Koss KSC75 clip-on headphones for $10 [limit 3]

Old school time! The new condition open-back famous Koss KSC75 clip-on headphones are currently on sale for $10 per pair, at Amazon by Amazon actual with up to three pairs per customer! Free shipping for Prime members or with a $25+ order. This is not a lightning deal, so expiration time unknown. They average 3.9 out of 5 based on 2500+ customer reviews.

Koss SportaPro Lightweight On-Ears for $19

The Koss SportaPro, not to be confused with the more famous PortaPro, are on sale at the moment, going for $19 in new condition, with up to three pairs per customer at the sale price, sold and shipped by Amazon actual where they average 4.2 out of 5 based on 430+ customer reviews. They have a collapsible design. This is not a lightning deal, so expiration time unknown. Free shipping with Prime or with a $25+ order.

Speaking of the more famous PortaPros, the all-black color-scheme goes for $42 with free shipping. This has less blue than the classic PortaPros… Or if you prefer a model with a mic/remote, you can get the Massdrop X edition for $38 with free shipping as one of the Massdrop In-Stock offerings (they ship within a week after ordering).

KOSS BT540i closed-back bluetooth over-ears for $96

The new condition KOSS BT540i closed-back bluetooth over-ear headphones are on sale for the very specific price of $96.49 at Amazon by Amazon actual with up to three pairs per customer. This is not a lightning deal, so expiration time is unknown. They average 4.1 out of 5 based on 55 customer reviews.

Koss KPH30i Rhythm Beige Lightweight Open On-Ears with mic/remote for $20 + S&H [MD]

Did the Guardians of the Galaxy put you in a retro music gear mood? Massdrop can help with that too, they have, fully unlocked, running for the next five days or so, the new condition Koss KPH30i Rhythm Beige lightweight on-ear headphones for $20 plus shipping. This model is based on the KTXPro1 and Pro35 but has a mic/remote to keep the smartphone users happy. Smartphone features and all, it is still open, driving the rando-consumer who buys it without reading the page in front of them mad 🙂

It comes with the usual Koss limited lifetime warranty and will ship at the end of December, which is also the end of the year. OMG, where did all the time go? It also means that another wave of new headphones is coming, because CES 2018 is coming!

KOSS ESP950 Electrostatic Headphone System for $600 [MD]

Come on Barbie, Let’s Have an Electrostatic Party! Fully unlocked at Massdrop, and with only 45 units available (14 claimed as of the time of writing), you can get the new condition KOSS ESP950 Electrostatic Headphone System for $600 with free shipping. It is estimated to ship mid-December 2017 from the vendor with the usual Koss limited lifetime warranty.

This is not the only Koss-Massdrop partnership, they also offer the Massdrop x Koss Porta Pro X for $38 with free shipping as one of their “In-Stock Drops”. These are sold like a regular online purchase (the “drops” open/close every 24 hours and items purchased during a 24 hour window get shipped in a couple of business days after that). We are tracking the “in-stock drops” in our new Massdrop Tracker.

Massdrop x Koss Porta Pro X for $38 w/free S&H

Massdrop too is participating in the Black Friday festivities. Earlier today they relaunched the Sennheiser HD6XX for $200 offer, which has over 840 units sold already.

And now they are back with another one of their exclusives, the new condition Massdrop x Koss Porta Pro X for $38 with free shipping. It comes with the usual Koss limited lifetime warranty.

In case you are not familiar with them, despite their portable looks, these are open-back!

These too are an “in-stock drop”, meaning the offer opens and closes daily, so don’t be alarmed by the countdown clock (unless it’s the actual end of the in-stock drop).

I added them to our new Massdrop In-Stock Drops Tracker.

[DEAD] Used Koss QZ-99 Closed Over-Ears with Volume Control for $25

These go in and out of stock in used condition at this price so if you check again in the future you may find it again..

The used condition closed-back over-ears with on-earcup analog volume-control dial is currently available in “Used – Like New” condition (damaged original packaging) in the very specific packaging of $24.51 by Amazon Warehouse Deals actual. The new condition price is about twice as much.

