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Have any more pics, they look interesting..
An alternative to Maggies is the Eminent Technology LFT-8b. It is also a magnetic-planar dipole (above the 1st order 180Hz x/o frequency, below which a sealed 8" cone woofer provides bass), but needs less power and is more tube amp friendly, both a result of being an 8ohm load rather than the Maggie 4ohm. It is also different from the Maggie in being a push-pull design, with magnets on both sides of the diaphragm. And Danny Richie's OB/Dipole sub can easily be substituted for the ET woofer (or used as a woofer for Quads), for a full-range OB/Dipole loudspeaker at an affordable price.
My open baffle planar hybrid speaker. GR-Research did the baffle design ideas. Got the drivers moded BG NEO3PDR and 2x12 servo subs from GR-Research and BG NEO10's from Parts-Express before BG was sold.
Care to share the crossover transfer curves that you are using this this system?
I am running the dspMusik digital crossover with single pole butterworth HP at 250Hz on the NEO10's. Running the Rythmik HX300 at 200Hz and still working on the best setup between the servo subs and NEO10's. I may have to switch to the Rythmik PEQ370's I have for the 2x12's to get better integration with the NEO10's.The NEO10's and NEO3's are running from ChipAmps being driven with the dspMusik.Very glad I bought the BG drivers when I did.
Greg,Thanks for the feedback. I am not listening loud at this point, but understand the caution. The room is very quiet, so that helps a lot.
My ugly (compared to some in this thread anyway!) 2-ways... Based on MJK's work, these are Goldwood GW-1858's in H-Frames with Audio Nirvana Super 8's on top. Between the two are thin ply boxes containing 50lbs of concrete patio block in each. All the construction is 3/4" baltic birch ply (11 ply). I used a miniDSP for quite awhile but the added hiss in the high end drove me crazy. I recently picked up a pair of Crown XLS 1500 amps on close out sale and now run their internal 24db LR crossovers between the H-Frames and the Super 8's. I've experimented a bit but tend to think the combo sounds best XO'd around 125Hz... No sub is required in this room They seem to blend pretty well. According to the RTA plugin I run in Foobar2000, these kettle drums have significant energy into the 20Hz region (and probably lower). Sorry for video and sound recording quality of my cell phone:https://youtu.be/AIXetGn0x4Q
You dont walk in the room to show the sound nuance and room acoustics, this fixed camera looks like a direct recording from CD, not your speakers.Nice cat BTW.
Please be cautious with such a shallow XO at that low of a frequency with the Neo10s. They're really not mean to go that low unless used in a line source or with steeper slopes. You are at the lower limits where distortion starts to increase dramatically. Not sure how loudly you tend to listen, but that's always a factor as well. If you tend to keep below 90dB, you ought to be OK, I guess.Greg
House was (is) a mess with the holidays going on. Forgot to turn on the auto-video stabilization (don't really shoot much video with my phone) but here you go https://youtu.be/2IFg2BkSn-oAnd that cat?!?! "Go with a single big port", she said, "not some skinny pipe.", she said... And I was just about to follow her advice trying cat litter in the bottom as a quick and easy way to add some mass...
