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View Full Version : Jet City JCA20H Owners Thread



guitarmadman85
July 9th, 2010, 07:36 PM
I decided it would be sweet to start a Jet City JCA20H owners thread. There is a similar thread on Harmony Central, but it is more focused on mods.

I have re-tubed with JJ Tubes from eurotubes. I have a balanced 12AX7 in the V3 position, and a matched pair of EL84s. I also purchased a bias probe from eurotubes, and biased it up to 70%.

The tubes and the bias took a really good sounding amp and made it great. The gain is much more focused, and less muddy in the lower range. It really helped to smooth out the highs too. Everything is much more clear, in a good way. I can crank the gain up to 9, and it still sounds great and holds together well. The bias really helped the responsiveness of the amp, and made everything smoother. Biasing it up really helped it sound better at lower volume too. Before I was never really happy with high gain sounds at home, but now it plays much better and I am much happier.

Next order of business if to buy a new metal front baffle for the head, and a black baffle for the matching cab, and then a weber mini mass attenuator.

bcdon
July 10th, 2010, 02:10 PM
About how much did all those mods run you? How long did it take to complete? Thanks!

guitarmadman85
July 10th, 2010, 03:49 PM
I ordered the JJ tubes from eurotubes. For 3 12AX7s, one of those balanced for the phase splitter, and 2 matched EL84s it was $50.00.

I also ordered the bias probe from eurotubes, but it is actually made by Weber. It ran me about $50.00 as well. I already had a volt meter that would work with the probe.

I haven't bought the baffles yet. They are on sale from Jet City. They have a store on their website where you can pre-order them, but they won't be in until sometime is August. The black metal baffle for the JCA20H runs about $15.00, and the black tolex baffle for the cab runs $10.00 I believe.

The tube change and the bias didn't take more than about a half hour to an hour. I spent quite a bit more time than that researching everything.

The attenuator is separate, but Weber makes some of the best sounding in the business, and by far the most affordable. I have owned their mini mass before and loved it, it just wasn't rated at enough power to handle the amp.

marnold
July 19th, 2010, 07:38 PM
I've been on vacation since the 4th so I didn't see this thread until now. I really like my Jet City. I've toyed with the idea of retubing it but I think I'm going to hold off for a while. I want to get a metal baffle for the front those so I can see the tubes glowing. Gotta love the blinkenlights!

marnold
July 25th, 2010, 02:43 PM
By the by, the Jet City store (http://www.jetcityamplification.com/store/) is open. They offer replacement baffles, covers, and now "JetPacks" which is the JCA20H head with different tubes, mods, etc. I don't know that the mods are necessarily worth the extra that it costs, but it's nice that it's available anyway.

marnold
August 4th, 2010, 01:54 PM
Next order of business if to buy a new metal front baffle for the head, and a black baffle for the matching cab, and then a weber mini mass attenuator.
Well, I just ordered the metal baffle for my JCA20H (https://www.jetcityamplification.com/store/baffles/metal-baffle-for-jca20h/). I debated about the black baffle for the cab, but I thought that the blue thing makes it look unique. I mainly want the metal baffle so I can see the tubes a-glowin'. Free shipping, even!

hooch1
August 4th, 2010, 02:22 PM
I bought the combo (JCA2112RC).

So far I really like it. I first bought a Peavey Classic 30 since it is very highly recommended but I just wasn't feeling the tone. Not a bad tone, just not sure if its for me. I was going to get a Tweaker until I saw these on sale and the coupons brought it down under $300 so I jumped on it.

So is JJ the recommended preamp tube type? I currently have a Tung-Sol, standard Solvtek and a Solvtek LPS (PI position) that I was going to put in the C30.

marnold
August 4th, 2010, 02:54 PM
So is JJ the recommended preamp tube type? I currently have a Tung-Sol, standard Solvtek and a Solvtek LPS (PI position) that I was going to put in the C30.
Hi Hooch! Welcome to The Fret. I've heard a number of people recommend JJs for these amps. You might want to check the discussions on Jet City's Facebook page (http://www.facebook.com/pages/Jet-City-Amplification/101733997528).

