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(25GDN4 or 4a32)
The wide linearity (frequency response) of acoustic systems is an important aspect of the design of the Guchnomov station.
As the speakers of acoustic systems exhibit large peaks and valleys in the frequency response curve, the frequencies created by the Guchnomov team will sound louder and lower. This is subjectively perceived as a disruption in the tonal balance of the sound of woodwinds and string instruments, resonances or vibrations in female vocals that are created due to the displacement (throwing) of sound images between acoustic systems..
HF warehouses, which are replaced by a small diaphragm, HF dynamics with a small amplitude, simply physically fade away at the sound stage between acoustics and hearing.
The same applies to the low-frequency range, especially to low-frequency speakers of the compression type with a small diffuser diameter.
With low levels of soundness, it is no longer possible to lack the elasticity of the wind between the acoustic systems and the hearing. In such situations, in order to adjust the frequency response of a low-sensitive acoustic system, it is necessary to combine different timbre blocks, frequency response correctors, tone compensators, etc., so that the noise of the sound creation is lost. But there is another radical method of pure enhancement of sound creation, both with small and with great efforts, which allows for a wide dynamic range.
This is an advancement of the external QCD of acoustic systems, including the use of horns (horns), which allows the sound pressure of the diaphragms of the acoustic speakers to be satisfied from the external loudspeaker core.
The horn design changes the nonlinear dynamics, resulting in greater unevenness of its frequency response.
The current graph of the upper line, which indicates the frequency response of the cinema theater machine 25GDN4, is muted by a microphone from the output of the rear speaker, then.
From the rear side of the diaphragm, which is located in the acoustic design “Rear Horn” Fig. No. 1.
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It is clearly visible that the real frequency range that is being created, beyond the level of 10 dB, extends from 40 Hz to 650 Hz (the rear speaker acts as an acoustic filter), and 150 Hz rises behind the level to 110 dB, good!!!
The lower graph, this harmonic series, dynamics from the rear horn, the distortion (THD) at a frequency of 200 Hz changed to 0.14% (the power of the horn changes the distortion), which is even better! The output phase from the rear horn is inverted and added to the front one. When listening to a speaker system with tube amplification, the sound is detailed and great, the bass is smooth and springy.
The real frequency response of a vimiryan with 6 kHz, a modified horn high-frequency speaker PT25B-2 (magnetic system, re-horn chamber, etc.).
It has low unevenness (the positive power of the horn vibrates the frequency response) and greater sensitivity of 102 dB/m.
Double horn acoustic system “Horn 4a32_PT25B-2-S”. Frequency range 40Hz-20kHz Sensitivity 96dB/m The horn high-frequency speaker PT25B-2 has a new diaphragm made of natural seam installed, and the magnetic system has been stripped of excess. In this
acoustic system
The wide-range cinema speaker 4A32 operates in the entire frequency range, and the high-frequency speaker PT25B-2-S is connected through a high-acidity capacitor with a capacity of 1 Mkf in the same phase with 4A32.
The 4A32 cinema speaker with a rare earth (lithic) magnet will sound better, lower ferrite.
It’s also understood as “ferite sound.”
Do not “sharpen” the body for the next set of dynamic heads
This task will be completed in front of you with a description of how to independently prepare an acoustic system, without the need for any scarce or expensive components.
A number of options have been tested - closed housings, housings with phase inverters, bandpasses and horn housings.
The rest were best suited, but the CORRECT horn housing was completed with labor-intensive design and preparation.
Therefore, there were differences in the arithmetic mean similarity of the horn, which is practical for all types of speakers, so that one trend was clearly visible in the design - the rise of the horn is close to 3 meters and the horn is to blame expansion plus a pipe at the end.
The horn can be horned in different ways, for example, take the Hitchcock horn system, and the end of the horn itself lies below the desired resonant frequency.
You can calculate the horn voltage using the formula L = 344/F, where 344 is the speed of sound, F is the frequency of resonance. The fragments of the dynamic head are machined to the point of hearing the signal at the output of the horn in the antiphase, and also the alarm of the wind for the horn on the opposite side of the diffuser. To that dovezhin of the mouthpiece that came out, share in vain, then. The vibration of the sound horns is destroyed in phase with the front side of the diffuser exactly 180 degrees. In essence, this is how the SOUND BARREL came out. In this way, it is possible to fit a universal body just under the bass lantern and the tension must be kept away from the victorious boost of tension and dynamics. Therefore, the remaining set of dynamic heads for a power of 400 W looks like this: a low-frequency head - a subwoofer for open-air acoustic systems with a diameter of 31 cm and a power of 400 W maximum, and a set of two 16 cm double dynamic heads for mid-high frequencies 100 W maximum short-hour power. However, here we must respect that These actions are ensured both by indicators of output strength and protection from overheating, as well as by systems for smoothly increasing strength at the moment of switching on.
