The most fun you can have in audio is DIYing your own speakers


You don't have to make the best speakers on earth, or most expensive, and you don't have to become an expert in the tech, but in all my years in audio, I have to say DIY is the most fun and educational. For me, speaker building was a lot more fun than electronics (amps, pre's etc.) 

Lots of great sources for complete kits as well as paper-only designs. Speaker building is also a great thing to do with your kids. I highly recommend it.

Best,


Erik
erik_squires
I don't think speaker makers are "profiteering." I think it's a very difficult business you have to love to be in. But I am comfortable saying that high end speakers have to sell for around 10x the driver costs to be worth making.

10:1 is the minimum I see for using top quality drivers from OEM makers. That is based on retail cost of drivers. My numbers hold up based on analysis I’ve done from a few brands that I know the drivers for. But let’s take this through how retail works instead.

The ratio can be MUCH higher when the drivers are made in house (Monitor, Focal), or the drivers are bought in bulk or speakers are sold direct.

There are a number of reasons. First of course is that if you buy retail you are at least 3-4 layers away from the driver manufacturer.

  1. Speaker maker
  2. Distributor
  3. Retail store owner
The retail markup is 40%. The speaker / electronics maker doesn’t sell speakers for the cost of manufacture, that’s a zero gain situation. They have to build crossovers, pay for those parts, have cabinets made, etc. All this adds up.

So, a $10k speaker pair in the store sold by the manufacturer for $6k. That is $3k/speaker. Figure they want to make 2:1, they must build for no more than$1,500 a pair. That includes cabinets, crossovers, assembly, testing, not to mention normal business overhead.

So, $750 to put a single speaker out the door. Assume 2/3rds of that is drivers, with the rest going to everything else discussed above. We are at $500/speaker in drivers, and there is not a lot of room for decent crossover parts.

This is why, for the same budget, a DIYer can assemble a speaker with much higher value parts than you can from the retail store. However, this is no guarantee at all that it will sound good. If you need validation from the retail marketplace that your speakers are high-end you’ll never get it.

That’s fine, I’m sitting here listening to $3k speakers I’ve not heard the better of in a very long time. :)

Best,

E
I should point out, I don’t wish to attack speaker manufacturers, at all. I just want to interest others in this hobby and help make audiophiles more informed consumers.

I have nothing against speaker makers making money by selling high quality products at fair prices, and 10x the driver cost is about that. 

Those big commercial markups also make it intriguing to modify off-the-shelf commercial speakers, particularly low- to mid-priced models where there is less concern about resale value. Such models are often well-designed, but built to cost with striking compromises in the quality of piece parts. Some projects can be done on a tabletop with basic tools and a little research.

I recently reworked a pair of two-way Jamo E800 bookshelf speakers that originally retailed for around $700 and retain negligible resale value. Solid birch-ply cabinets, good SEAS drivers, a well designed second-order crossover with decent inductors, but compromised by inferior generic electrolytic and poly capacitors, generic cast resistors, a passion-killer thermistor in series with the tweeter, el-cheapo thin copper wiring, tinned-zinc PCB traces, and junk binding posts. Replaced the caps with ClarityCap CMR and CSA wired point to point, replaced the resistors with Caddock MP930s, the wires with DIY heavy gauge silver, and the binding posts. All for about $150 plus six hours, producing a massive improvement in performance.

Then got to thinking about the instability of the molded plastic baskets and spiders on the 5 1/4" mid/woofer. Reinforced those with a thick layer of epoxy paste impregnated with brass dust. (+$30)

Now they are more Raidho than Jamo. Serious fun for short money.

Great work - rewarding - and better sound ! It's lot's of fun and satisfying to learn what you can do to improve a product.

David Pritchard
@dgarretson - Yeah, it is financially very difficult for most vendors to justify spending good money on crossover parts. 

One of the worst offenders is Focal, which only uses Solen's cheapest caps. So much better even with cheap Mundorf MKPs