The column collected by her own hands may look and sing no worse than purchased in a specialized store. Moreover, the prices for audio equipment are high, and the design is not always coming to home interior. Also, the audio system will be a good home decoration or a gift to a close person. Collecting column - Creative occupation, requires some technical knowledge of electronics and carpenter skills, as well as understanding the basics.
How to make a column with your own hands - design
The main parameters of the column are strength, tightness, good appearance. Instead of self-tapping screws, Evrovints are used, the walls of the box are bonded from the inside with wooden slats of a square, triangular, sectoral section. Sit raters on glue, designed to fasten wooden surfaces.
Small slits between the walls close up, as the column must be hermetic. As a material for sealing, a paklet is used, wetted by glue. It should be shoved in the gap. If the opening back cover is planned, the window sealant is acquired and they are sampled on the joints so that the cover in the closed position does not give the slots. 
How to make a column with your own hands - speakers
The source of the signal is selected high-quality, it is not recommended to take a low cash category speaker. Also, an expensive option does not always justify its expectation. The greater the speaker, the wider the spread of the sound. Powerful columns have several speakers. A large amount of speakers increases the sound of the speaker. 
How to make a column with your own hands - network filters
Interference on the network (included electronic devices, refrigerator, electric stove, tape recorder, hairdryer) may interfere with the output of high-quality sound, so high-frequency noise suppressants are needed, that is, network filters. 
How to make a column with your own hands - materials
Sound-absorbing materials help filter parasitic frequencies. Without noise absorber, bass is poorly heard, only shidding sounds. The absorber will give the sound right softness. Materials used: syntheps, felt, wool roller (flies). Wat can be mounted on double-sided adhesion. For this, the surface inside the column is sickling with scotch. It also glues on the internal angles, the presence of the sound absorber in these places is very important. In areas close to electronics, wires, stick the "URSA" - the material is not combustible. Materials are fixed reliably, when operating columns, air movement inside the drawer can break the mount with the wall. 
How to make a column with your own hands - Pipe phase inverter
A plastic tube of 5 mm is suitable. To understand how long the tube should be, you need to use two twisted paper pipes, and one is inserted into another. They are placed in a hole for the phase inverter. The next step is to determine the length of the phase inverter. The inner tube moves from itself and on itself, is observed in which position from the phase inverter is the strongest flow of air. The distance from the rear wall of the box to the very edge of the tube is at least the diameter of this tube. Paper tubes are fixed, the desired piece of the pipe is cut down with a hacksaw.
How to make a column with your own hands - legs
Large floor speakers are put on legs. The sound coming out of the column cannot be absorbed by the floor. The smaller the surface of the contact of the legs with the floor, the better. The optimal option is the legs, narrowed to the bottom, similar to the spikes. The devices are screwed into in advance drilled holes at the bottom of the drawer. 
How to make a column with your own hands - wires
The main characteristics of the wires - quality, good screen version from electronic interference (cellular, radio). The foil is used as a screen, the layer thickening increases the decree. Or turn the copper, aluminum thread. The gilded plug reduces the signal loss. 
How to make a column with your own hands - arrange
Properly disposed acoustics will provide an opportunity to take advantage of the entire spectrum of sound, its volume and quality. For speakers with high frequency, the best option will be placed at the level of the ears and away from the wall. The distance from the wall is no less than 15 cm so that the sound does not meet any obstacles in its path. The front speakers must be placed in front of the listener, at an angle of 30 °. Rear speakers at an angle of 90 ° from the front. The free move of the sound wave prevents the open door to the balcony, the loudly included TV, as the overall detail is reduced. 
You need to focus your choice on which columns will be assembled: passive or active. In the conditions of a small space, passive columns are suitable for the placement of the acoustic system, as they go separately columns and amplifier. The active version involves embedded acoustics with an amplifier, which requires more space for location, costs and affects complexity during repairs. It is more convenient if there is a subwoofer separately, then only passive acoustics is collected to solve the problem with sound.
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Nothing !! Have you ever done them? And sold?
If so, you know that it is quite subtle art how to build violins. Do not share subscribers.
Dude chinese cheaper (in 10 times), easier and faster to buy,
than to calculate and build a good column with your own hands, with
this magician in ranks will most likely seem better in sound,
than your 1st homemade)))))
And now in the case:
1. Do you have a hermetic column, or still with a phase inverter? -It actually a big open hole -Then sealant why?
2. You see why the phase inverter?
3. Delicious about the speakers and plugs with gilding)))))
Sorry, hurt !! Why write, what you do not understand, and if in the know, deceive why?
Yes, in line - Answers:
1. FAZOinverter is needed to reduce the dimensions of the column - the speaker radiates the sound and in one, and in the other direction, in the rich columns, the radiation "in the rear" is simply pressure, they are trying to make it with a simphase (synchronous) with the basic with the help of the very phase inverter. It turns out not very like any compromise.
2. Pro dimensions: the perfect column is generally hermetic, but rather large - so come out of the situation using the phase inverter.
3. Plugs with gilding - rzhu)))) - Let you never hear it !! Just a reliable connector and that's it.
4. About the speakers: the fewer, the approx. They have the same interference, resonance, etc.
5. The easiest way - 2 front speakers, each - 2 speakers
1st Broadband, from bass to midrange bottom + "squeaker" -vysokochastotnik, it certainly is necessary to isolate a simple capacitor filter.
6. Design: better not to box - there are standing waves will resonate.
7. Alignment with amplifier: impedance and the frequency response - that these Chinese take: amplifying path - shit, speakers - the identity same, and along-like nicho)))
And - vuyalya-prescription pro! Well, I want to - do!
1. Box column are made of something less "sounding"
loose particle board, but not out of plywood or wood.
2. Speaker -on your discretion, from the USSR recommend 4gd-8e, a good thing, well, or from avtosistem Yes, squeaker -. 2gd40.
Volume 3 - The more - the better. And - tightness! no phase inverters! Yes, better than the rear wall inside the clay smear, with curves that way, and in the rear of the speaker, directly in front of, inside the column, place a cotton ball with a diameter larger diffuser.
Only now I looked 1st video.
Yeah .. I think the author of the article and the author of the video different people.
If it is not - sorry, sorry, sorry ...
I would be lying to one side ..
Although the author has a strong video questions- and about cooling, horn, etc.