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Posted (edited)

I am  considering selling my very good condition JBL 4350 studio Monitors and am looking for expressions of interest. 

 

Item: JBL 4350A Studio 4 way bi-amp speaker monitors
Location: Auckland New Zealand
Price: Current international prices range from about $10,000USD - $20,000USD - looking for $12,500.00 NZD ono  - plus shipping charged at calculated cost 
Item Condition: Good vintage - all drivers are good with all surrounds replace proffesionally approximatly 2 years ago. Covers in brocken & poor condition (who uses them anyway?)
Reason for selling: Considering a change
Payment Method: Pickup - Cash, Paypal + 3% Cash into Kiwibank account.
Extra Info: These are outstanding speakers. The biggest & some would say the best studio monitor JBL ever made. In perfect original working condition there is much that could be done to make them a super-monitor. They are rare with only ever less than 10 pairs available internationally. Though they are large they are for studio monitoring & sound great even in mid field listening position. 

 

Grab a rare chance to own the mac-daddy JBL Studio Monitor. 

 

Taken from the 20K USD Ebay ad

 

The Ultimate Studio Loudspeaker Original JBL Model 4350 Studio Monitor.

 

 

 

The JBL 4350 is a four-way system designed for bi-amplification. It achieves smooth reproduction within 3 db from 30Hz to 20 kHz with controlled high frequency dispersion and exceptional transient performance. These Studio monitors are capable of wide dynamic range with low distortion and of the high acoustic output required for precise reproduction of the original sounds.

 

 

Bi-amplification

The two low frequency loudspeakers are driven independently of the other components in the system. This allows the utilization of two moderately powered amplifiers rather than a single large model lessen the possibility of distortion, even at high volume levels.

 

Low Frequency Loudspeakers

Two 15 inch (380 mm) low frequency loudspeakers are mounted in in a ported enclosure that provide accurate reproduction and high power handling capacity at very low frequencies. Each loudspeaker is driven by a 4 inch (100 mm) diameter voice coil, fabricated of edgewound copper ribbon wire and an 18 5/8 lb (8.5 kg) magnetic assembly with a flux density of 12,000 gauss  (1.2 T).

 

Midrange Loudspeaker

Music fundamentals lying in the region between 250 Hz and 1.1 kHz are reproduced by a 12 inch (300mm) loudspeaker housed in a sealed sub-chamber and driven by a 4 inch (100 mm) edgewound copper ribbon voice coil. The driver achieves high acoustic efficiency and effortless reproduction even at extreme volume levels.

 

 

 

High Frequency Compression Driver

Reproduction from 1.1 to 9 kHz is accomplished by a massive compression driver energized by a magnetic assembly weighing 23.75 lb (11 kg). Its 4 inch (100 mm) edgewound aluminum ribbon voice coil suspended in a magnetic field of 18.000 gauss (1.8 T) drives a diaphragm pneumatically drawn to shape 0.003 inch (0.08 mm) aluminum alloy.

 

Horn/Lens Assembly

High frequency output is distributed by an exponential horn combined with a slant plate acoustic lens. The 11 plates of the lens is set an angle of 38 degrees and operates in a manner analogous to a divergent optical lens. The lens provides controlled propagation of high frequency acoustic energy.

 

Ultra-High Frequency Transducer

The highest octave of the audio spectrum is reproduced by a compression driver specifically designed for ultra-high frequency reproduction and dispersion. Its 3.25 lb (1.5 kg) magnetic assembly develops a flux density of 16,500 gauss (1.65 T) and drives a 1.75 inch (45 mm) edgewound aluminum ribbon voice coil. The driver utilizes a ring diaphragm pneumatically formed of 0.0022 inches (0.06 mm) in anodized aluminum foil stock. Output is directed through a diffraction horn providing 90 degree dispersion in the plane perpendicular to the diffraction slot while restricting dispersion in  the vertical  plane to approximately 40 degree. The maintains smooth response within 3db to 20 kHz.

 

Frequency Dividing Network

The low frequency loudspeaker operates to 250 Hz and require an attenuation rate of 12 db per octave below and above the crossover frequency. Transition may be accomplished with Electronic Frequency Dividing Network or with several electronic crossovers or filtering devices commercially available.

 

Enclosures

 

Components of the 4350 are housed in a rigid enclosure incorporating two acoustic chambers. The two low frequency loudspeaker are housed in a bass reflex chamber which has an internal volume of 9.5 ft (265 liters). Proper loading to 25 Hz is accomplished by a distributed port consisting of 6 openings. The midrange loudspeaker is mounted in a second sealed sub chamber.

