LE8T's ancestral 20cm cone type full range unit that makes the most of the basic design of the 130 in a small aperture. It's small and has a cute appearance, but the bright, clear, and tense sounds make you feel like JBL from the good times. There is a small repair on part of the cone (Murakoshi Yoichi)
Maintenance information: 2024.4.11 maintenance (cone repair)
Accessories: none
Main specifications: 20cm cone type full range unit, allowable input 30W, 8Ω, 97dB (1kHz), recommended enclosure, internal volume: 42L to 113L, depth: 76mm, weight: 2.3 kg
※It has been replaced with a rubber edge. A masterpiece of full range units. The overhang of the sound from mid-bass to mid-range is excellent, and the vocals resonate sensually with a life-size sound image. There is stickiness on the inside of the frame. Serial 125664/125654 (Oikawa Tetsuji)
Maintenance information: 2024.3.18 Operation confirmed
Accessories: none
Main specifications: 20cm full range Alnico magnet 8Ω 89dB input 40W depth 98mm approx. 3.5 kg/bottle
The price has been reduced. 2023/7/24 sales price 89,800 yen ※There is no problem with operation, but it is inexpensive because the corn paper has stains, dents on the center cap, and wrinkles. JBL's 38cm cone type full range unit. Unlike modern heavy bass, it reproduces bright and light low frequencies. It is a standard unit that can do many kinds of sound makeup depending on the driver or tweeter that fits perfectly. There are stains on the corn paper, dents on the center cap, wrinkles, and dirt adhering to the edges (Oikawa Tetsuji)
Maintenance information: 2023.7.24 Operation confirmed
Accessories: none
Main specifications: 38cm cone type full range unit Alnico 8Ω (actual measurement 6.0/6.2 Ω) 103dB recommended enclosure internal volume 114 to 338L frequency characteristics 50 to 6,000 Hz screw pitch (diagonal) 370 mm 7 kg
Unused item! It works great! The 610DB is a famous Diatone machine that still boasts high popularity. It's such a unit that there are no strangers to making their own. Using Alnico magnets, it is an easy-to-use full range with no peculiarities from low to high frequencies (Daiki Goto)
Maintenance information: 2024.4.3 operation confirmed
Accessories: instruction manual, original box
Main specifications: Playback frequency characteristics 70 Hz to 20 kHz output sound pressure level 92 dB impedance 8 ohms maximum input 20 W weight 0.92 kg
※ Tape marks and scratches are conspicuous, so it is sold as is. Comes with original box! Pioneer's 20cm cone type full range unit. It's an interesting unit with a mid-range that seems to emerge (Daiki Goto)
Maintenance information: 2024.4.3 operation confirmed
Accessories: original box
Main specifications: 16 W impedance 8 ohms frequency characteristics 70 to 16,000 Hz 94 dB screw hole diagonal 194 mm φ205 mm x D140 mm 2.0 kg
*Inexpensive due to the damper falling off on one side, sold as is. This is a Fostex 20cm full range unit used in Nagaoka backroad horns D-55, etc. The clear, high-speed sound is an appeal unique to this format. There is a stain on corn paper (Oikawa Tetsuji)
Maintenance information: 2024.4.3 operation confirmed
Accessories: instruction manual, original box
Main specifications: baffle diameter 184 mm sound pressure level 98 dB maximum input 80 W impedance 8 ohms (measured 6.8/6.7) weight 5.7 kg
The disposal price has been reduced. Member discounts are not applicable. 2024/2/18 sales price 34,800 yen It looks like the Wharfedale model number unknown full range. It's very similar to the 12-inch woofer mounted on the W70D. Equipped with Alnico magnets, inverted dome edge. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.2.17 Operation confirmed
Accessories: none
Main specifications: aperture (from outside the edge to outside the edge) 283 mm screw pitch (screw diagonal) 316 mm depth 149 mm measured impedance 10/12 Ω 4.3 kg
