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SOLD - FOR SALE: JBL L100T Vintage Audiophile Speakers

Item #649382909
Info: JBL L100T Vintage Audiophile Speakers

Asking Price:
USD $899.99
Retail Price: USD $1100.00
Payment method: Paypal
Shipping weight: 38.56 (kg) Calculate Shipping
Shipping Dimension: 101.60cm x 50.80cm x 50.80cm
Condition: 9 - Excellent (?)
Date Posted: Oct 03, 17 1:31pm (PST)
Edited: Oct 08, 17 5:37pm
About Seller: chasrock
Rochester, NY
United States
[other classified ads]
Product Brand: JBL
Product Model: L100T
Feedback Received: 2  See details
100% Positive Feedback
External Feedback: chasrock1224 (689)
Days in System:5
Ships to: United States
Shipping Cost:
  • Allow Local Pickup
  • United States: $179.99 (standard)
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** This Ad is Marked as SOLD by seller and cannot be responded to. **

These are very rare to find in this all original condition. Recently re-foamed. The cabinets and grills are in excellent condition. The sound is incredible, deep tight bass, crystalline clean highs and a smooth midrange. I was extremely impressed with these. PLEASE look very closely at all the pictures, they hardly show any signs of use and age. I have the specs and a review posted below.

Now let's talk about shipping them.

Of course I would prefer a local pick up, so you could see and hear them, but that isn't always possible.

I would also highly recommend that they ship LTL. ( Double boxed, and laying down strapped to a pallet )

I am very experienced with shipping freight, as I do that for a living. So here are the details to make it happen.

You must have them shipped to a loading dock ( your place of work or perhaps a friends place of work) I will not ship to a residential house ( because there is a $150.00 fee for a lift gate in addition to the actual freight cost ) But if you are willing to pay it, I could. That would put your shipping cost at over $300.00

I can also ship them to any freight terminal close to your house and you can pick them up there!

They are too nice and too large to risk sending them FedEx ground. Although if you insist ,they will be insured, but I do not recommend it!

They will weigh about 85 lbs. each when proper packed for transport.

They will be double boxed, surrounded in foam to insure safe undamaged delivery to your home or business. Yes, the shipping cost is a little high, But they are pretty large, will weigh about 85 lbs. each when packed properly for shipping, It does require a lot of packaging and time to get them done right. I think it's worth a few extra bucks, and they can't be replaced. ( I will get them to your door safely and insured.)

P.S. My posted shipping price is always the total for the pair!!

I pride myself on extreme over protective packaging. ( Please see my feedback! ) I will only ship to the 48 contiguous states. Payment is expected in 48 hours of purchase and on the same token they will ship on the next business day. If you need more time, just send a message and we will work something out.


Type: 3 way, 3 driver loudspeaker system

Frequency Response: 35Hz to 20kHz

Recommended Amplifier: 200W (maximum)

Crossover Frequency: 800, 4500Hz

Impedance: 8Ω

Sensitivity: 91dB

Bass: 1 x 300mm cone

Midrange: 1 x 125mm cone

Tweeter: 1 x 25mm titanium dome

Finish: american walnut

Dimensions: 925 x 405 x 322mm

Weight: 29kg

Year: 1985

The JBL L100T is a floor-standing speaker system in a handsome oiled-walnut cabinet. It has a 12-inch woofer, a 5-inch cone midrange driver, and a 1-inch dome tweeter. The woofer port opens to the rear of the cabinet. The recessed binding-post terminals on the rear are spaced on 3/4-inch centers to accept dual banana-plug connectors. The L100T has no external controls or adjustments.

The black grille cloth is supported about an inch from the speaker-board on plastic mounting posts, which snap into sockets on the board. Since the speaker-board is finished to match the rest of the cabinet, the grille can be removed if desired. The woofer is centered laterally on the board, but the mid-range and high-frequency drivers are vertically aligned and offset about 1-1/4 inches right of center. This arrangement is apparently not related to imaging, since the left and right speaker units are identical (not mirror image). The JBL L100T measures 37 inches high, 16 inches wide, and 13 inches deep. It weighs about 70 pounds. Price: $1,250.00 a pair.

