JET CITY AMPLIFICATION JCA20H User manual

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The warranty does not exclude or limit the buyer’s statutory rights
provided by national law, in particular, any such rights against the seller
that arise from a legally effective purchase contract.
The warranty regulations mentioned herein are applicable unless they
constitute an infringement of national warranty law.
Technical specifications and appearance are subject to change without notice. The
information contained herein is correct at the time of printing. The names of companies,
institutions or publications pictured or mentioned and their respective logos are
registered trademarks of their respective owners. Their use neither constitutes a claim of
the trademarks by et City Amplification nor the affiliation of the trademark owners with
et City Amplification. et City Amplification accepts no liabilities for any loss, which
may be suffered by any person who relies wholly, are part upon any description,
photograph or statement contained herein. Colors and specifications may vary slightly
from product. Products are sold through Authorized Re-Sellers only. Distributors and
dealers are not agents of et City Amplification and have no authority to bind et City
Amplification by any expressed or implied undertaking or representation.
Protect Your Hearing!
The US Government's Occupational Safety and Health Administration (OSHA) has specified
the following permissible noise level exposures:
Duration Per Day In Hours Sound Level dBA, Slow Response
8 90
6 92
4 95
3 97
2 100
1.5 102
J
JE ET T C CI IT TY Y A AM MP PL LI IF FI IC CA AT TI IO ON N
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JC CA A2 20 0H H

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O
OW WN NE ER R’ ’S S M MA AN NU UA AL L
•DANGER: RISK OF ELECTRIC SHOCK, DO NOT OPEN
•ATTENTION: RISQUE DE CHOC ELECTRIQUE!
NE PAS OUVIRIR!
•ACHTUNG: STROMSHLAG GEFÄHRDUNG, NICHT
AUFMACHEN!
CAUTION: To reduce the risk of electric shock, do not remove
cover or open rear panel. No user serviceable parts inside: refer
handling to qualified personnel.
WARNING: To reduce the risk of fire or electric shock, do not
expose this amplifier to rain or moisture.
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•In an inspection of the product by et City Amplification shows
that the defect in question is not covered by warranty, the
inspection costs are payable by the customer.
•Products, which do not meet the terms of the warranty, shall be
repaired exclusively at the buyer’s expense. et City Amplification
will inform the buyer of any such circumstance. If the buyer fails
to submit a written repair order within six (6) weeks, et City
Amplification shall return the unit to the customer C.O.D with an
invoice that will include charges for the inspection and a separate
additional charge for freight and packing costs. Such costs will
also be billed separately when a customer has sent in a unit for
repair with a written repair order form.
5 Warranty Transferabi ity
This warranty is extended exclusively to the original buyer
(customer of the retailer) and is not transferable to anyone who may
subsequently purchase the product. No other person (retailer, consumer,
etc) shall be entitled to give any warranty promise on the behalf of et
City Amplification.
6 C aims for Damages
Failure of et City Amplification to provide proper warranty service shall
not entitle the buyer to claim (consequential) damages. In no event shall
the liability of et City Amplification exceed the invoiced value of the
product.
7 Other Warranty Rights And Nationa Law

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•Warranty services will not be furnished if the product is not
returned with the original sales receipt.
•Tubes and loudspeaker drivers are considered maintenance items
and are excluded from all warranty claims.
•If the product needs to be modified or adapted in order to
comply with technical or safety standards on a national or local
level, in any country which is not the country for which the
product was not originally developed and manufactured, this
modification/adaptation shall not be considered a defect in
materials or workmanship. This warranty does not cover any such
modification/adaptation, irrespective of whether it was executed
properly or not. Under the terms of this warranty et City
Amplification shall not be held responsible for any cost resulting
from such a modification/adaptation.
Warranty Regu ation / Exc usions (Continued)
•Free inspections and maintenance/ repair work are expressly
excluded from this warranty, in particular, if caused by improper
handling of the product by the user. This applies to defects
caused by normal wear and tear of items such as knobs, tolex
and similar parts.
•Damages caused by the following conditions are not covered by
warranty:
•Improper handling, neglect or failure to operate the unit in
compliance with the instructions given in the et City
Amplification user manual.
•Connection or operation of the unit in any way that does not
comply with the technical or safety regulations applicable in the
country where the product is used.
•Damages/defects caused by force majeure or any other condition
that is beyond the control of et City Amplification
•Any repair or opening of the unit by unauthorized personnel (user
included) will void the warranty.
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This symbol, wherever it appears, alerts you to the
presence of uninsulated dangerous voltage inside the enclosure –
voltage that may be sufficient to constitute a risk of shock.
This symbol, wherever it appears, alerts you to the
important operating and maintenance instructions in the following
document.
IMPORTANT SAFETY INSTRUCTIONS:
1. Read and keep these instructions
2. Heed all warnings and follow all instructions
3. Do not operate near water
4. Clean only with a dry cloth
5. Do not block any ventilation openings. Install in accordance with
the manufacturer’s instructions
6. Do not install near heat sources such as radiators, heat registers,
stoves, or other apparatus that produce heat.
7. Protect the power cable from being walked on or pinched at the
plugs, convenience receptacles, and the point where they exit the
unit.
8. Do not defeat the safety purposes 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 third prong is provided for your safety. If
the provided plug does not fit into your outlet, consult an
electrician for replacement of the outdated/obsolete outlet.

