husq2100 Posted October 24, 2009 Share Posted October 24, 2009 hey all, having a little time off work and finally getting my home theatre together. I started my rear speaker stands today. Front speakers are JBL Xti-100's, rears are a smaller version in Xti-20's. I cant mount shelves to the area they will be set up and i wouldnt even consider mounting the enclouser to the walls. So stands are needed to get them off the ground and get the direction right. The design i came up with is based on the coffin shape of the Xti series enclosures... the material used is 18mm MDF (medium density fibreboard). they will have a base 36mm thick (2 layers) then a column (coffin shaped from above) 1000mm tall and then a base cut out of 8mm steel plate for the speaker to sit on. The column being hollow will allow me to half fill with sand, which will help with stability and reduce any resonance in the stand. start with 1 sheet 2400x1200x18mm MDF: Link to comment Share on other sites More sharing options...
husq2100 Posted October 24, 2009 Author Share Posted October 24, 2009 use larger front (JBL Xti-100) as the template for the base of stand: Link to comment Share on other sites More sharing options...
husq2100 Posted October 24, 2009 Author Share Posted October 24, 2009 i needed to scale down the enclosure to make the column, as to give it some proportion. it wasnt just a matter of coming in from the outer edge of the base by a determined distance all round. This didnt work. As the coffin is basicly a rectangle with the corners cut off, i did a 1-1 drawing of the outside dimensions of the coffin/rectangle, joined each oposing corner and that gave me the points at which it would scale down. That with a little trig to work the coffin edges and i had what i think will be a good size for the column....could have maybe gone a little smaller but that would have made construction harder. Link to comment Share on other sites More sharing options...
husq2100 Posted October 24, 2009 Author Share Posted October 24, 2009 Festo circular saw and alloy guide i used to cut the sections for the column: Link to comment Share on other sites More sharing options...
husq2100 Posted October 24, 2009 Author Share Posted October 24, 2009 gluing up and nailing the column together. i used PVA glue and 38mm brads in my paslode gas gun. Link to comment Share on other sites More sharing options...
husq2100 Posted October 24, 2009 Author Share Posted October 24, 2009 both halves sitting together(not glued) light pressure on clamps to algin the halves while they dry Link to comment Share on other sites More sharing options...
husq2100 Posted October 24, 2009 Author Share Posted October 24, 2009 will try and get them finished and ready for painting on monday. Serg Link to comment Share on other sites More sharing options...
Guest JohnA Posted October 24, 2009 Share Posted October 24, 2009 looking good so far. Looking forward to seeing the finished product Link to comment Share on other sites More sharing options...
RockandorRoll Posted October 25, 2009 Share Posted October 25, 2009 great design, love the coffin idea have you thought about running some conduit through the centre before filling with sand so you can run speaker cable from top to bottom through the stand Link to comment Share on other sites More sharing options...
Guest JohnA Posted October 25, 2009 Share Posted October 25, 2009 have you thought about running some conduit through the centre before filling with sand so you can run speaker cable from top to bottom through the stand up there for thinking 99 Link to comment Share on other sites More sharing options...
husq2100 Posted November 8, 2009 Author Share Posted November 8, 2009 great design, love the coffin ideahave you thought about running some conduit through the centre before filling with sand so you can run speaker cable from top to bottom through the stand i was thinking about running the wires internaly, but considering that they would have to be sealed very well (which would be hard to do well and not look obvious) and the fact that the bottom of the speaker is only 10mm of the base plate and the terminals are on the back of the speaker would have put bends etc in the wirring....plus these will be moved in and out of the room. down the track if they are more perminant i can use little black cable saddles screwed to the back of the column. Serg Link to comment Share on other sites More sharing options...
husq2100 Posted November 8, 2009 Author Share Posted November 8, 2009 got them pretty much done, just a few more coats of paint to go on...i had more pics but lost them when my cell phone broke. the base was 2 pieces(18mm MDF) glued and screwed togther. I used a 25mm piece of ply cut to the internal shape of the coffin column, fixed it to the base as a locater for the column, which inturn was glued and screwed (from the underside of the base). primmed the MDF and polyfilled the nail holes, all screw holes are not seen. Sanded from 120g-400g, then spray painted with a satin(semigloss) black enamel. The steel plates that fix to the top of the column where etch primmed and sprayed with the same enamel. Serg Link to comment Share on other sites More sharing options...
Guest Posted November 8, 2009 Share Posted November 8, 2009 Hi serg Very nice and a great shape . Cheers Link to comment Share on other sites More sharing options...
RockandorRoll Posted November 9, 2009 Share Posted November 9, 2009 Speaker stands are the best way to save money i reckon. Yours look amazing I understand what your saying about the conduit. I didnt get around to putting it inn mine either for the fact that my stand is a PVC pipe and it wouldnt seal very well. plus if youve got nice cable then you should show it off Link to comment Share on other sites More sharing options...
husq2100 Posted November 12, 2009 Author Share Posted November 12, 2009 all finished, could have made the columns 10% smaller to give better proportions....but all in all they dont look to bad. Serg Link to comment Share on other sites More sharing options...
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