All user reviews for the JJ / Tesla ECC83 S

One of the many 12ax-7 I tested on a combo Fender Hot Rod Deluxe, but also a head Marshall Class5. And one that made me less enthousiasm.
I have not apprci aggressive drive ct or more drive, the o many other lamps (GT, Ruby, or even Sovtek TAD) are more or imbalances their lack of character in clean, channel with which I find them too flat. This is always "less worse" than the Tung-Sol that dfinitivement not the case -in any case in these two narratives amps, but I can advise in these configurations, fewer seek this type of sonority.

I note "means" not "bad" because I did not RALIS enough trials to allow me. I guess these JJ operate very well on some kind of amps.

I think JJ product good enough lamps in all but this one, I transferred all my amps, current and past.
To me, his record is without relief or dynamic, flat and dark. The clean and shiny Fender sounds, JJ ECC83s the hurts, the beautiful crispy distos that in acute Marshall, it's not for her either. It costs almost nothing but worthless. There are better for the same price, although I can not advise anything, because I do not use that NOS preamp. This is probably the low cost which explains why it is found in many new amps.
I say after trying a very large amount of current and former tubes ECC83/12AX7 and say that I know a good end amplification tubes.

Recently installed (one month) on my Crate BV 120 to replace the groove tubes 12ax7R, I'm not disappointed with the trip!
While the origins lamps were rinsed, and the amp has a naturally aggressive that these lamps are not contrived, huge qualities of these JJ felt his, her rounder, more open, a gain not too tight, but well this thick, they are perfect for an amp too "bright". They do not turn a brilliant dark amp amp, but they just correct it takes they readjusted.
Some people recommend for amps that can not be softened, so I think these are lamps for use in a specific context like me if we met 4 of 4! But frankly, coupling with other lamps, it must have an interesting impact.
Finally, I must admit that even playing with the gain pushed to 7, there is breath, but not too much, nothing embarrassing live anyway.
In my personal case, it is therefore 4 of these mounted lamps with JJ 6L6 GC power, everything works very well, I have a friend who did the same thing on his triple mesa correct, and it is equally delighted!

This review concerns only two case and does not purport to judge the absolute quality of this type of lamp, probably satisfactory in other configurations.
Tested on the floor of a preamp combo Fender Hot Rod Deluxe and a U.S. Marshall Class 5 head, that JJ has not convinced me, far from it, compared to similar models from other brands.
On the Fender, I find insufficiently defined clean and acid drive. Of course, according to HP's, some differences may occur. But in my case, with HP's such as Eminence Governor and Man O War and Jensen C12Q and C12N, DD is not at the party and an aggressive tone trend I do not like.
On the Class 5, I find this trend but less pronounced in view of the character and tonal balance "darker" this head clean, conversely, in Crunch it accentuates the bright side too and incisive. It may prove interesting on the other hand when connecting the HP to the headphone output of the Class 5 because then you lose a lot of treble.
In short! JJ is very, very far below other brands (Groove Tube, TAD, Sovtek, Ruby) in terms of balance and overall return on these two amps.

And by the way: do not confuse "need review" with "opinion with which I do not agree"!

It replaces an electro harmonix in stage drive (v2) of the peavey classic 30. Less linear than e. H. it boosts a little lower midrange. For 9 euros (musikerkram.de) the price / quality ratio is good.
There are currently no reviews for the 5751 Tesla dd I put in v1 so I question a bit here.
Before it was v1 and v2: electro harmonix 12AX7 and Sovtek lps v3. When I went on the drive channel sound lost bass and treble.
Now it is v1: tesla 5751, v2: ECC83s, v3 Electro Harmonix 12AX7 and the drive channel sound balance keeps clear sound.
The 5751 provides a more progressive course of gain on the clean channel. For those who do not know the classic 30 was little or no sound until two and suddenly, bim! Long live in, no problem but appart 'is just 2 I play. This sounds like the lamp ECC83s but easier dose low earnings and the sound is clear longer (more headroom). If you never push your amp background or has too much fishing, this is the lamp for you. If you want to saturate faster, go your way.

Equivalent 12AX7, this lamp has a good gain.

Predominance in the lower mids sound and serious, this tube will heat a roundness and its too bright or garish.

I use it instead of the cathode follower (drive of reverb and tone stack) sometimes on a floor or clean crunch to bring him round if I find it too loud.

A Good tube which I never had a problem with microphonics by some easily lead against the breath on the floors of distortion.

I use this for jazz, blues, or to "darken" the sound of an amp with too high treble that will easily screaming.

However I strongly discourages the amp "dark" or if you want a sharp distortion, because the lamp quickly sift the aggressiveness of a distortion.

Also I would not recommend to mount a receiver complete with lamps that since this causes a big loss of momentum and shine.

Finally a good lamp, but used in specific situations.

I use DJ for 1 year in one of my Laney GH50L. Today I Retube my two heads with JJECC83S dn V1, V2, V3 and V4 in 12AX7EH. Distortion in the ct a little too bright of a sound gives way Laney o mediums are ProMinent. Well, now, this is a combination that suits me (I play almost no light in his), but objectively, they are loupiotte trs sharp and the background noise is more than acceptable (the ADP origin are the just in case, but that's it). However, if you are looking for high gain bxs, must look elsewhere. I found my personal happiness. I recommend it without delay! "9" because I know I still express, mix with other lamps preamp.

<img class="smiley" src="/images/audiofanzine/interface/smileys/icon_biggrin.gif" alt="biggrin" /> How long have you use it?
- For two months I turn on my mesa with a dual grinder trmoverb, except total JJ power tubes!

Have you tried many other models before acqurir?
- Uh yeah, just be a little too ... (Sovtek, EH, MSA ...)

What is the particular feature you like best and least?
- So the JJ is a little spcial I quip in hi-gain JJ on V1, V2 and V3 of the standard V4, and V5 and a phase inverter in V6. Is the gain in this config but the sound is not "if standard" than that, compress it a little deaf, vintage. Personal I like because it sounds like a supercharged Recto seriously.

How do you report qualitprix?
- Think a forget to buy in France, it's really too expensive. 20 average and the more they are not sorted if there is a need from your vendor. You have $ 11 in Eurotubes.com, he gives great and fast (5 10 days) and advice is excellent.

Exprience with, you will do again this choice?
- Definitely

I use this loupiotte for 1 year on two animals: a head with Peavey 6505 + V6 (clear channel), and V1 preamp Lag Spitfire TL1.

This lamp is used to add roundness to the sound too straight and shiny. Its gain is relatively mild, so that the lamp is not designed to add power and dynamics but to add more color to the sound. Ideal for clear sound (with nice mids) as it helps smooth (smooth) attack too frank. It will be comfortable coupled with other lamps more nervous as the Tung Sol 12AX7 (V1 on my Peavey head) or the Electro-Harmonix 12AX7EH. From experience, a head 6505 full JJ ECC83 tube is singularly lacking in power. The grain is superb, but its lack of dynamics. A couple must with other more powerful lamps to keep the margin on the gain ...

Quality is at the appointment because the factory JJ / Tesla is reputed to produce lamps with constant characteristics over time. Moreover, little noise on these lamps (short plate) and good reliability.

Purchased by mail (www.passion-audio-tube.com) to 14.50 €, so great value for money!

Lamp highly recommended!