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JBL-200

216.163.67.131

Posted on April 17, 2000 at 15:59:30
In the early 70's, I had an acquaintence that owned a pair of JBL-200s (if my memory serves). It was a two way -- 15" woofer and horn, slanted front. What I most clearly recall was that a 30 wpc Sansui receiver drove those speakers to an astonishingly loud volume without distortion or break-up. We only did this one time, when his girlfriend was away for the afternoon. It was intense -- the experience really left an impression -- not so much of pure quality, but of an ability to effortlessly play rock 'n roll with the impact of a live club gig without noticable break-up or distortion.

Is this considered a good loudspeaker? Is there any finesse, or is it just a brute? To my ear, it sounded nothing like the JBL-100 (which was very popular, but not a particularly good loudspeaker). But I can't really say it sounded quite like anything I had heard or have since heard, except pro gear.

What might a SE 2a3 amp sound like on a JBL-200?

Is this model available on the used market? Has it been gobbled up by Asian markets? Pricing?

What say you?

WTS


 

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Re: JBL-200, posted on April 17, 2000 at 17:29:40
MTL


 
The JBL L-200 is the consumer model of the pro JBL 4320(search for it on www.jblpro.com under vinage products).The L-200 has the LE-15A 15" bass and LE-85 compression driver with a conical horn-slanted lens
combination.It was later replaced by the L-300(4333)which is essentially the same with an added 077 supertweeter.I believe the sensitivity is around 95-96 dB so SE 2a3 might be pushing it a little but 300b or higher power SET will do very fine indeed.The dynamics is astonishing and there is very little distortion.Guitars .sax and piano sound like the real thing.For strings you need to modify it somewhat to get the best of the strings(use a wood horn and mess aroung with the XO).You are right about having a live band in your room!!

 

JBL-200, that reminds me....., posted on April 17, 2000 at 17:49:05
Walter


 
my first encounter with Dusty's Look of Love via this speaker, very seductive vocal and good bass. I am still not sure about the track is overrated or not, but to get the best from this track, it has to be SET and sometime like old JBL.

 

Re: JBL-200, posted on April 17, 2000 at 17:58:16
WTS---Superb speaker using drivers of outstanding quality. Make your own, all the stuff comes up on Ebay. LE-15A or LE15B woofer, 2420 or LE-85 compression driver (pro and consumer names for the same driver). 2391 horn-lens, 800 cycle crossover, don't know model number. I have cabinet and vent volumes around somwehere.

 

Re: JBL-200, posted on April 17, 2000 at 22:02:08
Dave VH


 
I once hat a pair of custom 176 cu.ft. speakers with an LE15A, a 175 midrange horn and the 075 "bullet" tweeter from Honkers Sound Company in Berkeley, California. They had incredible acoustic power - a 70's rocker's dream. The dynamics were asome when driven by my 45wpc McIntosh 1900 receiver. Unfortunately, the midrange was very "honky" and I had to move a couple of times, so I sold them.

It would have been interesting to play with the midrange to see if the honkiness could have been reduced.

I wish I still had them.

Dave van Harn

 

Re: JBL-200, posted on April 18, 2000 at 00:00:54
Paul Joppa


 
This was the original JBL studio monitor, with the HL-91 horn/lens. It was crossed over at 500Hz for home use, 800Hz in the monitors (probably for increased power handlng), and 1200Hz when used with the 130A high-efficiency woofer. Eventually they went to a slightly longer horn with the same 4" diameter mouth and slant-plate lens for the 800Hz crossover.

The LE-15 is not especially efficient, around 93dB I think - but very linear in it's range, and capable of very good bass. I'm using some 2220's for bass (the direct descendant I think of the 130A) with big 2441's driving the short version of the same horn/lens. At around 101dB/w/m it's about as efficient as a direct radiator can get, but there's not really any bass below 60Hz. I'll hook up some 8" subs for my 15" mids, someday... :^)

 

Re: JBL-200, posted on April 18, 2000 at 05:21:20
Sammy


 
I am also have JBL Jubal (L65) which have 12 inch Low Frequency
Driver, 5 inch Midrange Transducer and Ultra High Frequency Horn 3.125x0.725 inch. Their specification on Sensitivity are indicated seperately for each drivers as follows:
Low Frequuency 40 dbSPL(1)*
Midrange 46 db SPL(2)*
Ultra High Frequency 56 db SPL(3)*
(1)* "Since the major portion of the energy reproduce by the low frequency loudspeaker lies below 800Hz, this specification has been developed using a test signal swept from 100 to 500 Hz, rather than the 1-kHz sine wave test signal on which the conventihonal EIA Sensitivity rating is based."
(2)* "Average sensitivity from 1 to 3 kHz, within 1 dB, measured at 30 feet(9.1m) with a 1-Milliwatt input."
(3)* "Average sensitivity above 7 kHz within 1 dB, measured at 30 feet(9.1m) with 1-milliwat input."

The above mentiones specifications are from the Manual of this speaker. Can anyones please tell me what is equivalent to the today specification sensitivity 94,95 dB? I have many times posted this questions in many forums but no clear answer on this one.
Sammy

 

Re: JBL-200, posted on April 18, 2000 at 05:56:30
Sammy


 
Sorry I have to add the JBL Jubal(L65) specification that mentioned in the maual ( that I have not put in my last message)
System Sensitivity : 1 Watt input produces 76 dB
Sound Pressure Level at a distance of 15 '

Now I have every thing about sensitiviy of this speaker, can anyone give me advice on today specification on dB/W/m.?

Sammy

 

Thank You, Gentlemen (NT), posted on April 18, 2000 at 09:30:32
NT

 

Re: JBL-200, posted on April 18, 2000 at 21:11:58
Paul Joppa


 
Speakers are usually treated as point sources for these purposes. Anechoic radiation power falls with the square of the distance ("inverse square law"). So 76dB/w/15ft is corrected to 1m by 20 log (15 ft/1m) or 13.2dB. Total 89.2dB/w/m.

 

Re: JBL-200, posted on April 19, 2000 at 19:31:25
sammy


 
Thank you ...Paul
Sammy

 

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