some experimentations with ACD (ActiveCrossoverDesigner) & MiniDSP

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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.

bass reflex enclosures for the Lorantz woofers now underway

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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

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A simple build of one of the basic JLH 1969 Class A kits into a dumpster dived old amp chassis.

JLH 1969 found object 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.

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BLACK MOY, Zoe Keating, Bersarin Quartett, The Children’s Encyclopædia

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A quite varied range here, ranging through techno, modern classical, electronic (IDM?) and guitar ambient noise:

BLACK MOY: Parameters – some more nice meat and potatoes minimal:

Bersarin Quartett : pleasant orchestral sounding IDM.. or IDM sounding Orchestral? not sure:
found via mention on SNA forums.

Zoe Keating: Into The Trees – Modern Classical..but has almost an electronic austere feel to it.

The Children’s Encyclopædia – The Strings That Make The Music : floaty ambient electric guitar stuff.