Koss Pro4S Full Size Over-Ear Studio Headphones, Detachable Cord with Dual Choice Entry, Black with Silver Trim

Price: $99.99
(as of Feb 15, 2026 09:24:45 UTC – Details)

Product description

Pro Audio. Pro Design.

The Koss Pro4S Studio Headphone is specifically crafted for music and audio professionals.

High-Fidelity Audio Accuracy

All-new SLX40 elements deliver incredibly accurate and unbiased sound from 10-25,000 Hz.

Aluminum Construction

Aluminum ear-cups with a unique pivoting hinge system allows for up to 130 degrees of swivel.

Choose a Side

Plug into the L or R ear-cup. The opposite side becomes an output, allowing pass-through listening.

Designed For Extended Use

Soft breathable mesh headband and memory foam cushions provide an incredibly comfortable experience.

1 Pro4S Studio Headphone

2 Unbiased Audio

3 Pro Design

4 Dual-Choice Entry

5 Uncompromising Comfort

D-Profile Earcup

The D-profile mimics the shape of the ear, creating an ideal seal for the most consistent sound reproduction and incredibly natural fit.

Koss SLX40 Elements

All-new SLX40 elements with a 10-25,000 Hz frequency response deliver incredibly accurate and unbiased sound.

Mesh Headband

An adjustable headband with soft breathable mesh makes the Pro4S Studio Headphone incredibly comfortable for long studio sessions.

Memory Foam Cushions

Plush memory foam cushions wrapped in a soft protein leather create a tight comfortable seal around the ears.

Pro Sound. Pro Design. Aluminum Construction

An all-new integrated, metal-on-metal assembly with durable lightweight aluminum ear-cups coupled with a unique pivoting hinge system allows the ear-cups to swivel up to 130 degrees as well as fold completely flat for easy storage.

Dual-Choice Entry

The Pro4S Studio Headphone features a detachable cord with dual-choice entry, allowing the user to choose which ear-cup to connect to for optimum adaptability. Once the cord is attached, the opposite side becomes an output, allowing pass-through listening or daisy chaining for extended monitoring.

Frequency Response 10-20,000 Hz Impedance 35 Ohms SPL 99 dB Drivers Koss SLX40 Elements Connection Dual-Choice 3.5mm entry Cord 4t/1.2 m coiled cord with 3.5mm to 6.3mm adapter Headband Breathable Mesh Cushions Memory foam cushions with protein leather covering Included Pro4S Studio Headphone, hardshell case, 4ft cord and 6.3mm adapater

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Customer Reviews

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4.6 out of 5 stars 17,035

4.4 out of 5 stars 2,185

3.9 out of 5 stars 236

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Price

$99.99$99.99

$39.99$39.99

$59.99$59.99

$49.99$49.99

$39.99$39.99

$29.99$29.99

$19.99$19.99

Headphone Type

Over Ear

On Ear

On Ear

On Ear

On Ear

On Ear

Ear Clip

Connection

3.5mm (with 6.3mm adapter)

3.5mm

3.5mm

Utility Series

Utility Series

3.5mm

3.5mm

Utility Series

—

—

—

3.5mm, USB-C & Lightning

3.5mm, USB-C & Lightning

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—

Audio Controls

—

—

In-Line Remote

Utility Cord Remote

Utility Cord Remote

In-Line Remote

—

Microphone

—

—

In-Line Remote

Utility Cord Remote

Utility Cord Remote

In-Line Remote

—

Noise Cancelling

Noise Isolating

—

—

—

—

—

—

Adjustable Headband

—

—

—

—

—

—

—

Collapsible

Yes

Yes

Yes

Yes

—

—

—

Carrying Case/Pouch

Hardshell Case

Carrying Pouch

Hardshell Case

Carrying Pouch

—

—

—

Design Your Music with these professional, unbiased, fine-tuned Studio Headphones
Aluminum Construction – comfort and durability meet in this lightweight headphone
Dual Choice Entry – choose either left of right cord entry and monitor through multiple headphones with a unique pass-through feature
Contour Sealing Cushion – the unique D-profile closes gaps around the ear, improving comfort, fit, isolation, and sound
Koss SLX40 Dynamic Element precisely tuned to accurately convey the sound produced in the studio. Connectivity Technology: Wired Detachable