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[Gallium Nitride amplifier] Impressions of the Mini Gan 5 by Premium Audio, pictures / video inside

Geert

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18 months of membership to get to this point. Quite lot of commitment there...:facepalm:
"Sleeper terrorist: noun. A terrorist who is not currently active but assumes a guise in order to be in position, unsuspected, for future terrorist activities".

Lot's of accounts like this.
 

catluck

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Getting a load of opinions won't do anything to get rid of subjectivity. All it will do is bring the subjectivity of a load of random strangers into play.

This is not what ASR is about. This whole thread is the exact opposite.

Measurements, and Blind listening tests at your showroom - or you might as well go to a different forum. You are only achieiving turning people off the product here.
Perhaps subjective evaluation, absent confirming measurements, will "turn people off." But, as noted in a recent Stereophile essay
Not the best measurements I agree )
We got no measurements for the Saba A20aj but many people bought it and came into the conclusion that is an incredible amplifier specially for its tonal properties....

Any US people here living in CA ? Should be nice to test the Mini Gan 5 and share your opinion )
After reading the criticisms on this forum, the Class D Audio marketing (some might call it propaganda - typical of marketing) and engaging in a back and forth with Tom Rost at Class D, I ordered a pair of monoblocks. With a 15 day trial period, what's to lose? Somewhat taken aback at the hard core objectivists but I do understand and appreciate the value of "good" measurements. It's just that subjectivity plays a role, perhaps the final role, in choosing musical components. Of course, most of us, given a choice between two seemingly identical sounding products would choose the better measuring product. No mystery there. But that truth doesn't diminish the salience of subjective appreciation. In any event, I'll be receiving the mono's today and I'll report back on my experience albeit without measurements. I've been using Psvane 845 monos (50 watts class A @ 8 ohms) and Bel Canto eRef 600's (class D, 300 watts @ 8 ohms, 600 watts @ 4 ohms). I'm all tubes upstairs (Manley Neo-classic 300B's, Granite Audio SR (KT-88's) and Hartung OTL (6C33's w/50Watts @ Class A). So I think I have an idea of different but "good" sounding amps. Been in this passionate hobby for nearly 50 years. Yeah, I'm an old guy... If you read this month's issue of Stereophile you'll see an essay on the back page re: measurements vs subjective appreciation (and, my letter on the Letters to the Editor page re: Bakel's troubling position, as I understood it, and supporting objective measurement). FWIW, as indicated, I'll report back on what I hear from the Class D Audio miniGan 5's.
 

Jim Taylor

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So I think I have an idea of different but "good" sounding amps.

There are only two sorts of amplifiers: good amplifiers and bad amplifiers. Amplifiers that sound "good" are bad amplifiers, because good amplifiers have no "sound". Good amplifiers simply amplify the electronic signal, be it what it may. You therefore can't hear the amp, but only the music .... or voice, or birdsong, or movie, or whatever.

Your comment and the list of amps you posted bring to mind a quote, supposedly attributed to Alan Parsons:

"Audiophiles don't use their equipment to listen to your music. Audiophiles use your music to listen to their equipment."

Jim
 

beren777

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Perhaps subjective evaluation, absent confirming measurements, will "turn people off." But, as noted in a recent Stereophile essay

After reading the criticisms on this forum, the Class D Audio marketing (some might call it propaganda - typical of marketing) and engaging in a back and forth with Tom Rost at Class D, I ordered a pair of monoblocks. With a 15 day trial period, what's to lose? Somewhat taken aback at the hard core objectivists but I do understand and appreciate the value of "good" measurements. It's just that subjectivity plays a role, perhaps the final role, in choosing musical components. Of course, most of us, given a choice between two seemingly identical sounding products would choose the better measuring product.

You aren't choosing a musical component. You are choosing an audio reproduction component. The musical components were chosen by the original artists, studio, mix engineer, and you when you selected which track to play. Everything downstream of that is reproduction, not an instrument.

The issue is subjective bias. What sounds good to you may differ on any given Sunday. The product may produce coloration that you love for 15 days, and then you want your money back. Audio reproduction equipment should reproduce the original signal with as little distortion and coloration as possible. I consider this the true meaning of high fidelity: equipment (which includes the room) that reproduces audio as true to the signal as reasonably possible.

If the user wants coloration, that's fine, but why not do so via DSP instead of trying to mix or match components which distort in different, hopefully complementary ways?
 
OP
daniboun

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There are only two sorts of amplifiers: good amplifiers and bad amplifiers. Amplifiers that sound "good" are bad amplifiers, because good amplifiers have no "sound". Good amplifiers simply amplify the electronic signal, be it what it may. You therefore can't hear the amp, but only the music .... or voice, or birdsong, or movie, or whatever.

As such, what measure defines a good amp? I want numbers

Always, if you have ****** ears, it's useless to have a good amp lol ))))))))))))))
 

SIY

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Perhaps subjective evaluation....
Let's use the real words, not euphemism. No controls, peeking.

So such "evaluation" is worthless from the standpoint of sonic reality, but great for marketing and storytelling.
 

catluck

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There are only two sorts of amplifiers: good amplifiers and bad amplifiers. Amplifiers that sound "good" are bad amplifiers, because good amplifiers have no "sound". Good amplifiers simply amplify the electronic signal, be it what it may. You therefore can't hear the amp, but only the music .... or voice, or birdsong, or movie, or whatever.

Your comment and the list of amps you posted bring to mind a quote, supposedly attributed to Alan Parsons:

"Audiophiles don't use their equipment to listen to your music. Audiophiles use your music to listen to their equipment."

