The K 140 S is a small, light AKG made from 1980 to 1982, a semi-open headphone that sits on the ear and weighs 190 grams. AKG's data sheet promised excellent sound in the lowest to middle frequencies and treble reproduced neutrally without unnatural sharpness. It used the same self-adjusting strap headband idea as the K 240, and it was sold with either a DIN plug or a jack. Collectors say the K 140 and K 141 use the same drivers as the K 240s. Its close relative, the K 141 of 1979 to 1989, is the one sellers most often mix it up with, so check the label. It was a short-lived model, and the data sheet is most of what survives.
Before you plug in
No fault is well documented. On any AKG with this strap headband the elastics go slack with age, and the wired-in cable and old cushions are the other parts to check.
New to used headphones? How to check a used pair covers pads, cables, channel dropouts and fakes, and impedance and your amp explains what will drive it.
Buying guide
We'd buy the US pair titled Made in Austria at $67 delivered from a 99.9% seller, the cheapest K 140 here without a warning. Only five are for sale, so the $65–180 band isn't a market read, and the two asking $179 and $189 delivered, one with custom leather pads and one from Italy, are close to double the $96 median. It's 600 ohms at 96 dB, so a hi-fi receiver's headphone jack or a headphone amp suits it, and a DIN-plug version needs an adapter, so look at the plug in the photos. Ask for a photo of the label, since sellers mix it up with the K 141, and check that the strap under the headband still pulls the band down snugly. Two listings share the same title from different accounts, so compare their photos and seller history before buying either.
$66.80est. delivered
The lowest delivered K 140 here without a warning, titled Made in Austria, at $67. It isn't titled tested, so ask for a photo of the label and a short video of both sides playing with the cable moved near the cup.
Vintage AKG K140 Headphones - Made in Austria
$66.80est. delivered
About $30 under the median from a 99.9% seller, and the photo shows the pair with its cable. Check the cushions closely in the photos, since replacements aren't documented.
Vintage AKG K140 Headphones - Made in Austria
Delivered prices include shipping as eBay quoted it to a US address on Oct 14, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Snapshot
Checked . Some may have sold.
Delivered prices include shipping as eBay quoted it to a US address on Oct 14, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Used$66.80est. delivered
$59.88 + $6.92 shipping
Buy It Now$59.88
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Good buy
Made in Austria per the title. Not titled tested.
Seller: solemercantile
99.9% positive
Used$65.00delivered
$65.00 · free shipping
Buy It Now$65.00
Check the seller
Same title as another seller's listing. Compare photos and seller history.
Seller: russ1881
100% positive
Used$95.92est. delivered
$89.99 + $5.93 shipping
Buy It Now$89.99
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Check the seller
Same title as another seller's listing. Compare photos and seller history.
Seller: davidl4172
99.9% positive
Used$179.00delivered
$179.00 · free shipping
Buy It Now$179.00
Priced high
Custom leather pads per the title, not the originals. Ships from Ukraine. Nearly twice the median.
Seller: ssho
100% positive
Used$189.27est. delivered
$145.59 + $43.68 shipping
Buy It Now$145.59
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Priced high
Ships from Italy with $44 shipping. About twice the median.
Seller: gentle_walkman
100% positive
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