Great article from the excellent A Strangely Isolated Place site:
Son of Science by Andrew Garton
Well it’s nearly 10 years old but better late than never!
A Catalogue of Woe – T.K. Bollinger and That Sinking Feeling
Been very much enjoying this gloomy Melbourne doom/blues/alterna outing from T.K. Bollinger and That Sinking Feeling – I ordered a prerelease copy via the bands Facebook page, and went for the deluxe version with the lovely hardback book.
Reminiscent of Nick Cave (without the deep register vocals) and Wreckery, the jagged, sparse instrumentation really hits the spot, with some genuinely catchy (albeit gloomy) songs that really stick in the brain like a gloomladen ear worm.
Great stuff.
web link: http://tkbollinger.com/product/catalogue-woe-album/
addition of wooden compression driver stands that hide the protection circuit.
With the woofer enclosures now looking pretty good it was time to tidy up how the compression driver is supported, and tidy away the LPAD and protection circuitry.
I got some small pine boxes of the right size (from ETSY seller HIPROGRESS. I stained this the same colour as the speaker boxes, and got some self adhesive 4.5mm neoprene sheet from Clark Rubber to act as vibration damping, and protect the finish. This acts as a nice firm bed for the compression driver.
some experimentations with ACD (ActiveCrossoverDesigner) & MiniDSP
Both before and after I went overseas I’ve been experimenting with the most excellent Active Crossover Designer spreadsheets by Charlie Laub, with a lot of input and information from the Stereo.net.Au forum users, especially henry218. It’s a lot of fun to upload some measurements and get some crossover configs and ideas from helpful people and find they work! Later I’ve gotten to grips myself with cutting and pasting miniDSP biquad settings. There is quite a bit of info posted in the relevant thread, but this remains a work in progress while I improve the measurements needed to get the best results.
Also I’m quite curious to see the improved ACD that Charli Laub has in development that will include heatmap graph capability for evaluating directivity.
Some finish added to the enclosures. OK but could be better.
It took me a while to get to adding some finish to the speakers, but I finally did using some “Cabots Satin Jarrah Water Based Stain and Varnish“.
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enclosures for the Lorantz woofers assembled and now making sound at last..
At long last the enclosures for the Lorantz 15″ woofers are (mostly) done:
Big thanks to Col for helping with the build – his expertise gleaned from the multitude of enclosures he has created was a big help in streamlining the assembly process.
bass reflex enclosures for the Lorantz woofers now underway
After a very long delay I’ve finally gotten around to working on better cabinets for the Lorantz woofers that will unleash their full potential. Having adequate enclosures so I could be lazy and use the speakers as is no doubt contributed to the delay, but also some non audio related stuff got in the way as well, as happens.
boards assembled to check but not glued yet
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low cost simple John Linsley Hood 1969 class A amp kit build
A simple build of one of the basic JLH 1969 Class A kits into a dumpster dived old amp chassis.
Used a 120W SMPS after reading in the DIYaudio forums lots of people getting positive results combining this older “classic” DIY design with modern quality switched mode power supplies.
I decided to build this to dabble further with Class A amplifiers after being quite impressed with a very well made DIY S.E.T. Class A valve amp I got to loan. One of the few gear changes my wife has made unsolicited positive comments about the sound.
TDA7297 15W chipamp
After reading the diyaudio forum thread I ordered some of these low cost units to play with. So far I have been pleasantly surprised how good it is, and how little electricity it uses.
The first unit I got (pre-assembled) I blew up trying to feed it 20VDC.. so lesson learnt, I ordered two more in kit form from the same ebay supplier.
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