Yeah I was going to make a snarky necro comment. 🙂Rip van Onken awakens after 20 years?
Given the Sigma 103 variant is looooooooong OOP, not sure why this ancient thread needed to be bumped. The FE103En (now "NV") is a nice enough driver, but may only appeal to Fostex fanboi's.
jeff
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Same here until he mentioned the BR with no details. Me too and same as the 360, though only more exaggerated 'colorful' mid-bass was a big turnoff compared to my various 'razor sharp'/'heart attack fast' MLTLs.The only Petite Onken I knew of from la Maison de l'Audiphile was the 12" version that used an Altec 414 as the woofer. I heard it, but don't particularly remember it.
Then there was the Mini-Oken which used a 10" Focal woofer and not a horn loaded high frequency section. The mini was nice I had planned to build one, but every time I heard the 360 liter Onken with the 15" Altec, I got distracted.
Dave, Planet 10 makes very small Oken style that use fullrange Fostex drivers. Also very nice sounding.
if I understood him correctly, the Focal was his 'Onken' which he gave up on after experimenting with blocking/damping its super long vents left him with just a BR.
Yes, Onken as it should be IMNSHO, somewhat aperiodic, i.e. a truly 'critically' damped alignment.
A more recent FE103∑ thread suggests it is a midTweeter and not capable of making bass, best used as midTweeter.
dave
dave
I agree - even suited for mid-bass application - realized in a vented box, but so called "Boom"-box alignment with enhancement of the frequency area around the tuning frequency (90-130 Hz) and with high pass beforehand for attenuation and linearisation this frequency area.A more recent FE103∑ thread suggests it is a midTweeter and not capable of making bass, best used as midTweeter.
dave
Perfect suited as high efficiency satellite speaker, e. g. PC speaker.
If you do not already have FE103∑, bith Fostex FF85wk, and Alpair 5.2/3 will outperform it overall for this application.PC speaker
dave