[Vintage-Audio] Re Speaker Performance

Fri Aug 16 11:33:01 2002

Bob, 	

Mine are left to right, not vertical. I have never changed them, both cabinets
are set the same. I shall pull the fronts off, stand on a folding chair,
experiment with my trusty high tech adjustment tool and let you know which does
what.  	

Duane W8DBF	

----------
From: Bob <[email protected]>
To: [email protected]
Subject: Re: [Vintage-Audio] Re Speaker Performance
Date: Friday, August 16, 2002 11:15 AM

No, they are intended to be set for the room acoustics. The
upper one (toward the tweeter) is "brilliance" and the lower
one is "presence" whatever those mean. One seems to adjust
the highs and the other the upper mids. Mine are currently
set at about 9 o'clock each and it's still too "brilliant".

WBob

"Duane Fischer, W8DBF" wrote:
> 
> I looked and did find two screws, but they are above the mid range, the space
to
> the right is where the port is. The tweeter is just above this port. The angle
> of the screw slot is about 2:00 o'clock on both screws. A factory setting I
> pressume.
> 
> Thanks for calling this to my attention, as I never paid them any attention
> before. I had no reason to remove the front cover to see what was back there.
> 
> Duane
> 
> ----------
> From: Bob <[email protected]>
> To: [email protected]
> Subject: Re: [Vintage-Audio] Re Speaker Performance
> Date: Friday, August 16, 2002 1:50 AM
> 
> You got screws, they are on the front across from the
> midrange, but the 4320 which is the studio version had
> knobs.
> 
> "Duane Fischer, W8DBF" wrote:
> >
> > The Century L-100 do have any knobs, Bob. Yours are obvious the new/cheaper
> > model after the company was taken over by whomever took them over. The
> originals
> > sound much different.
> >
> > ----------
> > From: Bob <[email protected]>
> > To: [email protected]
> > Subject: Re: [Vintage-Audio] Re Speaker Performance
> > Date: Thursday, August 15, 2002 11:34 PM
> >
> > When I picked up my L-166s he had a mint pair of L-100s and
> > they had too many highs even with the both knobs turned
> > down. The 166s are better, with a dome tweeter but they
> > still have more highs than I like. I am slowly getting used
> > to them though...the bass is superb and I am losing all my
> > HF hearing anyway (-6 at 12KHz)
> >
> > WBob
> >
> > "Duane Fischer, W8DBF" wrote:
> > >
> > > The J.B. Lansing L-100 series ran for a number of years, Bob. Which
> > model/series
> > > are yours? Some have a letter at the end, such as "T" in 1987 etc. Now I
> have
> > to
> > > disagree with your analysis of the high frequency, with all due respect,
me
> > > thinks thee has tin ears!
> > >
> > > The L-200 were studio monitors. I though they only had the mid range and
the
> > > woofer?
> > >
> > > Get a copy of the Misty Moods "One Stormy Night" on vinyl or CD. Now there
> is
> > a
> > > nice test CD. When that steam locomotive slips and slides with metal
wheels
> > > spinning on those rain soaked tracks and the whistle splits the stormy
night
> > air
> > > with that whail that would wake the departed in the next country, only the
> > best
> > > speaker systems survive to be played again. The rest suffer from the split
> > > personality and cone rupture syndrome. When that train goes through the
> sound
> > > room it is enough to make you change your Fruit of The Looms. Dang! I love
> it!
> > >
> > > Duane W8DBF
> > >
> > > ----------
> > > From: Bob <[email protected]>
> > > To: [email protected]
> > > Subject: Re: [Vintage-Audio] Re Speaker Performance
> > > Date: Thursday, August 15, 2002 7:29 PM
> > >
> > > My experience shows that the JBL L-100 are tinny and have
> > > over done highs. I have L-166s which are better in that
> > > regard and the L-200s are even better. I too have my JBLs
> > > mounted at ceiling level and not pointed down but
> > > horizontal. The bass is great, and it still has more highs
> > > than I like but it is adjustable and I am still tweaking.
> > >
> > > My bass transient tester is Telarc Timewarp track 2 and my
> > > tester for really low stuff is Cosmic Hippo by Bela Fleck.
> > >
> > > WBob
> > >
> > > "Duane Fischer, W8DBF" wrote:
> > > >
> > > > Bob,
> > > >
> > > > Yea, ya got me. I did stretch things on my analogy with the Flea
breaking
> > wind
> > > > and the 757 taking off. My hearing is so accute that I hear things
sighted
> > > > compatriots simply ignore. Notice I said "ignore", and not "did not
hear".
> > The
> > > > idea that when a person loses one of their five basic senses, the others
> > > > compensate by becoming nearly 6 Million Dollar Man bionic, is false. The
> > > > differenece is, and it is an important one, is that I listen to all
sounds
> > > > because I am not distracted by visual input. The human being learns 92%
of
> > > what
> > > > he/she learns by visual input in one form or another. My biggest
> difficulty
> > is
> > > > in filtering out all of the sounds to focus on what I want, or need, to
> > hear.
> > > > The older I become, the more difficult this filtration process becomes.