Jim
Jim
I take your point. However, "good" can mean transparent with low distortion, noise, etc. "Good" doesn't necessarily mean a colored spectrum or non-linear, etc. In fact, that's what I do mean by good. But, in any event, reliance on measurements alone doesn't always or necessarily yield the best sounding kit. If you disagree, I respect that. You'll make your purchasing decisions and I'll make mine. For myself, I've heard kit with apparently superior measurements and which sounded thin and/or lacking some aspect of musicality. Psychoacoustics is a complex and knotty consideration - ghost in the machine. Distortion spectra hit us all differently. Within the realm of "good" amplifiers, and I'm supposing you mean better measuring amps, there are many choices with different presentations. All one need do is listen to know the truth of this claim. However, over the years the contest between objectivists vs subjectivists has raged and continues on.... Again, I prefer the better measuring kit ceteris paribus.... But the importance/relevance of subjective evaluation seems to me inescapable... And, as I noted in my thread, what's to lose with a 15 trial period? Nothing but a learning experience.
 

DonR

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As such, what measure defines a good amp? I want numbers

Always, if you have ****** ears, it's useless to have a good amp lol ))))))))))))))
Have you had your hearing tested? Do you know what level of SINAD is audible to you? Do you know what range of FR is audible to you? How do you separate what you actually hear from what you think you hear i.e. your subconscious biases?
 

catluck

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I have had my hearing tested many times over the years. What level of SINAD is audible? Depends on all manner of variables - sleep, listening time, fatigue, etc. Separating what I actually hear from what I think I hear? If you "think" you hear something it may be logically indistinguishable from actually hearing it. But your comments, while theoretically valid, just don't inform my daily experience of listening. Do you know what level of SINAD is audible to you? At all times - under all conditions? It's a silly question to me. Amps are only "good" or "bad"? A bit reductive and simplistic perhaps (responding to another thread). What I see more than anything else here, in the responses, is a tendency to the objectivist desire to be right. A bit totalitarian in flavor. The bottom line - buy what you like. Doesn't matter a whit to me if I like a piece of gear that doesn't measure "up to" another piece whose presentation I find less engaging, i.e., musical, and for whatever reason. To deny the interplay of subjective appreciation with objective metrics is, I think, at best, uninformed.
 

fpitas

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Interestingly one subjective review says the amp is bright while the other says the bass is boosted. Both claim it is fatiguing.
When something is composed of its opposites, it has reached a Zen-like state of illumination. I bet the harmonic interconnectedness is through the roof!
 

DonR

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I have had my hearing tested many times over the years. What level os SINAD is audible? Depends on all manner of variables - sleep, listening time, fatigue, etc. Separating what I actually hear from what I think I hear? If you "think" you hear something it may be logically indistinguishable from actually hearing it. But your comments, while theoretically valid, just don't inform my daily experience of listening. Do you know what level of SINAC is audible to you? At all times? It's a silly question to me. Amps are only "good" or "bad"? A bit reductive and simplistic perhaps (responding to another thread). What I see more than anything else here, in the responses, is a tendency to the objectivist desire to be right. A bit totalitarian in flavor. The bottom line - buy what you like. Doesn't matter a whit to me if I like a piece of gear that doesn't measure "up to" another piece whose presentation I find less engaging and for whatever reason. To deny the interplay of subjective appreciation with objective metrics is, I think, at best, uninformed.
If that is your reasoning, any subjective comment you make on a piece of equipment can be dismissed as a useless observation since it is influenced by so many uncontrolled variables. One day you may find an amplifier fatiguing and the next day it lifts veils. The amplifier has not changed. That is why objective measurements and double-blind testing must take precedence. Thinking you are hearing something is not the same as actually hearing it because it is rarely repeatable as it is subject to ever-changing subconscious biases. Most people here have no issue with people buying whatever they like, they just need to make sure they are not being fooled by their own minds.
 

fpitas

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Ironically, GaN transistors are probably a good choice for class D. You can switch faster and have better efficiency. Whether the fidelity is better is somewhat doubtful...
 

catluck

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If that is your reasoning, any subjective comment you make on a piece of equipment can be dismissed as a useless observation since it is influenced by so many uncontrolled variables. One day you may find an amplifier fatiguing and the next day it lifts veils. The amplifier has not changed. That is why objective measurements and double-blind testing must take precedence. Thinking you are hearing something is not the same as actually hearing it because it is rarely repeatable as it is subject to ever-changing subconscious biases. Most people here have no issue with people buying whatever they like, they just need to make sure they are not being fooled by their own minds.
Your reasoning proves my point unless, of course, you are that special person who doesn't suffer from the very vagaries you describe, i.e., daily discontinuities in perception. Regardless of an amplifier's measurements we are all subject to individual and continuing discontinuities in perception. Moreover, and more importantly, the scenario you describe has rarely occurred in my life (fatiguing to lifting veils - wildly, IMO exaggerated scenario) albeit that may demonstrate the limited utility of blind testing as it seems to be that only over time and longer listening to various genres of music can we really form a "reliable" opinion of any kit's sound qualities. At best, we hope for a "mean" sound of gear. Not fooled by your own mind? Tell me the criteria which you employ to determine that you're not being fooled by your own mind? In any event, this is just a passionate hobby, the love of music. Yes, gear is fun and subject to all manner of assessment when determining musicality and purchasing decisions. For me, I choose to be ravished by the music I listen to and I don't give a shit if it comes from two mice spinning a wheel. And, again, this is not to say that with roughly equal sounding kit I'd likely choose the better measuring kit if only because I would expect it to demonstrate it's musicality more reliably over the long term. I respect and value the responses to my post but at this point it seems we're going in circles. I really do respect good engineering and objective pursuit but they aren't, for me, the final determinants when choosing gear. It's been fun. Over and out. Take care all.
 
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