DIY gives music lovers and audiophiles the ultimate power.  First of all, DIY speakers use the same parts, building materials (usually), and design techniques of HiFi speakers in the 4 and 5-figure range.  This means you can have that "rich" sound at a fraction of the retail cost.  Second, by learning the science behind the design of loudspeakers, a lot of the mysticism and mythology that plagues the audiophile world becomes dispelled, and you learn what is important--and what is irrelevant in exceptional sound reproduction.

Everything here is free. I am a lifelong speaker addict, and this is my contribution to the audio world.

DIY Speaker Designs

Bookshelf

 China Syndrome Silver Flute W14RC25-S + Vifa Logic AC25SG05  This is the "sister project" to the Orient Express.  They use the shielded version of the woofer, and should cost around $100-110 per pair.  They were meant to work as a Home Theater setup or bookshelf speakers.  They were voiced to sound best placed up near a wall. 

Matching China Syndrome Center Channel to complete the China Syndrome HT experience.

 Classix  Dayton DC160 + Vifa DX19  Strange driver combination makes for a good, strong overall speaker that I would put up against retail bookshelf offerings in the $500 range--not bad, considering they cost about $150 in parts

 

Orient Express  Silver Flute W14RC25 + Vifa Logic AC25SG05-4  Uses very nice-looking, decent-performing, low-cost drivers available at Madisound.  They manage a surprisingly full and pleasant sound in a relatively small package.  Since they come in at under $100 for the pair, the possibilities abound for things you could do with them!

 Overnight Sensations HiVi B4N + Dayton ND20FA-6  A simple, small speaker with surprisingly deep bass and a wide and deep soundstage.  Also a good bargain at around $85 a pair.   

 

Girl from Ipanema  Dayton RS150 + Seas 27 TBFC/G  Seems everyone's done a design using these drivers; here is my version.  This is a sealed design, but the midrange and treble is really quite excellent.  Would work great for a Home Theater, paired up with a sub handling the range up to 80 Hz.

Vaagens  Audax AP170G2 + Vifa D25ASG   I designed and built these for my father in law.  At moderate listening levels and above, these are some fun speakers for just putting on some tunes (dare I say "records"?) and kicking back, or putzing around the room.

Floorstanding

TRS-80  Dayton RS180S-8 + Vifa D25AG  In a situation similar to the Classix, what started out as a strange experiment in pairing two unlikely drivers ended up in an extremely enjoyable, inexpensive speaker.  At $220, it's the cheapest 2-way I know of that uses the RS180. 

 

Dipole / Open-Baffle

Aethers  Dayton SD215 + TB W5-704D + Seas 27TDFC  They have a massive soundstage, image very well, and have a very natural, "un-boxy" sound.  They won the Budget category at Iowa 2007 and InDIYana 2008.  Try it; you'll like it!

 

Sunflower  Dayton RS225 + Dayton RS125-4 + Vifa XT25  What started out as an "RS Version of the Aethers" is really quite a step up in terms of sound quality.  Can be built in a variety of cabinet designs and should come in around $450.


Extras

Other People's Projects - Here are a few writeups I did as I built some projects designed by some of the DIY masters out there.  I share them here because simply building a speaker is not necessarily an easy task.

Common Speaker Conversions - This is a simple excel calculator to perform a bunch of conversions I tended to need again and again while working on projects, but I got tired of using the calculator function on my phone.

I'll level with you - My audio manifesto.  This is what happens when a composer and musician also is a closet audiophile.  (Warning: contains unorthodox audio opinions)

Questions or comments? (DIY-related)