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How to Build Custom Speakers

Step 2Speaker Theory

Speaker Theory
I built my first set of speakers as a high school student over 10 years ago. I've been making them for friends, clients, and now for Instructables as a prize for our Art of Sound Contest ever since. Over the years I've generated a few simple theories about speaker building that I think are relevant.

Yes, they do sound better, and no you don't have to be an audiophile to hear the difference
  • Sound quality has been steadily declining as heavily compressed digital audio, iPod docks, and bottom dollar stereos have proliferated around the world over the last 10-15 years. Listening to music on a great set of speakers is the single biggest change you can make to your stereo to get better sound quality. If you want to blow $200 a foot on oxygen free speaker wire made from precious metals, great, go for it, just make sure you've already invested a lot of time and energy in making the best possible speakers your finances and skill level allow.

Spend more money then you thought you were going to
  • If you're about to build your own custom speakers, you'll likely be spending at least 40 hours on the project if you've got experience with woodworking, electronics, finishing techniques, or have built your own speakers before, and even longer if it's your first pair. Depending on how you value your time, you'll have thousands of dollars of free labor (your own) invested in the speakers. If you happen to find yourself deciding between a $5 paper cone, no name woofer, and a $25 poly cone made by some brand name, please, get the more expensive one. Like tools, speaker components are an investment that you'll have for the rest of the your life, so reach a little and get the best stuff for your project that you can afford.

Start with a kit
  • Get started by ordering a kit from a supplier. It takes a significant amount of knowledge and work to design your own crossovers and calculate your own box dimensions. It's much easier to tackle your first speaker project by standing on the shoulders of experienced audio engineers. So, get a kit from one of the retailers listed in the next step and get started on your project today.
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9 comments
Jun 2, 2009. 6:00 PMshaneomacmcgee says:
wats up with the golden rectangle spiral...? just filler or does it serve a purpose?
Jun 3, 2009. 2:06 AMayhan13 says:
the golden ratio, persect beauties? well its this thing where every part i the ratio of the bigger one. search up golden ratio
Mar 3, 2011. 1:27 AMfbigun says:
slm ayhan isminden anlad1p1ma göre türksün:)
ad1m fatih istanbulda oturuyorum benim ingilizcem pek iyi deil o yüzden sana ingilizce yazam1yorum :(
acaba senin bu kabin yap1m1 hakk1nda bilgin var m1. bende kendime özel bir kabin tasarlamak istiyorum.ama bu i_i profesyonelce yapmak istiyorum bana yard1mc1 olabilirmsin ?
ilgine _imdiden te_ekkür ederim
Jun 3, 2009. 1:21 PMshaneomacmcgee says:
i undesrtand the golden ratio, i'm just curious why it's here...?
Feb 16, 2012. 12:28 PMFrozenIce says:
same here... maybe were expected to apply it..
Oct 27, 2011. 8:14 AMjerel2u says:
IIRC this shape is used as an ideal towards which the enclosure is supposed to be designed. It's been about 30 years since I thought about any of this, but there are a variety of types of speaker enclosures. For example, the famous Klipsch Horn speakers use a folded-horn enclosure, and I'm sure its design is related to this "golden ratio".
Jun 5, 2009. 4:20 PMshaneomacmcgee says:
ah alright, thanks man
Apr 7, 2011. 5:21 AMhjaswal says:
wats up. can u help me for making speakers.
Jun 15, 2010. 9:41 PMzinnatty says:
what's the name of that spiral?
Jun 16, 2010. 10:11 PMColdFish says:
That would be a logarithmic spiral.
Jun 16, 2010. 11:25 PMzinnatty says:
mmm I remember is fibo-something, dunno.
Jun 17, 2010. 8:11 AMjaredn79 says:
Fibonacci Number / Sequence; but your probably more referring to the "Golden Spiral" that follows the fibonacci sequence.

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