You can't access all off the effects/prefects on the pedal if the tube is not in it. The reason some presets don't work without the tube in is because those are the ones that need a tube to work. Some don't need a tube.
Years back a repairman said, online, the tube did nothing. My 15vt does take warmup time, but I'll have to try it without the tube too. The amp is still quite nice. Thanks for the vid.
It is called STARVED PLATE 12AX7 Preamp usually running at 45v (instead of the standard 100v). The LED is just for aesthetics coz 45 volts isn't enough to make the 12ax7 glow as it should on 100 volts... It definitely has an effect on overall sound since it adds tube warmth to the audio signal path. The preamp is still purely Analog BUT filtered by the 12AX7 tube. Sort of blending the tube warmth to the analog audio signal if you get I mean...
Oszyby: as you certainly know, 12AX7 as other tubes of the same "dual triode" family have fairly dim filaments. As a comparison, the 6V6s in my CUB10 are wildly hot. The LED in itself is not faking anything, it is just highlighting the tube. This is called aesthetics. I am fairly certain the filaments are correctly fed at about 12.6V (6.3V) in series (parallel). You can check with a DVM. You should read 12.6V between pins 4 and 5 of the socket, or 6.3V between 4-9 or 5-9. So what is the point?
I know nothing / very little about electronics - but my ears tell me the Tonelab sounds warmer than any multieffects unit I've played through (quite a lot). I have the LE.
The LED is just a gimmick indeed. The valve is not. A tube in a starved plate circuit doesn't get hot enough to light up, but some people would expect it to do so. It's kinda cheesy, but I've seen that in other products. The tube is obviously not doing what it would do inside an actual amp. But it is not just hanging there, either. It adds a dynamic and somewhat scratchy dirt. As I told you, in the old blue desktop version, you can even control that dirt independently.
lo que muestra en el video no usa las distorciones solo usa el clean y algunos efectos, yo probe de sacar la valvula y no funciona ninguna distorcion, a parte te das cuenta que la valvula funciona porque cuando la encendes la pedalera el volumen sube gradualmente.
Not every effect on it is a "Tube effect".....the tube IS necessary for the sounds meant to be tube emulated sounds, which is what is supposed to happen. It models Tube sounds, not by electronics but, by using an Actual tube in the chain so as to achieve a more realistic tube sound. It is what it's supposed to be...
Well if everyone cannot get the fullest potential out of this unit, but want to stick with preamps for their sound, you might want to add to the Vox tonelab one of these "SansAmp Character Series" for their final out put, they are like real analog tube driven simulated amps, then you will have the complete setup without having to deal with Tube amps. There are a variety of them
yo Adrian the 12ax7 is a pre amp tube used for distortion and drive the patches you examples have no distortion or drive in them. now if this tube were a power tube and the unit still worked then you have a vidio.
I dont`t get the point is of this video. Everyone that knows a little bit about tube circuits knows that manufacturers use LEDs for a tube glow on low voltage tube cercuits. Be happy that all the crunch and gain sounds seem to use the tube! Sound is all that matters. And for the price this thing sounds quite good.
La válvula funciona perfectamente, excepto con los sonidos limpios, con los cuales no actúa. Si os fijáis bien los que tengáis la pedalera veréis como la válvula se pone incandescente poco a poco (oscurecer la habitación para verlo). También se nota en el sonido, que va cogiendo volumen poco a poco. En el tono no soy capaz de notar si colorea o no como lo hace un ampli a válvulas, pues nunca he podido comparar ni escuchar uno... Por ir lo demás suena de lujo. Toqueteandola mucho he conseguido sacar el mismo tono que el de sweet child o mine... Y con el mismo me refiero a literalmente el mismo.
i have one of these and i was of the understanding the tube is used in the power amp stage not in the pre amp. I thought all the tones this thing generates are digital.
BTW, if you change the tube, you'll notice the sound also gets slightly different (e.g. you can get more headroom). Just to clarify: I'm not saying the tube operates some kind of miracle or anything. It is part of a much larger circuit, and most of the tone comes from the DSP. But it is not just a useless piece of glass sitting there. It does play a role, even if it has nothing to do with the "real tube tone" some expect when they "listen with their eyes" (and yes, the LED is for those people).
off their webpage about the ST: "True-tube Valvetronix power! The power amp circuit features a 12AX7 triode vacuum tube for undeniable tube tone" it does nothing to the tone at all!