The disposal price has been reduced. Member discounts are not applicable. 2022/12/9 sales price 12,000 yen. *Currently sold. 1 bottle only. A 14cm metal cone full range unit introduced as a successor to the Alpair 12M. The impression is that it sounds bright and cheerful. There is a small scratch on the end of the cone (Mizushima Itsuro)
Maintenance information: 2022.12.9 operation confirmed
Accessories: original box, stop screw
Main specifications: 5.4 ohms, 88.1 dB, 39 Hz to 25 kHz, frame diameter 171 mm, depth 80 mm, 1.8 kg
* It has been recooned, and since there are small tears in some parts, it will be sold as is at a low price. The measured impedance was 12.5 ohms. JBL's 38cm cone type full range unit. Unlike modern heavy bass, it can reproduce bright and light low frequencies. It is a unit that can do a variety of sound makeup depending on the driver or tweeter that is sharp and adapts well. There is a slight blur on the burnt corn (Daiki Goto)
Maintenance information: 2024.3.9 operation confirmed
Accessories: none
Main specifications: 38cm cone type full range unit Alnico 12.5 Ω (actual measurement) 103 dB recommended enclosure internal volume 114 to 338 L frequency characteristics 50 to 6,000 Hz screw pitch (diagonal) 370 mm 7 kg
The price has been reduced! 2024/3/2 sales price 10,000 yen*Currently sold. Bright, clear sound. This is an ultra-overdamping unit that is particularly effective with resonant tube speakers such as backload horns. There is a feeling of use such as dullness over time. There are some wrinkles on the corn paper (Yamato Yuki)
Maintenance information: 2024.3.2 operation confirmed
Accessories: none
Main specifications: 10cm full range unit input 15W impedance 8Ω efficiency 93db frequency characteristics FO to 18,000 Hz weight 1.08 kg
The price has been reduced. 2023/8/30 sales price 79,800 yen ※1 bottle only. This is a very rare ALTEC 601A. This unit was produced in the mono era, and reproduces thick, powerful sound quality. Recommended unit for mono enthusiasts (Fujisawa Yukishi)
Maintenance information: 2023.8.30 Operation confirmed
Accessories: network (N-3000E)
Main specifications: Alnico magnet coaxial 2-way impedance 8Ω playback frequency band 30-22kHz efficiency 100db outer diameter 300 ✕ D145 mm weight 6.0 kg
A 20cm full range unit developed as a successor to the current model FE206EN. Three-dimensional sound field expression is achieved while maintaining a bright and intense tone. The sound makes it easier to feel the live performance. There are wrinkles on the center cone paper on one side (there was no problem with the sound output) (Kojima Yosuke)
Accessories: none
Main specifications: 20cm full range unit 8Ω 96dB maximum input 90W diameter 208 x depth 89.3 mm between diagonal screw holes, 220mm, 3.2 kg/book
※1 bottle only. Currently sold. A Pioneer speaker unit using a double voice coil is mounted on the audio daphnia baffle. You can get a mellow, natural sound (Satoshi Yonejima)
Maintenance information: 2024.2.17 sweep test good
Accessories: none
Main specifications: impedance 8 ohms minimum resonance frequency 155 Hz rated frequency range F0 to 15 kHz output sound pressure level 89.5 dB W180 x H185 x D96 mm weight approx. 1 kg
The price has been drastically reduced. 2024/1/25 sales price 29,800 yen. Popular Fotex 10cm full range unit. It makes me feel how thick and stretchy the mid to low range is. This unit was developed for backroads and super swans. There is a slight feeling of use (Kanai Hidetsugu)
Maintenance information: 2024.1.24 sound output confirmed
Accessories: none
Main specifications: impedance 8 ohms playback frequency band FO to 20 kHz output sound pressure level 91 dB maximum input 15 W weight 1.45 kg
This is a 1950's full range unit using a VAC Alnico magnet. A sharp, hard vintage sound. Surprisingly, it's a unit where you can enjoy choosing the sauce. The exterior has dullness, oxidation, and writing on the frame (Satoshi Yonejima)
Maintenance information: 2024.2.1 sweep check OK
Accessories: none
Main specifications: 20 cm full range unit, 5 ohm Alnico magnet diameter 200 x D105 mm, approx. 1 kg