My
> > > life
> > > > depends on my hearing, and the ability to hear essential sounds or
changes
> > in
> > > > the air pressure on the surface of the eardrums, daily. One
> > misinterpretation
> > > > can result in an injury or my becoming fertilizer.
> > > >
> > > > J.D. Sumner, for the record, is in the Ginnis book of World Records for
> > > hitting
> > > > a note of 32 Hz! He was the lowest bass singer in the world. For those
who
> > > care,
> > > > the song was on the album The Incomparable Stamps and is Blessed
> Assurance.
> > He
> > > > and his Stamps quartet, (southern gospel), backed up Elvis Presley the
> last
> > > > seven years the king of rock and roll was alive. Yes I knew J.D. Sumner,
> > have
> > > > his autograph and enjoyed him many times in person. He not only could
hit
> > > those
> > > > unbelievable notes, he could sing down there! Will never be another!
> > > >
> > > > My listening room has a 60% Cork cieling, with carpet and drapery to
> dampen
> > > > sound bounce. The J.B. Lansing Century L-100 are mounted at the cieling
> and
> > > > angled down to hit at ear level at the opposite end of the room while
> > sitting
> > > on
> > > > the couch with twin recliners built into it. The B&W are positioned
either
> > > side
> > > > of the master console and are floor mounted. They can be used as
monitors
> or
> > > > phased in with the J.B. Lansings. When phased, the entire wall lights up
> > with
> > > > sound. You have to hear it to even begin to comprehend what I am
speaking
> > of.
> > > > Writer though I am, words fail this!
> > > >
> > > > The proper room is just as important as the proper electronics for
> > listening.
> > > A
> > > > harsh room yields a harsh sound. Remember those high school assemblies
in
> > the
> > > > gymnasium with that echo off the brick walls? Then think about the
outside
> > > > amphitheaters with such perfect acoustics as to not require a microphone
> and
> > > > public address system for a person standing in the middle to be heard by
> > > > everyone seated there.
> > > >
> > > > My eleven year old grandson was listening to what I had on the stereo
and
> > told
> > > > me to use those speakers up by the cieling as they sounded way better
than
> > > those
> > > > on the floor. What can I say? Even an eleven year old picked the J.B.
> > Lansing
> > > > Century L-100 over the B&W 630's.
> > > >
> > > > Duane W8DBF
> > > >
> > > >
> > > >
> > > > ----------
> > > > From: Robert  J.  McKee <[email protected]>
> > > > To: [email protected]
> > > > Subject: Re: [Vintage-Audio] Re Speaker Performance
> > > > Date: Thursday, August 15, 2002 5:49 PM
> > > >
> > > > ----- Original Message -----
> > > > From: Duane Fischer, W8DBF <[email protected]>
> > > >
> > > > > Please do not misunderstand where i am coming from. I have
> > > > > dealt with audio for over forty years. I am also totally
> > > > blind, now.
> > > > > I know good sound when I hear it. I can hear a Flea fart at
> > > > five
> > > > > hundred yards while a 757 is taking off!
> > > > >
> > > > <snip>
> > > > Duane is stretching things just a bit here to make a point,
> > > > and I
> > > > believe it has to do with detail... where a truly outstanding
> > > > system
> > > > shines.  That 757 taking off should not distort the flea fart
> > > > and this
> > > > is very important in good sound reproduction.  The term Hi Fi
> > > > has
> > > > no meaning whatsoever any longer.  Altec tried years ago to
> > > > get
> > > > away from it by using the term Playback.  And that term bombed
> > > > also with the "professional" association.  Because
> > > > "professional"
> > > > really meant reliable and had little to do with accuracy of
> > > > reproduction.
> > > >
> > > > Duane also made a point in an earlier posting which hit home
> > > > with
> > > > me.  I designed and built a home in the early nineties with
> > > > music in
> > > > mind.  The music room is also the listening room with floor
> > > > dimension
> > > > of 16' x 30' with clerestory design... the ceiling sloping
> > > > from almost
> > > > 19' to 10'.  It does wonderful things for my stereo system.
> > > > For the
> > > > very first time I was not overdriving a room.  For the very
> > > > first time
> > > > I felt solid organ pedal tone power.  I had heard loud before,
> > > > but now
> > > > power (and there IS a difference).
> > > >
> > > > The size of my woofer in my two-way system is 10".  Anything
> > > > larger presents problems with being s l o w to the point of
> > > > distraction
> > > > from music.  There may be some large drivers out there with
> > > > the
> > > > necessary combination of small voice coil diameter with
> > > > micro-gap
> > > > and small magnet which would be quick and accurate, but none
> > > > have come my way.
> > > >
> > > > Always happy to stir the pot a moment or two.
> > > > Bob McKee
> > > >
> > > > _______________________________________________
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