Same In Room Response Different Sound

[Mean & Green]

I’ve just watched something on YouTube by Andrew Robinson that makes no sense to me at all. I find this guy very tedious, but he’s claiming that two different amps measure the same in his room yet they sound completely different to each other tonally.

Here is the video listen at 4 mins 10 secs, what sense does any of what he says make?

YouTube’s algorithm suggests these pointless vids to me and I occasionally succumb and remind myself of the drivel I used to take notice of to make purchasing decisions. I just can’t see how he can say what he does with credibility.

Thoughts?

 

[antcollinet]

what sense does any of what he says make?

None at all. We can presumably assume he is indulging in sighted listening, and so conclude his "impressions" are not worth the paper they are written on.

 

[amirm]

He doesn't know that his brain is working differently in the two situations, not the amps.

 

[Mean & Green]

None at all. We can presumably assume he is indulging in sighted listening, and so conclude his "impressions" are not worth the paper they are written on.

Yes his sighted subjective listening tests are completey invalid, but what I can’t fathom is how he comes out with a sentence like that and doesn’t actually take a step back and think to himself “I’m talking utter BS here I can’t possibly put this out on the internet.”

I haven’t seen anyone in the comments section call him out, admittedly I haven’t looked very hard either, but anyone putting this stuff out on youtube is just comical.

 

[kemmler3D]

he’s claiming that two different amps measure the same in his room yet they sound completely different to each other tonally.

If this were actually the case, (extremely doubtful) a reasonable person would measure the output of the amps to figure out what's happening.

Going on Youtube and talking about it without trying to nail down the cause is just pot stirring of a particularly tedious variety. Put this in the same basket as people that believe magnetic copper bracelets help their golf game and quartz crystals improve their allergies.

 

[Mean & Green]

If this were actually the case, (extremely doubtful) a reasonable person would measure the output of the amps to figure out what's happening.

Going on Youtube and talking about it without trying to nail down the cause is just pot stirring of a particularly tedious variety. Put this in the same basket as people that believe magnetic copper bracelets help their golf game and quartz crystals improve their allergies.

The sad part is lots and lots of people believe this type of nonsense.

 

[kemmler3D]

The sad part is lots and lots of people believe this type of nonsense.

If you don't know how something works (and doesn't work) it's easy to believe all sorts of fantastical things about what it might be doing. This applies as well to health as it does to audio, unfortunately.

 

[Blumlein 88]

Someone commented it made no sense. Another complained you never get to hear the difference in the video yourself. His response was to post a link where you can buy the Cambridge and hear it for yourself. I think we all know the motivation for this video. The love of filthy lucre. For that it makes perfect sense.

 

[Purité Audio]

The more ridiculous the more hits, it is purely a revenue stream and of no practical use whatsoever.
Don’t watch them.
Keith

 

[Galliardist]

The more ridiculous the more hits, it is purely a revenue stream and of no practical use whatsoever.
Don’t watch them.
Keith

Sorry to let you down, I watched... ten seconds, at the appropriate point.

Good grief. The Cambridge amp is more than twice as powerful than the Marantz he's comparing it to. Just do the sweeps at low level, and listen at a high level with a moderately hard to drive speaker, and everything here is explained.

Case closed.

 

[Pareto Pragmatic]

...claiming that two different amps measure the same in his room...

He said frequency sweeps showed "no significant difference". I interpret that to mean they were VERY close at whatever smoothing he used. But what is significant? Sometimes even small difference are significant to what I hear

Did he look at raw measures, 1/48, or only 1/6 (or whatever)? No idea. Did he look at distortion levels? Not that he said. Did he look at any other measures? I don't think I have ever seen him do more than sweeps, but he might have at some time on some review. Possibly.

I personally would love to see the measures of "no significant difference". That S word is doing a lot of work there.

 

[PGansz]

Erin just released a video on a McIntosh amp and was reliably able to pick it apart from his March Audio amp at high decibel listening.

The reality is some DACS, and some amps don't have ruler flat frequency responses and may compliment each other better with speakers that have the opposite issues.

I'm saying this because I have seen DAC reviews on this site with 1db or more dip in high frequency, and class D amps drop off at high and low frequency, and have seen other amps with elevated responses at the extremes.

That Cambridge amp may just play better with Andrew's gear or speakers.

Or, more likely, he's just making it up and as others have stated, engaged in "sighted listening".

Unless someone measures all of his gear, summates it, and knows his room response, it's impossible to say he's actually full of garbage. But he probably is.