I do belive that they put it where it is for looks but it does play a roll in the overall sound of some presets, if you have ever opended it up to look the tube is actually tied into alot of different things, its like a mix between ss and tube with a pan knob. kinda like there valvetronix amp look up the wireing digram it makes no since lol
All of the chosen presets ( 70, 87, 88, 92, 98) use "Clean CST" amp model [please refer to the operators manual]. Here is the description of this 'amp model' from the manual: CST (Custom) "This models only a four-band tone control that produces an undistorted, pure, clean tone. The GAIN control is disabled. ... " It is not an 'amp model' ! So it is not surprising that the tube/valve is not involved in those presets. I have made the test with TL LE : no valve, no sound
VOX are far not the only ones who highlight their vacuum tubes with LED. I suppose that at least half of todays brands do that for an aesthetic feel. But you can't omit the fact that the tube actually works. In fact, this video shows that one cannot use amp modelling without the valve. Btw it's also impossible to use distortion/overdrive/fuzz etc. Only 1 clean tone is available along with some effects that for sure have nothing to do with the tube (like modulation and time-based effects).
LED is something many effect builders using starved circuits like to add. If you search for 'diy tube overdrive' in youtube, you will most likely find several tube overdrive pedals which's tube glows very brightly, or even glows with an odd color like white, blue or purple. That is because such a tube DOES NOT GLOW in a starved circuit. I have built some tube overdrives myself and witnessed that. Sound is great, but you dont got the 'correct' looks ;)
The Starved plate 12ax7 tube does NOT process the signal as a REAL Tube preamp (Ala Marshall Valvestate) does... But it just let some signal through the tubes just like a High pass filter does in order to emulate the Tube Warmth. So in theory by design, it should work without the Tubes but it will loose that extra MOJO!
Presets 70,87,88,92,98 all use the red Clean setting, whicht is just an uncolored EQ with no amp modeling. The fact that these presets still work after removing the tube do NOT imply it is just a gimmick. The fact that the other presets don't work is what shows the tube does have a role. The TL's circuit is obviously not comparable to an amp. The tube is used as a clipping device in a starved plate design. In the old desktop version, you can actually set the amount of dirt from valve reactor.
In a starved project, the tube is almost always working near the "knee" of its current-grid voltage characteristics. This part of the characteristics is highly nonlinear, hence it imparts distinctive distortion to the signal. Therefore, the sound *is* clearly shaped by the tube and in a very dramatic way. 5. A starved plate design however produces even and odd harmonics almost evenly. The "distortion quality" is rather harsh and not comparable to a "good" tube design.
I have the tonelab st and it has been acting up ie: most of the preset channels are dead. I have to double check but it seems like the only ones working are the ones you mention after removing the tube.... I can assume it's something with the tube's circuit now. I tried a different tube and same thing. I will try a 3rd tube from my amp but i think it may be something in the circuit not the tube itself.
I really liked your video. You gave insight in the very deceiful world of "marketing tubes". Have you had the chance to try the Vox Valvetronix VT+ amps? What do you think of them? Does the same thing with the Tonelab LE happens with the low wattage Vox VT+ amps? I mean, does the tube play a "aesthetic" role and doesn´t work the sound so you can really "feel" the tube warmth? I hope not to bother you... Really liked the critical thinking in your video... and the LED thing was outstanding...
@oszyby ... nice video. I would like to ask you. What do you think, how much beneficial is that tube for final tone. I used to use Zoom G92tt and planing to replace it with tonelab ...
I have a question, i really didn't get it. So without the valve the overdriven channels do not work? Only the preset that you played? they were all clean so I'm assuming that without the tube there is not overdrive. So what's making the sound distorted is the tube? I'm really confused, please explain to me. Thank you.
Hi do you still like the tonelab st even though the pedal works same with out tube? And have you found a set up on tonelab that achieves john mayer tone? Please reply here let me know john mayer settings for tone if you know em? Thanks
tonelab's tube serves as a power tube simulation.a real tube amp still distorts without power amp section.vox thinks the most impoert thing a in a valve amp is the power tube.this leads the tonelab series,and in the vox tonelab's amp series the 12ax7 is changed to power tubes like 6l6 or something.
