Fostex TH1100RPmk2 Planar Magnetic Open-Back Over-Ear Headphone
- Premium RP Driver mk2 with optimized air damping control — uses Fostex’s largest, fully driven planar magnetic diaphragm with refined air‑damping and magnetic circuit design for exceptionally detailed, smooth, and natural sound reproduction across the frequency range.
- Hand‑dyed Awa Aizome hard maple wood housing — solid maple earcups individually dyed by Japanese artisans using traditional indigo techniques for unique looks and acoustic neutrality that enhances deep bass and clear highs
- New dual‑layer ear pads for enhanced comfort — sloped, two‑layer internal foam and durable silk‑protein synthetic leather provide improved fit and comfort for long listening sessions
- Lightweight magnesium alloy structural parts — magnesium alloy components reduce weight and minimize unwanted vibration, improving wearability and mechanical stability.
- High‑purity OFC cable with re‑cabling support — includes a detachable high‑purity (7N) oxygen‑free copper cable for clean signal transmission, with optional balanced cable support for higher‑resolution setups.
- Fostex TH1100RPmk2 headphone
- 2m 7N (99.99999%) grade high-purity OFC unbalanced cable with Φ3.5mm(2-pole)x2 to Φ6.3mm(gold-plated 3-pole) connectors
- Synthetic leather pouch
- Safety precautions
The Premium RP Driver, developed using the largest diaphragm ever used in a fully driven planar diaphragm driver based on RP technology that has been refined since 1974, has been further optimized with mk2 technology through air damping control inside the driver, flow ad-justment using damping materials and new ear pads. This achieves ideal diaphragm amplitude, particularly in the low-frequency range. The Premium RP Driver’s large diaphragm and mag-netic circuit suppress unwanted resonance, delivering sharp response, high sensitivity, smooth frequency characteristics, and excellent transient response. Additionally, the mk2 version achieves the ability to faithfully and clearly reproduce sound images from the low-frequency range to the high-frequency range in space with precise localization.
Newly adopted mk2 ear pads with a new shape and two-layer internal structure
The newly adopted ear pads in the mk2 feature a sloped design on the side that contacts the face, optimizing comfort. The internal low-density urethane foam is arranged in a two-layer structure, with a soft type on the outer side and a high-elasticity type on the inner side to con-form to the shape of the face. Additionally, the adoption of silk protein-based synthetic leather, which offers three times the durability of the previous model, ensures comfortable wear even during extended listening sessions.
Features a 2-pole 3.5 mm connector and comes with a high-purity OFC unbalanced Y cable
The mk2 version uses a 2-pole 3.5 mm connector, improving re-cable compatibility and versatil-ity. The internal wiring and included unbalanced cable utilize 7N (99.99999%) grade high-purity OFC (Oxygen-Free Copper) cable, which minimizes impurities to maximize transmission per-formance. Additionally, a separate 4.4 mm balanced cable (ET-TH4.4BL2Y) is available for purchase.
Hard maple solid wood housing finished with Awa Aizome, a traditional Japanese dye developed in collaboration with local artisans
Awa Aizome indigo, which has long been prized for its use in high-quality dyeing, was developed in collaboration with Awa indigo artisans and used to dye the hard maple solid wood housing, which is known as a material for guitars. Each piece is meticulously dyed by skilled artisans, resulting in a deep indigo blue that beautifully highlights the unique grain of hard maple. The dyeing process using “Hon-ai,” made solely from plant-based indigo, leverages the hard maple’s dense, high-density properties that do not impart unnecessary tonal coloration, delivering a robust, deep low-frequency range and clear, resonant high-frequency range. The open-type TH1100RPmk2 features double-layered aluminum etched parts at the housing opening, with meticulous fine-tuning of the opening ratio and internal components. This design reproduces a natural soundstage with high resolution and minimal listening fatigue, befitting the premium quality of the open-type RP series.
About dyeing with Awa Aizome
Awa Aizome indigo, a traditional natural dye from Tokushima, has been known throughout Ja-pan since ancient times as an indispensable dye for high-quality dyed fabrics due to its beautiful color. However, it was difficult to dye wood using conventional methods, and trial and error was repeated in adjusting the dye concentration, fermentation process, and soil preparation. The housings of the TH1000RPmk2/TH1100RPmk2 are dyed using “genuine indigo” made exclu-sively from natural indigo plants, with the dyeing process involving repeated application and drying by hand over several days. During this process, changes in temperature and humidity affect the dye’s drying, and the condition of each housing’s wood grain alters the conditions under which fine pigment particles penetrate the wood’s structure. This results in a housing that combines the deep blue unique to Hon-ai with the smooth grain of maple wood, creating a truly innovative color where each product’s texture varies from left to right.
