Estimated reading time: 9 minute(s) And finally, hello! Today, as usual, we are finalizing the speaker system. Today it will be Eltax Hollywood acoustics.
I thought of starting to finalize the speaker system with explanations.
It’s worth a little understanding for those who don’t know what the concept of “two-way speaker system” means. What is hidden under such a concept as “two and a half stripes”. What is a “three-way system?” Are there acoustics with “three and a half bands”?
Examples of speaker systems for comparison
Basically, I have quite a few copies of columns for clarity. I will briefly try to talk about the differences and controversial concepts.
Elenberg SS 5062
Elenberg SS 5062
The first column is called Elenberg SS 5062. More precisely, that was the name before they were finalized. It has three speakers. Two MF / LF (mid-frequency / low-frequency), the third HF (high-frequency). But this is a “two-way” classic system, because the midrange/bass speakers play one band and they are absolutely the same. In theory, two mid/bass speakers play as one, the Crossover divides the sound into two bands.
Cortland 7000
Cortland 7000
Following the Elenberg is the Cortland 7000. It includes four speakers. These speakers play three bands. High-frequency, mid-frequency and two low-frequency speakers. Two LFs play one band. Experiments were carried out and an attempt was made to make “three and a half stripes” out of them. But since the woofers are the same, their resistance is also the same, but the resistance of the coils that cut off the frequencies is not exactly the same. They played inconsistently and it was decided to abandon this idea.
Cortland STH 5500
Cortland STH 5500
Next comes the Cortland STH 5500. Previously, a video was shot to improve this acoustics. Watch the first part here. From the factory, these speakers are “two and a half bands”, which are also reproduced by three speakers. In other words, one speaker plays high frequencies, one midrange/bass speaker, and one low frequency speaker plays pure lows. I would like to note that now they have become three-lane. They became a three-way system only so that they could play “correctly” with the Cortland 7000 speakers that are located at the front. Cortland STH 5500 are on the rear, rear and front center.
What changes occurred when the two-and-a-half system became a three-way system? First of all, the overall resistance of the column has changed. The nameplate says that these are “6 ohm” acoustics, but in fact, now it’s “10 ohm”.
What would you like to say about the speakers, in general?
How does a midrange speaker differ from a woofer? In appearance they are almost the same. Naturally, the diffuser material is different, but that’s not all. They have significantly different suspension rigidity. The softer the suspension, the lower the resonant frequency and, accordingly, the worse it plays midrange frequencies. Therefore, the subwoofer always has very soft speaker surrounds. Midrange speakers always have a hard suspension.
Eltax Hollywood
Eltax Hollywoodwood
The last specimen that will be discussed further is the Eltax from the Hollywood series. Today it will be finalized. This is a full-fledged “three-way” acoustics. It just has a huge tweeter. Two mid-range speakers. And on the side of the speaker there is another 8-inch speaker. It really has a very soft suspension. But if you think logically, then making a three-way speaker system out of such a shape is wrong!
A three-way system should look something like a Cortland STH 5500. All speakers should play forward. Here, it turns out that the woofer plays sideways. This performance is acceptable, but only if the speaker bandwidth is cut to stereo separation.” This is somewhere up to 300 hertz. But here it is unlikely that it is cut to 300 hertz.
Disassembling Eltax Hollywood acoustics
Right away, before starting disassembly, I’ll note that the sealing of the camera and 4-inch speakers is quite poor. This can be noticed by lightly tapping the cone of one midrange speaker. The other midrange speaker should oscillate slightly at this time. Air movement must be created inside the chamber. But it stands still, which means the air is escaping somewhere. We will definitely try to fix this.
A little about the large 8-inch speaker. Here the sealing is quite good, taking into account the fact that the bass reflex is currently locked into the table, or, in other words, the hole is plugged. We disassemble the speakers by unscrewing all the speakers from the housing.
Eltax Hollywood disassembly
There are quite a lot of self-tapping screws, so to make the work easier, you should use a screwdriver. Please note that the wires to the speakers are not soldered, but simple terminals are used, as when connecting speakers in a car.
The Eltax Hollywood acoustics have the most interesting part - the crossover. It should be there, and I wonder what it looks like. How it divides frequencies and what order the filters themselves are – let’s try to figure it out.
First order crossover, based on electrolytic capacitors. "Children's" filters! There is no other way to say it. The wire is thin enough for crossover coils, in my opinion, approximately 0.7mm. The first thought is “we need to make a two and a half lane crossover here”! What does it mean to make the low-frequency speaker cutoff at 200Hz. As it turned out, two 4-inch midrange speakers played from 0 to 3,500 Hertz.
After calculations, it turned out that the woofer plays up to 3000 Hertz! This is at first order crossover. In other words, it plays the whole – both low and mid frequency range! Midrange speakers play from 600 Hertz to 7000 Hertz. If he can play from 600 hertz, then he is probably not capable of playing up to 7000 hertz. The high-frequency spectrum from 7000 hertz should be played by a huge tweeter with a large magnet. Using some of the factory filters will not work. The technical characteristics of “standard” crossovers are such that there is no point in using parts from them. Let's try to correct the manufacturer's mistake.