I have some NOS GE 12AU7 in a project of mine and one of these has a very brilliant filament. However this is certainly not a requirement. After all, these are *not* lightbulbs, are they? 3. I don't see anything special in finding that the thingy there still works on some presets, namely those that *do not* sport any "high gain" feature. 4. It is likely that this product employs a "starved plate" circuit. Namely, the tube is employed at a much lower anodic voltage than the "official" one.
6. Point 5 remains of course valid if you are one of the audiophiles or nerds who would swear on the Stratocaster of Hendrix that they can clearly distinguish the second harmonic from *any* other harmonic present in a signal. Your mileage may vary. In conclusion, I don't see the message of this video.
Hey would be great if you could answer my question . I've brought this product recently n i'vr noticed at times the orange glow from the tube becomes so dim u can hardy see it , n after about 10 mins its back to the usual glow with no change in the sound of the tone !! Its happened twice so far , just wanna kno if this is normal ?? Has it happened to u ?? Should I get it replaced ?? also since its most likely that the LED is causing the bright light .
the filament of an ecc83/12ax7 runs with 6.3v, and the plate voltage, from 200 to 350 volts, if the voltage isn´t enought, the tube will not work anything, even the filament was working it could be using 1 amp or more, and its so difficult to get 350volts from DC current; that is the worst thing for the battery, then a led is used, so filament is not working, the tube doesnt work neither, is like a diode, if the voltage on a diode is under 0,7 volts its like not doing nothing
no it doesnt..u have to consider that what makes a "tube sound" is the signal of the tube going to the speaker..if u have the tube on this pedal going into a solid state amp, then the pedal-tube signal will go first thru the solid state transistors and then to the speaker..whick will again sound like a transistor amp...maybe a bit better? i dont know, i have never tried..but theoretical it shouldnt work...its a signal "path" thing..
I've been using a Tonelab ST for all my recording and live use - to my ears, it still has the best amp modeling out there for under $1000 - only idiots who don't learn to use it properly complain about it (they only use the presets and never learn to program it). This video fails to demonstrate that when you use the overdrive/distortion models, it doesn't work - meaning the tube actually serves a purpose!
1. What's wrong in back-lighting a tube as is done in *many* of the recent tube products? 2. Since the author of this video seems pretty proficient in electronics, he will certainly know that almost all the modern (and almost always of sub-par sound quality btw) incarnations of 12AX7 have barely visible heaters. In general, dual-triodes of the same class (12AU7, 12AT7, etc...) do not have particularly "evident" heaters.
Would you please show how Tonelab works without tube when you try to use the amp simulations. I bet you cannot. I think this video was just to get some attention. The LED is important for the looks, but you did yourself admit that the TUBE HAS AN IMPORTANT FUNCTION. So, why to put a doubt over this device?
LOL it is obvious, even if you have basic knowledge about how tubes work. All of those pedals and even hybrid amps are just for show. You need powered tubes to actually get that tube tone out of the pre-amps. Theres is no way a pedal adapter could power a pre-amp tube.
that's no surprise for me. In all those so called tube driven pedals, tubes are more or less all fakes. They all are made for those dump players, who think a tiny tube generates a real tube tone. This whole bunch of pedals work all with IC's, diodes, transistors and so on... If you wanna have tube tone, buy a REAL tub amp, that's it !!!
Wow! To me, it seems like they (Vox) are scamming us a bit regarding this device. That's concerning for me, because I was considering buying one of them (used). Thanks for the heads up!
That was a very dishonest of VOX...I say this because the window that lets you view the tube is by an LED..Why put the window in it to view a 12AX7 glow when when all you are seeing a LED backlight...The fact that VOX put the window in the tone lab to view the tube is criminal
A LED is a pretty harmless thing to be put in. It's just aesthetics come on! And concerning the tube: yes, it does produce the "high gain" tone which btw is likely NOT to be high gain but just distorted by the tube being in "starved plate" mode. And concerning the quality of the produced sound...mosquitoes. Any starved plate design is beaten hands-off by MOSFet or even diode-clipping distortion. And btw, the clean samples sported here sound 100% plastic. Awful unit, VOX!
incredible... i knew that vox was cheating about valves. But the LED to illuminate the tube, unbelivable. i tried with the one i own, it's the same. an orange LED illuminates the place where the tube is, and it works like a charm. Well, to be honest, the distortion patchs don't work without the tube. maybe they use it. it does'nt make this thing bad, it's a pretty cool multi effect, but stop cheating with false valves. by the way, you seem to be stoned on the video?
