Got started this few weeks ago.
Midbass H1571-08 U18RNX/P
Tweeter H1499-06 27TBCD/GB-DXT
Still waiting filter components and drivers, but had hard work with enclosures.
... done so far:
19mm MDF, CNC cut
Some small filling and sanding + white leather bonding
Ports and binding post installed + one layer STP vibration absorbing
Sides, filling and sanding
Sides, painting and sanding
Sides, painted, sanded, varnished and more sanded + varnished
Before i gule sides, i will put more coats of lacquer (3-4 coats) and wetsand it bit more. Lacquer is already like mirror, with pleasure i left color little bit wavy under the lacquer coat.
I've never seen anyone use this stuff before on speaker enclosures. I would have at least put a couple braces, front to back and top to bottom.
DIY Sound Group: Information and Tips
The Laws of Physics aren't swayed by opinion.
This vibration damping material will absorbs vibration absolutely on top of whatever kind of material. Even if the absorbing percent is small, it sitill works. This will binds the box inner part.
Now, there is thin layer lamb wool aslo.
Had a plan to provide more stiffness (3mm layer resin - that what you use with fiberglass) but its not subwoofer and did not used this.
http://www.upload.ee/image/3642048/CAM01713.jpg <- Here is woofer box with resin layer, corners are thicker. And after that, one layer same STP vibration absorbing. It play´s really good!
All white parts have leather. Chocolate brown sides are 3mm bigger (every way).
Speaking of which, can you tell us anything about the crossover? Passive? Active? Are you building it your self?
I did´nt bought complete kit. I ordered onlu drivers... Passive crossover will come soon, one Estonian guy who works with capacitors and this kind of stuff (crossovers and more..) will make it for my project.
I´ll post some more details soon.
Crossover is symmetrical with a 2.2kHz crossover frequency. The crossover point was chosen so that the directivity of the drivers make the overall power response extremely smooth, as can be seen in the measurements. Complexity of the crossover was held as low as possible witout sacrificing any of the audible perfomance. This is possible to achieve, because of the drivers very smooth response. On the woofer there is a simple 2nd order network, and on the tweeter there is a equally simple 3rd order network and an L-pad to trim the tweeter sensitivity. Together they align the phase of the drivers excellent and a gives a smooth interdriver transition. The rolloff of the drivers is steep enough to alow them to work effortless even at high power levels, thus maintinaing the smooth and detailed sound quality at all levels and allowing them to be as dynamic as possible.
There will be Jantzen Audio MOX resistors, same brand Cross Cap capacitors and air cored coils. I belive that the result will be good, but if not so good, then i´ll sell them and change crossover parts and use more better ones.
Drivers and crossovers will cost ~around 190€/per speaker + all other materials for enclosure.
These will be my first decent speakers what i have made. There is still long way to go, I have time for more better projcets. ;)
I have built few more pairs, but I did not had so good drivers there. I had Monitor Audio Bronze BX2 before, also I have chance to compare my speakers with Audes Studio´s.
Here is a bit information about these Audes speakers http://www.positive-feedback.com/Issue1/audes.htm
Even if its a smallish speaker i also think a little bracing would be a good idea. From the drawings it looks like the box sides are completely without support. At least i would put a little bracing on those. You can always experiment with insulation later if needed. They mention 250g insulation material per speaker in the seas paper, so that might be a good starting point.
Yeah, i was looked many-many different drivers. I got good feedback on this set. I had opportunity to order whole kit (drivers and kit crossovers) but I ordered all parts separately and got better price. Also I have handmade crossover now and guy who made it, he knows about these things and he works every day with crossovers and speakers.
If this crossover is poor, I will sell it and he will make a better one, but I am pretty shure that it sounds gooooood.
Madisound offers different crossovers also, "w/ Goertz Copper Foil inductors & Mundorf Supreme" will cost ~200$ extra.
Sound/vibration suppression with layers of different acoustic particular materials is better than one thick material because sound/vibration does not go from other material to another so good like it spreads in one homogeneous material.
You will get much more effect if the materials acoustic particulars are different.
Thats why I used this STP damping layer also in enclosure.
Of course I will report my impressions when i have listened it, but first...
Bracing... of course it would be good, but its still pretty small enclosure and I did not want to overkill it with bracing. Maybe someone can give some small suggestions? I mean that how much, where exactly?
The Laws of Physics aren't swayed by opinion.
Enclosures got some bracing, so they are stiff now.
I made some small test listening yesterday... tweeters are really good, and I read one other forum post where guy said thaht no bass at all, i can´t say it.
I´m really impressed, sound is goood! I will finish some small things today and tomorrow i´ll get new amp, i will play them little more and give some report and pictures.
I wonder how your Seas build would compare to the Statement Monitors of Zaph ZA3.5?
Some new pictures, today i got new amp and can listen them bit better amp quality.
Martycool007 - I can´t say nothing about Zaph speakers, but I can say that these two what I own, they sound really sweet and detailed.
I´ll let you know soon, as I said I can listen them now... I was missing good amp before.
a) do you know of a less expensive kit of electronics that would closely emulate the Seas Prestige kit you are using... such as something from parts express?
b) Did you cut drill the panels yourself... if not what/where did you buy/pay for the cabinetry stuff?
c) Noticed that you used thinner panels than Lee Taylor's original design... reason/effect?
Thanks - hope you love them!!!