The headphones average 4 out of 5 based on 260+ customer reviews.

In-Stock Again: Koss Porta Pro Black for $42

If you don’t want to wait for future sales, the black color scheme of the good old Koss Porta Pro on-ear headphones with the retro look are back in-stock at Amazon for $42 with free shipping. They are on the same listing as the classic model with the blue hues. If you switch back and forth between the two options on the Amazon listing you’ll see their visual differences. They reside on the same listing.

[DEAD] Used Koss R-80 Closed Over-Ears for $21

Goodbye Kringle joke, as of 10/26/17 AM recheck, these sold out in used condition…

For the price of an online Kringle, you can instead get the closed-back over-ear Koss R-80 headphones, which are currently available in “Used – Very Good” condition (various scratches, damaged original packaging) for $21 through Amazon Warehouse Deals (AWD) by AWD actual, so free 2-day shipping for Prime members or with a $25+ order.

Their new condition price is currently $34.50 and they average over there 3.9 out of 5 based on 181 customer reviews.

[DEAD] Used Koss Pro4AAT Titanium Pro for $37 w/free S&H

This sold out as used as of 11/16/17 recheck…

[Read more…]

[DEAD] Koss Porta Pro KTC (w/buttons, mic) for $38

This sale ended…

[Read more…]

Used Koss QZ-99 Closed Over-Ears for $23

The Koss QZ-99 closed-back over-ear headphones with a mono/stereo switch go for around $40 in new condition at the moment, but you can cut the price almost in half by going used, you can get them in “Used – Very Good” condition for $23~ by Amazon Warehouse Deals. They average 4 out of 5 based on 260+ customer reviews at Amazon.

Koss KSC21 SportClip Clip-Ons for $6

Clip-on time! The new condition Koss KSC21 SportClip Clip-Ons are on sale for the very specific price of $6.24 with a limit of up to three pairs per customer during this sale at Amazon by Amazon actual where they average 3.7 out of 5 based on 150 customer reviews. Shhhh! This is not an Add-ON item, so Prime members get free 2-day shipping even with one pair. Non-Prime members need the usual $25+ minimum order for free shipping.

These should not be confused with their more famous cousins, KSC-75 Clip-Ons which are also on sale for $11.70 each, with a limit of three per customer and they average 3.9 out of 5 based on 2500 customer reviews. Note the that KSC-75 are open-back even though they are clip-ons 🙂

Koss KSC75 Clip-Ons for $11.70 [limit 3]

They are on sale! These goofy but highly praised Koss KSC75 clip-on open-back earphones are on a rare sale, going for $11.70, in new condition, at Amazon by Amazon actual with a limit of up to three pairs per customer.

They average 3.9 out of 5 based on nearly 2500 customer reviews, and have almost 50 questions answered, but keep in mind, some of the negative reviews are because people don’t understand what open back means 🙂 I picked up a pair of these during a sale a while back at a B&M store, but I’m “saving them” for an unboxing post before I use them 🙂

Free shipping for Prime members or with a $25+ order.

This sale ended: If you are going to have a $25+ order, you may also be interested in the official Koss 6-pack (three pairs) of replacement ear cushions going for $3.80. These are limit three sets per customer and they are an ADD-ON item, thus the $25+ order minimum.

[DEAD] 6pk of Koss Portable Replacement Cushions for $3.80

As of a 9/16/17 recheck, the price went up to $6+, but at least they are no longer an ADD-ON item…

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[DEAD] Used Koss QZ-99 Headphones w/On-Cup Volume Control for $22

As Star Trek TNG has taught us, all good things come to an end… As of 9/11/17 recheck, this sold out in USED condition…

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Used Koss HB79 Stereophone System Wireless (Infrared) for $12

Among the latest Amazon Warehouse Deals Bargain Bin clearance sales, you can get in “Used – Good” condition (cosmetic imperfections; missing user manual; damaged original packaging) the Koss HB79 Stereophone System Wireless for $12.10. Free shipping for Prime members or with a $25+ order. It averages 3.3 out of 5 based on 50+ customer reviews. It goes for $40+ in new condition.

