It seems to be the company's OS-5000T, but since there is no model number stamp and rust is severe, it is currently sold at a low price. Alnico horn type tweeter unit. Equipped with an 18 mm, 8 micron thick titanium diaphragm. The high degree of perfection can be seen from the solid, sturdy construction and fresh tone (Fujisawa Sachi)
Maintenance information: 2023.10.27 Operation confirmed
Accessories: none
Main specifications: horn type tweeter 8 Ω (measured 9.9/10.2 Ω) output sound pressure level 105 dB 7000 to 28,000 Hz 6 kg
Horn-type super tweeter with built-in network. It can be easily connected to the system. Adopts a continuously variable volume that enables fine level adjustment. You can match your main speaker by adjusting the level only. There is an appearance, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.5.16 operation confirmed
Accessories: spike holder
Main specifications: 3/4 inch diameter compression driver with pure titanium diaphragm frequency band 10 kHz to 40 kHz output sound pressure level 95 dB crossover frequency 16 kHz W107 x H67 x D166 mm 850 g
It is a super tweeter that boasts wide-range playback up to 100 kHz. It reproduces the full potential of SACD, high-resolution sound sources, etc., and brilliantly expresses the afterglow, indirect sounds, and dark noise of the music. The depth of pocket that is compatible with a wide range of speakers is also attractive. The exterior is dull. Serial 200029, 200030 (Miura Kimiya)
Maintenance Information: 2022.10.31 Operation confirmed
Accessories: original box
Main specifications: crossover frequency 20kHz/30kHz/40kHz selection Recommended crossover frequency of 7 kHz or more Main unit: W110 × H70 × D140 mm approx. 700 g Network: W70 × H70 x D210 mm approx. 850 g
The price has been reduced. 2023/4/12 Murata Manufacturing's ceramic super tweeter improved based on the ES103. The natural resonance frequency is set higher than the playback band by spherical piezoelectric ceramics, and high traceability of the diaphragm to the input signal is achieved. Excellent transient characteristics make it possible to reproduce sounds that are delicate and full of realism. It is compatible with a wide range of speakers, and the afterglow and expansion of spatial expression are remarkable. There is dullness and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.4.12 sound output confirmed
Accessories: original box (dedicated trunk case) instruction manual
Main specifications: playback frequency band 15 kHz to 100 kHz sound pressure level 90 dB impedance 8 ohms maximum allowable input 50 W (pink noise input) diameter 65 x D110 mm weight 1.1 kg
Domed tweeter with high-pass filter. A universal type that can be used for other than tannoy speakers. It goes well with speakers mainly made in Europe and can smoothly reproduce lingering and indirect sounds. The appearance is light in use, and there is paint peeling off on the terminal part and the stand part. Serial 021163 021163 (Yamato Yuki)
Maintenance information: 2019.9.27 Operation confirmed (sweep test good)
Accessories: Instruction manual stand duralumin case
Main specifications: Frequency characteristics ~ 100kHz Cutoff frequency 18kHz/20kHz/22kHz High Current Switch Lockup Switching Level Adjustment 2.0dB Step 95dB 8Ω W150 × H100 × D162 mm 1.2 kg
It is a super tweeter that boasts wide range playback up to 100 kHz. It fully reproduces the potential of SACD, high-resolution sound sources, etc., and excellently expresses the afterglow, indirect sound, and dark noise of music. The depth of the pocket that supports a wide range of speakers is also attractive. The appearance is dullness and a little dent in the grille. Serial 200179/200180 (Satoshi Yoneshima)
Maintenance info: 2021.10.31 Oscillator test good
Accessories: instruction manual, original box
Main specifications: Crossover frequency 20KHz/30KHz/40KHz selection Recommended crossover frequency 7KHz or higher Body: W110 × H70 × D140mm About 700g Network: W70 × H70 × D210mm approx. 850g
Disposal prices have been reduced! (Member discounts are not applicable) 2023/6/2 sales price 198,000 yen A dome-shaped super tweeter with a beautiful design made of solid walnut. Equipped with a high pass filter, it demonstrates the best performance when combined with Prestige series such as Westminster Royal and Canterbury. You can experience a drastic improvement in the sense of sound field. The exterior has scratches and creases. Serial 020907 (Yonejima Satoshi)
Maintenance information: 2023.6.2 good sweep test
Accessories: stand
Main specifications: efficiency 95dB 8Ω cutoff frequency 14kHz/16kHz/18kHz cutoff frequency to 100kHz W150 × H100 × D162mm (including 3-point support base) 1.2 kg per weight (including 3-point support base)
The disposal price was lowered. Member discounts are not applicable. 2022/1/9 selling price 248,000 yen. A popular horn-shaped tweeter from YL Acoustics. It is a delicate sound that is different from the gorgeous sound like JBL with a stretchy and cored sound. The amount of information unique to domestic tweeters that have been loaded is attractive. The appearance has dullness and rust floats on the body (Murakoshi Yoichi)
Maintenance information: 2022.1.8 sound output confirmed
Accessories: none
Main specifications: Horn type tweeter Playback frequency 6000~24000Hz 8Ω (measured DC resistance 8.2/8.1Ω) 102dB measured 5kg
*Stand is not included. This is a set of the popular Pioneer ribbon tweeter PT-R9 and the company's high-pass filter DN-8P. A golden combination of a beryllium diaphragm and an Alnico magnet. In addition to sound quality correction in the ultra-high range, spatial expression is expanded, and the wide sound field feel can be clearly experienced with classical sources (Fujisawa Koshi)
Maintenance information: 2023.2.9 operation confirmed
Accessories: none
Main specifications: “PT-R9” input impedance 8Ω playback frequency band 5,000 Hz to 120,000 Hz maximum input 100 W output sound pressure level 97.5 dB crossover frequency 5,000 Hz or more dimensions W134 x H89 x D179 mm weight 2.6 kg “DN-8P” crossover frequency: 12K/16K/20kHz (-12dB/oct) switchable impedance 8Ω maximum input 100W W150× H105 x D85 mm 1.0 kg