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JET CITY AMPLIFICATION JCA20HV, Owner'S Manual

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JET CITY AMPLIFICATION 

JCA20HV 

OWNER’S MANUAL 

 
 

Thank you for your support! 

 

 

Your JCA20HV was designed by the world-renowned tube amp 
designer Mike Soldano, in SEATTLE, WASHINGTON, and meticulously 
assembled to assure that it meets the highest quality standards and 
value. 

 
 
 

 
 

 

DANGER: RISK OF ELECTRIC SHOCK, DO NOT OPEN

 

 

ATTENTION: RISQUE DE CHOC ELECTRIQUE!                    

 

NE PAS OUVIRIR! 

Summary of Contents for JCA20HV

Page 1: ...JCA20HV was designed by the world renowned tube amp designer Mike Soldano in SEATTLE WASHINGTON and meticulously assembled to assure that it meets the highest quality standards and value DANGER RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION RISQUE DE CHOC ELECTRIQUE NE PAS OUVIRIR ...

Page 2: ...his amplifier to rain or moisture 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 ...

Page 3: ... consult an electrician for replacement of the outdated obsolete outlet 9 Unplug the amplifier during lightning storms or when unused for long periods of time 10 Refer all servicing to qualified service personnel Servicing is required when the product has been damaged in any way such as power cable or plug damage liquid has been spilled or objects have fallen into the product the product has been ...

Page 4: ...reat vintage rock tones The tone controls are interactive each control will affect the others This gives you the flexibility to dial in all the unique and subtle tones you ve been searching for JCA20HV also has a presence control that lets you add high end sparkle and a depth switch which boosts the low end Other features include a post EQ solid state effects loop and multiple speaker impedance ou...

Page 5: ... output will be PRESENCE adds an overall brightness which can be handy when trying to cut through in a dead room DEPTH enhances the amplifier s low end frequencies to give extra heaviness to your sound STANDBY switch Used in conjunction with the main POWER switch Use the STANDBY to warm up your amp s tubes before turning on the POWER switch Always put the amp in STANDBY before turning the main pow...

Page 6: ... power tubes once a year and your preamp tubes every other year However it is entirely possible for tubes particularly preamp tubes to last decades Here are some signs that you need to change your tubes Excessive noise like squealing humming or hiss Little or no high end treble Muddy low end or loss of clarity amp sounds muddy Mysterious fluctuations in the amp s overall volume There s no sound fr...

Page 7: ...f jacks labeled series or parallel This allows you to run a speaker from your head to one cabinet and then from that cabinet to another one When you use the series output the load increases so you add each cabinet s impedance to determine the overall load two 8 ohm cabs in series 16 ohm load When you use the parallel output the load decreases If all cabinets have the same impedance then divide tha...

Page 8: ...r repair the product using suitable new or reconditioned parts In the case in which other parts are used which constitutes an improvement Jet City Amplification may at its discretion charge the customer for these parts If the warranty claim proves to be justified the product will be returned to the customer freight prepaid Warranty claims other than those indicated above are expressly excluded 3 R...

Page 9: ...t 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 Jet City Amplification shall not be held responsible for any cost resulting from such a modification adaptation Free inspections and maintenance repair work are expressly excluded from this warran...

Page 10: ... for repair with a written repair order form 5 Warranty Transferability 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 Jet City Amplification 6 Claims for Damages Failure of Jet City A...

Page 11: ... 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 pressu...

Page 12: ...respective owners Their use neither constitutes a claim of the trademarks by Jet City Amplification nor the affiliation of the trademark owners with Jet City Amplification Jet 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 ...

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