listening and listening again to Hi-Fi systems and home theater with a commercial, I realized that while the electronics (DVD player + amp) are well made, the same can not be said Speaker dedicated to them, unfortunately, in my opinion designed and constructed in order to complete the installation and nothing more, and while I, as a purist simple stereo turn up their noses listening to the noise and not music, I thought the other to myself why not design a pair of small speakers able to square the circle?. Let me explain where a Pincopallino anyone after having bought and spent good money for your home theater system, full HD and so on and so forth, because he has to put up with mediocre sound (at least that which comes from the front speakers), which unfortunately has the power to "boxes" worth little to the rest of the system?, And also why the audiophile who wants to listen his music has to divest of the title "HI FI" perhaps because he has not enough space? Here is served!, Aerospace nothing for charity, but a simple pair of small speakers built sensibly, respecting the fees payable and the experience that people like me, for over twenty years designing and building speaker systems for home and car use . But we can specifically, the heart of this system revolves around two of our most Italian nice woofer Ciara, signed CW 100 10-inch nominal diameter, they are for car use but there is nothing, as I did use for HI FI households. Well, once extracted the parameters (I do not trust much of the datasheet), I simulated various loads, and I realized that what suits them best is the bass reflex!. Simulation and comes out a little book given to about 80 Hertz, with a slowly declining trend at low frequencies, all confirmed during play. The doubts I had about the tweeter to be used in this system, I did spend a couple of sleepless nights, because despite having a nice pair of wooferotti however, also quite powerful and performing, I did not want to spend a lot of money for the same tweeter, also because they, the woofer due to their small diameter, are capable of expressing frequency well beyond can make a larger woofer, and since I had a pair of small neodymium tweeter, also for car use (Autosonik) I wondered why not combine it with this system? Here, sketched the case, time align the woofer and tweeter, as well as placing them in asymmetrical and symmetrical, micofono and spectrum analyzer in hand I made some measurements, and first impressions were that the bass had a piccaccio to about 3500 Hertz, tweeter and woofer were much more exuberant, obviously with a good dose of patience, and with the help of PC, with my ears that I was able, through the simple but not trivial at all crossover designed and created by me, to make the fairly linear frequency response from 70 to 20,000 Hz + - 3dB, I never tire of saying that the crossover is the brain of a speaker system, but the basics and then the final result can be attributed more to the goodness of the initial project and the goals you want to achieve, filters with dozens and dozens of components to linearize phase response and if a hand lead to some results, from another there is always a price to pay, and the latter almost always penalizes efficiency, and good basic design, filter + or - for a simple linear system and not so much in exact efficiency (Especially with small parts, as in this case). The implementation of the box is mixed, chipboard and plywood 1 cm, the interior has been insulated to the project with rock wool, absolutely non-toxic likely to break down any spurious frequencies that would compromise the acoustic performance. The outside however, once smoothed the edges and covered with several coats of sealer Verica and stucco was finished with textured black scratch-resistant coating, making the entire inserted into any domestic environment, I also arranged to place the base of the speakers, the adhesive velvet, so as not to ruin any type of mobile will be supported where these objects. Single habit in all my creations is the absolute absence of front covers, a cloth because any noise, even the best there is, causes the colors to the sound, two because I may say so, I also like watching as well as hear the speakers as they play. The photos I do justice to the reality of craftsmanship. Listening although very subjective, I will try to mention some little impression. I state that I listen to mostly pop music and dance (but not absolutely despise the other genres), I listened to long this pair of speakers, and the first impression I have, even changing from time to time generally is the airiness, the fine detail and the credibility of the message sound that comes out, they are not efficient systems (89 dB W / m estimated), but given the simple (but then again not trivial) crossover, are not so tricky for the amp that will drive them, in fact any amplifier that supports the 4 ohm can digest it very well, giving good watt enough, I wish you good listening, remaining available to answer any questions.
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