The basis for acoustic systems of high tension lies in vicorized materials - for tension up to 150-180 W, 18 mm chipboard is used, for pressure up to 300 W - 22 mm chipboard or 18 mm plywood, for tension up to 600 W plywood 22 mm . 22
Opening the blanks in such a way that the thickness of the material is ensured even when the back wall is prepared, other dimensions do not change.
When choosing a material, it is necessary to make allowances for the fact that in the late stages of release the chipboard is noticeably damaged, so for voltages over 150 W it is strongly recommended to go through the relatives and find out and old wardrobes, book-shaped wardrobes and sideboards.
In chipboards up to 90 years of release, the thickness is richer, it is more important that they are formed, the fragments of the vicorized components that were glued at that time became much smaller and the friction was compressed much more strongly.
To spare, you can use an old wardrobe made from thin chipboard mm. It is important to remember that fragments of such material were used to wind the speakers with a power of 800 W, having installed a crossbar in the middle of the woofer box. Perhaps, about the pina, it’s good to say a spaghetti sliver. The first thing that is good about everything is that it has very good power to glue. This way, expanding in all directions, it will completely fill all obvious gaps and crevices. Reducing the thickness of the penis in a cold state can be done simply - the more you get out of the balloon, the less you will increase in size and therefore the greater the strength.І return effect - the more you press on the outlet valve the faster you leave the balloon, there is apparently more swelling and an increase in size.
The result was the result of nasty mechanical devices and nasty sound-absorbing material. For greater clarity, we introduce three concepts about thickening - SHILNA when the foam is released from the balloon with minimal fluidity and is more like sour cream or cake cream and increases in size as much as possible, MIDDLE
- when the foam is released from the bottle with medium liquidity, it immediately begins to increase,
Fluff - when the foam is released from the balloon with maximum fluidity, it immediately becomes richer and begins to increase in size. Let’s turn around and select the mid-high frequency box.
Parts 2 and 3 are fastened with their ends to part 4 using self-tapping screws 3.5x45, the contact area between the parts is coated with the mounting foam of a strong warehouse, then to the structure that has come out, part 1 is fastened in such a way that
The diameter of the openings for the fans is 80 mm, to say the least, although fans with a diameter of 90 mm and a rate of 0.24 A are sold, the axis is ideal for the SOUND BARREL 550 booster. There are also fans for with a diameter of 80 mm and a flow rate greater than 0.12 A These fans are better suited for boosters SOUND BARREL 300, SOUND BARREL 300M and SOUND BARREL 2x150.
Open under the dynamic heads to see obvious patterns, which are always painted on the packaging boxes of car speaker systems.
As a result, a structure appears, aimed at baby 2. Figure 2 Exterior view of the mid-high frequency box for an active speaker system. A few words about making round openings.
There are plenty of ways to do this, but the most accurate one is still a jigsaw.
Having reached the edge, make a sized stake of approximately 10 mm, drill a hole with a diameter under the jigsaw file and begin to saw in a spiral, the file is placed on the mark.
Please note that for cutting round openings there are special files for jigsaws.
You can see them by looking -
After opening the box, it is necessary to wipe it with a soft cloth and carefully remove all the tires; splinters, when opening the mounting holes of the dynamic heads of the tires, can be sucked into the acoustic system of the speakers, It’s really not good.
After marking all the necessary openings for attaching the speakers and attaching the booster to the radiator, repack the dynamic head in a plastic bag and do not drill it further Open the bypass.
Now you need to make 4 parts, the dimensions indicated in Figures 3 and 4. They serve to create the inner part of the horn.
Then the inner part of the horn is installed between the sidewalls.
During installation, the head of the washbasin - part 5 is located at the edge of the side panel exactly to the width of parts 13 and 14, with a difference of 100 mm.
Suorka vibrates with screws.
Do not forget to drill the opening, and for greater rigidity in the material, a screw with a diameter of 4.2 mm should be passed through a screw, and the axis where the self-tapping screw is screwed is only a drill with a diameter of 3 mm.
