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In Reply to: RE: Dabbling with Bose 901 Series 2 posted by BigguyinATL on February 18, 2015 at 14:42:25
Yep! That solo guitar is twenty feet across. :)
Follow Ups:
I've got them (front drivers) about 6 feet apart (I almost said "tweeters") and slightly toed in the mono center is about 4 feet wide! With my MMG's pushed out now to almost 9 feet between tweeters (tweeters in) the mono center is only 2 ft or so... Amazing difference. I can't wait to DSP this weekend on the 901's and see if I can "Dial them in"
"The hardest thing of all is to find a black cat in a dark room, especially if there is no cat" - Confucius
I own a pair of 901 series IV and apart from a few cones coming un-glued after 30 years they work well with Live Concert DVD's.
“The bitterness of poor quality remains long after the sweetness of low price is forgotten”
...the mono center is about 4 feet wide
What exactly is the criteria for determining "mono center width"?
When you play a mono band limited pink noise signal - how wide does my brain think the imaginary center source is.
FYI - I've dinked around with the positioning of the 901's and with the faces parallel to the rear wall about 2-3 feet away the center image has shrunk to an acceptable size. The high frequency level has suffered a bit for that move - since the listening position is now 30 degrees off axis.
"The hardest thing of all is to find a black cat in a dark room, especially if there is no cat" - Confucius
Well to me a speaker that has produced the narrowest image - width and height would be the most resolving. For me, stereo is too confusing - so dependent on source material. Sure - I have a test tone that moves from left to right based on a pan - and another signal that moves the phase of one channel relative to the other. One of these days I'm going to make a good M-S recoding of a single loudspeaker in an anechoic environment and create a series of image placement positions based on level and phase.
I always start in mono when evaluating loudspeakers. Or other devices. In fact I'll listen to just one loudspeaker playing music way before I switch to mono through stereo - I get a far better idea of the way the timber is carried through and how directive the loudspeaker is.
Good thing I have a good relationship with a couple of my retailers near me. I even get to do real ($$$) work for them now and then.
Happy listening....
FYI teaching Seminars in MLPS this spring. I think I'd enjoy getting together.
"The hardest thing of all is to find a black cat in a dark room, especially if there is no cat" - Confucius
I've always approached it from the opposite end. How realistic is the stereo image?
The high frequency level has suffered a bit for that move
Which was poor to begin with using midrange drivers!
Well, have fun with your experiments.
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