El84 vs 6l6

I was on a pop tarts kick earlier this year with my morning coffee. I don't think they have an iota of nutrition in them Glad I kicked that very bad habit. The fuck knows, anymore, really. Sent from my iPhone using Tapatalk.

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Content:

• Welcome To the Hoffman Amplifiers Forum
• Amplitudes: The Mesa Boogie Blog
• EL34 vs. 6L6GC vs. 7591 ? Truth - Who's Best !
• EL34 vs 6L6 Tubes. What is the difference?
• EL84 vs. 6V6 vs. 6L6 preference?
• EL84 amps vs 6L6.........
• EL34 vs EL84 vs 6L6 (Tube Shootout!)
• The 6L6 vs. EL84 conundrum. Pitbulls vs. Sledgehammers

WATCH RELATED VIDEO: Small Amp VS Big Amp! (Laney IRT Studio EL84 VS Ironheart 60 6L6)

Welcome To the Hoffman Amplifiers Forum

User Name Stay logged in? Looking for a comparison of the frequency response cyres for these tubes in clean operation.. Not sure what you're asking here. Find More Posts by Miles Prower. Multiply by g m r a and the gain-bandwidth products would be about MHz and 63MHz respectively. Like Miles said, what exactly are you asking? Last edited by Merlinb; 24th February at PM.

Find More Posts by Merlinb. People often describe each tube in terms of what they hear. I would simply like to see how they reproduce the audio frequency spectrum; much like a speaker 20hzkhz SPL chart. True, some people describe different tube types in terms of what they think they hear.

Some people even claim that different tube brands sound different. Or even diffrent examples of the same type in the same brand. Whole textbooks and many papers in learned journals have been written by electronics engineers and psychologists about why people think there are differences in things where there is in fact no difference at all. People imagining non-existent or reversed differences is a major problem in the drug industry and seriously frustrates development and optimisation of medical treatment.

There is a well known difference, easily demonstrated by instruments and known about by electronic engineeers since tetrodes were invented in the 's between triodes and tetrodes and pentodes. Pentodes have slightly higher distortion compared to beam tetrodes intended for audio, but the difference is so slight that in various circuits the difference is often reversed. For tetrodes and pentodes, the sound doesn't inherently depend on the tube. However these particular pentodes have higher gain than these particular tetrodes.

So, if you start with an amplifier designed for 6L6, and drop in an EL34, the amplifier may become unstable. You hear the instability as distortion. But an amplifier intended to take a EL34 won't be unstable and will sound the same - other aspects eg transformer design being equal. If the amplifier is an ultralinear type there is a measurable with instruments difference with 6L6 and EL34 in the same amplifier due to the different screen characteristics. It is quite unlikely that anyone's ears can tell the difference.

And the slight difference that is detectable on instruments can be easily reduced or eliminated by adjustment of the transformer screen tapping point. The human ear cannot detect small changes in volume 1 dB or less as a change in volume. But we DO hear the change - as a change in bass and clarity. Quite a number of journal articles have appeared that describe how double blind auditioning has identified a diffrence in clarity, bass, or treble, investigation by engineers shown that there was a diffrence in volume.

When this was corrected, the auditioners could not detect any difference - even when differences in distortion beween amplifiers were easily detected on instruments. Due to the peaky nature of music, all but the highest power amplifiers in audio service are routinely overdriven momentarily in any musical selection, unless reproducing vinyl or radio braodcasts, which are compressed.

With CD's, even when played at moderate volume for personal listening, momentary overdroves are routine. Even with vinyl, overdrives occaisonally occur except for listening a quite levels. The ear cannot easily detect occaisonal momentary overloads. Some people cannot detect it at all. We can all, of course, easily detect overdrive once it occurs continuously. However, less than perfect amplifier circuit design can result in an amplifier than does not instantly recover from an overdrive, and remains parallised for a short time after.

This parallysis is easilty detectable and sounds horrible. A type of overdrive response called re-entrant clipping, once not uncommon in solid state amplifiers, also sounds bad. Make no mistake. The behavior of audio amplifiers both tube and solid state under overdrive is VERY important and is a major reason why some sound a lot better than others, and why some sound different than others.

Overdrive behaviour is determined by circuit design, not the tube type. Unless of course the tube is worn out or faulty. Last edited by Keit; 24th February at PM. Thank you very much for this answer. That is something I had always assumed was part of the equation, but never read it anywhere. Basically, a circuit designed for a 6l6 will sound like it has more treble or presence with el34 because the circuit has now changed? But if two amps were each optimized for each tube it would be very difficult to tell the difference?

Originally Posted by diaz But if two amps were each optimized for each tube [type] it would be very difficult to tell the difference? Audio and guitar amplification can be quite different. Audio is usually hi fi type amplification. Guitar amplification can be clean or have lots of harmonics for a richer sound.

