Planning my first non-trivial speaker build and would love any critique of my plan. Looking for a general all-arounder that lets me play with active xovers and a big multicell horn. I have lots of amps and different speakers but this would be my first foray into a more complex build. I have Klipsch Cornwall IVs as far as horn experience goes, other than that all of my systems have been full range or multiway standard drivers. So far my plan is:
Onken bass box
Thanks for any tips on matching or other things!
Onken bass box
- Great Plains Audio 416-8b (here)
- Cabinet based on plans from Joseph Crowe (here)
- Industrial/basic style finish with exposed stainless hardware in most places
- Dayton speaker binding posts (here) mounted on plates (here)
- Belden 9747 internal wiring, soldered with silver solder
- Great Plains Audio 288-8k (though it seems like they might have stopped making them?)
- 1505b wood horn from Marcus Klug (here)
- some sort of custom sled made from allthread
- 1000Hz done with active box, either my current Lyngdorf or a future Driverack or similar -- will experiment
- amps -- will experiment
- will not add at first, maybe in the future
Thanks for any tips on matching or other things!
Note that he is using a max-flat alignment as opposed to the historical/traditional Onken tuning.
Not really. Joseph doesn’t show his bracing so i can’t comment on that, this Monster miniOnken i did for the TAD 401 is complex.
Too much metal for my taste.
Really?
You are spending BIG bucks on the GPA, and quality plywood for 200 litres of properly braced Onken enclosure is going to be a pretty penny, but cheaping out on these?
I would suggest some ETI or WBT NextGen posts, and people may argue about suitable wire thickness but use something decent. I would use 1 or more pairs of this stuff: https://www.takefiveaudio.com/products/907-neotech-upocc-24-awg-teflon-insulation-cryo-treated/
Crossover? That high? A challenge for most 15”
dave
Yeah, original is 270 L/~8.58 ft^3 net. Re connectors, 'smart money' is equal length speaker wiring hard wired with proper cold weld connectors at the amp.
Indeed! Altec used 300, 500, 800 Hz/2nd for 15" woofers depending on the needs of the app with 1000-1200 Hz limited to duplex drivers.
Indeed! Altec used 300, 500, 800 Hz/2nd for 15" woofers depending on the needs of the app with 1000-1200 Hz limited to duplex drivers.
TAD TL-1601A or B ? 🙃
As for the OP, what is the reasoning for 24 and 22 AWG wiring for a bass driver?
That is what is used every day, for 1-4 watt loads at 24V traditionally.
Just adds resistive losses and heating of conductors.
Spend more on cross section, less on 'fancy marketing materials 🙂
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Oops, the 401 the compression driver?
1601A, the client is using them with Yuchi on the top. I’d use something like Alpair 10PeN in a midTL between the bass drivers. Or maybe a LeCleac’h horn.
Or fix an issue with an over damped amplifier? And i suggested you might use multiples.
dave
