Shouldn't that be achievable with the pots on the front? And thanks for sharing your insights on this speaker. I picked up a pair last fall and have been having some fun with mine.
To the OP - if you're doing active you should be measuring frequency response. And I think part of what auricgoldfinger's saying is there's no one size fits all approach here. So chucking it all in to just get a different set of speakers might not get you any further ahead. I would think one of the benefits of going active is getting proper room response which is achieved by measuring (and a lot of trial and error). They're nice speakers, if you like the way they sound I would stick with it. Adding some protection for the drivers is a good idea unless you live in Japan, the replacements are pretty expensive.
Hi spiral scratch,
No problem, I'm happy to contribute. I bought my pair when I was 23 and now in my 30's I'm still uptmost impressed with them.
The short answer is no, the control cannot fix the response in the 300-900Hz band. The reason is the pad is a line impedance matching attenuator with two conducting tracks and wipers which keeps the crossover and load seeing the same impedance as the level is changed. As the dial is turned down it attenuates the entire pass band of the midrange like a volume control. That is to say, adjusting the level of the mid doesn't change any smaller desired band like an EQ would. Below, the plot kind of shows the elevated midrange, but I find it sounds best this way with the dials set to normal.
This measurement was taken in the middle of a room, but not in my listening room. Tons of reflections, but I use this spot because the room doesn’t get changed around.
I used Littelfuse 251 series 500NRTIL 500mA, very fast acting fuses. They go open exponentially faster as the current is increased. At 400% overcurrent, 2A (about 28W with the driver's 7 Ohm min impedance) they open in about 20-30 milliseconds. Music has a crest factor so one can get pretty loud before they open. The measured cold resistance is 0.42 Ohms, no reactive properties detected with an LCR meter. The 630mA version are .33 Ohms and the 375mA are .54 Ohms.