JBL L-150 Vintage Floorstanding Speakers

For sale: 1 pair of excellent condition JBL L150 loudspeakers from ~1979.  All original drivers, woofers refoamed about 10 years ago and cabinets are in excellent condition with a few scratches here and there typical for 40 year old speakers.  Grills are original and in excellent structural shape and include the JBL logos, but could use new fabric.  Only cosmetic issue is that the MDF foot board on one speaker is damaged (see pic), should be easy to replace.  Speakers are hooked up and ready for audition.

I also just replaced all of the electrolytic capacitors with poly Clarity Caps of equivalent value ($180), lubed the scratchy pots, and upgraded the binding posts to 5-ways (kept all original parts for collectors).  Really brought the speakers back to life!

Reason for selling: Wife is asking me to clean out the collection, please make an offer if interested.  Only available for local pickup near Pasadena, CA.

The JBL L150. Capable of live-performance volume levels with true deep bass reproduction and high efficiency, the JBL L150 is a worthy addition to JBL's line of outstanding loudspeaker systems. JBL designed each component of this three-way floor-standing model for maximum power-flat frequency rsponse, controlled dispersion, and extended bandwidth. The newly developed low frequency driver is the product of over two years of intensive research by JBL engineers. The result of this careful engineering is clearly audible: smooth,transparent sound at any volume level, over a frequency range extending from the lowest organ tones to the limit of audibility and beyond. JBL takes as much care with the appearance as with the sound, and the elegant columnar design occupies little floor space and fits comfortably into any room.

Advantages of the Floor-Standing Design. While bookshelf loudspeakers systems such as the JBL L150 have reached a high degree of refinement, there are a number of significant advantages to the floor-standing design of the JBL L150. Most immediately apparent to the listener is the increased bass performance. The JBL L150 will comfortably reproduce the power of an organ or bass guitar; if the bass information is in the music, the listener will hear it. To accomplish this, JBL engineers utilized both the larger enclosure volume of the floor-standing design and a passive rediator. The bass performance of the L150 is true deep bass, without the artificial boost in the mid-bass region that often substitutes for actual low frequency reproduction. The response of the L150 extends to the lowest octaves and is completely natural in sound with no hollow quality.

Another very audible advantage of the JBL L150 is the placement of the mid range and high frequency drivers at approx. ear level of the listener. Such placement aids in the perception of the sound as being "live", and also reduces the proportion of high and mid-frequency energy that is absorbed by furniture in the room. Although placing a bookshelf system on a tall stand will produce the same effect, the L150 provides much better bass performance and is also more easily integrated visually into a room.

A loudspeaker system should do more than merely reproduce the notes. It should bring the essence of the live performance into the living room. Listen to the L150 and hear what we mean.

Specifications
JBL has traditionally refrained from listing data for which no widely accepted test procedures have been establoshed. In the absence of such standards, any laboratory can legitimately produce a variety of values, depending on the conditions selected.

System
Max. Recommended Amplifier Power: 300 watts per channel
Nominal Impedance: 8 ohms
Crossover Frequencies: 1,000 Hz; 4,000 Hz 
System Sensitivity: 88 dB SPL, (1W/1m)

Low Fequency Loudspeakers 
Nominal Diameter: 300 mm (12 inch) 
Voice Coil: 76 mm (3 inch) copper 
Magnetic Assembly Weight: 4,7 kg (10¼ lbs)  
Flux Density: 1.05 tesla (10,500 gauss) 
Sensitivity (Averaged from 100 Hz to 500 Hz, within 1 dB): 89 dB SPL (1W/1m)

Midrange Loudspeaker 
Nominal Diameter: 130 mm (5 inch) 
Voice Coil: 22 mm (⅞ inch) copper 
Magnetic Assembly Weight: 0,74 kg (1⅝ lbs)  
Flux Density: 1,4 tesla (14,000 gauss) 
Sensitivity (Averaged from 1 kHz to 3 kHz, within 1 dB): 91 dB SPL (1W/1m)

High Frequency Dome Radiator 
Nominal Diameter: 25 mm ( 1 inch) 
Voice Coil: 25 mm (1 inch) aluminum 
Magnetic Assembly Weight: 0,68 kg (1½ lbs)  
Flux Density: 1,4 tesla (14,000 gauss) 
Sensitivity (Averaged above 5 kHz, within 1 dB): 90 dB SPL (1W/1m)

General 
Finish: Oiled walnut 
Grille Colors: Brown, rust, camel 
Dimensions (W x H x D): 1054 x 432 x 330 mm (41½ x 17 x 13 inch)
Weight (net): 36,4 kg (80 lbs)