

Laite on liitettävä suojakoskettimilla varustettuun pistorasiaan.

Apparatet må tilkoples jordet stikkontakt.

Apparaten skall anslutas till jordat uttag.

CAUTION

Correct disposal of this product: This symbol indicates that this product should not be disposed of with your household
waste, according to the WEEE directive (2012/19/EU) and your national law. This product should be handed over to an authorized
collection site for recycling waste electrical and electronic equipment (EEE). Improper handling of this type of waste could
have a possible negative impact on the environment and human health due to potentially hazardous substances that are generally
associated with EEE. At the same time, your cooperation in the correct disposal of this product will contribute to the effective
usage of natural resources. For more information about where you can drop off your waste equipment for recycling, please contact
your local city office, waste authority, or your household waste disposal service.

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Opto Comp Analog Optical Compressor

Table of Contents

Important Safety Instructions .................................................. 2-3

Table Of Contents ..................................................................... 4

Introduction.............................................................................. 4

Features ................................................................................... 4

Opto Comp Analog Optical Compressor Top Panel Features .......... 5

Opto Comp Analog Optical Comp Rear and Bottom Panel Features 6

Opto Comp Analog Optical Compressor Bottom Panel Features ..... 7

Opto Comp Analog Optical Compressor Suggested Settings ........... 8

Opto Comp Analog Optical Compressor Block Diagram ................. 9

Technical Specifications / Service Information ........................... 10

Introduction

The Ampeg Opto Comp Analog Optical Compressor pedal utilizes an optical circuit
to deliver smooth, vintage style compression to add headroom and sustain to your guitar
or bass.

Dial in a fast, subtle style to control peaks or crank up the compression to add
a unique character. Featuring a roadworthy all-metal chassis and true bypass switching,
the Opto Comp Analog Optical Compressor brings your tone to new heights.

Like all Ampeg products, your Opto Comp Analog Optical Compressor pedal
is designed by musicians and built using only the best of components. Each pedal
is tested to confirm that it meets our specifications, and we believe that this pedal
is the absolute best that it can be.

In order to get the most out of your new pedal, please read this manual before
you begin playing. Best of luck in all of your musical endeavors!

And thank you for choosing Ampeg.

Features:

• Delivers smooth, vintage style compression.

• Dial in the perfect sound with Compression and Release controls.

• Output control allows you to maximize sustain and make up for heavy compression.

• True bypass, analog design with incredible signal-to-noise ratio.

• Roadworthy all-metal chassis construction.

• 9V DC supply or battery capable (not included).

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