Paul, I agree with everything you said.
Perhaps I was unclear. My suggestion was not so much intended to ask whether you hear a difference or not, but was intended to discern whether you actually prefer the resonators or not, making some less than perfect effort to control for bias. If the buyer likes the "blind" effect, it seems to me that is what counts.
Also, if the resonators do make a piano sound more natural, it should be measurable at the speakers. I'm not talking about the perpetual argument over measuring THD or the argument about measuring a single component without regard for its interaction with the system in which it resides. If the resonators make a piano sound more natural at the speakers, the effect should be measurable. Has anybody done this and published the before and after measurements? Perhaps I am alone in this, but I'd really like to see the measurements.
In fact, I'd love to see somebody: a) record various piano strikes on an actual piano and record them and measurement them with something that measures transients, decay and specturm, and b) play it back through their system with and without the resonators in place. It would be interesting, at least to my compulsive audio mind, to compare the measurements of the three. Testing the system without the resonators would tell you how the system differs from the actual piano (of course, you would have to measure the decibels of the actual piano and set your volume control to same when testing the system). Testing with the resonators and comparing it to the measurements of the actual piano and to the measurements of the system without the resonators would tell you what, if any, sonic attributes of the actual piano were restored by the resonators.
Lastly, this would be a lot of work, so I imagine its easier to argue about the whole thing. Not that we wouldn't argue about the test results. Hmmmm. Jeff
Perhaps I was unclear. My suggestion was not so much intended to ask whether you hear a difference or not, but was intended to discern whether you actually prefer the resonators or not, making some less than perfect effort to control for bias. If the buyer likes the "blind" effect, it seems to me that is what counts.
Also, if the resonators do make a piano sound more natural, it should be measurable at the speakers. I'm not talking about the perpetual argument over measuring THD or the argument about measuring a single component without regard for its interaction with the system in which it resides. If the resonators make a piano sound more natural at the speakers, the effect should be measurable. Has anybody done this and published the before and after measurements? Perhaps I am alone in this, but I'd really like to see the measurements.
In fact, I'd love to see somebody: a) record various piano strikes on an actual piano and record them and measurement them with something that measures transients, decay and specturm, and b) play it back through their system with and without the resonators in place. It would be interesting, at least to my compulsive audio mind, to compare the measurements of the three. Testing the system without the resonators would tell you how the system differs from the actual piano (of course, you would have to measure the decibels of the actual piano and set your volume control to same when testing the system). Testing with the resonators and comparing it to the measurements of the actual piano and to the measurements of the system without the resonators would tell you what, if any, sonic attributes of the actual piano were restored by the resonators.
Lastly, this would be a lot of work, so I imagine its easier to argue about the whole thing. Not that we wouldn't argue about the test results. Hmmmm. Jeff