 

Specification

 

 

Maximum power Input

 

 

     Below 250 Hz                                             200 watts continuous sine wave at 4 ohm

 

 

 

     Above 250 Hz                                             100 watts continuous sine wave at 8 ohm

 

 

                                                                                                                                                   

 

Nominal Impedance 

 

     Below 250 Hz                                             4 ohm 

 

     Above 250 Hz                                             8 ohm

 

                                                                                                                                                   

 

 

 

 Power output                                                  110 db SPL pink noise measured

 

 

                                                                         at 10 ft (3 m) in a room volume of

 

                                                                         2000 ft (57 m) with ½ rated power

 

                                                                         input (-3 db)

 

                                                                         126 db SPL approximate program

 

                                                                         peak output measured a 10 ft (3 m)

 

                                                                         with ½ rated power input (average)

 

                                                                                                                                                  

 

Frequency Response

 

 

  Sine wave, on-axis                                        30 Hz – 20 kHz, -3 db

 

   1/3 – octave band                                         -3 db at 31.5 Hz, +2 db at 1 kHz

 

  (500Hz reference)                                         +2 db at 16.5 kHz

 

 

 

                                                                                                                                                   

Polar Response                                                No less than -3 db at 60 degree horizontal

 

 

                                                                         and 30 degree vertical to 12 kHz

 

                                                                                                                                                  

 

 

Distortion

 

 

½ power, 108 db SPL                                      1% or less third harmonic from

 

10 ft (3 m)                                                       35 Hz to 1.2 kHz

 

single frequency                                              3% or less third harmonic from

 

                                                                         1.2 to 5 kHz

 

1/10 power, 101 db SPL                                  0.6% or less third harmonic

 

10 ft (3 m)                                                        generation from 1.2 to 5 kHz

 

 

single frequency

 

Crossover Frequency

 

     Low                                                             250 Hz electronic, 12db/octave

 

     Mid                                                              1.1 kHz

 

     High                                                             9 kHz

 

 

 

                                                                                                                                                   

Finish                                                                 Verneered oiled walnut

 

 

                                                                                                                                                                     

 

 

Grille                                                                  4 blue fabric  damaged

 

 

 

 

                                                                                                                                                    

Enclosure Volume                                             

 

 

  Low Frequency                                                9.5 x 9.5 ft (265 litres)

 

  High frequency                                                1.6 x 1.6 x 1.6 ft (45 litres)         

 

                                                                                                                                                     

Net Weight                                                          260 lb (118 kg)

 

 

Shipping Weight                                                 303 lb (138 kg)

 

 

 

                                                                                                                                                     

 

 

 

http://www.jblpro.com/pub/obsolete/4350b.pdf

Edited by Beeman
  • Like 4

Posted

Omg.

She who must be obeyed would slice off some vital bits if I brought these home

Just beautiful though

GLWS

Posted

ill offer $500

NB; there is a very good reason why ,the moderator ,suggests a price be placed rather than offers

as this is a

FOR SALE  topic

not

an auction site

  • Like 1

Posted

You would have to be sheepish to make such low offers

  • Like 1

Posted

It's not right I'm only joking around. I wish i could get it for $1,000.oo

 

So your bid is withdrawn?

  • Like 1
Posted

They may be fabulous sounding speakers, but I don't even need my better half to recognise that visually they would be difficult to live with.

Posted

OK, so of course I'm going to ask what are considering replacing these with? But you probably won't let us all know. :)

Posted (edited)

They may be fabulous sounding speakers, but I don't even need my better half to recognise that visually they would be difficult to live with.

 

Have to disagree

Edited by adamg
  • Like 2

Posted (edited)

Just told my wife I wanted them,

Got one of those glares.

Could be a little hard to sell the Dacore aspect of these speakers to her I feel

Oh well.

Edited by Bill125812
Posted

They may be fabulous sounding speakers, but I don't even need my better half to recognise that visually they would be difficult to live with.

Well, if I recall, your speakers may be twice the size of these !

Posted

I showed your pictures to my wife and she said it looked neat, so it's all relative, or an indication of what she thinks of my setup!

Impressive specs and low distortion at those SPLs. GLWTS and nice CAT preamp there.

Posted (edited)

OK thanks for all your interest.

 

My girlfriend loves them ;-) as do the many DJ's that have played tunes through them. They excell with classical & jazz & will lift the roof of with a bit of rock like Paul Wellers new song "White star".

 

I am considering replacing them with a pair of Osborn Epitome with bass bins which I have owned in the past & would like to again. They are exceptional speakers & are the only pair I know of in NZ. They are hard to price contrary to the comment made about how easy it would be to put a value on them. Asking for expressions of interest rather than offering an outright sale was hoping to work out how much interest there is in them & a relevant value. So far we have between $500 & $1000. At 120KG they are not going to be cheap to ship which also is reason to check whether this is a good place to offer them. I will happily live with the JBL's forever but if a deal can be done then I am open to offers.

 

I hope that helps explain & good like convincing your wives ;-) 

 

For anyone interested the rest of the system

 

 

 

 

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post-104993-0-83524100-1435004892_thumb.

Edited by Beeman
  • Like 4

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