Correct "plywood boards",7 layers -4 mm thickness, curved on a matrix/ my work/
What it is about ?jororaitchev,
Chiming in with others - those curves are wicked - nice work!
What I meant was that the curved sides you made for your speakers look really good - excellent work!
Nitrocellulose Laquer sprayed or brushed on will give you a finish as nice as that as well. It may not be as durable as an automotive polyurethane clear coat but it is much easier to obtain a glass like polished finish. Once you feel you have enough coats polish it to the glass like finish with something like 3M polishing compound. I used a Nitro Laquer on my guitar and it looks every bit as good as those speakers.
A speaker may not need to be as durable as a quitar since you don't bounce around on stage with a speaker. The other nice thing about lacquer is that spot repairs are easy. Lacquer melts into itself. If a small nick occurs lacquer can be painted on with a brush and then buffed to a polished finish that will be homogenous with the lacquer around it.
A speaker may not need to be as durable as a quitar since you don't bounce around on stage with a speaker. The other nice thing about lacquer is that spot repairs are easy. Lacquer melts into itself. If a small nick occurs lacquer can be painted on with a brush and then buffed to a polished finish that will be homogenous with the lacquer around it.
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I am very sorry for the delay of the answer, I try to answer all the questions but I do not always succeed, sorry!
Joro
Why and how should a beautiful project be changed at the outset?
The problem is in the frequency of around 5000Hz; There is a peak ,which strongly influences the average frequencies.There are two ways to solve this problem:
- Adding one more MW,
-More complicated construction of the filter I don't know the exact name , maybe (reager).
This project may be look beautiful, but will be changed.
As I wrote at the beginning of my post, everything is done by me, I do not use ready filters / and I do not recommend it to anyone unless it is a ready-made kit with cabinets /.Will try to explain why this project is changed at the very beginning.
The problem is in the frequency of around 5000Hz; There is a peak ,which strongly influences the average frequencies.There are two ways to solve this problem:
- Adding one more MW,
-More complicated construction of the filter I don't know the exact name , maybe (reager).
This project may be look beautiful, but will be changed.
As I wrote at the beginning of my post, everything is done by me, I do not use ready filters / and I do not recommend it to anyone unless it is a ready-made kit with cabinets /.Will try to explain why this project is changed at the very beginning.
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The name of this construction from "B & W" is:
"Matrix Internal bracing-system for cabinet stability" ,
I will use my term- "Ventilation".
Accept this term as a metaphor of a vented inner structure of cabinet , / I will say in a different way /, has the task of preventing the column's own sound and participating in the design proces.
I'll have to disappoint you,there will be a change.
Joro
These speakers are made of a specific alloy and have their own characteristics.
What should I choose in this situation?
-1 option, add one more 18 FX001,
-2 option,remove one 26 FX001,
I chose a new progect with 4 identical speakers:1 х 26 FX001, 1х 22 FX001, 1х 18 FX001 , T 25 CF002
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I think this peak will cause me problems at mid range frequencies. At the Tweeter , everything is clear.
I can make a reflector filter frequency filterrefiner filter, but what happens to the natural sound?
However, we reach the point where we have to measure the internal volume of the column. I am registered in more than 35 "DIY" sites and when I am asking the question , how i was made it - whether I have the right answer?
From waste material I made this gadget ,that takes part in the measurements and when assembling the cabinet:
From waste material I made this gadget ,that takes part in the measurements and when assembling the cabinet:
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Continue:
I fill the cabinet with water to the red line / there ends the front panel with the speakers /.
I find the volume - 43l, I deduct the weight of the internal ribbed - massa 3.4kg.
And the net volume of the cabinet is 39. 6l. More than I need, I need about 35l.
I know the total volume, now everything is very simple there are several options for correction;
- purely mathematical / small planarity, simple algebra and axonometry /
- methodically- it can be done in several ways.
There is also a third option, but for it later.
I fill the cabinet with water to the red line / there ends the front panel with the speakers /.
I find the volume - 43l, I deduct the weight of the internal ribbed - massa 3.4kg.
And the net volume of the cabinet is 39. 6l. More than I need, I need about 35l.
I know the total volume, now everything is very simple there are several options for correction;
- purely mathematical / small planarity, simple algebra and axonometry /
- methodically- it can be done in several ways.
There is also a third option, but for it later.
Attachments
The problem is that my investor likes the vision of the column.The decrease in volume must occur inside the construction of the cabinet.This sends the project in a more initial phase,we have a new requirement for the project, second W18 EX001.
The old project stayed in the past ...
The old project stayed in the past ...
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