Selling. Cortland STH-6000 speakers
The problems are as follows: 1 I can’t switch aspects of the image in any way, the picture on the TV is constantly elongated. I tried changing all the color system settings on the TV, same problem. In general, some functions that are indicated in the instructions simply do not work. Please help someone who solved these problems!
I could see it, and just in black and white. I can imagine how upset you are right now. I struggled with choosing a recreation center for two months and naturally turned my attention to Courtland. The acoustics are decent. I dug around on the Internet and somewhere on the forums I found a discussion of these recreation centers.
Unfortunately, I don’t remember where, but I got there through a regular search in Rambler. Try it, maybe you will find help there. Having read the reviews there, I decided to bypass this manufacturer. I purchased a Kenwood receiver and Audio Pro speakers. In terms of money, it's about the same level.
We begin the first stage of preparing the columns.
We will seal them inside with padding polyester, purchased in advance and cut to the size of the column. We use regular PVA glue, which is sold in any hardware store. The size of the glue package is individual for the size of the speakers. For one pair of speakers of this size, one small can may well be enough.
As usual, I fill my column with padding polyester, as I expected. Anyone who has never filled their speakers with padding polyester will have a question - “why is it needed in the speakers?”
Everyone can verify the usefulness of padding polyester with their own hands and check it with their own ears. Try sealing one of the speakers and leaving the other as is - without damping material. And shout something loud into the open hole from the speaker. First in one column, and then immediately in another. The difference will be audible – no matter what! And you won’t have to prove anything and the question won’t arise.
Expensive brands always add synthetic padding to their acoustics. That’s why the sound quality in their acoustics is expensive.
instructions for cortland STH-6000 circuit
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The second stage of acoustics preparation.
We will make sure that the speakers do not ring. In this acoustic system, it turned out that all the speakers, from small to large, were very loud. It's easy to check. We take the magnet and tap the speaker basket with a screwdriver. Sounds like a saucepan. This does not add richness and beauty to the sound produced by the speakers.
In expensive acoustics, the speaker baskets are always thick and aluminum. This is done just to prevent them from ringing. We will seal the baskets with vibroplast remaining after denoising the car.
Cortland sth-7000 manual
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How to open it with this program for further use. Answers: 1; Aspire one d Replies: 1 ; Voice Changer 8. Need to download Skype Voice Changer for free?
Third stage of improvement.
We can say that the most useless stage in refining an acoustic system is assembling the acoustic filter. So why is this the most useless activity in refining acoustics? Yes, because every second person says that this has absolutely nothing to do with sound quality. And for those who don’t think so, I recommend watching a video about assembling a crossover.
Link to video about crossover assembly
The assembly of the crossover is described there, and this one is assembled in exactly the same way. But the only difference is that empty tin coils for soldering served here as clips for the inductors. They are just perfect for this. Even with a core, it turns out that an iron pipe, half an inch, fits perfectly.
Floor-standing speakers Cortland STH-6000 + bookshelf
I would like to know how headphones B will sound. I don’t know which of these, maybe both means, but it helped. Minor circuit and design changes are possible in the substation, which are not reflected in the operational documentation and do not change the technical parameters of the substation. First of all, it is necessary to follow a diet consisting of foods rich in vitamins and microelements, mainly copper and zinc. Ostapur is effective in the fight against various ectoparasites, including Chilodonella, Costia and Trichodina, which parasitize the bodies of fish in fresh and saltwater reservoirs. If it’s healthy, you can use adrenaline or occlusal sharpness from the thing and apply it to the affected joint. The extract contains a large amount of vitamins. And the glue was found suitable for use in window production.
The fourth stage, the last one.
We solder the wires to the connection terminals and attach the assembled crossovers to them. And we begin, directly, assembling an acoustic system called Eltax Hollywood. We insert the wires into the desired chambers. We solder the wires to the corresponding speakers and fix these speakers, each in its place. Where the wires enter the high-frequency chamber, we seal it with a piece of plasticine.
Home theater CORTLAND STH-6000
You can download the instructions to your computer or view them online on the website for free or print them. If the instructions are not complete or you need additional information on this device, if you need additional files: drivers, additional user manuals, manufacturers often make several different technical help documents and manuals for each product, the latest firmware version, then you can ask the administrators or to all users of the site, everyone will try to quickly respond to your request and help as quickly as possible. Your device has the following characteristics: Main unit: single-unit system, Speaker set: 5. For many products, various additional files may be needed to work with CORTLAND STH cherry: drivers, patches, updates, installers, list of error codes, electronic circuit diagram or photo .
Summary
After finalization and assembly, of course, I listened to it. From experience I can say the following: Eltax from the Hollywood series is the worst acoustics I have ever come across!
First.
Initially, I didn’t like that the bass reflex in this acoustics was set to 100 hertz. It's something mumbling and screaming.
Second.
The midrange and bass speakers do not reach up to 3000 hertz at all, they scream loudly.
Third.
The only plus found is that the tweeter works well. It is not for nothing that it is the largest of the speakers. This means that the magnet on the speaker is large.