*Genuine indigo used to dye the housing is also used as part of the blue in Hokusai Katsushika's " Thirty-six Views of Mount Fuji "
Newly adopted lightweight magnesium alloy mechanical parts
A refreshed design using Magnesium alloy for mechanical parts, such as the housing base plate and hanger, help reduce overall weight by 20% compared to aluminum. Rubber packing is used for the rotation mechanism to eliminate excess vibration as much as possible. The design con-cept of taking every detail of each part into consideration has further improved the wearing comfort.
Flexible fitting head pad and headband
The head pad and headband are made of natural sheepskin material, providing a supple and comfortable fit.
| Product Availability | Available (current model) |
| Product Type | Headphone |
| Style/Type | Over-Ear (circumaural) |
| Headphone/Earphone Cover Design | Open-back |
| Driver Count (Per Side) | 1 |
| Driver Configuration | Planar Magnetic / Orthodynamic |
| Connectivity | Fully Wired |
| Frequency Response (Hz) | 10 – 40,000 Hz |
| Impedance (Ω) | 32 ohm |
| Sensitivity | 96 dB/mW |
| Mic for Calls/Communication | None |
| Socket Connector Type | 3.5mm (Dual) |
| Jack Connector Type | 6.35mm (TRS 3-pole) [Single-ended] |
| Detachable Cable | Yes |
| Cable Length (cm) | 200cm |
| Input Connectivity Options | 6.35mm Stereo |
| Colour | Black, Blue |
| Product Weight (g) | Approx. 420 g (excluding cable) |
| Additional Tech Specs |
|
| Package Contents |
|
| Warranty | 1 year warranty (local) |
If you're based in Singapore,
- spend $300 or more for free doorstep delivery1.
($250 for Silver/Gold/Platinum VIP members) - add a few more bucks, for delivery during the night/weekend, or quicker prioritised delivery options2.
- self-collection is possible at our Showroom, based in Ubi (nearest to MacPherson MRT). Find out where, and how to get to us here.
- and yes, you may arrange your own 3rd party logistics to pickup your purchases on your behalf.
GrabExpress, Lalamove, GoGoX, RydeSEND services are welcome.
View additional Terms & Conditions associated to local doorstep delivery service.
Friends from Overseas,
- we do ship internationally.
- shipping fees are calculated according to total gross actual or volumetric weight of all item(s) in cart, whichever higher.
- shipping fees will vary depending on international carrier(s)3, and will be displayed during checkout.
- do be aware of additional import tax/VAT that may apply.
Due to recent changes in U.S. trade regulations, additional tariffs are being imposed on products manufactured in China and imported into the United States. As many of our audio products are made in China, orders shipped to U.S. addresses may be subject to an added tariff charge at checkout, reflected as a "U.S. Import Tariff Surcharge". Please note that this surcharge amount is determined by U.S. import policies and may vary significantly depending on product categories and any future policy adjustments. These charges are necessary to ensure compliance with U.S. customs requirements and to allow us to continue serving our U.S. customers reliably. We strongly encourage you to review the total cost at checkout before placing your order.
View additional Terms & Conditions associated to international door to door shipping service.
1 Terms and condition do apply for free delivery. For more information, click here to view.
2 View our updated list of local delivery options.
3 View our updated list of international carriers.
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The Premium RP Driver, developed using the largest diaphragm ever used in a fully driven planar diaphragm driver based on RP technology that has been refined since 1974, has been further optimized with mk2 technology through air damping control inside the driver, flow ad-justment using damping materials and new ear pads. This achieves ideal diaphragm amplitude, particularly in the low-frequency range. The Premium RP Driver’s large diaphragm and mag-netic circuit suppress unwanted resonance, delivering sharp response, high sensitivity, smooth frequency characteristics, and excellent transient response. Additionally, the mk2 version achieves the ability to faithfully and clearly reproduce sound images from the low-frequency range to the high-frequency range in space with precise localization.
