A legendary guitar hero asked if we could tweak his 20h to be just a little cleaner, and a little darker. A pair of jet city custom eminence drivers and switchable mono stereo input jacks gives jca24s speaker volume and connection options together in one package. The jet city jca22h tube guitar amplifier head you asked for it, and here it is. Jet city jca20h hunt amplification guitar amp repair. Jet city jca20h this is the first jet city ive opened up, and i was actually impressed with the build quality. The purpose of this thread is going to be for discussing mods to the jet city 20h, or any other topic pertaining to the jca model 20h. Hey guys i was looking for a good tube amp thats affordable and i came across the jet city jca50h. I just got a mathed pair of jj el84s and 3 tungsol 12ax7s for the pre. Jca20h 20w tube guitar amp head the jet city jca20h tube amp head delivers pure tube tone from a singlechannel amplifier with absolutely no gimmick features to dilute the alltube signal path.
I put a set of reflector 6p14p output tubes in it and nos pres. Initially made for those unable to afford a soldano slo100 this is often considered the. The inclusion of a loop would be a betrayal of the amps central philosophy, and if you really need reverb or delay after the jca20hs preamp distortion, your only real option is to add it at the mixing desk. Oct 17, 2012 jet city uses audiograde metal film resistors and highquality copper for all internal connections to maintain sonic integrity. Since we first encountered jet city amps, the usa brand has been steadily building up its business in the uk, and with good reason. They seem awesome for the price fx loop, two channels, okay clean tone especially with the 50w version, huge amount of gain, reverb. A new twinchannel alltube guitar head for those on a budget. The jca 20h owners club and mod thread yes i do custom modsparts listsmod other amps, pm me for more infopricing.
The pv was settled in at 340v after 30 minutes while the bias was a very chilly 16. Based in redmond, washington, jet city products are made in china, but designed in the usa by some seriously qualified amp gurus, including michael soldano, thds andy marshall and ben verellen, who are all based in nearby seattle, hence the jet city moniker. The slo100 is arguably his most iconic design, a highoctane monster that allows tonehounds with enough cash to fill their nostrils with the stench of freerange valve distortion. View and download jet city amplification jca20h owners manual online. Move the feet and stand it up on one end to make a. May 14, 2018 massive thank you to jet city amps for sending me this incredible amp to demo. Distributors and dealers are not agents of jet city amplification and have no authority to bind jet city amplification by any expressed or implied undertaking or representation. On, sponsored content refers to articles, videos, or audio recordings that are produced or curated by an advertiser but that premier guitar is happy to share alongside our own editorial content due to the sponsored contents educational, musical, or entertainment value. Move the feet and stand it up on one end to make a great looking rig which also. Easy improvements to embrace the stock jca20h is an easy amp to navigate and use. The manual says fixed bias, but eurotubes told me that was not correct and i would have to bias this head if i were to change powertubes. Jca22h musical instrument amplifier pdf manual download.
I called jet city and they havent returned my call and always go to voicemail. Jet city amplification jca20h 20w tube guitar amp head. Massive thank you to jet city amps for sending me this incredible amp to demo. I also purchased a bias probe from eurotubes, and biased it up to 70%. Save money on used jet city amplification gear at guitar center. Jet city jca20h features 20 watt head pairable to a 16 ohm or two 8 ohm speaker cabinets 3x 12ax7 preamp, 2x el84 power tubes and a solid state rectifier preamp, bass, middle, treble, master, presence controls multiply, voidfree hardwood cabinet with 16 gauge, coldrolled steel chassis multitapped power transformer and standard iec connector. Elegance of design both inside and out deliver unflinching reliability in a guitar amp goodlooking enough to make a girlfriend jealous. In which we dive headlong and headstrong into a control group comparison between two jet city jca20h amplifiers one stock and one. Jet city took the legendary jca20h and added a second, footswitchaccessible overdrive channel, along with a tubebuffered, serial effects loop.
Soldano and thd essentially are working together, thd on the picovalve, mike on the bigger models. Service manuals, schematics, eproms for electrical technicians. I tested the jca20h with my marshall 1960a speaker cabinet with 12. I usually steered away from jet city amps bc i tried the old 20watt head and i thought it sounded like a cheap distortion peddle. We liked the way it sounded so much, we decided to put it into production.
We tested the characterful and very affordable 20watt amplifier head from jet city. Heads free delivery possible on eligible purchases. Jca24s is a good mate for either jca20h or with jca100h. Jet city plays in the latter category with its alltube amps sold at prices terrorizing all competitors. Amelia jet citys longawaited guitar amp is here at last. I decided it would be sweet to start a jet city jca20h owners thread. 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. Jet city amplification jca20hv owners manual thank you for your support.
The combination of tubes in this great amp, as well as the controls it supplies, allows you to get everything from super cleans to raunchy gains, and for a very affordable price. Jca20h block diagram jca20h block diagram titel size a3 model no. The jet city jca20h tube amp head delivers pure tube tone from a single channel amplifier with absolutely no gimmick features to dilute the alltube signal path. We took the legendary jca20h and added a second, footswitchaccessible overdrive. Easy enough to reverse if it didnt work, but it did.
