sE Electronics KLS 150 – Professional Closed-Back Studio Headphones with Mechanically Adjustable Acoustics

The sE Electronics KLS 150 are professional closed-back, over-ear headphones featuring a mechanically adjustable acoustic system that allows the bass response to be physically altered. Unlike headphones that rely on electronic bass adjustment, the KLS 150 use a passive acoustic solution that changes the low-frequency response mechanically within the earcup system. Combined with custom-engineered 40 mm dynamic drivers, effective passive sound isolation and a rugged construction, the KLS 150 are designed for critical monitoring, mixing, recording and professional live sound applications.

The closed-back, dual-shell earcup construction helps reduce external noise and minimise headphone bleed during recording. Premium memory foam ear pads provide comfort during extended sessions, while a detachable locking cable, swivelling earcups and reinforced components make the KLS 150 well suited to demanding professional use.

Key Features:

• Professional closed-back over-ear headphones for studio, recording, mixing and live sound
  
• Mechanically adjustable acoustic system that physically changes the bass response
  
• Passive Bass Control without DSP, batteries or electronic EQ
  
• Independent bass controls with clear markings for repeatable settings
  
• Custom-engineered 40 mm dynamic drivers with neodymium magnets
  
• Frequency range of 12 Hz to 28 kHz
  
• Dual-shell earcup construction for effective passive sound isolation
  
• Premium memory foam ear pads with leatherette covering
  
• Removable earcup covers that protect the bass control settings
  
• Glass-fibre-reinforced components and corrosion-resistant spring steel
  
• Detachable 3-metre cable with locking connector
  
• 90-degree swivelling earcups for one-ear monitoring
  
• Foldable construction and laser-etched reference markings
  
• USB-C adaptor and protective drawstring pouch included
  

Technical Specifications:

• Type: Closed-back, over-ear headphones
  
• Drivers: Custom-engineered 40 mm heavy-duty dynamic drivers
  
• Magnets: Neodymium
  
• Bass adjustment: Mechanical, passive acoustic Bass Control
  
• Earcup construction: Dual-Shell
  
• Frequency range: 12 Hz – 28,000 Hz
  
• Impedance: 39 ohms
  
• Sensitivity: 98 dB
  
• Maximum input power: 1,600 mW
  
• Ear pads: Memory foam with leatherette covering
  
• Earcup swivel: 90 degrees
  
• Cable: Straight, detachable 3 m cable with locking connector
  
• Connection: 3.5 mm jack
  
• Adaptors: 6.35 mm jack and USB-C
  
• Dimensions (L × W × H): 166 × 83 × 200 mm
  
• Weight: 335 g
  

What's in the Box:

• sE Electronics KLS 150 headphones
  
• Removable earcup covers
  
• Earcup-cover opening tool
  
• Straight, detachable 3 m cable
  
• Screw-on 3.5 mm to 6.35 mm jack adaptor
  
• 3.5 mm to USB-C adaptor
  
• Protective drawstring pouch

More info: KLS-150