Criminal? Hold back your horses, dude. Even if it is almost surely used in a starved plate design, the 12AX7 produces a certain amount of heat which has to be dissipated. The grating serves this purpose. Since that tube has rather "dull" heaters, VOX has decided to backlight the tube with a LED for improved appearance. Is that criminal? If so, every person wearing a tie should put in jail for much the same reason.
You can't access all off the effects/prefects on the pedal if the tube is not in it. The reason some presets don't work without the tube in is because those are the ones that need a tube to work. Some don't need a tube.
Years back a repairman said, online, the tube did nothing. My 15vt does take warmup time, but I'll have to try it without the tube too. The amp is still quite nice. Thanks for the vid.
It is called STARVED PLATE 12AX7 Preamp usually running at 45v (instead of the standard 100v). The LED is just for aesthetics coz 45 volts isn't enough to make the 12ax7 glow as it should on 100 volts... It definitely has an effect on overall sound since it adds tube warmth to the audio signal path. The preamp is still purely Analog BUT filtered by the 12AX7 tube. Sort of blending the tube warmth to the analog audio signal if you get I mean...
Oszyby: as you certainly know, 12AX7 as other tubes of the same "dual triode" family have fairly dim filaments. As a comparison, the 6V6s in my CUB10 are wildly hot. The LED in itself is not faking anything, it is just highlighting the tube. This is called aesthetics. I am fairly certain the filaments are correctly fed at about 12.6V (6.3V) in series (parallel). You can check with a DVM. You should read 12.6V between pins 4 and 5 of the socket, or 6.3V between 4-9 or 5-9. So what is the point?
I know nothing / very little about electronics - but my ears tell me the Tonelab sounds warmer than any multieffects unit I've played through (quite a lot).
I have the LE.
The LED is just a gimmick indeed. The valve is not. A tube in a starved plate circuit doesn't get hot enough to light up, but some people would expect it to do so. It's kinda cheesy, but I've seen that in other products. The tube is obviously not doing what it would do inside an actual amp. But it is not just hanging there, either. It adds a dynamic and somewhat scratchy dirt. As I told you, in the old blue desktop version, you can even control that dirt independently.
lo que muestra en el video no usa las distorciones solo usa el clean y algunos efectos, yo probe de sacar la valvula y no funciona ninguna distorcion, a parte te das cuenta que la valvula funciona porque cuando la encendes la pedalera el volumen sube gradualmente.
Not every effect on it is a "Tube effect".....the tube IS necessary for the sounds meant to be tube emulated sounds, which is what is supposed to happen. It models Tube sounds, not by electronics but, by using an Actual tube in the chain so as to achieve a more realistic tube sound. It is what it's supposed to be...
Well if everyone cannot get the fullest potential out of this unit, but want to stick with preamps for their sound, you might want to add to the Vox tonelab one of these "SansAmp Character Series" for their final out put, they are like real analog tube driven simulated amps, then you will have the complete setup without having to deal with Tube amps. There are a variety of them
sans amp suck!
@@SZINNAPALM Nah - the Blonde and Other Amp series pedals are solid
yo Adrian the 12ax7 is a pre amp tube used for distortion and drive the patches you examples have no distortion or drive in them. now if this tube were a power tube and the unit still worked then you have a vidio.
actually, the tube is used for poweramp "simulation".... not as preamp at all...
@alexicaza This makes perfect sense. The tube is only needed for overdrive, so naturally all the clean settings will work fine without it.
I dont`t get the point is of this video. Everyone that knows a little bit about tube circuits knows that manufacturers use LEDs for a tube glow on low voltage tube cercuits. Be happy that all the crunch and gain sounds seem to use the tube! Sound is all that matters. And for the price this thing sounds quite good.