For small piece 6, right-handed, open ALL openings in part 9 with a diameter of 4.2 mm, and at the ends of pieces 11, 12, 6, 5, 7, 16, open ALL openings with a diameter of 3 mm.
The contact area between the chipboard and each other is coated with strong foam.
After the inner part of the horn and the sides are folded, the installation of part 15 between part 5 and part 6 is filled with foam, and starting from the connection point of parts 5 and 6, the foam is thick, then the middle and top This ball is made of fluffy stumps.
Thus, the heterogeneity of the pin completely turns off the resonant effects of the “visor” 6 and more strongly connects it with detail 5.
Parts 13 and 14 are fastened to part 5 using additional screws 3.5x55.
Then the back cover (Fig. 7) is wrapped in cellophane with such a structure that the cellophane is on the inside of the cover and the cover is attached to the body using 3.5x55 screws, but not completely, but only the upper and lower parts of the body . As soon as all the openings are drilled, the lid is removed and the sides of the cook's mouth are filled with thick foam from the first ball, then from the middle foam. First, fill the lower part, roll between the parts 13-12-10, attach the back cover and cover the pins, then turn the body of the speaker system over and remove it.
and close the back cover again.
After the stump is caught, the back cover is removed again and a kiss is removed from it, which protects the cover from sticking to the stump, poured into the corners of the horn.
With the help of a stationery cutter, press a quarter of a stake into the sample shape, then.
cut off excess stumps until the baby looks like it 8.
Next, drill in the rear station and open for installation of the line input socket and connection socket up to 220 and the linear input socket and the line socket.
On the page there are 9 indications of the attachment of the wire to the line input, which is caused by the screen weave and the stronger the better.
Malyunok 8 Prepared the partitions and rounded the horn.
After this, secure the back wall, smearing the ends of the parts on the body with strong foam so that they stick behind it. The first axis is now the rear wall is completely closed - along the perimeter and up to the horn partitions (Figure 9, left) Next, or from a thicker chipboard, or from plywood, a sheet measuring 410x430 mm is cut, which will serve to secure the low-frequency dynamic head of the speaker system.
Next, the principle diagram is drawn to the little one 10. The “ROOM-STREET” mode switch, the output pressure indicator, as well as the hemline switch are installed on any sheet material - fiberglass, plywood, sheet and fiberboard, plastic.
It is necessary to firmly secure this panel to the MF-HF head box, so that when dismantling this box, the controls and indications are no longer connected to the booster block and do not block more than half of the window between the jack horn and box of mid-high frequency speakers, fragments and due to overheating of the booster radiator straining. Malyunok 10 Principle diagram active acoustic system and visual.
external look
Well, the axis is in control and that’s it – You independently collected the body of the horn active acoustic system, the tension of which is due to the vicorized material and the installed tension booster.
ALL CHAIRS ARE POSSIBLE IN THE SPL FORMAT.
YOU CAN USE THE SPLAN 6 PROGRAM.
WHEN THE CHAIR IS DESIGNED WITH THE TWO PROGRAMS, THE CHAIR IS DISPLAYED AT A SCALE OF 1:10.
So you can erase it with a ruler and transfer it to a material, sometimes of a small size.
NOTE.
When fans are installed directly on the radiators, their tracks should not be installed parallel to the radiator, but vicor washers, stands, etc.
Place the drops in a vertical plane, at 10...15°, in such a way that the wind flow passes through the fins of the radiator to the point of leakage.
In this way, the air circulation in the middle of the system and the air heating will be turned off (Figure 11).
Figure 11 – orientation of the fan to the pressure booster radiator.
The lower openings of part 1, intended for installing fans, should not be round, but should be made into one straight curl of 80 mm and a width of 200...250 mm.
If nothing makes sense, then marvel
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Don’t you know, why are you kidding?
As I tell you, whether you are a music lover, there is something that stands for the transmission of not just music, melody, but for the transmission of the emotions of the Viconian.
Horn acoustics cope well with this issue.
Horn acoustics are not installed in the same way as they are designed.
The speaker is not very large and is connected to a horn, which increases the volume of its sound.
It is possible to equate with this outburst if a person, in order to shout to the spivozmovnik on the great rise, folds his hands into a mouthpiece. Note. If you are thinking about adding horn speakers to your car, we hasten to get ahead of you: the difference between good and bad horn speakers is quite significant, but not with traditional options.
Cheap
horn acoustics
, Prepared by an undisputed vibrator, we cannot in any way act as a purveyor.
These cheap options themselves have given rise to sentiments about those who use horn acoustics, but their sound is compromised.
