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Item: Polk RC60i in-ceiling coaxial speakers Location: Kinglake West VIC Price: $240 per pair. I have 2 pairs (4 speakers) for sale Item Condition: new in box/unused Reason for selling: Payment Method: Pickup - Cash, COD Only Extra Info: I bought these brand new this year and never used, one box opened to have a look, the other still sealed. I'm selling because the plan for the room we're building has changed from Atmos to Auro 3D and I want hight speakers to same brand as LCR.

Good point. Drivers are 15" and 8". Baffle is approx 600Xx710Hx430W Here's a review of the 8" http://v2.stereotimes.com/post/caintuck-audio-betsy-openbaffle-loudspeakers

Item: Kef Q800ds surround speakers white Location: Kinglake West Price: $550 (selling new for $1450 at Melbourne HiFi) Item Condition: Excellent Reason for selling: see bellow Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: have original box so can post at buyers expense I bought these new about 2 years ago and they have been sitting safely up on the wall used as rear surrounds ever since. I like these dipole rears for 5.1, but I'm looking at an Atmos system now and so needing direct firing rather than dipole surrounds.

Item: DIY open baffle speakers Eminence Beta 15A + Wild Burro Betsy Location: Kinglake West, Vic Price: $500 Item Condition: excellent Reason for selling: Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Built this year, all drivers bought brand new. I'm selling as new listening room is going to be a joint music/dance space and my wife is pushing for something that takes up a bit less floor space. 12mm wool felt attached to front baffle and rear basket with double-sided tape can be easily removed. Never built grills but I did instal neodymium magnets into the front baffle from the rear to leave the possibility for baffles. There is fibreglass fly screen protecting the drivers so grills would be cosmetic only. I estimate raw costs were bit north of $900 incl custom ivory Duratex finish. You would need a seperate xo/amp for the woofers, e.g plate amp.

Item: Kef Q800ds surround speakers white Location: Kinglake West Price: $575 (selling new for $1450 at Melbourne HiFi) Item Condition: Excellent Reason for selling: see bellow Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: have original box so can post at buyers expense I bought these new about 2 years ago and they have been sitting safely up on the wall used as rear surrounds ever since. I like these dipole rears for 5.1, but I'm looking at an Atmos system now and so needing direct firing rather than dipole surrounds.

Item: Dayton Ultimax UM10-22 10" subwoofer driver Location: Kinglake West Price: $250 (new $429.00) Item Condition: excellent Reason for selling: don't need two Payment Method: Pickup - Cash, Extra Info: I bought two of these brand new from theloudspeakerkit.com about 2 years ago, and used them happily before I moved houses and changed to a new dipole system in the new house. The drivers have been collecting dust in the cupboard for 18 month. I plan to make a single sealed sub with one of the two to complement some Dynaudio bookshelf speakers I've just picked up, and sell the one. They are both in excellent condition with no issues apart from needing a dust. Buyer is happy to pick either of the two UM22's. (the photo shows one of the actual Ultimax drivers, the other is stored in another cupboard. The driver in the rear of the photo is an Adire 15" driver for another HT system and not for sale). Don't have boxes so can't post.

Item: DIY open baffle speakers Eminence Beta 15A + Wild Burro Betsy Location: Kinglake West, Vic Price: $500 Item Condition: excellent Reason for selling: Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Built this year, all drivers bought brand new. I'm selling as new listening room is going to be a joint music/dance space and my wife is pushing for something that takes up a bit less floor space. 12mm wool felt attached to front baffle and rear basket with double-sided tape can be easily removed. Never built grills but I did instal neodymium magnets into the front baffle from the rear to leave the possibility for baffles. There is fibreglass fly screen protecting the drivers so grills would be cosmetic only. I estimate raw costs were bit north of $900 incl custom ivory Duratex finish. You would need a seperate xo/amp for the woofers, e.g plate amp.

Item:DIY open baffle speakers Eminence Beta 15A + Wild Burro Betsy Location: Kinglake West, Vic Price: $600 Item Condition: excellent Reason for selling: Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Built this year, all drivers bought brand new. I'm selling as new listening room is going to be a joint music/dance space and my wife is pushing for something that takes up a bit less floor space. 12mm wool felt attached to front baffle and rear basket with double-sided tape can be easily removed. Never built grills but I did instal neodymium magnets into the front baffle from the rear to leave the possibility for baffles. There is fibreglass fly screen protecting the drivers so grills would be cosmetic only. I estimate raw costs were bit north of $900 incl custom ivory Duratex finish. You would need a seperate amp for the woofers, something like this would work well with speaker-level inputs and bass boost. Yung SD300-6 300W Class D Subwoofer Plate Amplifier Module with 6 dB at 30 Hz WWW.PARTS-EXPRESS.COM Yung SD300-6 300W Class D Subwoofer Plate Amplifier Module with 6 dB at 30 Hz

Item: pair passive 30hz tapped horns, Will Cowan design, built by Paul Spencer with brand new still-unused 12" Eminence Definimax 4012HO drivers Location: Kinglake West, VIC Reason selling: Not using. Condition: DIY, never used. Pickup only, COD Price: $500 for both horns and both drivers. Firm. I had Paul build me two of these last year but my plans for speakers took a different direction so haven't had the need for these. The drivers were bought brand new and haven't been installed, other than Paul briefly installing one to measure the finished subs. Some plans and graphs can be seen here http://www.cowanaudio.com/th.html The finish is fairly rough form ply - the subs designed to be out of sight. They would benefit from a sand and paint if WAF is a concern. Here are Paul's blog posts from the building of this actual pair https://redspade-audio.blogspot.com.au/2016/02/30-hz-horn-sub-continues.html https://redspade-audio.blogspot.com.au/2016/02/30-hz-horn-sub.html

Item: Wharfedale Jade SR surround speaker pair Location: Kinglake West Vic Price: $600 Item Condition: Excellent, no issues Reason for selling: going with in-walls with new room construction Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Currently selling for $1440 on sale at digitalcinema.com.au

Item: Wild Burro Betsy-K 8" full range drivers Location: Kinglake West, Vic Price: $145 Item Condition: Perfect. New in box. Reason for selling: Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Bought new from the States this year. I bought these Betsty-Ks and a pair of the open baffle Betsy version not sure if I wanted to build OB or box, ended up deciding on OB. I have not hooked up or listened to these, only one box was opened to establish which was the OB pair. I've been very happy with the OB version which are the same as these except for the bottom end. Price landed would be AU$280, asking half that.

Item: Wharfedale Jade SR surround speaker pair Location: Kinglake West Vic Price: $700 Item Condition: Excellent, no issues Reason for selling: going with in-walls with new room construction Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Currently selling for $1440 on sale at digitalcinema.com.au

Item: Wharfedale Jade C1 Centre Speaker Location: Kinglake West, VIC Price: $450 Item Condition:very good Reason for selling: no longer use a centre channel Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: I was using 3 of these a fronts but no longer use a centre so selling one of them. I have gloss black and black oak wood veneer, don't mind which if these finished I sell. New price of these seems to be discounted down to $1530 at digitalcinema.com.au

Thanks. Hmm, I definitely remember reading at least one online article and a few subwoofer review where they talked up the benefits of stereo sub-bass, stuff about spatial cues being impeded in the signal difference even at frequencies that are on their own non-localisable. I should probably test it myself, but its easier just to buy the most convincing theory

You’re right about that PK. The idea is for speakers to sit on top of diy sub/bass boxes initially, though might be an idea to try subs in their respective corners with speakers on stands. Ideally the separation should be no more than 1/4 200hz wavelength I’m guessing. .