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SOLD - FOR SALE: JBL 4343 Professional Studio Monitors

Item #649386513
Info: JBL 4343 Professional Studio Monitors

Asking Price:
CAD $6500.00
Shipping weight: 81.65 (kg) Calculate Shipping
Condition: N/A (?)
Date Posted: Apr 20, 18 6:01am (PST)
Edited: Oct 17, 18 3:36pm
About Seller: FrankP
Orangeville, ON
[other classified ads]
Product Brand: JBL (JAMES B. LANSING)
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** This Ad is Marked as SOLD by seller and cannot be responded to. **

Vintage (from the late 70's), very good condition JBL 4343's. If you're reading this ad, you probably know about these monitors. Very highly regarded, the JBL studio monitors from this era were used for many years in virtually every professional recording venue. Please see the attached brochure jpegs.

The JBL 4343 utilizes a 4-way design with crossover points at 300, 1200 and 9500Hz. There is a switch on the back connection plate that enables the user to run either the internal crossover or run the monitors in bi-amp mode using an external crossover. Frequency response is 35 - 20,000Hz +/- 3db.

The driver complement is as follows:
Model 2131A 15" bass driver, Model 2121 10" mid/bass, Model 2420 high frequency compression driver, Model 2307/2308 horn/ lens assembly and Model 2405 ultra high frequency slot transducer. All these drivers utilize ALNICO magnets, by the way. Please see the attached specs and component pics jpegs.
The monitors are conservatively rated for 75 watts, but are VERY efficient and can be driven with anything from lower wattage tube amps to higher power solid state amps with ease. Deep, tight bass response even at low to medium volumes with transparent mids, highs and excellent imaging. Of course being JBLs, they also inspire awe when listened to at very high volumes. They're just a joy whatever volume you're listening at.

The drivers, crossovers and level pads are all stock, original parts and are working as they should.
Having said that, this particular pair have had a bit of refurbishing done to them. The original 2131A bass drivers were re-coned some time ago. JBL's replacement cone kit for the 2131A is the same re-cone kit used in the 2235H and that's what's in these monitors. If anything, the 2235H cone actually increases the wattage of the original 2131A motor to something more like a 2235 (250 watts compared to the 2131A's 100 watts). The bass drivers also have new foam surrounds, done about a month ago - they sound and look perfect.

The cast aluminum clamps that hold the bass drivers into the cabinet are not the originals. Two of the originals were broken and we replaced all 8 with steel clamps that are functionally the same but look slightly different. We still have the remaining 6 original clamps if you want them and care to source 2 more of the same. They are available from US Speaker.com at $2.14 US apiece. Great, but they wanted something ridiculous like $54.00 US to ship them, so clamps sourced locally were used instead.

One of the speaker grill frames had two cracks in it which needed to be repaired by using two cleats wood-glued to the frame. The frames are made from particle board - it was the only way to fix it. Happily, the repair is not visible because it's on the inside of the grill. Other than that, the grills themselves are in quite good shape as seen in the photos - a couple of tiny tears in the top corners.

The walnut cabinets were just oiled using the prescribed JBL method as found on the Lansing Heritage website - 3 parts BLO (boiled linseed oil) and 1 part turpentine. Overall cosmetically, although they look pretty good, we would still probably rate them just about a 7.5 or so out of 10. They are, after all around 40 years old. The pictures posted are "honest", and you can see mars, dents and scratches, etc., (the 24 mp camera, zoom lens and bright flash do a great job at that,) but there's nothing really that noticeable on the top and sides, in normal light and from a few feet away.

However, fair warning about the cabinets. As you may be aware, these monitors can be configured to be used on their sides instead of vertically. It would appear that these particular monitors have always been used in the vertical position, probably without stands and perhaps moved around considerably at some point. Consequently the bottoms are fairly scratched up. The bottoms have not been oiled or refurbished in any way - they're just too heavy to mess with.

Serial numbers are: Right - 18571 Left - 18573

The monitors are in Orangeville, Ontario, which is about 45 minutes north of Brampton/Mississauga. No shipping on these unless you arrange it. They weigh about 180 lbs apiece. In fact, just to move them out of the basement studio will need two strong men - and I'm not one of them!

We've seen other JBL 4343's for sale on line at much higher prices and feel that $9,000 for this pair is a good deal and very fair price.
(Price reduced to $8000.00 March 8, 2018)
(Price reduced to $7750.00 April16, 2018)
(Price reduced to $7500.00 May 11, 2018)
(Price reduced to $7250.00 June 11, 2018)
(Price reduced to $7000.00 July 16, 2018)
(Price reduced to $6750.00 July 31, 2018)
(Price reduced to $6500.00 September 7, 2018)

Don't wait guys... I can see there's a lot of people watching. Somebody's gonna jump and own these ridiculously excellent vintage studio monitors.

If you'd like to audition them, call or removed phone number for privacy and we can arrange a time that's mutually convenient.

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