If you have clear horn speakers, it will always be expensive to install them.
The smell is always caused by Alnico magnets and diaphragms made of exotic metals.
The horn acoustics are always assembled to meet the required tolerances and dimensions.
In a word, such a production technology cannot meet everyday compromises and cost reductions.
- Let's point it out.
A two-inch TAD compression driver, which is included in all models of Cesaro horn acoustics, costs about 1 thousand euros. - At the same time, the most expensive tweeter today has a Scan Spec with a beryllium diaphragm and costs about 600 dollars.
Horn acoustics for cars - these are unique speakers, released in series. - Another ten years have passed and the famous American engineer is creating a new design for horn acoustics.
Paul Klipsch himself (that was the name of the engineer) believed that horn acoustics make it possible to create musical compositions with even high viscosity.
- Note.
- The engineer himself starts a company with the development of horn acoustics, which is today's light leader.
- The company was called Klipsh, and speakers of this type were called “Klipsh”.
It’s great that music lovers have immediately “bitten” that the “clips” create music in a special way.
In a word, such a production technology cannot meet everyday compromises and cost reductions.
- From now on, horn acoustics becomes the choice to fill a narrow stake of popular music;
- The other half of the last century was marked by the appearance of new noses.
- In addition, there are new developments and new approaches for processing and enhancing the sound signal; Having reached the apogee of modernization and thoroughness, people began to realize that what sounded like this did not give in to “zhizness.” And then, it seems, a lot of people have turned to horn acoustics, and about three years ago the real boom begins.
More magical sounding horn systems Those that use horn acoustics to sound in a special way are quite difficult to move..
- And for such a sound, everyone changes their minds.
First of all, horn acoustics have high sensitivity.
- This makes it possible to create the finest nuances and convey the emotions of the Viconavian;
For the rest of the time, among horn acoustics speakers, I would like to closely see the Italian company Zingali.
The engineers of this company have created an original horn-type transmitter that instantly produces midrange and high-frequency frequencies, and at the same time looks great.
Horn acoustics in cars It’s not good to say that all traditional car speakers are not allowed to reach high vigor
sounding.
On the right, not in a crowd, but in a cramped salon.
- The horn axis gives a chance to significantly enhance the sound, creating the effect of presence (for example, sitting in a studio or concerts).
- Everything can be explained simply: the horn rises larger, as the sound fluxes expand, and at the same time the volume of the sound increases and the characteristic melodicity increases.
Technical solutions for placing such acoustics in a car can vary:
So, the most popular way is to install the boom machine in front, frontally on the station of the body, in the middle of which the main hull is installed. This is the exit door named; Another option uses a horn system, which is a low-frequency sound system.
It is placed around a large building.
The same proportions follow the tweeters and midrange speakers, which are also placed in a separate housing next to one side of the other.
Advantages and disadvantages of horn acoustics
This is where we end our look at horn acoustic systems. Recently they began to be installed more and more often in cars with their own hands, vikorista and there is enough theoretical knowledge for winemaking pushing harder, attached to traditional acoustic systems.
Even though no one knew about transistors, low-power lamps were used for power.
Before speaking, for this very reason there is still a living stereotype that horn speakers are most different from tube boosters.
More sounds?
- Only through horn acoustic systems!
I think that horn speakers work best with tube amplifiers.
It is correct, especially, to look at two types of horn acoustic systems.
The first one concerns the horn models and the subwoofers.
To an unprepared person, the stinks can impress with their childlike dimensions, chimerical external appearance and gloomy air.
Such devices themselves work best with low-power lamp boosters.
The sound aura that the listener will feel will be incredibly penetrating, spiritual, capable of timbres and tones.
The company was founded by Paul W. Klipsch, who was both the main ideologist and the explorer of rich fates.
Of course, the most popular and famous acoustic systems produced by Klipsch are the Klipschorn model.
The stinks were the first columns, discovered by Paul Klipsch, and, most importantly, the donnies are vibrating with success - they are already over 60 rocks!
For the entire hour, the model did not recognize the number of daily changes, and not to mention those that initially its structure was extremely far away.
In addition, it is a good term to note that the popularity of the model is not subsiding.
A limited edition of 200 pieces - the 60th Anniversary Klipschorn - was recently released.
The Fostex company was initially created to sell components of speaker systems to householders and dealers in Japan (in this country there are a large number of people who design and build speaker systems for homes with a different design, leading to current sales of components gives the majority of the company's Japanese income).