La válvula funciona perfectamente, excepto con los sonidos limpios, con los cuales no actúa. Si os fijáis bien los que tengáis la pedalera veréis como la válvula se pone incandescente poco a poco (oscurecer la habitación para verlo). También se nota en el sonido, que va cogiendo volumen poco a poco. En el tono no soy capaz de notar si colorea o no como lo hace un ampli a válvulas, pues nunca he podido comparar ni escuchar uno... Por ir lo demás suena de lujo. Toqueteandola mucho he conseguido sacar el mismo tono que el de sweet child o mine... Y con el mismo me refiero a literalmente el mismo.
i have one of these and i was of the understanding the tube is used in the power amp stage not in the pre amp. I thought all the tones this thing generates are digital.
BTW, if you change the tube, you'll notice the sound also gets slightly different (e.g. you can get more headroom).
Just to clarify: I'm not saying the tube operates some kind of miracle or anything. It is part of a much larger circuit, and most of the tone comes from the DSP. But it is not just a useless piece of glass sitting there. It does play a role, even if it has nothing to do with the "real tube tone" some expect when they "listen with their eyes" (and yes, the LED is for those people).
off their webpage about the ST:
"True-tube Valvetronix power! The power amp circuit features a 12AX7 triode vacuum tube for undeniable tube tone" it does nothing to the tone at all!
I do belive that they put it where it is for looks but it does play a roll in the overall sound of some presets, if you have ever opended it up to look the tube is actually tied into alot of different things, its like a mix between ss and tube with a pan knob. kinda like there valvetronix amp look up the wireing digram it makes no since lol
All of the chosen presets ( 70, 87, 88, 92, 98) use "Clean CST" amp model [please refer to the operators manual]. Here is the description of this 'amp model' from the manual:
CST (Custom)
"This models only a four-band tone control that produces an
undistorted, pure, clean tone. The GAIN control is disabled. ... "
It is not an 'amp model' !
So it is not surprising that the tube/valve is not involved in those presets.
I have made the test with TL LE : no valve, no sound
parallel working effects(digital pad) still working without tube. Depends on the switch matrix/preset.
VOX are far not the only ones who highlight their vacuum tubes with LED. I suppose that at least half of todays brands do that for an aesthetic feel. But you can't omit the fact that the tube actually works. In fact, this video shows that one cannot use amp modelling without the valve. Btw it's also impossible to use distortion/overdrive/fuzz etc. Only 1 clean tone is available along with some effects that for sure have nothing to do with the tube (like modulation and time-based effects).
yeah my tube died so did my sound ,replaced it good again. the tube is the whole preamp sound
LED is something many effect builders using starved circuits like to add. If you search for 'diy tube overdrive' in youtube, you will most likely find several tube overdrive pedals which's tube glows very brightly, or even glows with an odd color like white, blue or purple. That is because such a tube DOES NOT GLOW in a starved circuit. I have built some tube overdrives myself and witnessed that. Sound is great, but you dont got the 'correct' looks ;)
The Starved plate 12ax7 tube does NOT process the signal as a REAL Tube preamp (Ala Marshall Valvestate) does... But it just let some signal through the tubes just like a High pass filter does in order to emulate the Tube Warmth. So in theory by design, it should work without the Tubes but it will loose that extra MOJO!
Presets 70,87,88,92,98 all use the red Clean setting, whicht is just an uncolored EQ with no amp modeling. The fact that these presets still work after removing the tube do NOT imply it is just a gimmick. The fact that the other presets don't work is what shows the tube does have a role.
The TL's circuit is obviously not comparable to an amp. The tube is used as a clipping device in a starved plate design. In the old desktop version, you can actually set the amount of dirt from valve reactor.
In a starved project, the tube is almost always working near the "knee" of its current-grid voltage characteristics. This part of the characteristics is highly nonlinear, hence it imparts distinctive distortion to the signal. Therefore, the sound *is* clearly shaped by the tube and in a very dramatic way.
