Fostex T50RPmk4CL Closed-Back Planar Magnetic Headphones

T50RPmk4CL Closed-Back Planar Magnetic Headphones — RP Accuracy with Closed-Back Focus

The T50RPmk4CL places Fostex’s fourth-generation RP planar magnetic driver in a carefully sealed monitor enclosure. It is designed for recording, editing and focused listening where reduced environmental leakage matters, without giving up the fast transient response and positional precision that define the RP line.

Fostex retained the internal geometry of the semi-open T50RPmk4 and tuned the ventilation and damping around a closed-back objective. Symmetrical housings eliminate avoidable left/right acoustic differences, while either-side cable connection makes the headphone easier to live with at a desk, console or instrument position.

Every Detail Matters

• Fourth-generation, Fostex-manufactured RP planar magnetic driver
• Closed-back housing for isolation and concentrated monitoring
• Symmetrical acoustic design with cable connection on either side
• Thick low-rebound circumaural pads with angled geometry

Key Specifications

• Type: Closed-back
• Driver: RP planar magnetic
• Impedance: 28 Ω
• Sensitivity: 97 dB/mW
• Maximum input: 3,000 mW
• Frequency response: 10 Hz–40 kHz
• Weight: Approximately 330 g, excluding cable

System Pairing

These are revealing full-size headphones. A capable headphone amplifier will provide the current reserve, control and low noise needed to hear their full dynamic range. Contact PPA if you would like help matching them to your source or amplifier.

What’s in the Box

• T50RPmk4CL headphones
• 2 m OFC unbalanced cable
• 3.5 mm to 6.3 mm adapter
• Manufacturer documentation

Authorized Canadian Fostex Dealer
Princess Pasta Audio supplies genuine Canadian-market Fostex products with authorized dealer support. Available on order; ships within 10 business days.