How do you like the reverb? I sometimes wish that the head had it.

guitarmadman85
August 5th, 2010, 10:09 AM
I know that when you buy the "Jet Pack" JCA20H, with the improved "tube cocktail," they give you sovtek preamp tubes and JJ power tubes. I have never used sovteks, but I would be interested in seeing how they affect the sound. I really feel like the JJ power tubes, biased at 70%, helped the amp the most. It just sings now. I am going to be getting a metal baffle for the head as well. I'm just waiting to make sure everything works out to pay for school in a couple weeks. I have also debated on the black baffle for the cab.... I'm still undecided though.

hooch1
August 5th, 2010, 10:10 PM
Hi Hooch! Welcome to The Fret. I've heard a number of people recommend JJs for these amps. You might want to check the discussions on Jet City's Facebook page (http://www.facebook.com/pages/Jet-City-Amplification/101733997528).

How do you like the reverb? I sometimes wish that the head had it.

Actually, I think the tube reverb is really good. I don't have a lot of experience here but I like it better than the Classic 30's reverb.

marnold
August 14th, 2010, 03:39 PM
Not for nothin' but I noticed that Musician's Friend has the JCA20H and the JCA2112RC combos on sale with free shipping. Basically it makes them the same price they were originally selling for before the ~10% price increases went into effect a while back.

Head: http://guitars.musiciansfriend.com/product/Jet-City-Amplification-JCA20H-20W-Tube-Guitar-Amp-Head?sku=583597
Combo: http://guitars.musiciansfriend.com/product/Jet-City-Amplification-JCA2112RC-20W-Tube-Guitar-Combo-Amp?sku=583601

Their 1x12" and 2x12" cabs are also on sale.

As an aside, there is a review from a "Woody" on there for the JCA20H. I couldn't disagree more with him, although everyone is entitled to their opinion. Some Jet City owners have commented that these amps seem to "like" humbuckers more than single coils. I personally like humbuckers more than single coils, but the amp itself seemed to sound just fine with my old Squier '51 and its nondescript pickups.

hooch1
August 14th, 2010, 09:59 PM
Not for nothin' but I noticed that Musician's Friend has the JCA20H and the JCA2112RC combos on sale with free shipping. Basically it makes them the same price they were originally selling for before the ~10% price increases went into effect a while back.

Head: http://guitars.musiciansfriend.com/product/Jet-City-Amplification-JCA20H-20W-Tube-Guitar-Amp-Head?sku=583597
Combo: http://guitars.musiciansfriend.com/product/Jet-City-Amplification-JCA2112RC-20W-Tube-Guitar-Combo-Amp?sku=583601

Their 1x12" and 2x12" cabs are also on sale.

As an aside, there is a review from a "Woody" on there for the JCA20H. I couldn't disagree more with him, although everyone is entitled to their opinion. Some Jet City owners have commented that these amps seem to "like" humbuckers more than single coils. I personally like humbuckers more than single coils, but the amp itself seemed to sound just fine with my old Squier '51 and its nondescript pickups.

Well I agree with you but I think part of the problem is the owners manual which recommends humbuckers. They probably should not have done that.

marnold
August 19th, 2010, 04:45 PM
My metal baffle came in! The original blue one was in there VERY tightly, but it eventually came out. Here's a few pics:
With flash in the light:
http://lh6.ggpht.com/_OT7l0dXu4To/TG2tMBPkVSI/AAAAAAAABAU/61D_kqPMy6U/s400/IMG_0852.JPG

Sans flash in the dark (You can make out the EL84s very clearly, it's a bit harder to see the 12AX7s. Two are on the left and one is between the EL84s.):
http://lh3.ggpht.com/_OT7l0dXu4To/TG2tXzjW2EI/AAAAAAAABAY/5gQ2bCxBPIg/s400/IMG_0853.JPG

