Hi, thanks in advance for any and all responses...I'm just looking to create a semi-nice pair for a tiny room.
I've got a set of BG Neo3pdr ribbons and a pair of Peerless 830875 Nomex woofers and wanted to set them working together.
Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup | Parts-Express.com
Peerless 830875 6-1/2" Nomex Cone HDS Woofer | Parts-Express.com
I'm thinking of using 15uF caps on the tweeters (4 ohms) to control the bump below 5K; the red line is the hoped-for result:
NEO3PDR FR Mod | Flickr - Photo Sharing!
I'm looking at a 3rd-order crossover of 2.5KHz for the woofer, as it is up 2dB at 2K, and because the tweeter rolls off so deeply as-is.
Woofer Xover FR crop | Flickr - Photo Sharing!
What I'm asking after is, not ever having had any actual experience in working with crossovers, will I end up with a more-or-less flat(-ish) response or will I get a bit of a bump at 2-3K? And is there anything you'd advise doing differently, such as a 2nd-order for the woofer instead, or going with a slightly higher overall frequency center.
I should have taken a bit more time shopping in this price range; the BG ribbon is, at least regarding FR specs, slightly bettered by the Fountek Neo 1, which is flatter to 20KHz.
Regards! I'll be hooking these up to my recently-built 3886 chipamp, etc.
I've got a set of BG Neo3pdr ribbons and a pair of Peerless 830875 Nomex woofers and wanted to set them working together.
Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup | Parts-Express.com
Peerless 830875 6-1/2" Nomex Cone HDS Woofer | Parts-Express.com
I'm thinking of using 15uF caps on the tweeters (4 ohms) to control the bump below 5K; the red line is the hoped-for result:
NEO3PDR FR Mod | Flickr - Photo Sharing!
I'm looking at a 3rd-order crossover of 2.5KHz for the woofer, as it is up 2dB at 2K, and because the tweeter rolls off so deeply as-is.
Woofer Xover FR crop | Flickr - Photo Sharing!
What I'm asking after is, not ever having had any actual experience in working with crossovers, will I end up with a more-or-less flat(-ish) response or will I get a bit of a bump at 2-3K? And is there anything you'd advise doing differently, such as a 2nd-order for the woofer instead, or going with a slightly higher overall frequency center.
I should have taken a bit more time shopping in this price range; the BG ribbon is, at least regarding FR specs, slightly bettered by the Fountek Neo 1, which is flatter to 20KHz.
Regards! I'll be hooking these up to my recently-built 3886 chipamp, etc.
Hi ! You should use at least a 2nd order crossover for the tweeter .not the inverse .
Tweeters are far more fragile than woofers ...you're gonna loose that girl yes yes you're gonna loose that girl ...!
Tweeters are far more fragile than woofers ...you're gonna loose that girl yes yes you're gonna loose that girl ...!
Okay, thanks for reinforcing my intuition on that (and yes, the GB datasheet mention the need for a 2nd-order xover). Yep, don't want to pop the ribbon. So probably 12dB for both drivers?
BTW, until recently I spent my time listening on ADAM S4C monitors with the wonderful AMTs, which are now in a 2nd-generation. They're marvelous if anyone is curious.
BTW, until recently I spent my time listening on ADAM S4C monitors with the wonderful AMTs, which are now in a 2nd-generation. They're marvelous if anyone is curious.
Since it will be playing in a little room with reasonably low levels ,and you're a first timer (like me !) ,you can even try a first order for the woofer ,just to eliminate the first break-ups in the mid freq region . Response of the woofer (in box volume ,also) will be second order ,however .
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