It should be noted that Fostex was one of the first to develop and introduce RP (Regularphase) technology, which ensures clear sound with high sensitivity and a wide dynamic range, which has immediately won praise from the world. popularity
The dynamics of this company are correlated with the wide popularity of electroacoustic systems due to the good price/compactness of the wide range and was recommended by one of my main mentors, comrade Oleksandr Kharkov, who has produced more than a dozen acoustic systems, obviously has enormous knowledge in the selection of speakers.
Just before the production of one of my projects - dual speakers on Visaton W200 and Vifa XT25TG in a designed quarter-wall pipe (TQWP), my acquaintances ordered a pair of FostexFE206En at a very attractive price.
Without being bothered by the long-standing desire to listen to horn acoustics on the Fostex themselves, it was decided to change priorities.
The variation of Tilya-Smol's parameters showed similarity with the factory ones within 5%, which most speakers from such companies as Vifa, Visaton, Seas, etc. cannot boast of. The sound of the speakers appeared even simpler on one side, but at the same time there were even logical and rational solutions for the absolute brightness of the sound on the other side - a massive magnet (more diameters, lower than the 12" woofer 150GDN from Klever 75AC), soft textile suspension and a bungee centering washer, a lightweight diffuser made from banana tree fibers, as well as the presence of an even lighter composite melt on a sawdust mixture (used as a material for dome high-frequency speakers) for better production of high frequencies allowed sensitivity of 96dB/1W for horn design alternative option For.
lamp booster
The concept of a single-smooth AC is even more attractive considering the obvious advantages over its rich-smooth analogues. In the middle, you can see the presence of phase disturbances and time delays, which are detected through the corrective filters, between the speakers and also a significant acceleration factor (the magnitude of the mass of the loudspeaker system, for example, in two black speakers, if you need to connect an important woofer with a light tweeter, the threshold at the frequency of the section is affected), which brings its own troubles enny.
Therefore, the sound of these acoustics is characterized by a special monolithicity and density.
Another obvious advantage of wide-armored systems is the careful selection of materials for the dynamic speaker system for maximum broadness, which allows them to be used in exotic and authentic designs. megaphone
(quarter-length pipe inlet) TQWP
allow the manufacture of large-sized enclosures to allow the bass to reach the maximum possible depth. Rozrakhunok horn and modeling of frequency response vibrate in cost-free program HornResp, which allows you to model the behavior of the frequency response of a horn design based on the Tilya-Resin parameters, using the horn chamber and the characteristics of the horn. This is in line with the theory about the horn of design of the Guchnomists, in order to achieve maximum depth in the lower register (at the sacrifice of a larger CCD) it is necessary to bend to
Taking into account that the labyrinth in the middle of the acoustics additionally played the role of partitions, the enclosures practically did not require vibrating clay.
Many great producers and ordinary distributors of horn speakers recommend using a small volume of sound-bearing chamber in the anterior chamber, especially for small-sized ones, which are located directly at the station of the anterior chamber behind the speaker. and without covering the mouth of the horn.
Therefore, I recommend that the sound specialist should avoid vikorism only in vinyakovyh drops, if the humps of the frequency response are too large or the humps are standing or the splashes of the frequency response of the speakers are difficult to correct with notch filters.
Fostex speakers have an even lighter sound that miraculously convey instrumental music and vocals.
The paper diffuser and horn design gives a neutral sound, with a slight splash in the upper middle and lower high-frequency register.
Therefore, it is necessary to preserve the output timbre of the speakers as closely as possible and create a slight dip in the upper midrange.
Since all types of feed-through capacitors have a unique timbre, it follows that when choosing the type of pass-through capacitor in the notch filter.
The following capacitors took part in the test:
-Metal paper MBGO: practically neutral timbre with slight presence in the lower mids and some high frequencies.
-Metal drums MBGCH, with an expanded upper range of high frequencies: Stronger sound with a muted midrange and vibrant high frequencies.
-Metal-plated capacitors MBM: increase the sound level due to the harmonics in the upper middle, promoting localization of sound images when a scene occurs in an audio composition.
- metal film K-73-17: neutral sounding, super-suppressed upper mids.
-metal-plivkov K-73-11: neutral sounding, suppression of the lower HF register.
The choice of vibrations on the metal-film K-73-11 is most consistent with the timbre of our speaker. Installation of wiring to the acoustic terminal should be carried out as symmetrically as possible in the center of the horn, attaching it to the wall and setting the maximum tension. The audition turned out to be true and in the first seconds it deprived many unforgettable enemies.