New family photo:
http://lh6.ggpht.com/_OT7l0dXu4To/TG2tnawfbkI/AAAAAAAABAk/pfM77W_K1EE/s400/IMG_0854.JPG

Kazz
August 19th, 2010, 05:18 PM
Rev I would say the metal grill is a major improvement on the looks of that amph. It looks like a serious rocker now. Can't say I cared much for the blue front on it before.

marnold
August 19th, 2010, 07:23 PM
Rev I would say the metal grill is a major improvement on the looks of that amph. It looks like a serious rocker now. Can't say I cared much for the blue front on it before.
The blue never bothered me and, after all, the tone's the thing (to paraphrase Shakespeare). But the black metal grill is definitely metal, figuratively and literally. And I can see my tubes doing their thang! Now looking at the pic, a black baffle for the cab probably would match better. Not a biggie. My guess is that they'll still take my money at a later date :)

I emailed them about this and got a reply within 24 hours again. I've been really happy with the service I've gotten from them.

marnold
September 5th, 2010, 02:38 PM
I thought this might interest some metalheads on here. Someone posted this on Jet City's Facebook page. The guitar has an EMG-89, the signal goes into a TS-808 clone with the level dimed. It then goes into a JCA20H and JCA12S cab. Pretty doggone heavy.

http://dl.dropbox.com/u/1809705/JCA20HRoseOfSharyn.mp3

Perfect Stranger
September 6th, 2010, 04:27 PM
I have the JCA-2112RC combo. The only thing I've done to it is change out all the knobs on it for chickenhead knobs in different colors.
I have a red one for PreAmp/Gain, blue for Master, and black for all the rest. The reason for this change is it pretty much let's me change
the settings for individual knobs without looking directly down at the knobs. I can tell by feel. The colors are more for preference. I'll probably
get around to changing out the tubes for JJ's from Eurotubes.

http://i37.tinypic.com/2m76dmu.jpg

marnold
September 6th, 2010, 09:05 PM
Sweet, PS! How long have you had it?

I'd be interested in your thoughts on the tube change when the time comes.

Perfect Stranger
September 7th, 2010, 08:07 AM
I've had the combo for a little over 2 months now. Am loving it so far.

marnold
October 8th, 2010, 07:19 PM
American Musical has the combo for $299 now--and they ship to Canadia!

http://www.americanmusical.com/Item--i-JET-JCA2112RC-LIST

bcdon
November 4th, 2010, 06:56 PM
I have a major GAS attack coming on so am thinking about selling my Jet City 20 Head + Jet City CAB. I bought it last year and it has very few miles on it (less than 20 hours). Any body interested? It would be a fair price for fellow fretters.

Cheers,

don

Eric
November 5th, 2010, 10:19 AM
I have a major GAS attack coming on so am thinking about selling my Jet City 20 Head + Jet City CAB. I bought it last year and it has very few miles on it (less than 20 hours). Any body interested? It would be a fair price for fellow fretters.

Cheers,

don
My bank account says no, but I'll bite anyway. What's a fair price?

More importantly, what's your GAS attack?

bcdon
November 5th, 2010, 10:38 AM
My bank account says no, but I'll bite anyway. What's a fair price?

More importantly, what's your GAS attack?

Glad you asked. :-) I bought it last Christmas for $500 and some change, is $300 + shipping fair?

EDIT: Since I know you are a frugal man, Eric, how about $250 + shipping for you. :dude

Eric
November 5th, 2010, 11:31 AM
Glad you asked. :-) I bought it last Christmas for $500 and some change, is $300 + shipping fair?

EDIT: Since I know you are a frugal man, Eric, how about $250 + shipping for you. :dude
Geez, that's an awesome price. I'll give it some thought.

bcdon
November 5th, 2010, 12:12 PM
Geez, that's an awesome price. I'll give it some thought.
Take your time.. you get first dibs.