NOTE: this uses Infrared (wireless) technology. Not bluetooth. It comes with a headset and a transmitter/base. Check reviews and answered questions for more details as the product description is rather spartan.

Koss Pro-3AA Closed Over-Ears for $50 w/free S&H

Coupon code ACC17 (previous coupon was HEADLINER) drops the price of the new condition Koss Pro-3AA closed-back over-ear headphones from $54.45 to $49 with free shipping at Musician’s Friend. Coupon expires 8/25/17.

A close price is $52 at Amazon by Amazon actual with a limit of up to two units per customer.

Heads Up (Thursday 9am ET): Koss Porta Pro X for $39 at Massdrop

Come listen to our dairy aire on Thursday 8/10/17 at 9am eastern 😉 Koss joins the Massdrop exclusives party on Thursday at 9am ET with the Koss Porta Pro X, based on the good old Koss Porta Pro. The price will be $39. Shipping information has not been revealed yet. Unlike the OG Porta Pros models, this one has a single but multi-functional button that is also a giant Massdrop logo 🙂

Used Koss BT540i Bluetooth Over-Ears for $59

The new condition closed-back over-ear KOSS BT540i bluetooth headphones go for $150+, but you can shave almost 2/3rds of that price if you go used. There are multiple “Used – Very Good” listings of this going for $59 by Amazon Warehouse Deals actual. These are “cosmetic imperfection” units with damaged original packaging. They average 4.1 out of 5 based on 50 customer reviews.

Koss ESP-950 Electrostatic Stereophone for $625

Come on Barbie, let’s have an Electrostatic Party! Mayhaps I need to start a Patreon where people can donate to block me from repeating jokes like this one 😉 Regardless, the new condition Koss ESP-950 Electrostatic Stereophone is on sale again, going for $625 with free shipping by Amazon actual. Limit one unit per customer at the moment. This is a system, you get the headphone and matching amp, unlike most headphones out there.

Koss KSC21 SportClip Clip-On for $6 [limit 3]

Clip-on action now, the new condition Koss KSC21 SportClip are on sale for the very specific price of $5.89 at Aamzon by Amazon actual with a limit of up to three units per customer. Despite the low price, they are not an ADD-ON item, so if you are a Prime member, you get free 2-day shipping with just one pair of these They average 3.8 out of 5 based on 117 customer reviews.

PS: this should not be confused with the more famous clip-ons, the Koss KSC-75.

Koss KDE250 Earphones for $100 + S&H [MD]

This defy conventional categorization, are they earbud-speakers or headphones with a mini earcup or earphones in the true sense of the word? We’ll let the various subcommittees debate this while Massdrop offers the Koss KDE250 Earphones for $100 plus shipping. The offer runs for the next seven days with an early May shipment estimate. This too is an “all sales final” promotion.

Koss ESP-950 electrostatics for $643 [was $600]

This looks like it could be a computer-generated price-match of a marketplace seller, so I don’t know how long it may last. Anyway, the new condition KOSS ESP-950 electrostatic headphone system is (headphones with dedicated amp) are on sale for $643 [WAS $600] with free shipping  at Amazon by Amazon actual. You can buy as many as you like.

UPDATE: used prices start at $471 in “Used – Very Good” condition by Amazon Warehouse Deals actual.

Prices updated here 3/23/17 PM

Koss Pro4S Full Size headphones for $108

The closed-back over-ear Koss Pro4S Full Size headphones with actual studio features (dual choice entry, pass through) is on sale for the very specific price of $107.64 at Amazon by Amazon actual with a limit of up to three units per customer. They average 4.5 out of 5 based on 56 customer reviews.

Speaking of Koss, Koss has an Amazon store and through that, they offer two limited edition colors of the good old Koss PortaPRO for $60, the Black Gold (I call “The Bee”) and the Rhythm Beige. These are fulfilled by Amazon, so you get them in around two days if you are a Prime member.

Koss KDE250 Earphones for $108 [MD]

Back at Massdrop (MD), the Koss KDE250 Earphones are fully unlocked for $100 plus $8~ flat shipping, with seven days to go on this offer. This offer ends at the end of the month and will be shipped by MD.

