OP
- Thread Starter
- #61
Well, now that everyone has decided where they stand regarding the LF... is there anything else here that you guys feel is worth talking about?
Frankly, I'm surprised there isn't more interest. Everyone wants to see floorstanders tested but we are circling the drain on the LF. LOL
But, it seems to be the case that when a concern is raised we as a forum tend to latch on to it and circle the subject and overall interest fizzles. I always hate seeing that "echo chamber" attitude in these threads because I feel good discussion is foregone after people grow tired of going over the same subject and lose interest. Not complaining. Just speaking the truth. And it's no different when it happens in one of my own reviews.
So, for the sake of trying to get this thread on track and provide some meaningful discussion about the overall performance - and try to put the "science" back in to the discussion of how we use the data to correlate with what we hear - I'll re-iterate something I discussed in the video: the soundstage height being split between the midrange and the tweeter. Now, I hadn't seen this data at all until after I had listened. But when I played the Joe Walsh track I immediately noticed the height of the soundstage shifted down in the vertical plane. First time I'd noticed such an abrupt transition (I most often notice it to a lesser degree). The vertical contour plot shows what is going on quite well (below). This is the first time I can think of seeing such a clear trend in the SPL radiation shifting from below (or above) the main listening axis. In this case, the SPL is focused at about -80° at 100Hz and trends upward in angle until it reaches and maintains output level at about 30° from 500Hz - 1.5kHz. From there, the main lobe shifts up to about +10° at 2kHz briefly and then settles back down on the 0° (listening) axis.
I took a look at Amir's measurement of the HDI-3600 (note: this also shows a steep LF rolloff, fwiw) and lo-and-behold, the result shows the same trend. I know I looked at the results before but I can tell you that seeing this data never entered my brain. And I definitely wouldn't have remembered something from nearly a year ago (I can barely remember what I did yesterday half the time
). I am curious if Amir heard this split-stage issue when listening since he didn't call it out directly as part of his subjective evaluation but did note this in his graphic (below). Or, for that matter, if any of you other folks who have listened to these speakers have heard this issue. As I said in the review, it was only noticeable on panned music but given Amir listens in mono I honestly don't know how that would translate.
It is also worth noting that the vertical integration of the HDI-3600 is somehow worse; judging by the deep hole in response at the crossover both below and above the measured axis. Assuming apples to apples measurement methods, of course, but judging by the two sets of data I think we both chose the same measurement axis. It's possible the distance shown in his graphic is a factor in this (his is 1.24 meters where mine is taken at 2 meters).
Frankly, I'm surprised there isn't more interest. Everyone wants to see floorstanders tested but we are circling the drain on the LF. LOL
But, it seems to be the case that when a concern is raised we as a forum tend to latch on to it and circle the subject and overall interest fizzles. I always hate seeing that "echo chamber" attitude in these threads because I feel good discussion is foregone after people grow tired of going over the same subject and lose interest. Not complaining. Just speaking the truth. And it's no different when it happens in one of my own reviews.
So, for the sake of trying to get this thread on track and provide some meaningful discussion about the overall performance - and try to put the "science" back in to the discussion of how we use the data to correlate with what we hear - I'll re-iterate something I discussed in the video: the soundstage height being split between the midrange and the tweeter. Now, I hadn't seen this data at all until after I had listened. But when I played the Joe Walsh track I immediately noticed the height of the soundstage shifted down in the vertical plane. First time I'd noticed such an abrupt transition (I most often notice it to a lesser degree). The vertical contour plot shows what is going on quite well (below). This is the first time I can think of seeing such a clear trend in the SPL radiation shifting from below (or above) the main listening axis. In this case, the SPL is focused at about -80° at 100Hz and trends upward in angle until it reaches and maintains output level at about 30° from 500Hz - 1.5kHz. From there, the main lobe shifts up to about +10° at 2kHz briefly and then settles back down on the 0° (listening) axis.
I took a look at Amir's measurement of the HDI-3600 (note: this also shows a steep LF rolloff, fwiw) and lo-and-behold, the result shows the same trend. I know I looked at the results before but I can tell you that seeing this data never entered my brain. And I definitely wouldn't have remembered something from nearly a year ago (I can barely remember what I did yesterday half the time
). I am curious if Amir heard this split-stage issue when listening since he didn't call it out directly as part of his subjective evaluation but did note this in his graphic (below). Or, for that matter, if any of you other folks who have listened to these speakers have heard this issue. As I said in the review, it was only noticeable on panned music but given Amir listens in mono I honestly don't know how that would translate.It is also worth noting that the vertical integration of the HDI-3600 is somehow worse; judging by the deep hole in response at the crossover both below and above the measured axis. Assuming apples to apples measurement methods, of course, but judging by the two sets of data I think we both chose the same measurement axis. It's possible the distance shown in his graphic is a factor in this (his is 1.24 meters where mine is taken at 2 meters).
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