# Vacuum Cleaner Subwoofer (Subwoofer Com Aspirador De Po)

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## Introduction: Vacuum Cleaner Subwoofer (Subwoofer Com Aspirador De Po)

This was an old vacuum cleaner that I had here at home.I could not find the hose and original accessories and the machine was too noisy. It was sometimes used, replacing an air compressor in a drama where I had done the set design.
Was stopped since.
My goal was to turn it into a useful object again.

==

Este era um aspirador de pó antigo que eu tinha em casa. Não conseguia mais encontrar a mangueira e os acessórios originais e o motor era barulhento demais. Eu o usei algumas vezes, como substituto de um compressor de ar, para inflar um sofá, num espetáculo em que eu fui cenógrafo (Frio 36 e Meio).
Desde essa época ele esteve parado.
Meu objetivo era transformá-lo em algo útil de novo.

## Step 1: Noisy (Barulhento)

The vacuum seemed to be quite efficient in generating noise. That's what gave me the idea to mount a speaker in the engine block.

The first step was to disassemble the vacuum cleaner, to remove the engine.

==

O aspirador era bastante eficiente no quesito geração de ruído. Foi isso o que me deu a idéia de montar um alto-falante no bloco do motor.

O primeiro passo era desmontar o aspirador, para remover o motor.

## Step 2: Dismantle the Engine - Desmontando O Motor

Once you had removed the engine, now is time to dismantle it.

===
Uma vez que você retirou o motor, é hora de desmontá-lo.

## Step 3: Speaking - Falando

I picked this speaker and the capacitor from an old Microsystem. The capacitor is 220µF x 16V, in a speaker of 8Ω, give a Crossover frequency of 90.34Hz (Using the Calculator of web site: http://www.carstereo.com/help/Articles.cfm?id=1). The diameter of speaker is 12cm.

I studied a few ways to insert the speaker in the engine block because it would ensure me less work.

After some testing, I decided to remove the center of the block and put the speaker in this area.

The speaker was a bit loose and had to cut some of EVA rings to secure it better.
===
Eu arranjei este alto-falante e o capacitor, que vieram de um velho Microsystem. O capacitor é de 220µFx16V, num alto-falante de 8Ω, o que nos dá uma freqüência Crossover de 90,34Hz, segundo este site aqui: http://www.carstereo.com/help/Articles.cfm?id=1. O diâmetro do alto-falante é de 12cm.

Eu estudei algumas maneiras de colocar o alto-falante no bloco do motor, porque eu queria ter certeza de ter pouco trabalho para fazer isso.

Depois de alguns testes, eu decidi remover o centro do bloco para colocar o alto-falante nesse espaço.

O alto-falante ficou com alguma folga e eu cortei uns anéis de EVA, para sustentá-lo melhor.

## Step 4: Placing the Capacitor and the Wires - Colocando O Capacitor E Os Fios

I put the capacitor in the position of the motor brushes and passed the wires through the center, the position of the motor shaft and secured the support.

===
Coloquei o capacitor no lugar onde ficam as escovas do motor, e passei os fios pelo centro, na posição do eixo do motor. Depois prendi o suporte normalmente.

## Step 5: Remount the Engine - Remontando O Motor.

Then, I remount the engine and put it on the Vaccum Cleaner body again.
===
Então eu remontei o motor e o coloquei no corpo do Aspirador de novo.

## Step 6: Finished - Acabado

The vaccum cleaner is now noisy, but it is a good thing.

I still put some lighting in place of the button on/off. And some cleaning and polishing still needed.

The sound is strong! As usual...

Sorry for my bad english. I used google to translate the steps from portuguese.

Ps.: If you want to see other stuff that I`ve maded at my home, visit: http://obraprospero.blogspot.com (in portuguese only)
===
O aspirador de pó agora é barulhento, mas isso é legal!
Eu ainda vou colocar uma iluminação no lugar do botão Liga e Desliga. E também devo limpar e polir o bicho.
O som é bem intenso! Como sempre...

Ps.: Se você quiser dar uma conferida nas outras coisas que eu fiz na minha casa, visite http://obraprospero.blogspot.com

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## Questions

Enfia um tocador mp3 em algum lugar... pronto micro system

Cara! Aproveita esse motor aí prá fazer gerador.

Sérgio, o motor ficou sendo usado como esmeril por um bom tempo, mas terminei passando ele para frente.

Great idea! I am used to a wood box, so how will the sound be as the speaker is inserted in a thin metal box? Will the metal be set in motion and give som additional sound? Should there be a thin layer of some sort of dead material (like gypsum) between the speaker and the metal casing?
Is the vacuumcleaner a big enough box?

Welcome to the BIC (Bilingual Instructable Club), djairjr. I suggest you to edit your good instructables adding the portuguese version.

Done.

¡Grande, esa unión latinoamericana! Lástima que nuestra presidenta no le llega ni a los tobillos a Lula...

Si' Que lastima!

Ni a la Rousseff.

I love the concept. I also dig the bilingual text.

My guess is the speaker will sound better if you remove or bypass the capacitor. They are used on midranges and tweeters to block out frequencies that are too LOW for the driver to reproduce (a high pass filter).

What you want is a "choke", which looks like a big coil of wire, because it is. It acts as a low pass filter, blocking high frequencies, which will reduce IM distortion (essentially low frequencies chopping up higher frequencies).

Time was, one could go to RadioShack and pick up a choke, or a crossover, or even a replacement speaker. Alas, that is no longer the case.

Some surplus houses have crossovers and chokes, Or perhaps you could salvage one from junk a two-way or three-way speaker system.