Jet city amplification jca20h owners manual pdf download. Jet city changed the vertical variable resistor design so it can only be adjusted from inside the device versus the old style where you could move it with a thumbnail. Jet city jca20h 20 watt valve head guitar world queensland. I tested the jca20h with its matching jca12s cabinet, which includes a single 12. There is a similar thread on harmony central, but it is more focused on mods.
Jul 24, 2011 the inclusion of a loop would be a betrayal of the amps central philosophy, and if you really need reverb or delay after the jca20hs preamp distortion, your only real option is to add it at the mixing desk. Jet city amplification accepts no liabilities for any loss, which may be suffered by any person who relies wholly, are part upon any description. Pure, simple, and full of tube tone, jca20h delivers from a singlechannel amp with absolutely no gimmick features to dilute the alltube signal path. Jet city jca20h 20watt tube guitar amp head reverb. To open downloaded files you need acrobat reader or similar pdf reader program. Your jca20hv was designed by the worldrenowned tube amp designer mike soldano, in. They also inform us that mike soldano has joined their team, and he certainly knows a lot about amp design and manufacture. Designed by mike soldano himself the jet city jca20h is a single channel amp designed for a modern yet versatile tone. Jet city amps jca24s 2x12 extension cabinet with reverb. If you really know how to use a tube amp you can coax a hundred different tones out of it. View and download jet city amplification jca22h service manual online. The jet city amplification jca22h also has a global presence control that lets you add high end sparkle to both channels. It sounded good but from what ive read on the net, it can sound a lot better i had all the parts i needed for the depth control lying around, so i tried it.
Jet city amplification jca20h 20w tube guitar amp head guitar. Building on their jca20h singlechannel guitar amp, jet citys alltube 20hv features a revoiced signal path, depth control, and a postmaster effects loop. Other features include a tubebuffered serial effects loop, multiple speaker impedance outputs, and a footswitch input for switching channels on the fly footswitch included. In this video guitar worlds gear editor paul riario demonstrates the features of the jet city jca20h amplifier head. Jetcity jca20h sch service manual download, schematics. With the jca20hbes, jet city takes that concept a step furtherteaming with noted amplifier technician, builder and mod master dave friedman of rack systems to modify an existing amp in the jet city line, the 20watt jca 20h. As was mentioned in another thread, i got a jet city jca20h 20w head and a jca12s 1x12 cab last week. Jet city jca100h during the labased guitar boom of the late 80searly 90s, mike soldanos namesake amps were everywhere. All inquiries must be accompanied by a description of the problem. The jet city jca20h amplifier uses 3 x ecc83 12ax7 preamp valves and 2 x el84 matched power valvestubes. Bringing you the best jet city amplification deals in the uk from our online shop. Jet city amplifiers are all valve guitar amp from the creators of the soldano slo 100 tube. But first we added a depth switch and postmaster effects loop, and gave it a new. I know that my opinion isnt worth 2 cents and some people probably really like the old jet city head, but it just wasnt my cup of tea.
The jc are different from bugera in that the jc is designed by people who know their amps, and arent just reverse engineering other models. Jet city amplification jca22h service manual pdf download. Dec 12, 2016 amelia jet citys longawaited guitar amp is here at last. Preamp gain, bass, middle, treble, master, presence, depth switch. The simplicity of the jet city jca20h makes sure that the alltube sound is never compromised. Featuring 15 direct and 22 studio profiles we have captured the clean, crunch, rock and high gain tones direct from the head with a mesa boogie 4. It has cheap pots, jacks, and possibly transformers, but the resistors appear to be nice 1w beyschlag metal films, and board and caps look just like those in a real soldano amp. Jet city amplification jca20h 20 watt guitar tube amplifier. Nov 28, 2014 the manual says fixed bias, but eurotubes told me that was not correct and i would have to bias this head if i were to change powertubes. When famous guitar amp developer mike soldano is leading a fully new brand of affordable tube amps it is hard not to pay attention. Your jca20hv was designed by the worldrenowned tube amp designer mike soldano, in seattle, washington, and meticulously.
Massive discounts on jet city amplification heads, cabinets and combos. I have a jet city 20 and i am looking to change the power tubes to some jjs and the pre. Jet 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. I have a balanced 12ax7 in the v3 position, and a matched pair of el84s. Jun 15, 2011 since we first encountered jet city amps, the usa brand has been steadily building up its business in the uk, and with good reason. Jet city uses audiograde metal film resistors and highquality copper for all internal connections to maintain sonic integrity. Jet city jca20h tube swap discussion in amps and cabs started by ssites, aug 11, 2011. Elegance of design both inside and out deliver unflinching reliability in an amp goodlooking enough to make a girlfriend jealous. On the bench mercury magnetics jet city jca20h 20 watt. We took the legendary jca20h and added a second, footswitchaccessible overdrive channel, along with a tubebuffered, serial effects loop. Buy jet city amplification jca20h 20 watt guitar tube amplifier head. Jet city jca20hv demo with two marshall mg 4 x 12 cabs and a squier thinline telecaster. I know that my opinion isnt worth 2 cents and some people probably really.
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