ZMAN
November 5th, 2010, 12:39 PM
I just saw the head alone up here on a used board for 430 Firm. So that IS a decent price.
I just bought a super Champ XD or I would be next in line.

Eric
November 5th, 2010, 01:06 PM
Take your time.. you get first dibs.
I thought about it and I'm going to pass. I do appreciate the excellent offer, but I'd probably have to ditch something if I bought that amp, and I don't think that would help me right now.

Good luck with the sale!

marnold
November 5th, 2010, 02:52 PM
I just saw the head alone up here on a used board for 430 Firm. So that IS a decent price.
I just bought a super Champ XD or I would be next in line.
$430?!? Brand spankin' new ones are $299!

bcdon
November 5th, 2010, 03:58 PM
I thought about it and I'm going to pass. I do appreciate the excellent offer, but I'd probably have to ditch something if I bought that amp, and I don't think that would help me right now.

Good luck with the sale!
No worries. I'm still going to blow some money (tomorrow, if I'm lucky) on something I don't need but really, really want. I'll post a thread if I end up caving into GAS. Good thing the wife is out of town. ;-)

bcdon
November 5th, 2010, 03:59 PM
I just saw the head alone up here on a used board for 430 Firm. So that IS a decent price.
I just bought a super Champ XD or I would be next in line.
Hey ZMAN, I'm up here in the Great White North too, so shipping would be much easier to you. ;-)

ZMAN
November 5th, 2010, 05:29 PM
$430?!? Brand spankin' new ones are $299!
Maybe in the US. But not up here in Canada.
http://stcatharines.kijiji.ca/c-buy-and-sell-musical-instruments-amps-pedals-Jet-City-JCA-20H-20-WAtt-Head-W0QQAdIdZ240096274
I am pretty sure it is a dealer as well. Probably 1/4 of a mile from where I live.

ZMAN
November 5th, 2010, 05:32 PM
Hey ZMAN, I'm up here in the Great White North too, so shipping would be much easier to you. ;-)
Hey Don I realize it would be a good deal but I am really liking this Super Champ. I hardly play any of my other amps, and I have a pretty good selection. Also I already have 6 amps and no room. I have them stacked in my music room. The funny thing is the Super champ XD is modelling a lot of the amps I have, and doing a pretty damn good job. LOL

bcdon
November 5th, 2010, 06:33 PM
Hey Don I realize it would be a good deal but I am really liking this Super Champ. I hardly play any of my other amps, and I have a pretty good selection. Also I already have 6 amps and no room. I have them stacked in my music room. The funny thing is the Super champ XD is modelling a lot of the amps I have, and doing a pretty damn good job. LOL
No worries. I don't have much room myself and since I haven't played the Jet City that much (I really dig my little Vox VT30 models) thought I'd get rid of it. I'll put it up on CL sometime, no hurry really.. Cheers! :dude

marnold
November 5th, 2010, 06:55 PM
Premier Guitar has a review of the JCA20H with the Brown Eye mods. I'm not sure that it's worth the upcharge, to be honest, although it does sound cool with the saturation switch on.

http://www.premierguitar.com/Magazine/Issue/2010/Nov/Jet_City_Amplification_JCA20H_BES_Friedman_Mods_Am p_Review.aspx

marnold
December 6th, 2010, 06:40 PM
Source Distribution (UK) is now carrying the Jet City amphs and posted a bunch of demos. Some of the best I've heard, actually.

http://www.youtube.com/view_play_list?p=A63A0E39B8933EF6

marnold
January 16th, 2011, 07:16 PM
Umm, erg, wow. Jet City announced the JCA22H head. 20W, two channels: crunch and SLO, plus a tube-driven effects loop. All for $399. I'm going to have to try one of those even though I'm really happy with my JCA20H. I need more details!

EH24fwciN64

OD4N0vundGQ

Robert
January 16th, 2011, 08:10 PM
I went to their booth a couple of times and tried to talk to them. However, they were super busy, so I gave up waiting.