Koss KPH40 Utility

On-ear wired headphones with detachable cord, part of Koss’s Utility Series and Retro Style Collection

Overview

It belongs to both the Koss Utility Series and the Retro Style Collection, sharing acoustic design principles with legendary Koss models like the Porta Pro and KPH30i. Marketed under full names including "Koss KPH40 Utility On-Ear Headphones," it features a retro aesthetic and modern functionality. The design emphasizes portability and convenience with an ultra-lightweight build and a detachable 3.5 mm cord system.

Specifications

Frequency Response	15 - 25,000 Hz
Impedance	60 Ohms
Driver Type	Dynamic driver
Connection Type	1/8 in. (3.5 mm)
Cord System	Detachable cord system
Headband	Sleek stealth grey stainless steel headband
Cushions	Soft foam cushions
Item Weight	0.1 Kilograms
Style	On Ear
Style	Retro
Color options	Stealth Black, Rhythm Beige

Design

The KPH40 Utility features a detachable cord system and an ultra lightweight design, built on the acclaimed sound principles of the Porta Pro and KPH30i. It includes a sleek stealth grey stainless steel headband and soft foam cushions, combining durability with comfort.

Context

The KPH40 Utility is part of Koss's "Retro Style Collection" and the "Utility Series," positioned alongside models like the KPH30i, Porta Pro Limited Edition, and Pro4. It is considered among Koss's legendary line of headphones, leveraging heritage audio engineering in a modern form.

Market

The current market price for a new KPH40 Utility is $39.99. Some owners have reported durability issues, with one noting the headphones broke after about six months of consistent casual use.