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Hi, sorry for the late reply. My power supply is just a PCB mount transformer (blue thing in the pic). Can't remember specs offhand.

I have a set of B&O Beovox 3705s (for sale in the classifieds). One of them is missing the original driver and has one of these fitted: It sounds okay - not too far off the B&O driver. Just wondering if anyone knows what it actually is and if it's anything particularly special/bad. Any...

Good stuff! Things are looking great. Nice explanation too, although you missed the part about the effect of the 2nd moment of area on the flexural strength. The effects are quite significant as the critical loading you are talking about is the bending moment. With a 1mm thick layer of glass...

Hi all, Just wondering if anyone knows where any of these could be bought by the metre in Cape Town? AWG28 to AWG33 or so. Thanks!

Ha. Ha. Ha. Never! One day I will have a big enough room for them and fix the tweeter and other issues (one of the bass woofers is a bit warped) and they will shine.  ;D

One of the next steps is to invest in a mic and some measuring software so I can get an idea of what's actually happening. I want to augment the system with a set of smallish subs, but some measurement would be useful in order to determine what the requirements are there. Does anyone have any...

Would love to demo them (when they're done done) at a gathering at some stage if people are interested in hearing them. Would imagine two demos that would be suitable, a near field monitoring type demo and a room demo. From what I've heard so far, they excel at the latter. Put them on my desk...

So, a long overdue update. And be warned, it's a long long overdue update. I've been quite busy with these over the past few weeks, but haven't had time to post about the progress, so this will pretty much cover it all. I laminated the 3mm and 22mm baffle pieces to make the 25mm baffle spec'd...

Thanks bbe, that makes loads of sense. Will do. Haha, perhaps Xumbug - but those prices are a tad out of range. Looking to build 2 for less than 7k or so.

Hi guys, I want to build a pair of subs to go with my Mandolins, which F3 at about 38Hz. These need to be cheap and flat and will probably sit in the two corners of my room in line with my desk (which is pretty much centred). Room size 6x4m, and the desk is in the centre of the 6m length. So...

Have been at the thinking - would really like to add to these with a reference type subwoofer setup to handle below 50Hz. Does anyone have any ideas for this? Would ideally like to build it myself. Active probably preferable. Probably about 100W. Maybe 2 of them. Soundstage is important.

Oh yes, still looking for a temporary integrated amp for these if anyone has something lying around that they want to flog. Looking for about 80Wpc. A guy on gumtree has a Yammie RX770 that looks good - pity he's asking R1.9k, which is a bit much for me.

Thanks guys. Noted all advice. Haha - I definitely will finish them. May listen to them for a week or two while I work up the Stoke to get it right first time.

Yes, no doubt. Measured the drivers and other components down to 0.02 while i was cadding the box. Oh also, forgot about the finishing. As per a previous post, I'm going to veneer them with a darkish/reddish wood (maybe rosewood/walnut/blackwood - still very unsure and going to go pick some...

Thanks Ian, can't wait to hear them! Regarding the recesses - I have a question. According to the design drawings and spec for these - the suggestion was to fit the drivers as tightly as possible in the recesses - which is why I spec'd such close tolerances. They weren't way out - probably...

Thanks blizzard. Pretty sure these will be worth it! Shaun, I used a 3d modelling program and generated the profile dxfs for them, and then appended technical drawings with all of the dimensions specified. I'm not sure how comprehensive their range of cutting tools is, or whether they have CAM...

We have progress. Got the CNC components and offcuts sheets from Davidson's on Thursday. Must say - very efficient and cost effective. Decided to buy sheets for the 22mm and 3mm MDF and 22mm birch ply parts. Have a lot left which I'm sure will be useful. Came to about 2k for material and...

Very interesting! Thanks for the link. I actually wanted do an active build of these first - but the theory and energy step up was a bit beyond me when I started on this path (having bought the amp components already). Definitely want to try an active version, at some point with the design...

Very good option! Thanks for the idea.

Any ideas about the biamping DAC thing guys? Sitting here wondering...