Newly adopted mk2 ear pads with a new shape and two-layer internal structure
The newly adopted ear pads in the mk2 feature a sloped design on the side that contacts the face, optimizing comfort. The internal low-density urethane foam is arranged in a two-layer structure, with a soft type on the outer side and a high-elasticity type on the inner side to con-form to the shape of the face. Additionally, the adoption of silk protein-based synthetic leather, which offers three times the durability of the previous model, ensures comfortable wear even during extended listening sessions.
Features a 2-pole 3.5 mm connector and comes with a high-purity OFC unbalanced Y cable
The mk2 version uses a 2-pole 3.5 mm connector, improving re-cable compatibility and versatil-ity. The internal wiring and included unbalanced cable utilize 7N (99.99999%) grade high-purity OFC (Oxygen-Free Copper) cable, which minimizes impurities to maximize transmission per-formance. Additionally, a separate 4.4 mm balanced cable (ET-TH4.4BL2Y) is available for purchase.
Hard maple solid wood housing finished with Awa Aizome, a traditional Japanese dye developed in collaboration with local artisans
Awa Aizome indigo, which has long been prized for its use in high-quality dyeing, was developed in collaboration with Awa indigo artisans and used to dye the hard maple solid wood housing, which is known as a material for guitars. Each piece is meticulously dyed by skilled artisans, resulting in a deep indigo blue that beautifully highlights the unique grain of hard maple. The dyeing process using “Hon-ai,” made solely from plant-based indigo, leverages the hard maple’s dense, high-density properties that do not impart unnecessary tonal coloration, delivering a robust, deep low-frequency range and clear, resonant high-frequency range. The open-type TH1100RPmk2 features double-layered aluminum etched parts at the housing opening, with meticulous fine-tuning of the opening ratio and internal components. This design reproduces a natural soundstage with high resolution and minimal listening fatigue, befitting the premium quality of the open-type RP series.
About dyeing with Awa Aizome
Awa Aizome indigo, a traditional natural dye from Tokushima, has been known throughout Ja-pan since ancient times as an indispensable dye for high-quality dyed fabrics due to its beautiful color. However, it was difficult to dye wood using conventional methods, and trial and error was repeated in adjusting the dye concentration, fermentation process, and soil preparation. The housings of the TH1000RPmk2/TH1100RPmk2 are dyed using “genuine indigo” made exclu-sively from natural indigo plants, with the dyeing process involving repeated application and drying by hand over several days. During this process, changes in temperature and humidity affect the dye’s drying, and the condition of each housing’s wood grain alters the conditions under which fine pigment particles penetrate the wood’s structure. This results in a housing that combines the deep blue unique to Hon-ai with the smooth grain of maple wood, creating a truly innovative color where each product’s texture varies from left to right.
*Genuine indigo used to dye the housing is also used as part of the blue in Hokusai Katsushika's " Thirty-six Views of Mount Fuji "
Newly adopted lightweight magnesium alloy mechanical parts
A refreshed design using Magnesium alloy for mechanical parts, such as the housing base plate and hanger, help reduce overall weight by 20% compared to aluminum. Rubber packing is used for the rotation mechanism to eliminate excess vibration as much as possible. The design con-cept of taking every detail of each part into consideration has further improved the wearing comfort.
Flexible fitting head pad and headband
The head pad and headband are made of natural sheepskin material, providing a supple and comfortable fit.
| Product Availability | Available (current model) |
| Product Type | Headphone |
| Style/Type | Over-Ear (circumaural) |
| Headphone/Earphone Cover Design | Open-back |
| Driver Count (Per Side) | 1 |
| Driver Configuration | Planar Magnetic / Orthodynamic |
| Connectivity | Fully Wired |
| Frequency Response (Hz) | 10 – 40,000 Hz |
| Impedance (Ω) | 32 ohm |
| Sensitivity | 96 dB/mW |
| Mic for Calls/Communication | None |
| Socket Connector Type | 3.5mm (Dual) |
| Jack Connector Type | 6.35mm (TRS 3-pole) [Single-ended] |
| Detachable Cable | Yes |
| Cable Length (cm) | 200cm |
| Input Connectivity Options | 6.35mm Stereo |
| Colour | Black, Blue |
| Product Weight (g) | Approx. 420 g (excluding cable) |
| Additional Tech Specs |
|
| Package Contents |
|
| Warranty | 1 year warranty (local) |
No Reviews Available Yet. Leave Your Review
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