RFT's rare 30cm vintage full range unit is in stock. Double cone with Alnico magnets. You can enjoy a warm, plump vintage sound. The exterior has dullness and small scratches due to aging (Yonejima Satoshi)
Maintenance information: 2024.2.6 sweep test is good
Accessories: No accessories
Main specifications: impedance 4.3 ohms efficiency 99 db frequency characteristics 45 Hz to 12,000 Hz weight 2.8 kg
※1 bottle only. A rare vintage unit has arrived. A full-range speaker from the prestigious German SABA, which features a green cone. It is a unit that produces a unique tone, and a flat baffle is recommended. In combination with a vacuum tube amplifier, organic sound can be obtained. The exterior has metal corrosion, small scratches, and dullness on the back (Satoshi Yonejima)
Maintenance information: 2024.1.26 sweep test good
Accessories: none
Key Specifications: 20cm full range speaker Alnico magnet impedance 5Ω weight 0.8 kg
The disposal price has been reduced. Member discounts are not applicable. 2023/6/21 sales price 40,000 yen*Sound output has been confirmed with a DC12V/10A field power supply (power supply not included. (Please prepare separately) According to the manufacturer, a 12V/30A power supply is recommended. 1 bottle only. 17cm excitation type full range unit from DEER (Royal Industries). The careful design, such as the use of paper-making cones impregnated with special treatment agents and unleaded silver solder, and the careful construction unique to Japan-made, such as handmade production in Japan and total measurement control, makes a good impression. There is some dullness on the exterior (Murakoshi Yoichi)
Maintenance information: 2023.6.9 operation confirmed (12V sweep OK)
Accessories: none
Main specifications: 17cm woofer 50W 8Ω 90d DC12V input 48-12kHz
Maintained! The 12" MONITOR RED American cap is now in stock. The appeal is that it plays not only classical music but also jazz sauce well. The sound quality is solid when starting up, but it is a wonderful unit that also has an elegant sound typical of Tannoy. There is some paint peeling on the exterior. Serial 034798, 043550 (Fujisawa Yukishi)
Maintenance information: 2023.10.30 Maintained (high range side: magnetic circuit overhaul, operation adjustment. Reinforced all parts of the diaphragm. Magnetic coverage coverage cleaning. Screw washer replacement or antioxidant treatment. Low frequency side: magnetic circuit overhaul. Terminal replacement. Packing metal cleaning possible. (Replace packing bracket fastening screws)
Accessories: dedicated network
Key Specifications: 12 inch coaxial 2-way impedance 15Ω resonance frequency 35Hz crossover frequency 1.8kHz maximum input 10W
Scarce! The full range from the British manufacturer Stentorian has arrived. It is said that it was aiming for WE sound, and it is characterized by powerful sound quality. Enjoy the powerful sound that is 10 inches yet boasting 16,000 gauss. As for the exterior, there is some white mold on the back of the corn paper (Yonejima Satoshi)
Maintenance information: 2024.1.21 sweep test is good
Accessories: No accessories
Key Specifications: Alnico Magnet Cloth Cone 3/7.5/15 Ohm Compatible with Various Types 25cm Full Range Unit
※1 bottle only. The frame is cheap because paint, magic marks, etc. are not in good condition. This is a ferrite model, a 20cm cone-shaped full-range speaker unit representing Altec. It is characterized by a light sound with good response. The exterior is dull and dirty on the corn paper. Serial 31537 (Yonejima Satoshi)
Maintenance information: 2023.9.23 sweep test good
Accessories: No accessories
Main specifications: 20cm cone type full range speaker frequency characteristics 70Hz to 11kHz minimum resonance frequency 80Hz impedance 8Ω rated input 12W output sound pressure level 102 dB weight 1.4 kg
