Fullrangedriver Forum

here's another comparison using 3 fullrange cabinets http://www.youtube.com/watch?v=mHB8MMLhCI0

other than a less than one second view of a K8 I didn't know was there, that montage track lines up pretty well to each speaker picture - but agree at around 1:35 seconds per speaker its probably too long to remember - I just go back and forth on YouTube's bar to listen and its all in "thirds" chunk-wise. 

Its kinda tedious to move the speakers and work with Zoom H2 - especially if a lot of small clips are involved - H2 is a really good recorder overall.  I'll try to make some new comparisons with just one short subject (also there's the possibility of editing what I already have then linking the wavs for new track)  I trimmed tracks considered unsweetened from a "pro" test CD to form the 1:35 test track.   Mic and speaker under test positions were kept fixed.  Gain to amp from PC kept fixed.   My volume control (Promitheus) has switched positions.     I think this type of comparison although very limited is better than verbal descriptions  :^)

Last edited by karlsonkab (2010-04-12 21:35:51)

good catch - no compensation between the speakers  - although 1772's reference efficiency calculates lower, there's probably not much difference.   It would be useful to measure each as direct radiator and see.

I'm not sure of the steps on this Promitheus volume control.   After the fact, Audacity can examine for a passage how much headroom is available - subjectively each speaker may play strong in different parts of the spectrum.  Today I listened and recorded two cabinets playing one song.   Although the Nirvana Super10/bass reflex sounded louder on the first 30 seconds of flute and drums, the Karlsonette (K12) showed 2.8dB more peak output "somewhere" when I checked how far each track could be amplified til "0dB".    Super10 is very hot on the top and on-axis and I had the 70 liter reflex tilted back to aim the high frequency lobe upwards.   It would take a while to examine each 30 second clip to see & hear where differences lay.   (I suspect Super10 could sound pretty good in a small Karlson-coupler) - fwiw, K12/1772 sounds better on vocals than my Super10 (no compensation network) in reflex when either are near a corner and against one of my Klipschorns.   (I like the little Karlson's sound including "bass" better than my Klipschorns)

Last edited by karlsonkab (2010-04-15 00:47:10)

here's a little article suggesting the best compromise may be to measure each speaker with RTA and set levels so the curves overlap as much as possible in the midrange  - it also cites Villchur's live vs recorded demos:
http://www.audioxpress.com/reviews/medi … ler110.pdf

cute system - his camera must take spl better than mine

http://www.youtube.com/watch?v=C_oXBfsrlFQ