[Vintage-Audio] Re Speaker Performance
Bob
[email protected]
Fri Aug 16 12:13:00 2002
You must have the cabinets "on their sides" The controls
should be along the long dimension and I picture the
speakers sitting on the floor (I know you have them in the
air) so up and down is measured in that plain. The L-100D
has the controls in the same place. I am looking at a
picture at:
http://www.audioheritage.org/html/profiles/bl/l100.htm
WBob
"Duane Fischer, W8DBF" wrote:
>
> 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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> > > > > List Administrator: Duane Fischer, W8DBF
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> > > > ** For Assistance: [email protected] **
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> > > > ** For Assistance: [email protected] **
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> > > ** For Assistance: [email protected] **
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> ** For Assistance: [email protected] **
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> ** For Assistance: [email protected] **