It was not possible to use a minimal test set of compositions to establish an assessment of the listening quality of the acoustics. However, it turned out to be incredibly important to listen to audio compositions of various genres that were collected and compiled.
Sered the finest viciousness You will now see greater directness, better processing and greater reliability of the lower register from all the different speaker designs. The most reliably and clearly presented instrumental audio compositions are classical, light rock, jazz. HarmanKardon PM 655 still copes with the tasks set, thanks to its highly sensitive speakers with lightweight speakers, they further reveal their potential in a tube-assisted speaker.
And of course, after numerous listening sessions, you will come to the conclusion that such low-frequency devices as a closed screen, a phase inverter and a quarter-wall pipe will be introduced through a clear program for the reliability of audio production. ій.
Therefore, since the design of rich speakers and subwoofer systems, if possible, I recommend using horn design.
I wish everyone good luck with your horn speaker design and possible repeat project!
System 5.0 for listening simultaneously with a subwoofer.
I would like to present to your respects the recently prepared system 5.0 based on the dynamics of the SRSR vibration system.
First of all, I want you to get acquainted with the history of the development of acoustic systems and recommendations for choosing the type of speakers.
It all started a long time ago with a simple speaker embedded in the case.
Calling this “device” a speakerphone, it is, before speech, and at the same time an obligatory attribute of any “armor”. The situation changed with the appearance of the first sound cards, which could provide 2-channel sound., which is often abused in films, especially on DVDs.
The central column transmits dialogues between people.
In addition, 5.1 acoustics can be equipped with DTS and Dolby Pro Logic decoders.
Thus, 5.1 systems are minimally necessary for a home theater.
Boroshna choose...
2.0 and 2.1.
Most home computers are not even capable of computer sound.
If you listen to recordings in mp3 format, and if you play, then you will be entirely satisfied with 2.0 or 2.1 acoustics. Moreover, if you want to achieve a clear sound, just buy a more expensive system. There is no sense in adding “stuck” acoustics, since it requires a rich-channel sound card.
And similar expenditures for listening to mp3 (a format that does not compromise the special brilliance of the sound) are considered irrational.
This has led to several developments, and the development of acoustic systems begins with the selection of the shape of the speaker system according to the parameters of a particular speaker. In addition, the dynamics of the SRSR vibration for their lightness and juiciness sounded with a low quality factor, through which it was impossible to listen to them in a “closed box” design - the unevenness of the frequency response is very important sounding For finishing: registration
Screenshot is open
You can sign up for the following options:
1) The presence of the rear wall in the acoustic system.
2) A substitute for the sound-absorbing material stretched over the entire surface, I experimentally select the type and material. 3) Vikoristan perforated rear wall, as for example here: However, the price for a “smooth frequency response” is a sharp decline far from the main resonance frequency in the low-frequency region.
via "acoustic"
short shimmer
front and rear parts of the diffuser dynamics. The way out of this situation is found in the replacement of another low-frequency speaker in the front and most distant speakers. This made it possible to reduce the lower cut-off frequency to 90Hz and improve the directness diagram of the acoustic system.
You can adjust the frequency response graphs - the top box is open, the bottom box is closed.
Selecting speakers for acoustic systems through the great variety of imported speakers, the availability of parts and
Chinese copies
buv zupineniy on the vicious virobnitstva of the SRSR.
It is highly prized among audiophiles, lovers of tube and vintage sound. You can look at the advantages:
affordable price;
ta 6" 5gdsh-4 for the central channel.
To update the correct sound picture in a 5.1 system, the power speakers must not only be placed exactly above the listener’s head, but also be directed strictly at the listener.
For this purpose, a vertical console (brackets) with vertical and horizontal covers is covered. However, there is a problem: the stink is attached to the back wall of the speaker, which we don’t have... Here the victim had to bring the new look of the top wall of the speaker, securing them with 2 bolts and a few upgraded brackets Coverage to the top of the acoustic system. to secure them in the middle.
Trying to find CNC machines and milling
in the citywas not successful, he had to mill the patterns by hand for help.However, after finishing work, unevenness and appearance of decorative molding were revealed. The dry grill grills not only did not give a nice new look, but also spoiled the new look of the grill sticks with the chipboard body.
For an objective assessment of the sound, the opinion of audio critics is necessary.A group of critics was suddenly created from relatives and friends.Most of it goes from just music to music. And only 2 people are musicians.