Lab Tests

The room response of the JBL L100T was among the flattest and widest we have yet measured from a speaker, within ±6 dB from 20 to 20,000 Hz. The differences between the response curves of the left and right speakers-measured separately, with the microphone on the axis of the left unit and about 30 degrees off the axis of the right speaker- were very small. Bass response was also relatively unaffected by boundary effects. Although the raw room response of a speaker is almost as much a property of the room as of the speaker, the response we measured from the JBL L100T was nothing less than remarkable.

The close-miked woofer response, measured separately at the cone and the port, varied only 7.5 dB overall from 20 to 900 Hz and a mere 3.5 dB between 35 and 700 Hz. Splicing the woofer curve to the room response resulted in a composite frequency response of ±3.5 dB from 20 to 20,000 Hz, which is a very impressive performance for any home speaker. With a 2.83-volt input, the system's sensitivity was 92 dB sound-pressure level (SPL) measured at 1 meter. When we drove it with 2.25 volts (corresponding to a 90-dB midrange SPL), the woofer distortion was between 0.2 and 0.5 percent from 100 Hz down to 60 Hz. Below 60 Hz, the port was contributing much of the sound output, but the distortion was still a very low 3 to 3.4 percent in the 20- to 35-Hz range.

The impedance of the L100T was at a minimum of about 5.3 ohms at 120 Hz and 5 ohms from 15,000 to 20,000 Hz. It peaked at 24 ohms at 50 Hz and varied between 5.5 and 13 ohms over most of the audio range. A 6- to 8-ohm impedance rating would seem to be reasonable for this speaker. During our pulse-power tests (one cycle on, followed by 128 cycles off), the woofer cone reached the end of its linear travel range with an input of 550 watts at 100 Hz into its 5.5-ohm impedance. The 8-ohm midrange driver handled the full 1,400-watt output of the test amplifier at 1,000 Hz with-out distortion, and the tweeter began to show nonlinearity when driven with 300 watts at 10,000 Hz (into its 6-ohm impedance).

Our quasi-anechoic FFT frequency-response measurements confirmed the exceptional width and smoothness of the L100T's response. It was flat within ± 2.25 dB from 180 to 24,000 Hz when measured at 1 meter on the tweeter's axis. Although we had no information on the crossover frequencies used in the system, response measurements with the microphone placed approximately equidistant from the woofer and midrange cones and from the midrange to the high-frequency dome revealed sharp cancellations at approximately 900 and 3,000 Hz, which would be reasonable crossover points. There was no clue to the actual crossover frequencies in the room-response measurements. The phase linearity of the system was very good; the group delay was constant within ± 0.1 millisecond from 3,000 to 20,000 Hz, and the maximum change was 1 millisecond at about 1,000 Hz. The frequency-response curves measured on-axis and 45 degrees off-axis differed by no more than 4 or 5 dB up to 10,000 Hz, the difference increasing to 8 or 9 dB at 15,000 Hz.


The excellent measured performance of the JBL L100T came as no surprise. We listened to the speakers for some time before making any tests, and it was obvious from our first hearing that these were exceptional speakers. Their balance, smoothness, and extended response at both ends of the audio spectrum were all striking, and a pair of speakers we had previously favored always came off as second-best in A/B comparisons with the L100T's.

A total lack of mid-bass boominess on male voices set the L100T apart from most other speakers- and they are few in number-that share its ability to generate clean, deep bass down to 20 Hz. Similarly, the clarity and transparency of its high-end response were distinctly superior to what we have heard from most competitively priced speakers, as well as some far more expensive models. Yet, because of its flat response, which extends well beyond the audio range, it never had a trace of "edginess" or "bite."

Although our tests showed that the L100T can handle very large peak-power inputs without damage or obvious distortion, it is considerably more sensitive than most speakers of comparable quality and can be driven to very high volume levels with any good 80-watt amplifier. As with any speaker whose woofer operates in a vented enclosure, it is advisable to limit the infrasonic output of the amplifier used with the L100T (although you are unlikely to damage this speaker with any signal that your hearing can tolerate).

This ad was originally posted on US Audio Mart US Audio Mart.

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