JBL Ti Series Review: Chicago Tribune - April 12, 1985

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JBL VIRTUALLY REPLACES `L` SERIES WITH TITANIUM SPEAKERS
By Rich Warren
CHICAGO TRIBUNE

JBL sets sail with unsinkable titanium buoying the new Ti speaker series. JBL has released four new ''Ti'' loudspeakers that virtually replace its entire ''L'' series line. The woofers remain familiar, but the midrange, tweeters, crossover network, and even the finish of the enclosures are all new.

Perhaps, not too coincidentally, this product reorganization parallels a complete corporate reorganization that leaves JBL a quite different company from the speaker pioneer most people remember. The consumer division of the company, marketing these new speakers, is under totally new management.

The JBL 120Ti represents the middle of the new Ti line, and replaces the company`s most popular L112. The 120Ti is a three-way system, roughly the same volume (though slightly shallower) and weight as the L112, finished in real teak veneer rather than the traditional JBL walnut. The 120Ti may be classified as a large bookshelf speaker, but the 56-pound mass is best supported on floor stands. The 112 and 120 share the same $1,100 a pair suggested list price.

The titanium label for the new line comes from a new high-tech tweeter with a dome fabricated from titanium (of which Ti is the chemical symbol). The advantages of this light metal for tweeters are extreme stiffness accompanied by very low mass. The speaker should respond to the slightest musical nuance uniformly without flexing. While titanium is not a new element in the laboratory of speaker design, proper fabrication always proved elusive.

Now JBL has perfected a way to form a very thin layer of Ti without breakage. Close inspection of the speaker reveals an extensive ribbing pattern resembling a mystical religious symbol. This high-tech approach to tweeters results in high power handling capability, making it almost impossible to destroy the tweeter from too much clean power, yet at the same time using power very efficiently to produce ample volume without large amounts of power. The new midrange speaker represents JBL`s first foray into polypropylene. Now the company claims to have found a technique of doping the clear plastic material with additives that change the color to gray and provide more desirable acoustical properties, such as rigidity.

The crossover, or dividing network, as JBL calls it, separates the different frequencies of sound sending each to the appropriate driver. The new crossovers more precisely send the sound where it should go more efficiently, without unwanted side effects.

The 12 inch woofer of the 120Ti is a modestly improved version of its outstanding 128H woofer. It delivers substantial bass in the 120Ti`s size enclosure.

The 120Ti radically departs from traditional JBL sound. The midrange is somewhat withdrawn and muted, and voices tend to sound a bit distant, and at times even a bit hollow. The speakers reproduce a wide frequency range, but not an entirely even one. As mentioned, there`s plenty of bass, but some of it is boomy mid-bass and not deep natural bass. This effect may result from placement and room acoustics. Stereo imaging, the re-creation of ''natural vocal and instrumental placement and the illusion of depth,'' seems sorely lacking.
 
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More details on the TI series here -
https://www.gammaelectronics.xyz/audio_08-1985_jbl.html

-Anthony H. Cordesman - (Adapted from Audio magazine, Aug. 1985)


"JBL has four speakers in its new Ti series, ranging from a small, two-way speaker to large, four-way systems:

The "flagship" is the 250Ti, a floor-standing system which lists for $3,000 per pair. It is superbly styled, with an excellent wood finish and smooth lines that disguise its large size: It stands 52 inches high and weighs 150 pounds.
The 250Ti has the new titanium dome tweeter; a 5-inch, filled polypropylene, midrange cone driver (used in all but the smallest of the Ti series); an 8-inch, Aquaplas-laminate, lower midrange cone driver, and a 14-inch, Aquaplas laminate woofer.

The JBL 18Ti, a small monitor, uses the same titanium tweeter as the 250Ti but has only a single, 6 1/2-inch, filled polypropylene woofer/midrange driver.
It sells for $500 per pair; each speaker measures 15 x 9 x 8 inches and weighs about 17 pounds.

This brings me to the 120Ti, at $1,100 per pair, and the 240Ti, at $1,500 per pair. The strengths in the new JBL Ti series stand out far more clearly as you go up from the 18Ti to the other three speakers in the series.
If you can afford it, I'd strongly suggest you go for at least the 120Ti. (The 240Ti, while a natural step up from the 120Ti, is not as dramatic an improvement as the 120Ti is over the 18Ti, or the 250Ti over the others.) "
 
I am confused by the review above, as that is nowhere near my experience with the 120Ti. And I sold them, when they were new.

From his comments, it sounds like he had them crammed up next to a wall. Only way to make them sound "boomy" and "recessed midrange".

Get them 2 feet out from the wall, on some stands (about 12 to 15" tall or so), and they are super-clean. They very much sound a lot like their 4412 studio monitor stablemates- very neutral, very dynamic. Not a lot of low bass (but a B380 or any other good sub will fix that), but what they do have, is very controlled.

Regards,
Gordon.
 
Move to the 240Ti if you want more low bass.

True, but the 120Ti has a better blend between the woofer and midrange.

A bit of a trade off- and the impetus behind the 250Ti. The 8" midbass solves that problem...

Regards,
Gordon.
 
It is my opinion though, that Greg did a good job of shaping in that crossover to blend the two.

Comparing them to the 250Ti is almost unfair! I have to wonder if Greg had to do a lot of pushing to launch that design, no expense spared on those groundbreaking speakers.
 
View attachment 2309831
Or check the individual pages from the 1984 Catalog selection at the Lansing Heritage Site -
http://www.lansingheritage.org/html/jbl/specs/home-speakers/1984-ti.htm

View attachment 2307837

Confession - I had a pair of 240ti speakers last year, still have a pair of 18ti speakers in storage,
and spent quite some time enjoying a friend's 250ti speakers during speaker parties at his home.

Although the German edition, these are the two pages missing from the JBL Ti Series 1984 catalog on the Lansing Heritage site. Among other things, they include an 18Ti image and technical data.

Shade
18Ti.jpg
 
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