Or rather, you compared them in such a way that cognitive biases led you astray.So the message is: Either I have bad amplifiers. Or bad ears. Or both are bad.
Yes, I am aware that the result isn't guaranteed. I also want to confirm that, as it stands, I am not satisfied solely with the very loud orchestral passages. The vocals and musical instruments sound very good; then again, they do sound different in different concert halls. I will certainly carry out reversible tests as soon as possible and ask you how to proceed with the measurements. My own ears will play a part in the assessment, too, of course. While waiting to run these tests, I will also start considering the option of replacing the speakers.
I hadn't intended to replace the speakers, but it is an option worth considering. I have a few constraints. The footprint—including the base and spikes—must be no larger than 20 cm (W) by 26 cm (D). The bass reflex port needs to be front-facing because the speaker will be placed against the wall. I don't think it will be easy to find a high-quality tower speaker that meets these constraints—the very same ones that led me to buy the PMC GB1s back in 2004. Do you have any speakers of this type in mind?Here’s what I would do if I were in your shoes: sell your Rotel RB-870BX and your PMC GB1s. Add the proceeds to your budget and buy a combo solution—that is, active speakers. I can promise you that for the money you’re spending on those speakers, you can get some seriously good active ones—speakers that deliver genuine, high-quality hi-fi sound.
I can say the same about my AB vs. D. But it's not the amp I'm hearing, it's what feeds the amp. In case of integrated AB an inferior, old analogue stage compared to a superb DAC in front of class D.I see that a lot of knowledgeable audio experts have come to me, who undoubtedly know better than I do what I hear.:)
So to clarify: To MY ears, purely subjectively, MY AB amplifiers sound a little different than MY Class D amplifiers.
Neumann KH120 II maybe?
www.audiosciencereview.com
I see that a lot of knowledgeable audio experts have come to me, who undoubtedly know better than I do what I hear.:)
So to clarify: To MY e.
Do you think amplifiers with different measurements sound the same? You can hear for yourself the differences between two Class D amplifiers that are twenty years apart.
"Cognitive bias: no intrinsic quality can be inferred from size alone."
"Yet another test riddled with multiple errors... the first one isn't an ABX test."
www.audiosciencereview.com
You can test it here. The amps being tested show a difference of 20–30 dB (THD+N). Which is which? Which one sounds cleanest?It's strange how everyone convinces me that everything is wrong. Instead of simply listening to the comparison of the devices and writing down whether they can hear the difference.
It depends on the difference, it the difference is smaller than what what humans can differentiate, then yes, the amplifier ( DAC, Streamer, cable, interconnect, power line ) will sound exactly the same. Their are, in the context of people listening to them, transparent.
Such a great analogy, thank you.
You did all you could. The YT vid is even in here.
Thanks for the test. I listened to X and Y a few times, I hear a subtle difference in the treble and upper mids in favor of X. Where is the link to this test?
Comparing these two devices, an AV receiver with a stereo amplifier, is fine in my opinion. The Panasonic contains early PurePath technology from Texas Instruments. It essentially has four Toppings built in - four separate stereo amplifiers. In my opinion, this is an interesting comparison of the development of Texas Instruments' class D technology. Even with the excellent measurements of the Topping and the poor measurements of the Panasonic, I was curious to see how this would affect the sound. The difference in sound is not night and day, as the measurements would suggest. They have slightly different tonal balances, but both sound good.
Definately here is more going on than just comparing two amps:
