Not just better engineers, though it does of course need them. But also better investors, marketers and visionaries.
Oh, I don't know, there are guitar amps out there built into gorgeous furniture, point-to-point hand wired (covered with beautiful cloth in spite of being inside the amp), silver soldered, filled with vintage NOS tubes and custom transformers, etc, etc...it's all very much like "high-end." But I will concede that it's very different from hifi. And I think you've missed the point; if there were a market for the products to justify the R&D, the engineers who produce these devices and the ones Bruce talks about that model classic studio gear could not only measure and fully describe the sound of your amplifiers, they could create convincing copies of them. They could put a dozen of them in a single box and allow you to virtually adjust the input impedance, output impedance, tube swap, you name it. I'll bet they could even make it sound like you changed boutique cables. Point and click synergy, baby. Now, it would be a lot more expensive for you guys than it is for a simple guitarist such as myself, because I just need midrange and blistering volume. Hifi needs full range and, for many of you, huge scale. So you'll still need big iron for big speakers. Big enough to deliver the full impact of any model in the box into any load you can reasonably anticipate. But none of that is a limitation of the modeling itself. That could be done. If they can make a digital model and a class D amp respond dynamically, to my touch -- to my pick attack and finger vibrato -- just like a 50 year old class A, hand-wired, all tube amp responds, I think they can navigate the gap between a ML and a Dart Zeel without breaking a sweat. The high-end just needs better engineers.
Tim
(...) The difference is how the amps proceed into distortion and when. The guitar amp is valued for its distortion characteristics, the audio amp....well not so much
You should read the Devialet approach to designing an high end amplifier - they combine a class D and a class A amplifier to get the Musicality of the Class A (voltage control) and efficiency of the class D (current output).
Engineers are working hard!
As usual you miss what is the fundamental objective of high end - sound reproduction with high quality - and focus on the accessory. IMHO you do not need better engineers - we have very good ones in the business - you need more fundamental research in the psychoacoustics of electronics devices. You need better systematic knowledge about the effects of very small distortions on the perception of reproduced music. Surely stating that these differences are minimal and only matter to a fringe of lunatics who do not mind paying a lot for a small preference is not a good help to this study. Do you think that people who design modelers use fairy powder? They manage to do it because the effects they want to reproduce are simple to measure or the signals they manipulate are of limited scope.
You should read the Devialet approach to designing an high end amplifier - they combine a class D and a class A amplifier to get the Musicality of the Class A (voltage control) and efficiency of the class D (current output). Engineers are working hard!
Modeling will come to audio reproduction, I think. But it will probably be modeling space. First stops? Probably much better venue simulations for surround sound and...and this would be appealing to many millions of music lovers -- getting headphones out of our heads.
Haven't heard it myself, but it could be already here : http://smyth-research.com/technology.html
Oh, I don't know, there are guitar amps out there built into gorgeous furniture, point-to-point hand wired (covered with beautiful cloth in spite of being inside the amp), silver soldered, filled with vintage NOS tubes and custom transformers, etc, etc...it's all very much like "high-end.
Tim
And as usual, you've dismissed true innovation as an accessory because it isn't "high-end."
Tim
Amplifier modeling would, in the end, be wasted on audio reproduction, as the vast majority of music lovers/listeners/consumers are uninterested in the small differences between amplifiers if they're aware of them at all. Modeling will come to audio reproduction, I think. But it will probably be modeling space. First stops? Probably much better venue simulations for surround sound and...and this would be appealing to many millions of music lovers -- getting headphones out of our heads.
The "better engineers" remark was flippant. I can't resist a punchline.
Tim
This rather does depend on which hypothesis you favour for why class A sounds musical. One possible one is that its due to the lack of switching of the output devices. If so, then adding a class D stage destroys that. OTOH it could be down to the invariance of the power supply with output level - and again, if that's the reason combining classes A & D blows that advantage away too. I'm by no means claiming that exhausts all the possibilities but can you think of others? Perhaps a third one is that this hybrid A & D design is rather like Quad's 'Current Dumping' where the A stage corrects for the errors in the B stage. But current dumping hasn't had a good SQ rep to my knowledge.
Indeed they are, but is the smartness in the engineering here or in the marketing?
And you still think there is not a large difference? What must an amplifier do to be different?
Think of all the music you guys could have been listening in the time you've spent arguing about this...
Think of all the music you guys could have been listening in the time you've spent arguing about this...
Mikey's Mikey. While I don't agree with him on everything, I've heard, owned or reviewed a lot of the same gear he has and I think he gets to the heart of things pretty well. And though I don't necessarily see eye to eye with him, I do admire the passion for analog and music in general.
It's always really easy to say, "I don't agree with that" or "I wouldn't do it that way." Much easier than it is to actually go and create something.
I think (but I could be wrong) the comment about the vast majority of music lovers/listeners/consumers refers to the financial incentive for the product to be developed, built and brought to market, not to any inherent superiority about what that "vast majority" believe compared to what the few (i.e., audiophiles) believe.
Haven't heard it myself, but it could be already here : http://smyth-research.com/technology.html