Marshall made a fortune supplying rich sounding valve amplifiers. Find More Posts by nigelwright The Frequency response is dependent on a number of parameters Not entirely the tube, but each of the tubes you mention can have the same frequency response if the circuit is optimized for a given set of requirements Guitar amps are a bit more non-linear This drops the effective plate resistance down to to ohms range Find More Posts by cerrem.

Note however that none of what they said implies that one tube type will react differently to another. In any case the drop in plate resistance causes an increase in bandwidth, which is not much affected by the tube type. Frequency response is determined by the output transformer, the grid coupling capacitors, and any cathode bypass capacitors. BB code is On. Smilies are On.

Forum Rules. All times are GMT. The time now is PM. Resources saved on this page: MySQL User Name. Stay logged in? Mark Forums Read. Please consider donating to help us continue to serve you. Page 1 of Last ». Thread Tools. View Public Profile. Send a private message to diaz Find More Posts by diaz Send a private message to Miles Prower.

Send a private message to Merlinb. Visit Merlinb's homepage! Send a private message to Keit. Find More Posts by Keit.

Quote: Originally Posted by diaz But if two amps were each optimized for each tube [type] it would be very difficult to tell the difference? Send a private message to nigelwright Visit nigelwright's homepage! Send a private message to cerrem. Posting Rules. Similar Threads. Piezo tweeter frequency response curves? Frequently Asked Questions Did you forget your password?

Amplitudes: The Mesa Boogie Blog

You have selected the. Guitar players are quick to defend the how-and-why of their preferences and the type of tube used is a common jumping-off point for what makes an amp great. The long story may well provide you with some new insights as to how to approach tube tone and regardless of your tube preference, you may find yourself appreciating both for their inherent specialties. The many patents we hold covering all aspects of the power amp — from Channel Assignable Wattage, Switchable Rectifiers, Switchable Classes of Operation and even Wiring Styles hints at our inclusion of the power amp as a huge part of the tonal greater good. These days, the subtleties of power-tube distortion and clip are often overshadowed by the greatly expanded range of preamp gain available in modern amp designs. Most modern distortion circuits and sounds are usually generated by massive preamp gain being amplified through very clean power sections that are operating below their power rating threshold of clip.

EL34 vs. 6L6GC vs. 7591 ? Truth - Who's Best !

Welcome, Guest. Please login or register. Home Help Search Login Register. Pages: [ 1 ] Go Down. Hey guys, So a few years back, you all helped me get into amp modding. I've modded this wonderful little 18w into something pretty awesome. Now I'd like to learn how to convert it to a 6L6. Would someone please point me in the right direction on how to do that? Here's a link to my latest recording with it. I've attached the original schematics and the mods I made as well.

EL34 vs 6L6 Tubes. What is the difference?

Remember Me? Blogs Contributing Member Advanced Search. Page 1 of 2 1 2 Last Jump to page: Results 1 to 19 of Thread: 6L6 Vs.

EL84 vs. 6V6 vs. 6L6 preference?

LOG IN. Its a 2 chassis piece with separate power supply and adj. Is the EL34 just a more powerful version of the EL84? I look forward to your responses. Edit Delete. People love it for his tone quality.

EL84 amps vs 6L6.........

The 6L6 vs. EL84 conundrum. Pitbulls vs. Messages: Likes Received: I have an Engl Ironball.

EL34 vs EL84 vs 6L6 (Tube Shootout!)

Photo by Andy Ellis. But during that era, there was a greater separation between American and British sounds. Also, players used few, if any, effects in those days, so you can often hear the sound of a guitar plugged directly into an amp, providing clear examples of the core sounds associated with each tube type.

The 6L6 vs. EL84 conundrum. Pitbulls vs. Sledgehammers

RELATED VIDEO: EL34 vs 6L6 Tubes. Whats the difference?

The sound of a valve amp cranked nice and loud is synonymous with rock and guitar heritage. Valve technology was predominately found in televisions and radios from the mid to the late 20 th Century, transistor technology advanced and took its place. That being said, guitar amplifiers remained married to valves due to the unique feel and tone they produce. Similar to the construction of an old-fashioned lightbulb, a valve is a collection of different elements together in a vacuum, cased in a glass cover. One of the elements, the Cathode, is heated and electrons electricity flow from this end to the high voltage Anode on the other end.

My only reservation is the EL84 tubes. Here's why. I have owned many guitar tube amps in the last few years. I've never cared for any of them where the power tubes were EL84s. The ones I love usually have EL34 power tubes, or 6L6s. That said, it may very well be a different ball game with stereo amps, I just don't know as I have never owned one.

However, guitar amps typically feature two different tube-powered amplifier sections: the aforementioned preamp, and the power amp. The power amp section of your guitar amp is what actually drives volume into a speaker , which requires a significantly higher amount of amplification power than the tubes used in the preamp. As such, guitar amps have a wide variety of even more tubes that are used to power the amp, each with their own unique tone-shaping characteristics.