5. A starved plate design however produces even and odd harmonics almost evenly. The "distortion quality" is rather harsh and not comparable to a "good" tube design.
my ST fucking rocks big time and ive owned alot of valve amps
I have the tonelab st and it has been acting up ie: most of the preset channels are dead. I have to double check but it seems like the only ones working are the ones you mention after removing the tube.... I can assume it's something with the tube's circuit now. I tried a different tube and same thing. I will try a 3rd tube from my amp but i think it may be something in the circuit not the tube itself.
Doug Gingerich Just get the Stomplab. It's the DSP technology that really matters in this, people still don't understand.
wow, shocking :O
Right on ! I think you've uncovered a bit of a scam. Myth buster. lol. Thanks for this.
I really liked your video. You gave insight in the very deceiful world of "marketing tubes". Have you had the chance to try the Vox Valvetronix VT+ amps? What do you think of them? Does the same thing with the Tonelab LE happens with the low wattage Vox VT+ amps? I mean, does the tube play a "aesthetic" role and doesn´t work the sound so you can really "feel" the tube warmth? I hope not to bother you... Really liked the critical thinking in your video... and the LED thing was outstanding...
and tonelab sounds good
@oszyby ... nice video. I would like to ask you. What do you think, how much beneficial is that tube for final tone. I used to use Zoom G92tt and planing to replace it with tonelab ...
as far as I'm aware, the tube is used only the for overdrive and distortion patches.
I have a question, i really didn't get it. So without the valve the overdriven channels do not work? Only the preset that you played? they were all clean so I'm assuming that without the tube there is not overdrive. So what's making the sound distorted is the tube? I'm really confused, please explain to me.
Thank you.
Hi do you still like the tonelab st even though the pedal works same with out tube? And have you found a set up on tonelab that achieves john mayer tone? Please reply here let me know john mayer settings for tone if you know em? Thanks
tonelab's tube serves as a power tube simulation.a real tube amp still distorts without power amp section.vox thinks the most impoert thing a in a valve amp is the power tube.this leads the tonelab series,and in the vox tonelab's amp series the 12ax7 is changed to power tubes like 6l6 or something.
I have some NOS GE 12AU7 in a project of mine and one of these has a very brilliant filament. However this is certainly not a requirement. After all, these are *not* lightbulbs, are they?
3. I don't see anything special in finding that the thingy there still works on some presets, namely those that *do not* sport any "high gain" feature.
4. It is likely that this product employs a "starved plate" circuit. Namely, the tube is employed at a much lower anodic voltage than the "official" one.
6. Point 5 remains of course valid if you are one of the audiophiles or nerds who would swear on the Stratocaster of Hendrix that they can clearly distinguish the second harmonic from *any* other harmonic present in a signal. Your mileage may vary.
In conclusion, I don't see the message of this video.
I have the pedal and i very like the sound "36"... But what is the name of this sound? It's like 2 octaves in one string. ? :)
This friendly tube at least looks nice.
Hey would be great if you could answer my question . I've brought this product recently n i'vr noticed at times the orange glow from the tube becomes so dim u can hardy see it , n after about 10 mins its back to the usual glow with no change in the sound of the tone !! Its happened twice so far , just wanna kno if this is normal ?? Has it happened to u ?? Should I get it replaced ?? also since its most likely that the LED is causing the bright light .
the filament of an ecc83/12ax7 runs with 6.3v, and the plate voltage, from 200 to 350 volts, if the voltage isn´t enought, the tube will not work anything, even the filament was working it could be using 1 amp or more, and its so difficult to get 350volts from DC current; that is the worst thing for the battery, then a led is used, so filament is not working, the tube doesnt work neither, is like a diode, if the voltage on a diode is under 0,7 volts its like not doing nothing
no it doesnt..u have to consider that what makes a "tube sound" is the signal of the tube going to the speaker..if u have the tube on this pedal going into a solid state amp, then the pedal-tube signal will go first thru the solid state transistors and then to the speaker..whick will again sound like a transistor amp...maybe a bit better? i dont know, i have never tried..but theoretical it shouldnt work...its a signal "path" thing..
I've been using a Tonelab ST for all my recording and live use - to my ears, it still has the best amp modeling out there for under $1000 - only idiots who don't learn to use it properly complain about it (they only use the presets and never learn to program it). This video fails to demonstrate that when you use the overdrive/distortion models, it doesn't work - meaning the tube actually serves a purpose!
