JBL 4344 JBL 4344 650,000yen(one set) Description Developing-as succeeding machine of 4343B which obtained reliance as reference machine of studio speaker system. 2421B and the tweeter to which the 38cm aperture 2235H which raised input characteristics-proof, the 25cm aperture 2122H of the cone paper adoption which made the mid Woofer reduce breaking up distortion, and a driver have improved the high region property to the Woofer have adopted 2405. Rating of a mode Scheme 4 ways, 4 loudspeaker bass-reflex scheme, and a bookshelf type Unit For low-pass: 2235H For inside low-pass: 2122H For mid-high ranges: Horn type (2421B+2308) For high regions: Horn type (2405) Play frequency band 35Hz-20kHz±3dB Cross over frequency 320Hz, 1.3kHz, 10kHz Directivity 60 degrees x 30 degrees (16kHz) Impedance 8ohms Output sound pressure level 93dB/W/m Allowable input 120W (At the time of a network ) Enclosure dimension 156L (Woofer), 14L (mid Woofer) Dimensions Width 635x height 1051x depth of 435mm Weight 104kg PR.
L3 & R8 3.5 mH (1.0 ohm DCR) & 6.2 ohm L6 & R13 1.0 mH (0.4 ohm DCR) & 7.5 ohm These traps function exactly the same way as they did in the legacy L110, L212 and various other JBL loudspeaker systems. Back then the inductors were nice little cubes with the 7.5 ohm DCR built right in. Below is how L3 & R8 affect the 2122H and 2123H in the ubiquitous 0.5 cubic foot subenclosure JBL has used in the 43xx Series monitors.Hi 4313B, Great! Thank you very much. Where did you got those informations from? Best regards from France.
Download lagu dragonforce through the fire and flames stafaband. Comparison of 2405 voltage drives in various JBL Studio Monitors: The 0.16 mH tapped autotransformer used in the 4344/4345 and 4355 is the same core with three taps. In the 4344/4345 the taps are wired so that there is an 8 dB drop. In the 4355 the taps are wired to that there is an 4 dB drop. One example unit: Primary tap 0.158 mH Secondary tap can be either 0.026 mH ( - 8 dB ) or 0.067 mH ( - 4 dB ) depending on wiring. The actual matrix worked out by David Smith is shown below. In any case, Greg no longer uses them and prefers non-inductive fix resistor solutions as per the 4344 Mk II.
Absolutely fantastic! Never seen such a perfect work.
And thank you for the documentation because I am beginning to follow the same lane. For the time I collect spare parts. I came to, precisely, this model 4345 because I had, long years ago, a new pair of 3 ways 432x with LE15A, 375 and 077 or their professionnal equivalent I don't remember. I found that 4345 were better because of the fourth way in the medium. But I neglected to upgrade my JBL for WAF reasons.
I search for the exact design of the cabinet. Could you tell me where to find it?
Description When it was found that musicians, engineers and other discriminating professionals in increasing numbers were purchasing the JBL studio monitor for home use, JBL introduced the L100 - acoustically identical to the studio monitor, yet offering provocative styling appropriate to the home environment. Truncated pyramids of the Quadrex 2 grille dramatize unique lineage and advanced engineering of the L100. New methods of sculpting semi-rigid foam material gave JBL the freedom to explore texture, color and shape. This reticulated (open-pore) foam - substantially the same material used for quality microphone windscreens - has been proven to transmit sound as well as even the most acoustically transparent grille cloths.
The grille frame and loudspeaker system enclosure are finished in hand rubbed oiled walnut on all four sides and can be placed horizontally or vertically.
JBL L-112 pair: Note the left and right speaker The JBL L112 Century II Speaker JBL Has a record of making very good speakers and the JBL L112 is no different. Where the JBL L-100 might still have had some weak spots, the L112 is frequently claimed to be one of JBL´s best 12' 3-way speakers. The price for a pair was around $1100 in 1981. JBL L112 Review JBL´s L-100 did not only sell more units than any other speaker at the time, but it remained a fairly popular and respected speaker until today. However, the model did not fully convince with its performance and later models were improved repeatedly.
The JBL L112 has shaken off the L-100´s weaknesses. Both speakers do share the same series specification (L-series), but their components are completely different, from the crossovers to the individual speakers, not much is similar. The L112 uses the 128H woofer with a far higher power handling than the L100. The 128H found usage in the companies home and professional speakers. The L112´s tweeter is another superior piece of equipment.
The L100's have the LE20 tweeter, a fairly moderate tweeter, which has not been too convincing in the professional setting. The L112 has the tweeter model 044, a by far better tweeter. The JBL L112 Speaker is 14 ¼ inches wide by 24 ½ inches tall. With the 3 way speaker and bass-reflex setup, it provides an outstanding balance of high, medium, and low sound. The weight of the JBL L112 is a bit on the heavier side at 55 lbs for a set of 2. The speakers come in a nice wood grain finish that complements the decor of any room that they're put in. The nice features about the JBL L112 include the ability to adjust each level of sound individually to produce the right balance for any room size.
The high and mid-frequency controls are hidden behind the removable grill and can be adjusted to suit your needs. Placement of the speakers is paramount to optimal performance as is adjusting the level controls.
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The grill helps keep the exterior of the JBL L112 intact and help the speaker remain clean and attractive. JBL L112 Strengths and Weakness The JBL L112 speakers have superior components considering that they were built for the consumer market. Two slight weaknesses remain:. The L112´s performance depends heavily on the correct positioning and eleveation of the speakers in consideration to the room size. Find out more about correct speaker placement and what kind of speakers should be positioned where and how. The L112 is sometimes criticized for being overly bass-oriented.
This can easily be adjusted, but in general it seems to be a frequent reason for complaints. Repairs Usually you will find the JBL L112 in good shape.
This can easily be explained by its high price in the 1980ies. Consumers who bought the L112 were very aware of its qualities and took good care of it. Ms word. The most typical issues with this speaker are rotten speaker foams. For those who have a pair of speakers that are in need of repair, finding new parts to replace the faulty parts isn't difficult. Ebay turned out to be a great resource for used speaker parts. The only downside with parts for the L112 is that they are fairly expensive. Replacing the foam surrounds of the speaker can be tricky, but if done correctly, can bring the speakers back to life.
Refoaming the L112 is a well worthwhile procedure. We recommend to use speaker foams by parts express. You can also find a fitting refoam kit here:. Alternatively, ask in one of the big HiFi forums, you will likely find assistance quickly. JBL L112 Century II Price: $500-600 Read our other reviews of JBL´s L-Series:.
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