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In the Forum: Audio Discussions
In the Thread: Macondo’s MiniMe or about Pilot Acoustic Systems
Post Subject: More musings around the F120APosted by floobydust on: 2/17/2009
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 Romy,

 Not sure I can add much more.... you'll find out yourself of course. Overall, I can not comment on the "enabl" treatment beyond what, Dave, Chris and Bud have said (Dave and Chris are the Planet10 guys). I think I would have tried them first before sending them off for treatment (the before and after experience). As for HF response, they do exceptionally well for their size. I don't find them offensive nor do I find them lacking. I also purchased a pair of the Fostex T90A tweeters to supplement them but never got around to adding them in after spending some time with them (F120A). Perhaps I should try and add them in at some point and take another listen. The frequency plot shows them to be exceptionally flat and well extended but they start droping off past 10KHz and another down-step after 15KHz. Still, listen to them before adding the RAAL and see what you think.

 As you're planning to run them in a limited range, I would still go with a larger box so you have options if nothing else. If you really have your heart set on the smaller box, I would be inclined to make it deeper and leave the back open and stuff it with fiberglass or whatever you normally use. I would also keep the frontal surface to a minimum and taper the edges off to reduce diffraction. The laws of physics will certainly limit their SPLs and (dynamic) compression will set in. Running them FR I feel this happens before 90dB, dropping off the LF should extend them a few dB or more. They do have a tight cell foam surround so this may limit their lifespan, depending on what they used.

 In any case, I'll be interested to hear your impressions on them. After spending some time lots of time with them, I picked up a pair of D5nf drivers.... here's some pictures comparing them side-by-side with the F120A. Enjoy.

http://community.webshots.com/album/561454797HMqgje

 Regards, KM

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