I just noticed something strange, the speakers are not in the center on these? they appear to be off to one side? I wonder why?
I just noticed something strange, the speakers are not in the center on these? they appear to be off to one side? I wonder why?
I meant to ask if this was the case Vs a skewed view from a too close-up shot since this is another design tweak that historically has only been known by pros and advanced DIYers and even then is often ignored to keep the baffle symmetrical for marketing and/or cosmetic reasons.
Anyway, the offset is to average out the eigenmodes (standing waves) that occur between the driver and any hard enough parallel surface beginning at a half WL of the distance. Inside, the insulation will damp its higher modes and if the cab's not too wide, all of them if a dense enough insulation is used, but the front of the cab is a different matter altogether since the only way to damp them would be to mount the damping pads on the sides and extended forward enough to damp all of its eigenmodes BW. This is the reason behind a foam surround on a horn's mouth, felt pads or foam rings around tweeters, etc., but become unacceptably large/ugly for the lower frequencies if not a separate free standing cylindrical or similar absorber placed near it on each side that some folks market.
Due to the way we perceive sound, our brain will sum/average out a multiplicity of peaks, nulls, so offsetting the driver is one of the technically elegant acoustical solutions to an acoustical problem. Another is the shape of the cab with contour shaping of the mouth, i.e. tractrix, Le Cleac'h, Geddes, et al being the horn analogue.
GM
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
Your pretty smart there GM. ; ) Thanks again. :2thumbsup:
All I know is I can't wait till Tuesday!!! I'm hoping my Marantz will make them more awesome sounding than they already are!!!!
GM - How much of an offset is necessary to achieve what you are describing? In say, either a MLTL or 620 cabinet application?
Are you replacing the Optimus? Nice! Which Marantz are you getting on Tuesday?Originally Posted by cradeldorf
Its a perfect condition 2216 but not a 2216B and after finding the loose wire on the crossover inside of the speaker with the 604E in it let me just tell you.....the Marantz is Sawheet!!!!!!!!!
absolutely awesome sounding. I'm very happy. all is well I just need an FM antenna and I'm all set. :2thumbsup:
Cool! Welcome to the world of great audio.
Congrats--now you're cookin'!
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