Fostex TH500RP – Open-Back Planar Magnetic Headphones.
I also have Fostex TH-600 the legendary bass headphones!
Up for sale is the legendary Fostex TH500RP orthodynamic headphones. Imported directly from Japan, these have been meticulously maintained and show almost no signs of wear. If you are looking for a pair that looks and feels like it just came out of the box, this is it. These headphones feature Fostex's signature Regular Phase (RP) diaphragm technology, refined specifically for this premium open-back design to deliver a rich, natural, and incredibly detailed soundstage.
The build quality is world-class, featuring a lightweight yet durable aluminum and magnesium construction that ensures long-term comfort for extended listening sessions. Audiophiles and professional reviewers alike have praised the TH500RP for its unique "analog" warmth and smooth frequency response. InnerFidelity noted their "excellent sense of space," while Head-Fi enthusiasts often highlight the "buttery smooth mids" and "non-fatiguing highs" that make these a standout in the planar magnetic world.
Whether you are a collector of fine Japanese audio gear or a producer seeking a reliable reference tool, the TH500RP offers a balanced and musical performance that is hard to find in modern equivalents. The imaging is precise, and the textures are rendered with a level of realism that truly honors the recording.
Highlights & Specs:
Condition: Excellent/Near-Mint (See photos)
Driver Type: Regular Phase (RP) Planar Magnetic
Design: Open-back for a wide, airy soundstage
Materials: High-grade aluminum and magnesium housing
Included: Original cable and packaging (if applicable)
The ear cup housing is in good condition with no damage and minimal wear. The ear cup cushions are in good condition, clean and have no odor. The headband is in good condition with little to no wear. The buttons have no signs of heavy use or wear. The hinges are in good condition with minor signs of use. The ports are clean and in good condition. The earbuds are in good condition and clean. The wire is in good condition with little signs of wear.