※Since it is cheap, it will be handed over as is. This full-range unit uses a lightweight, high-rigidity pure magnesium diaphragm with high vibration damping performance. The range is wide, and the fast sound, such as when the sound starts up, is attractive. Recommended for those who like to make their own speakers. The exterior is dull. (SATO Wataru)
Maintenance information: 2024.1.19 sweep test is good
Accessories: No accessories
Main specifications: 85mm pure magnesium full range unit 8Ω 86.5 dB F0 to 40 kHz total weight 1.16 kg
This is the first time in 21 years that it has arrived as a unit! This is a rare JBL full range unit that uses a sub cone and Lansaloi edge. Unlike the 8T, it uses a plain paper cone with no aquaplast coating, and has a lively sound. The effect of the subcone is enormous, and the high frequencies are stretchy. There is scratch repair on the cone. Serial 6972/6975 (Murakoshi Yoichi)
Maintenance information: 2024.1.6 sound output confirmed
Accessories: none
Main specifications: 8 inch double cone full range 16 ohms (measured 12 ohms/12 ohms) 90 dB Alnico magnet 35 to 15 kHz outer diameter 200 mm depth 98 mm 3.9 kg
The price has been reduced. 2023/10/24 sales price 60,000 yen A standard 30cm Alnico full range unit built into the SP-505J, etc. While the volume of the bass is modest, the response is better than the D130, and the strong sound of extrusion, just like Altech, is attractive. There are wrinkles on the center cap on one side, and there is dirt on the corn paper (Oikawa Tetsuji)
Maintenance information: 2023.10.22 Operation confirmed
Main specifications: 30 cm full range unit, 16 ohms, 98 dB, recommended enclosure volume 56 to 141 liters, diameter: 309 x D102 mm, weight: approx. 4 kg/bottle
The price has been reduced! 2023/12/29 sales price 19,800 yen ※Since it is cheap, it will be handed over as is. Full range unit specially designed for bass reflex cameras with a complete review of the FF series structure The 20 cm type aluminum alloy center cone is effective, and you can enjoy tight bass, firm mids, and gentle treble (Asaine Tomoho)
Maintenance information: 2023.12.29 sound output confirmed
Accessories: original gasket box
Main specifications: 20 cm full range unit impedance 8 ohms playback frequency band F0 to 17 kHz 93 dB screw pitch (diagonal) 220 mm 3.5 kg
※There is no problem with operation, but it is currently sold because it is cheap. 8cm full range unit The warm sound with lots of noise is attractive. Recommended for those who like to make their own creations. The corn paper is yellowed, and there is an overall feeling of use (Daiki Goto)
Maintenance information: 2023.10.11 Operation confirmed
Accessories: none
Main specifications: 8 ohms, 88 db, minimum resonance frequency, 140 Hz, playback frequency band, FO to 30 kHz, maximum input 7 W, 0.36 kg
Disposal prices have been reduced. Member discounts will not be applied. 2023/1/22 sales price 1,000 yen. Technics 12cm squawker equipped with a back cavity. Fixed edge adopted. There is a dent in the center cap (Murakoshi Yoichi)
Maintenance information: 2022.11.1 sound confirmed
Accessories: none
Main specifications: 12 cm squawker, 8 ohm, screw pitch 128 mm (diagonal), outer diameter, 138 mm, depth 100 mm (including back cavity)
*Fostex's 10cm full range unit is currently sold. This unit is ideal for bass reflex enclosures. How about making your own? (TAMURA Eiji)
Maintenance information: 2023.12.14 Sweep check OK
Accessories: original box, instruction manual
Main specifications: impedance 8 ohms, playback frequency f0 to 35 khz, 86 dB, baffle opening dimensions, diameter 93 mm, recommended enclosure, bass reflex type, 645 g
The price has been reduced. 2023/11//28 Sales price 19,800 yen Altec's classic small-caliber cone-shaped full-range speaker unit. Magnets are almost the same size as 20cm caliber ones such as 403A and 409B, and the diameter of the diaphragm and the diameter of the magnet are almost the same. The range is narrow, and it seems to be designed to be voice-oriented rather than for listening to music, so it's suitable for vocals. In addition to dents and dirt on the exterior and center cap, there is dullness and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.11.27 Operation confirmed (sweep, music signal OK)
