The Fostex TH1100RPmk2 is the open-back flagship of the Fostex RP series and represents the consistent further development of the manufacturer's high-end planar magnetic headphones. At its heart is the so-called Premium RP driver, a large-area planar magnetic transducer where the diaphragm is driven uniformly across its entire surface. This principle ensures a particularly precise, fast, and low-distortion reproduction with high detail fidelity and excellent impulse response.

In the mk2 version, the driver has been further optimized, particularly through improved internal air damping. This allows for finer control of the diaphragm's movement, which leads to more substance and control, especially in the low-frequency range, while simultaneously maintaining clarity and resolution across the entire frequency spectrum. The result is a very balanced, high-resolution sound image with precise spatial imaging and accurate localization of individual sound sources.

As an open-back headphone, the TH1100RPmk2 offers a particularly wide and natural soundstage. The design has been specifically tuned to enable an airy reproduction with low listening fatigue, making it particularly interesting for longer listening sessions and critical music listening.

The build quality is also at an absolute top level. The housing is made of solid maple wood and is hand-dyed using the traditional Japanese Awa-indigo technique. This elaborate craftsmanship gives each piece an individual appearance and combines classic artistry with modern audio technology. At the same time, the dense wooden housing helps to minimize unwanted resonances and keep the sound clean and controlled.

Wearing comfort has also been revised. New ear pads with a dual-layer structure adapt better to the shape of the head and are made of durable, protein-based synthetic leather. This is complemented by a flexible headband featuring high-quality materials such as sheepskin, ensuring a comfortable fit even during extended use.

Overall, the TH1100RPmk2 is aimed at very demanding listeners who are looking for a combination of maximum resolution, natural spatiality, and high-quality workmanship. It is among the most technically advanced models in the Fostex portfolio and combines planar magnetic precision with traditional Japanese craftsmanship.

Design:
open, dynamic (planar magnetic / RP)

Driver:
RP planar magnetic diaphragm (Premium RP Driver mk2)

Impedance:
32 Ω

Sensitivity:
approx. 96 dB/mW

Maximum input power:
3,000 mW

Frequency response:
10 Hz – 40,000 Hz

Weight:
approx. 420 g (excl. cable)

Cable:
2 m long, detachable, 7N high-purity OFC copper

Connector:
gold-plated 6.3 mm stereo jack

Connection system:
2-pin (L/R separated)

Earpads:
protein-based synthetic leather

Headband:
sheepskin / comfortable padding

Housing:
maple wood with traditional Awa indigo dye

Herstellerangaben:

Fostex
1-1-109 Tsutsujigaoka
Akishima
196-8550 , Tokyo
Japan
support@fostex.jp

Verantwortliche Person:

Megaaudio GmbH
Fieldborn 3
55444 , Waldlaubersheim
Germany
info@megaaudio.de