Do these use same speakers as Porta Pros?

Officially, I have never seen Koss admit that Kph40 and Porta Pros have the same driver. But having both, I tested them on a Steely Dan song "Lunch with Gina" and I can't tell any difference in the sound. So I think it comes to which head band you prefer, the folding Porta Pros or the single band 40.

Where can you buy a balanced cable for the KPH40 utility headphones?

Just got mine KPH40 and checked the cable. It seems that 2.5mm TRRS socket is indeed balanced, but configured in 3.5mm standard (T: R+, R: L+, R: L-, S: R-). So it's NOT compatible with 2.5mm balanced output (like FIIO BTR5) using "straight" cable. You would have to use crossed cable for this setup (haven't found one yet), or use device with 3.5mm balanced standard.

Does anyone know when these will be back in stock? I would love to get a pair! :-)

I Believe these are Quite available now (compared when 1st introduced !) either through Amazon- or Koss Factory Direct.

Koss should make a bluetooth ‘pendant’ for the utility series. that would be the icing. does any know of a bluetooth receiver with 2.5 mm termination?

There are none. The problem here is you need to convert the 2.5mm trrs configuration with a wire. You can get any wire which fits hd598 either balanced or unbalanced. Then only connect to a Bluetooth pendant.

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Koss KPH40 Utility On-Ear Headphones, Stealth Grey, Interchangeable Cord

Product ID: 379307046

Details

Brand
Koss
Color
Stealth Black
Ear Placement
On Ear
Form Factor
On Ear
Impedance
60 ohm

🎧Open-back design for immersive sound

🪶Ultra lightweight stainless steel chassis

⚙️Detachable cords for versatile connectivity

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Description

🎶 Elevate your audio game with Koss KPH40 — where retro style meets future-ready sound.

LEGACY OF LEGENDARY SOUND - Built on decades of Koss innovation, these headphones deliver the iconic sound quality trusted by audiophiles worldwide.
CUSTOMIZABLE FIT AND STYLE - Choose from standard or oversized cushions in vibrant colors to match your mood and maximize comfort.
AUDIOPHILE GRADE SOUND CLARITY - Experience crystal-clear highs and deep bass from 15Hz to 25kHz, bringing your music to life with every note.
ALL DAY COMFORT WITH RETRO FLAIR - Soft foam ear cushions and a sleek stealth grey design ensure you stay stylish and comfortable during marathon listening sessions.
SEAMLESS MULTI DEVICE COMPATIBILITY - Switch effortlessly between USB-C, 3.5mm, and Bluetooth devices with the innovative detachable cord system.

The Koss KPH40 Utility On-Ear Headphones combine an open-back design and ultra-lightweight stainless steel chassis to deliver high-fidelity sound from 15Hz to 25kHz. Featuring a detachable cord system compatible with USB-C, 3.5mm, and Bluetooth devices, these headphones offer versatile connectivity and customizable comfort with soft foam cushions available in multiple sizes and colors. Perfect for professionals and audiophiles seeking premium sound and style in a sleek stealth grey finish.

Specifications

Additional Features	Lightweight
Age Range Description	Adult
Antenna Location	Everyday Use, Traveling, Exercising, Recording
Asin	B09KZC94X1
Audio Driver Type	Dynamic Driver
Best Sellers Rank	#4,793 in Electronics (See Top 100 in Electronics) #94 in On-Ear Headphones #379 in Earbud & In-Ear Headphones
Brand Name	Koss
Built In Media	Cable
Cable Features	Detachable
Color	Stealth Black
Compatible Devices	Devices with 3.5mm audio jack, USB-C port, or Lightning port
Connectivity Technology	Wired
Control Method	Touch
Control Type	Media Control
Controller Type	Wired
Customer Package Type	FFP
Customer Reviews	4.3 4.3 out of 5 stars (1,351) 4.3 out of 5 stars
Earpiece Shape	Rounded, flat or slightly curved surface
Enclosure Material	Stainless Steel
Frequency Response	25000 hertz
Headphone Folding Features	On Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	On Ear
Impedance	60 ohm
Item Weight	0.11 kg
Manufacturer	Koss
Model Name	KPH40 Utility Parent
Model Number	KPH40 Utility Parent
Noise Control	None
Number Of Items	1
Sensitivity	101 db
Style Name	open-back
Theme	Retro
Unit Count	1 Count
Upc	021299197455
Warranty Description	Limited Lifetime Warranty
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth

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10460 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

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