sE Electronics KLS150STD Professional closed-back over-ear headphones

sE Electronics KLS 150 Professional Closed-Back Headphones

Hear the details. Trust what you're hearing.

The sE Electronics KLS 150 brings sE's professional audio know-how to a completely new category: headphones. Designed for recording, mixing, critical listening, and live sound, the KLS 150 gives musicians and audio professionals a detailed, balanced listening experience with the isolation and durability you need for real-world use.

At the heart of the KLS 150 is a custom-engineered 40mm dynamic driver designed to deliver powerful, detailed sound with low distortion and accurate low-frequency reproduction. Whether you're tracking in the studio, working on a mix, or monitoring a live performance, these headphones are designed to help you hear what's actually happening—not just make everything sound good.

Dial In Your Low End

One of our favorite features of the KLS 150 is the adjustable Bass Control. Instead of locking you into one headphone voicing, sE lets you adjust the low-frequency response to better fit your listening preference or the job you're doing.

Want a more neutral reference for mixing? Dial it in. Want some extra low-end punch while you're tracking or just listening to music? You can do that too. It's a simple idea that makes these headphones surprisingly versatile.

Made for the Studio—and the Real World

The KLS 150 uses a dual-shell closed-back earcup design to provide strong passive isolation. That means less outside noise getting in and less headphone bleed getting out—especially useful when you're recording with an open microphone or monitoring in a loud environment.

Premium memory foam and leatherette ear pads provide a comfortable seal for longer sessions, while the rugged construction is designed to handle life outside the studio. The earcups also swivel 90 degrees for quick one-ear monitoring, and the detachable cable uses a locking connection so it stays put while you're working.

Why We Like It at Brighton Music Center

The KLS 150 isn't just another pair of studio headphones. The adjustable Bass Control is genuinely useful, the closed-back design makes them a great choice for both recording and live sound, and they're comfortable enough for the long sessions where a cheap pair of headphones starts reminding you exactly why it was cheap.

We also like that sE built these as working headphones. They're made for musicians, engineers, producers, and creators who need one pair of headphones that can move between the studio, rehearsal room, stage, and home setup without missing a beat.

Features

 
• Professional closed-back, over-ear headphones

 
• Designed for recording, mixing, critical monitoring, and live sound

 
• Custom-engineered 40mm dynamic driver

 
• 12 Hz–28 kHz frequency range

 
• 39-ohm impedance

 
• Adjustable Bass Control lets you tailor the low-frequency response

 
• Dual-shell earcup design provides excellent passive isolation

 
• Premium memory foam with leatherette ear pads

 
• 90° swiveling earcups for easy one-ear monitoring

 
• Rugged, road-ready construction

 
• Locking detachable cable

 
• Interchangeable earcup covers

 
• Foldable design for easier storage and transport

What's in the Box

 
• KLS 150 headphones

 
• Earcup covers

 
• Earcup cover opening tool

 
• Protective drawstring pouch

 
• 3-meter / 10-foot straight cable

 
• 1/8" to 1/4" screw-on adapter

 
• 1/8" to USB-C adapter

Whether you're recording your next track, mixing a session, running sound at a show, or just want a pair of headphones you can trust, the sE Electronics KLS 150 gives you professional monitoring with a few smart features that make them stand out from the crowd.

Model:	KLS150STD
Manufacturer:	sE Electronics

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