Love for the Peavey JSX?

I liked the amp when I tried it. I found it quite similar to the XXX distortion wise. I played the JSX through a Krank cab w/Eminence speakers. Every Peavey amp I've owned or played sounded better through a different cab. It's the speakers, they ought to break down and load Celestion or Eminence. Evidently they sell enough units to think otherwise though. As with most Peavey gear, not a lot of thought given to it in this realm. Their gear is rugged and dependable but no resale value and not always on top tone wise. Good buy for the $$ though. A Wolfgang is the only piece of Peavey gear I've ever seen get a decent used price.
BTW, Peavey is the only major music brand/corporation with no debt. They do something right.

 

Peavy makes great products. The JSX didnt flip my switch however. I wanted to like it...but there was NO fattness to the sound at all in the one I tried. Thin and brittle. Very midrangy.

 

I havent tried the JSX, but Fuzzy after your post I just might in the near future. The problem with Peavey (as Hamertoe pointed out) always seems to be the speakers. Peavey himself did an interview with GP (or GW cant remember which) and he said when they first started out, the speaker companys were giving him a really hard time because the customers kept blowing up PA speakers when they used Peavey products. Fingerpointing resulted and Peavey just got tired of it, so he said "screw em" and decided to make his own speakers. I dont remember why they were blowing up.

I'm old enough to remember when Peavey first came out, and yes, they developed a bad rep early because of that issue. Cheap products that a musician could afford, but not reliable. Then over the years Peavey went the other way (my opinion only) and started making reliable cheap products that sounded like dogs passing gas. Now after many years they might be coming out into thier own a bit finally, with some good sounding stuff. But once again, it's a speaker issue that seems to dog them around.

Bottom line for me, I might try a JSX, but I would also want to try it with a different cab than just the Peavey cab.

 

I haven't tried one, but I had a XXX for a day. Definitely agree with others, thing sounded like a chainsaw, which is good for about a minute, but if you wanted something more subtle, forget it!

Anyway, Peavey is one of the best bang for the buck companies out there, and deservedly so. Glad you're happy with your amp, that's the goal.

P.S. - There's a reflection from one of your pedals on your speaker grille, I wouldn't think the speaker grille would pick that up.

 

I also have a JSX. I am running through a Marshall 1960A 4X12 that I have had for several years. I am running the cab mono at 16 ohms. The speakers are the GT-75's.Preamp tubes really make a difference in this amp. I am running a Mullard in V1, Sylvania in V2, and a JAN Philps in V3. That seemed to give me the best of great sounds from the amp. The Stock Electro Harmonix preamp tubes seemed to make the amp buzzy. I really like that the amp is very sensitive to input. Switching pickups, coils, and volume make drastic changes in tone and how the attack sounds. The Ruby EL34STB's sound really nice in this amp, the SED EL34's also sound really nice as well. As for the active, EQ which is only on the two gain channels, is very sensitive and you really can dial in almost any sound.

The resonance and presence controls really are nice, they don't add any mud, but really help adjust the lower and upper end response with out altering the tonal structure.

The JSX retubed with quality tubes and a good cab is a great amp for the price and features.

 

V2 makes a pretty big difference in how the gain channels sound, I was actually suprised by the difference. I expected a sutle one, but changing V2 really change of the gain channels were the voicing. V1 also of course makes a difference. My JSX came with the crappy Electro Hamonix EL34's, which were not even close to being matched. I yanked them and tried the SED's and Rubys. The SED's are more mid heavy and the highs are smoother. I like the Ruby's because they have a wider frequency response with out the mids being to heavy. I usually love SED's, byt like the Ruby's better in this amp.

I haven't tried the JJ's, but I found them to be too dark for my tastes in my other amps.

 

My recto smoked the XXX, IMO.

 

I sold that amp quicker than any amp I've ever bought. Grainy, harsh. Even a Mullard in V1 didn't help.

Too bad, 'cause with a few minor changes, it would be an ideal amp.

 

We've had two in the store and managed to sell both. We have another one on order, and although I'm sure we will manage to sell that one as well, neither of the two already sold, were sold with the matching Peavey 4 x 12 cabinet. (which is the XXX 4 x 12) Both were sold with Marshall 4 x 12's with the standard Celestion GT75's in them. To my ears, this amp sounds just plain awful with the Peavey cabinet, and although it sounds "better" through the Marshall cabinet, it certainly didn't sound anywhere close to "great" IMHO. I also feel that this amp is VERY guitar specific. I have heard it sound "OK" with a couple of Ibanez JEM guitars and one Ernie Ball Petrucci, but with a Les Paul? UUGHH!!
To my ears the whole exisiting Peavey head line (XXL, XXX, JSX) kind of blend together into one melting pot, and although the JSX is "slightly" better than the others, it does have a ways to go. I actually don't mind the now defunct 5150 (5150 II) and I hope the new 6550 maintains "that" sort of vibe. We have been told that the Penta could be shipped in early September, and I'm hoping that may actually be a good/great amp for Hartley Peavey as you have to give the guy "A" for effort, if not for anything else. I also hope for good things out of the Valve King as well. At least the Classic 30 is now offered in a head version, as that head with the right speakers and cabinet might REALLY be something.

Chuck

 

Actually, when I first got my JSX head, I wasn't too impressed. Then I found that the stock power tubes, were biased way cold and on top of that they were not even close to being matched, more than 12 ma apart on some. I also replaced the pre's with good NOS tubes.

Most amps that the big OEMs put out there are not even close to being set up, and biased properly.

Sounds much different on the much better side. The amp came with Electro Harmonix tubes.

As for pickups, I use Seymour Duncan JB's.

I run the gain on the crunch channel at 5 and on the Ultra Channel at 4.5.

This been said, the Peavey stuff isn't for everyone.

 

I never checked the bias on the power tubes. 12ma apart is REALLY bad.... sheesh .... that may have accounted for the cold harsh tone for sure. Even if it is 'budget Peavey', no one should be required to tinker with *ANY* brand new product like that...

 

Yea, it was like they just grabbed tubes at random and stuck them in there. Basically many of the OEM companies order "matched" tubes from the supplier, and as we all know that is probably the best way to get un matched tubes. Amps like, Mesa, Bogner, and and all the other great small amp companies. (I wouln't consider mesa small) usually do a nice job of biasing and setting the amps up with matched tubes.


The JSX by far isn't the greatest amp out there, but is pretty good considering price point etc features.

What is really funny, is back a year ago when everyone was blowing screen resistors in the XXX series running JJE34L, Peavey said that the E34L tube from JJ was a bad quality tube, and JJ's were nothing special, and that that was the issue. Of course they forgot to mention that 100 ohm screen resistors in a EL34 amp are a little on the low side. Well they changed the screen resstors to 700 ohms. And now use JJ as the OEM tube for all there amps. I find it funny they now use a tube company that they originally blamed for their amp problems. Not that I am a big JJ fan by any means.

 

FWIW. I have a prowler that i bought when i was in an emotional rut. Since i couldn't sell it. i had it modded to run on EL34's. I swapped out the speaker for an emi GB128, pre tubes to NOS RFT's and power tubes to "C".

Killer back up amp. Not ashamed (anymore) to use it for smaller applications.