DIY - Two kits using similar tweeter to Tekton


Hi Everyone,

There is a lot more to a speaker quality and sound than the brand of tweeter, but I wanted to get you excited about the idea of making your own. I try to post nice DIY projects or kits I find around the web every now and then. Every audiophile should build at least 1 pair of speakers in their lifetime!

Madisound in the US is now carrying a pair of kits, a 2-way and a 2.5 way from SB Acoustics. A very find Danish designer/Indonesian manufacturer trying to give ScanSpeak a run for their money for less.

https://www.madisoundspeakerstore.com/speaker-kits/satori-ara-2-way-speaker-kit-pair/

The normal markup on drivers in the store is 10:1. If you buy the complete kit you pay 4:1, so a big savings. These are very well liked parts, and the tweeter is uber smooth. This is not the kit to buy if you are enamored of Golden Ear or B&W or Dynaudio.

One big advantage of buying a kit like this is part rolling. You can buy it as is, and then try your hands with any exotic capacitor you like.

Also introduced recently is the 2.5 way design, with cabinets:

https://www.madisoundspeakerstore.com/2.5-way-speaker-kits/satori-rinjani-2.5-way-speaker-kit-pair/

Best,


E
erik_squires
Hi guys,
I concur with Erik's suggestion to experiment with DIY.  The right kit can produce results that will rival commercial designs costing a whole lot more. Many times in fact

Apart from the unavoidable manufacturing costs which entails rent, staff salaries, R&D, rates and taxes, advertising, shipping etc. DIY affords one the opportunity to do things that manufacturers generally can't.
To explain in detail would take pages, but briefly : The crossover as heart of the speaker is by necessity often done as cheaply as possible. I have seen some surprisingly shoddy examples in expensive speakers. For the DIYer seeing as you will be building only 2 sets it is of small consequence to spend $10 on the series cap to the tweeter, whereas the manufacturer will allow perhaps $1

It is also not too expensive to use quality resistors like Mundorf or Mills to replace those noisy sand cast abominations which are almost standard fare in lots of pricey commercial speakers.
Then there is the opportunity to adjust the kit speakers dimensions to suit yourself so long as the overall volume is kept the same and the width is not significantly changed. By this I mean increasing the height of a standmount design to that of a floor-stander. This generally looks nicer than using stands and to keep volume the same the bottom of the box can be filled with sand.
The sand acts as a sink for resonances and adds stability by sheer mass. It will be obvious to most that a commercial manufacturer would never entertain this adding sand idea even apart from increased transport cost.
Mostly when I build conventional speakers I shape some thin veneer at the back of the box into a semicircle spanning the 2 sides creating a 'U' which I then fiberglass and fill the cavities with sand. This stiffens the box tremendously and the shape breaks up standing waves.
Some of the money saved with DIY can be used as mentioned to improve XO and buy quality binding posts, avoiding anything brass, and replacing internal wire with OCC single strand wire preferably soldered in place.
The kits mentioned by Erik I have not heard but have myself used the outstanding value SB Acoustics drivers and had superb results.
What suggests itself to me here is to build the smaller 2-way as per my idea of stretching the cabinet into a floorstander with sand etc. and augment the bottom end with OB servo subs. Drive the tops with a tube amp filtered to HP at about 80Hz and the port plugged and I bet I would win money on some finding their jaw hit the floor :)


@pbnaudio
I did not know about you guys. Your speakers appear to be extremely well engineered. Would love to hear the XmaX and others
I actually happen to have both the LS50 (passive) and the SB Acoustics Ara at home at the moment. The KEF is my personal pair, while the SB Acoustics is on loan at the moment.

My $0.02 worth is that the SB Acoustics is the better of the two to my ears, with better dimensionality and detail overall. The KEF has pinsharp imaging, and a softer top end. Both speakers fall into the warm and smooth category.

The KEF has a tendency to only come alive at higher volumes, while the Ara is happy to chug along at lower volumes. That being said, both speakers are not particularly sensitive and you need quite a lot of power. Let me know if you need more details.

I did speak to the local rep about Beryllium tweeters (they are a drop in replacement for the soft domes used in the Ara). He didn't think that they were a guaranteed improvement as he felt that they were so darn good, that they made the mid / woofer driver pale in comparison. Hmm, kind of reminded me of my ownership experience with the Focal Diablo Utopia when I had them. 

Regards

Eric