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9. Use only attachments/ accessories specified by the manufacturer.
10. Unplug the amplifier during lighting storms or when unused for
long periods of time.
11. Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such
as power cable or plug damage, 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.
CONGRATULATIONS!
You have just purchased the tone that has been, until now,
financially out of reach to most of us for years!
Your CA20H was designed by a world renowned tube amplifier
guru Mike Soldano, in SEATTLE WASHINGTON, and meticulously
assembled to assure that it meets the highest quality standards and
value for your hard earned and hard spent money!
Whatever your musical taste may be, you will enjoy the versatility,
portability, and long-term durability of this kick ass, tube driven,
rock tone factory.
Thank you for purchasing a ET CITY AMPLIFICATION product.
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constitutes an improvement, et City Amplification may, at its
discretion, charge the customer for these parts.
2. If the warranty claim proves to be justified, the product will be
returned to the customer freight prepaid.
3. Warranty claims other than those indicated above are expressly
excluded.
3 Return Authorization Number
•To obtain warranty service, the buyer (or his authorized dealer) must
call et City Amplification or Authorized et City Amplification
Distributor (current list and contact information can be found at
( www.jetcityamplification.com ) during normal business hours
before returning the product.
•All inquiries must be accompanied by a description of the problem.
et City Amplification will then issue a Return Authorization Number
(RA Number).
•Once the RA Number has been obtained, the product must be
returned in its original shipping carton. The return Authorization
Number must be printed clearly on the shipping label on the outside
of the box, and included with the returned product. Both the product
in its original package and the Return Authorization Number must be
shipped to the address indicated by et City Amplification at the time
the call is made.
•Shipments without prepaid freight will not be accepted.
4 Warranty Regu ation / Exc usions

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"All the good music has already been written by people with wigs and stuff."-
Frank Zappa
WARRANTY
1 Register Your Product On ine
Please visit www.jetcityamplification.com within 30 days from the date of
purchase as listed on the buyer’s receipt to register your product. Doing
so will enable you to receive the most current information about our
company and products, directly from et City.
2 Warranty
1. et City Amplification warrants the mechanical and electronic
components of this product to be free of defects in material and
workmanship for a period of one (1) year from the original date of
purchase, in accordance with the warranty regulations described
below. If this product shows any defects within the specified
warranty period that are not excluded under this warranty as
described in section 4, et City Amplification shall, at its discretion,
either replace or repair the product using suitable new or
reconditioned parts. In the case in which other parts are used which
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“They were still booing him when we came on stage.” - avid St. Hubbins, Spinal
Tap
BEFORE YOU ROCK
Back to some serious stuff rock boy or rock girl. Before operating
your CA20H please make sure of the following:
•Check to make sure that the speaker is properly plugged
into one of the two speaker jacks located on the rear panel.
WARNING: If a speaker or suitable “dummy load” is not plugged into the
speaker jack, output transformer failure will occur. OUCH! This is not
good and NOT covered under warranty.
•Plug your guitar into the input jack on the front panel.
•Set the volume control to zero.
•Plug the power cable into the back panel and plug the cable
into a power receptacle. Turn on the power switch on the
amplifier and wait about 30 seconds for the tubes to warm
up.
•Turn up your volume switch on your guitar and impress your
friends with your amazing new tone.

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“When buying a used car, punch the buttons on the radio. If all the stations are
rock and roll, there's a good chance the transmission is shot.” Larry Lujack –
Chicago J
GENERAL OPERATION
The CA20H is a single channel amplifier and does one thing
really well…it sounds good. Since it is a single channel amplifier
it is easy to operate. Here’s a general overview and some
suggestions for easy operation.
•PREAMP: Adjust the amount of gain (distortion) that the
amplifier produces. The higher the preamp setting the more
overdriven the sound will be.
•BASS, MIDDLE and TREBLE: allow you to control the tone.
•VOLUME: will let you adjust how loud the amplifier will
sound.
•PRESENCE: adds an overall brightness, which can be handy
when trying to cut through in a ‘dead’ room.
The CA20H offers a far wider range of gain than most
amplifiers in its class. Its tonal character stretches from glassy
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clean, to gritty edge, to modern high-gain. Please experiment
with your amp until you find the tone that suites your musical
styles and tastes.
“Among God's creatures two, the dog and the guitar, have taken all the sizes
and all the shapes, in order not be separated from the man” – Andre Segovia
AMPS, SPEAKERS AND IMPEDANCE
The CA20H is designed for a 16ohm speaker. You may also operate this
amplifier in conjunction with additional speaker cabinets. An 8ohm or 16
ohm speaker cabinet will work fine with the CA20H, but we do not
recommend using a 4ohm cabinet.
QUICK SETTINGS FOR SELECTED TONES
•CLEAN SETTINGS: Set the VOLUME to 9 to maximize the
amplifiers extended headroom. Now simply use the PREAMP
control to achieve the desired tone and volume.
•HIGH GAIN SETTINGS: Initially, the VOLUME should be set to a
low level (somewhere between 3-5) and the PREAMP turned up
to give the desired gain and distortion. Then return to the
VOLUME control to set the desired loudness.
•REMEMBER TO EXPERIMENT: This is how you will get the most
out of your new amplifier.

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1.0 105
0.5 110
0.25 115
According to OSHA, any exposure in excess of the above permissible limits could result in
hearing loss. Ear plug protectors in the ear canals or over the ears must be worn when
operating this amplification system in order to prevent a permanent hearing loss if
exposure is in excess of the limits set forth above. To ensure against potentially dangerous
exposure to high sound pressure levels, it is recommended that all persons exposed to
equipment capable of producing high pressure sound levels such as this amplification
system be protected by hearing protection while this unit is in operation.