Mark Audio CHR 90 - Ideal Frequency Response?

[Stal]

I was taking a look at the MA graphs for various drivers (as you do) and I was struck by how useful the CHR90 frequency response could be.
First you have the built in baffle step response which all MA fans will be familiar with. Then we have a dip that is centered around 4kHz which seems to match up to the Fletcher Munson curves. Then there is a bit of a boost at around 10kHz which may be useful depending on your age.
Anyone else think this dip at 4kHz may be a good thing?

 

[Ken Newton]

This plot is undoubtedly directly on-axis. That dip @4kHz, and rise @10KHz may change even 15 degrees off-axis.

 

[nandappe]

Dear Stal,


Sorry, I don't know the built in baffle step response.

I measured the frequency response of MA's 5" driver, and there is a dip at 4kHz.
Why is there a valley at 4Khz, I don't know.

It seems that he made a mountain above 10kHz on the assumption that he would listen off the axis.

 

[Logic800]

Interesting. Do you also have a graph for the Alpair 11ms? Thanks.

 

[nandappe]

Sorry, there is a graph of MAOP11.

 

[Logic800]

Thanks for looking nandappe.

 

[planet10]

Without knowing the off-axis you can tell little fron the on-axis alone… you can guess. I the end you have to sit down and listen.

dave