Jason, John, Bhagi, Ed, thanks for the comments. 
Addressing a few others more specifically:
Thanks for the kind words, Sonnie. And a big thanks to you for the spread sheet you’ve provided for us on your BFD Comprehensive Setup Guide. It was a snap for my wife to modify it for 1/12-octave readings. Without this great resource I’d probably still be trying to figure out how to get some decent response charts up and running.
Oliver,
It’s hard to say definitively without trying it first hand, but Ed is right: The PB10-ISD already has a built-in high pass at 20Hz, so it’d doubtful that adding another on top of it would help.
Compare the response I got below 30 Hz from the PB10-ISD in the small room vs. the large room. As you can see, it ramped up considerably in the small room, almost 12dB/octave. So the filter that worked in the large room might not have worked as well in the small room.
As I noted in the review, it’s best to experiment with the filter yourself. Every room is different (as you can see by comparing my small to large room charts) and you can’t automatically expect that my solution will work exactly for you.
By the way, a great way to incorporate a high pass filter on the cheap is to pick up a used Rane PE-15 parametric equalizer on eBay – they usually sell for under $75. The low frequency filter can be set for shelving, and you can adjust both the turnover frequency and the amount of slope.
Steve S,
I couldn’t get the links to work (I added “www.” to the front). It might be better to post the Item #.
Regards,
Wayne A. Pflughaupt
Addressing a few others more specifically:
Thanks for the kind words, Sonnie.
And a big thanks to you for the spread sheet you’ve provided for us on your BFD Comprehensive Setup Guide. It was a snap for my wife to modify it for 1/12-octave readings. Without this great resource I’d probably still be trying to figure out how to get some decent response charts up and running. Oliver,
It’s hard to say definitively without trying it first hand, but Ed is right: The PB10-ISD already has a built-in high pass at 20Hz, so it’d doubtful that adding another on top of it would help.
Compare the response I got below 30 Hz from the PB10-ISD in the small room vs. the large room. As you can see, it ramped up considerably in the small room, almost 12dB/octave. So the filter that worked in the large room might not have worked as well in the small room.
As I noted in the review, it’s best to experiment with the filter yourself. Every room is different (as you can see by comparing my small to large room charts) and you can’t automatically expect that my solution will work exactly for you.
By the way, a great way to incorporate a high pass filter on the cheap is to pick up a used Rane PE-15 parametric equalizer on eBay – they usually sell for under $75. The low frequency filter can be set for shelving, and you can adjust both the turnover frequency and the amount of slope.
Steve S,
I couldn’t get the links to work (I added “www.” to the front). It might be better to post the Item #.
Regards,
Wayne A. Pflughaupt