How can the tube itself serve any purpose whatsoever if it doesn't actually light up and is obviously not energized when the unit is powered on?
Explain this^^
@@bearwhocares9539 It's already explained by other 10 years old comments.
thanks!
Does the same happen with the Blackstar HT pedals?
but what about the vox tonelab ex the tube work? or is a simple marketing
The windows is for removing the heat from the tube ...
лампа стотит на перегрузе.пресеты использующие дист,не будут работать без лампы,у меня был этот проц
Артур Саакян лампа стоит в предуселителе модэлей уселителей, без неё тон ,гейн...не работают
1. What's wrong in back-lighting a tube as is done in *many* of the recent tube products?
2. Since the author of this video seems pretty proficient in electronics, he will certainly know that almost all the modern (and almost always of sub-par sound quality btw) incarnations of 12AX7 have barely visible heaters. In general, dual-triodes of the same class (12AU7, 12AT7, etc...) do not have particularly "evident" heaters.
can you post a vid showing your bypass mod and one switch tuning please, I have a TLST and I'd like to mod it :)
Would you please show how Tonelab works without tube when you try to use the amp simulations. I bet you cannot. I think this video was just to get some attention. The LED is important for the looks, but you did yourself admit that the TUBE HAS AN IMPORTANT FUNCTION. So, why to put a doubt over this device?
LOL it is obvious, even if you have basic knowledge about how tubes work. All of those pedals and even hybrid amps are just for show. You need powered tubes to actually get that tube tone out of the pre-amps. Theres is no way a pedal adapter could power a pre-amp tube.
I own the Tonelab EX, its the exact same thing. I am seeking to replace the whole thing with something from T.C. or similar I hate that VOX pedal.
that's no surprise for me. In all those so called tube driven pedals, tubes are more or less all fakes. They all are made for those dump players, who think a tiny tube generates a real tube tone. This whole bunch of pedals work all with IC's, diodes, transistors and so on... If you wanna have tube tone, buy a REAL tub amp, that's it !!!
I think dont know what you talk.. even basic tube use on low volt circuit... Go to learn some before make some conclusion it make you look stupid
Wow! To me, it seems like they (Vox) are scamming us a bit regarding this device. That's concerning for me, because I was considering buying one of them (used). Thanks for the heads up!
tube gives dynamic and tone you can hear the difference between different tubes dont judge the device
Read thru the comments. Clean channels don't use the preamp, any distortion high gain channel does.
Nice move oszyby, you're very "smart" indeed =/
Taaak, akurat ten Vox to napewno nie jest Vox Dei...
Pozdr., DrWT (Zoltan).
That was a very dishonest of VOX...I say this because the window that lets you view the tube is by an LED..Why put the window in it to view a 12AX7 glow when when all you are seeing a LED backlight...The fact that VOX put the window in the tone lab to view the tube is criminal
the tube is only for knob of amps ¡¡¡ or pacher with simulatio amps .....all efect an pedals dont needed .... is similar a vox LE tone lab (Y)
Just use a tube amp!
A LED is a pretty harmless thing to be put in. It's just aesthetics come on! And concerning the tube: yes, it does produce the "high gain" tone which btw is likely NOT to be high gain but just distorted by the tube being in "starved plate" mode. And concerning the quality of the produced sound...mosquitoes. Any starved plate design is beaten hands-off by MOSFet or even diode-clipping distortion. And btw, the clean samples sported here sound 100% plastic. Awful unit, VOX!
incredible... i knew that vox was cheating about valves. But the LED to illuminate the tube, unbelivable. i tried with the one i own, it's the same. an orange LED illuminates the place where the tube is, and it works like a charm. Well, to be honest, the distortion patchs don't work without the tube. maybe they use it. it does'nt make this thing bad, it's a pretty cool multi effect, but stop cheating with false valves.
by the way, you seem to be stoned on the video?
Criminal? Hold back your horses, dude. Even if it is almost surely used in a starved plate design, the 12AX7 produces a certain amount of heat which has to be dissipated. The grating serves this purpose. Since that tube has rather "dull" heaters, VOX has decided to backlight the tube with a LED for improved appearance. Is that criminal? If so, every person wearing a tie should put in jail for much the same reason.