Koss BT540i bluetooth over-ears for $113

Koss time! Come smell listen to our dairy treble air! The new condition Koss BT540i bluetooth over-ears are currently on sale for $113~ with free shipping at Amazon by Amazon actual with up to three units per customer. They average 4 out of 5 based on 41 customer reviews. A Koss-branded case is included… Optionally you can add a FREE “Smart Home Consultation” to the shopping cart (whatever that is, but it’s free)…

[DEAD] Koss ESP-950 Electrostatics for $595

This Saturday lightning deal expired…

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[DEAD] Starts Saturday 2:54pm ET: Koss ESP-950 Electrostatics Sale

Saturday is over, and so are its lightning deals…

[Read more…]

Massdrop unlocked: Koss KDE250 for $108 and more

More offers have been unleashed and unlocked at the members-only Massdrop, starting with the unconventional-looking Koss KDE250 earphones (earphones is probably the best way to describe them, in-ears or earbuds don’t quite fit them) going for $100 plus $8~ flat shipping. They run for the next eight days with a late February 2017 shipping estimate (good thing February is a short month then!).

With the same expiration date and similar shipping estimate, but a decidedly more conventional in-ear look, the NuForce Primo8 are going for $130 plus $4~ flat shipping.

Last but not least, it’s the return one of their regular bang-for-the-buck headphones, the closed-back over-ear AKG K553 PRO go for $120, and will ship early February 2017. This offer runs for the next five days.

Koss PortaPro Limited Edition are now Prime eligible

If you are a fan of free 2-day Prime delivery, the new Limited Edition Koss Portapros are now available for $60 with free 2-day Prime-shipping (for Prime members) at Amazon. The seller is Koss’s Amazon store with the order fulfilled by Amazon. They are available in the Rhythm beige or the more colorful Rhythm Bee (official name is “Black Gold”).

Unlike the original PortaPro, these have a mic and a volume slider on the cable. See gallery pictures #1 and #4 over there.

Speaking of Portapros, the 6-pack of replacement cushions goes for $3.54 with a limit of three sets per customer but it is an Add-On item, so you must needs place a $25+ order to buy them.

Koss ‘The Plug’ In-Ear for $8.28 [limit 3]

The black color scheme of the Koss ‘The Plug’ In-Ears are currently on sale for $8.28 at Amazon by Amazon actual with a limit of up to three per customer. They are not Add-on items as of the time of writing, so free 2-day shipping for Prime members. The other colors go for more. All the colors together average 4.2 out of 5 with nearly 950 customer reviews.

Koss KTX-PRO1 Open Portable On-Ears for $10

The open-back portable on-ear Koss KTX-PRO1 with built-in volume control on the cable are on sale in new condition for just $10, with a limit of up to three units per customer, at Amazon by Amazon actual. This is not a lightning deal, so expiration date is unknown.

Koss KPH7 lightweight on-ears for $4.88 w/free S&H

In this blog we cover all ends of the price spectrum, from the $4000 Focal Utopia (currently in-stock) to the $5 Koss KPH7 feather-weight on-ears, currently on sale for $4.88 with free shipping by Digital Kynect Online on eBay (99.6%) with a limit of up to 100 per customer. Over 2200 units have been sold. It ships from the USA but does not say from which state. However, they collect sales tax in Texas per the eBay listing, so that may (or may not) be a clue…

The benefit of this offer is you can buy one pair of headphones and get free shipping, unlike orders fulfilled by Amazon which typically require a $25+ purchase when these are in the $5-ish and below range… You can check the Amazon listings but beware of low-rated sellers offering them with direct shipping (not Prime eligible).

Used Koss ESP-950 Electrostatic for $552 [updated]

The Koss ESP-950 electrostatics go for $650 in new condition, but if you are comfortable with used, you can get them for $519 in “Used – Very Good” condition (this sold out as of a 12/3/16 recheck) for $552 in “Used – Like New” condition, both by Amazon Warehouse Deals actual. The former has minor cosmetic imperfections, which is probably why it has a lower used rating.