denon calibration mic

[TLS Guy]

But it sure beats having to deal with the results of people destroying equipment due to a total lack of knowledge of how an equalizer is supposed to be used. The number of speakers that were cacked when graphic equalizers were common was mind-boggling and this was during the time when most mainstream speakers only had a hint of a crossover.

These aren't for people who come close to the 'serious hobbyist' level of AV use or higher, but for those who want a larger "better sound bubble', it can be OK. I have used it with mixed results- it seemed that leaving the mic in the primary location for two tests worked better, but I preferred to use REW and adjust manually. I even used REW and my ears for distance settings since I would usually hear phase problems.

I don't really think you can Eq a room successfully. The real issue is room boundary effects, and that really in very large part comes down to setting BSC to the position of the speaker in the room. I have found that if your design allows for calibrating BSC, then a speaker will sound essentially the same in the majority of rooms.

As I have shown you here, once you get the speaker set for its boundaries, then the room curve will be excellent.

As I have said again and again, we need to make passive speakers yesterday's technology, which they are. Active speakers will allow for a whole new level of driver integration, with DSP correcting timing errors and adjusting speakers to their boundaries a breeze. This will largely solve dialog issues, and consign the nonsense of room Eq at a distance to the dustbin of history.

 

[highfigh]

I don't really think you can Eq a room successfully. The real issue is room boundary effects, and that really in very large part comes down to setting BSC to the position of the speaker in the room. I have found that if your design allows for calibrating BSC, then a speaker will sound essentially the same in the majority of rooms.

As I have shown you here, once you get the speaker set for its boundaries, then the room curve will be excellent.

As I have said again and again, we need to make passive speakers yesterday's technology, which they are. Active speakers will allow for a whole new level of driver integration, with DSP correcting timing errors and adjusting speakers to their boundaries a breeze. This will largely solve dialog issues, and consign the nonsense of room Eq at a distance to the dustbin of history.

Most people can't or won't position their speakers properly, so these programs exist. I moved my speakers and have enjoyed the sound, even though I have used no EQ. Dialog is extremely natural and when I have heard someone that I know on TV or radio, it sound like they're in the room. Next time, I'll use active crossover with DSP but until then, I'm very happy with these.

It would be interesting to see the major manufacturers get this right but I think they won't because they sell more if people are constantly dissatisfied.

 

[M Code]

I don't really think you can Eq a room successfully. The real issue is room boundary effects, and that really in very large part comes down to setting BSC to the position of the speaker in the room. I have found that if your design allows for calibrating BSC, then a speaker will sound essentially the same in the majority of rooms.

As I have shown you here, once you get the speaker set for its boundaries, then the room curve will be excellent.

As I have said again and again, we need to make passive speakers yesterday's technology, which they are. Active speakers will allow for a whole new level of driver integration, with DSP correcting timing errors and adjusting speakers to their boundaries a breeze. This will largely solve dialog issues, and consign the nonsense of room Eq at a distance to the dustbin of history.

Frankly speaking...
I have little expertise for designing loudspeakers but have done various acoustic evaluation projects with Dr.Toole & Dr.Olive, and have noted certain key discussion design points. 1 point they have always stressed was that the loudspeaker design including cabinet, grille, baffle board and electrical driver/x-over should be as neutral as possible so that the room and its surrounding furnishings have minimal bearing on its acoustic performance. Basically they wanted the loudspeaker to sound the same regardless of the room.

Another loudspeaker acoustic point I learned from Ed May(30 years with JBL & Marantz) he wanted the loudspeaker's frequency response to be Flat on Power basis... Basically the x-over frequency points should be below that respective driver's max frequency, as a drivers starts to beam when maxed out and then having its output dispersion pattern starts to collapse.. Also he would use conjugate circuits within the x-over as to maintain a constant impedance load to each driver.

Just my $0.02...

 

[PENG]

Frankly speaking...
I have little expertise for designing loudspeakers but have done various acoustic evaluation projects with Dr.Toole & Dr.Olive, and have noted certain key discussion design points. 1 point they have always stressed was that the loudspeaker design including cabinet, grille, baffle board and electrical driver/x-over should be as neutral as possible so that the room and its surrounding furnishings have minimal bearing on its acoustic performance. Basically they wanted the loudspeaker to sound the same regardless of the room.

Another loudspeaker acoustic point I learned from Ed May(30 years with JBL & Marantz) he wanted the loudspeaker's frequency response to be Flat on Power basis... Basically the x-over frequency points should be below that respective driver's max frequency, as a drivers starts to beam when maxed out and then having its output dispersion pattern starts to collapse.. Also he would use conjugate circuits within the x-over as to maintain a constant impedance load to each driver.

Just my $0.02...

I read quite a few articles by those experts, but I do recall Dr. Toole did mention the potential benefits of REQ for the lower band up to the room transition frequency. Above Schroeder, his points was mainly about the reliability/accuracy/consistency etc., in the data collection part using those kind of mics. In other words, I had the impression that if there is a system that can collect reliable data for the higher frequency, he may not be against EQ's the higher frequencies. On that point, I wish Flavio is still around AH to comment.