DIATONE TW-25 Speaker Tweeter Unit PAIRMethodCone type tweeter unitAperture5cmImpedance13 ?Rated input20WSimple Continuous : 3WLow resonance frequency1500HzPlayback frequency band1500 Hz to 16000 HzOutput sound pressure level102dB/W (at 50 cm)Effective vibration radius2.0cmEquivalent mass of the vibration system0.37grVoice Coil Diameter1.6 cm ?Magnetic flux density18000gaussTotal flux11.5x104maxwellsPermanent magnet30 ? x30Baffle opening diameter81mmOuter Diameter DimensionDiameter 102x Depth 70.5 mmWeight1.1kgPlease make an offer and we will give you the best price!Our price is 100% negotiable! Payment PayPal ONLY. Please pay within 5 days after auction is finished. Shipping We ONLY ship to buyers Paypal registered address. Returns Items that are faulty beyond the description given on our auction site should be returned for a full refund. Please contact us by e-mail if items delivered are faulty. However, please send the item back to us. About us Our product is 100% authentic! We dispatch items from Japan. We provide our goods and services based on our motto “Your complete satisfaction is our ultimate goal”. Therefore, please rest assured and make your bid with ease. Please Note International Buyers Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility. Please check with your country customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges. I do not mark merchandise values below value or mark items as gifts- US and International government regulations prohibit such behavior.

Two pairs available. includes mounting hardware. All measure 5.6 ohms. Check out my other listings for more unique items and audio gear. Please bid with confidence. We have been selling on Ebay over 10 years without trouble. Thank you for taking the time to check out my other listings to take advantage of combined shipping costs.

Pair. Fully functional. Check out my other listings for more unique items and audio gear.Please bid with confidence. We have been selling on Ebay over 10 years without trouble. Thank you for taking the time to check out my other listings to take advantage of combined shipping costs.

A speaker system developed as a music reference for high-sampling digital audio. A 30 cm cone type woofer is installed in the low range. Aramid honeycomb is used for the diaphragm. Aramid fiber is an aromatic polyamide long fiber with high strength, high elasticity, light weight and moderate internal loss. This material is used as a skin material and H. D. (high damping) alloy is sandwiched as a honeycomb core. 3-axis woven aramid fiber is used for the edge that supports the diaphragm. By demonstrating strength in all directions, dispersion resonance at high input is suppressed. In addition, by entwining special damping agent into the fiber, high-order natural resonance of the diaphragm and edge itself is suppressed, and the texture is improved. The magnetic circuit is equipped with A. D. M. C. -m (Advanced Magnet Circuit-music) to improve response to input signals. The mid-range features a 6 cm dome mid-range. B for the diaphragm4Uses C Pure Boron. B4C has a high specific elastic modulus second only to crystalline diamond and moderate internal loss, and is used in the D. U. D structure which is the diaphragm structure of the Diatone tradition to obtain excellent response. B4C has a very high melting point of 2,450 ?, so it was said that it was impossible to mold with conventional technology. However, Diatone has solved this problem by its unique plasma spraying method. The magnetic circuit uses a hybrid D. M. with a highly rigid frame structure. The plate portion is directly fixed to the baffle plate and wrapped in aluminum alloy stings to improve the S/N feeling. A 2.3 mm dome type tweeter is installed in the high range. B for Tweeter as well as mid-range4C pure boron boron diaphragm has a D. U. D structure, enabling high-speed playback with less signal transmission loss. Hybrid D. M. is used for the magnetic circuit and frame structure, enabling high-quality playback. The network section employs an independent power supply system that eliminates mutual interference between units, and a distributed configuration to suppress current modulation caused by interference between network elements. The tweeters high-pass filter uses carefully selected elements with particularly excellent high-frequency characteristics. It uses uncompromising parts such as capacitors with low tan ? and unique air-core coils. In addition, it uses crimping wiring without soldering to increase signal purity. On Aug-21-23 at 08:50:27 PDT, seller added the following information: Price is for one speaker. https://audio-heritage.jp/DIATONE/diatoneds/ds-2000z.html