Accessories: none
Main specifications: 10 cm full range, 8 ohms, minimum resonance frequency 95 Hz, allowable input 10 W, diameter 111 x depth 51 mm, 900 g
The price has been reduced. 2023/11//28 Sales price 19,800 yen Altec's classic small-caliber cone-shaped full-range speaker unit. Magnets are almost the same size as 20cm caliber ones such as 403A and 409B, and the diameter of the diaphragm and the diameter of the magnet are almost the same. The range is narrow, and it seems to be designed to be voice-oriented rather than for listening to music, so it's suitable for vocals. On the exterior, there is a feeling of use, such as there being a bond at the base of the cone, and there is dirt on the center cap that cannot be removed (Kobayashi Hitoshi)
Maintenance information: 2023.11.27 Operation confirmed (sweep, music signal OK)
Accessories: none
Main specifications: 10 cm full range, 8 ohms, minimum resonance frequency 95 Hz, allowable input 10 W, diameter 111 x depth 51 mm, 900 g
Disposal prices have been reduced. Member discounts will not be applied. 2022/7/31 sales price 1,000 yen. ※This item is currently sold. Inexpensive because it is in poor condition. The unit is small, so the low frequencies are a bit unsatisfactory, but the quality in the mid to high frequencies is good. Both have creases and dents on the edges, and there is a slight dent in the dome on one side (Takasaki Atsushi)
Maintenance information: 2022.7.31 sound output confirmed
Accessories: none
Main specifications: 8Ω 10W minimum resonance frequency 200Hz playback frequency band FO to 20kHz output sound pressure level 84dB baffle opening diameter 75mm weight 300g
Disposal prices have been reduced. Member discounts will not be applied. 2023/2/5 sales price 500 yen. ※This item is sold as it is. It seems that only 1 Sony full range unit is a unit for Sony 5.1 channel surround speakers. The exterior is dull and has tape marks (Hiura Katsugu)
Maintenance information: 2023.2.5 sound confirmed
Accessories: none
Main specifications: W83 x H85 x D49 mm (actual measurement), screw pitch (diagonal), 92 mm, weight 553 g
Disposal prices have been reduced. Member discounts will not be applied. 2023/1/23 sales price 2,000 yen. Sale as is. TOSHIBA's full range unit. There is dullness and a feeling of use (Hiura Katsugu)
Maintenance information: 2023.1.23 Operation confirmed
Accessories: none
Main specifications: W120 x H120 mm, screw pitch approx. 220 mm, weight 269 g
1 bottle only East German RFT elliptical full range unit. The previous owner apparently used it as a tweeter. The lightweight cone has excellent responsiveness. Dull and dirt, there are stains on the corn paper (Hiura Katsugu)
Maintenance information: 2023.11.1 sound confirmed
Accessories: none
Main specifications: 4 ohms DC resistance 3.6 ohms
※Since it is inexpensive, it will be handed over as is. A 20 cm full range unit that uses a double cone mechanical 2-way system. The unique square-shaped aluminum die-cast frame is impressive. The range is surprisingly wide, and the strong, quiet sound is appealing. There are wrinkles and creases on the double cone. (MIURA Kimiya)
Maintenance information: 2023.11.21 Operation confirmed
Accessories: English instruction manual, original box
Main specifications: mechanical 2 way 20 cm full range unit 42 Hz to 20 kHz ± 6 dB 8 Ω 97 dB diameter 21 cm baffle opening diameter 17.8 cm depth 8.1 cm weight 1.9 kg
※Since it is inexpensive, it will be handed over as is. This is the 12th speaker unit appendix in Stereo magazine, Onkyo's 10cm full range unit. It makes a particularly pleasant sound in the high frequencies with its unique biomimetics technology. (TAMURA Eiji)
Maintenance Information: 2023.11.19 Sweep Check OK
Accessories: booklet
Main specifications: 10 cm caliber full range unit, iron plate press processing (4 holes), diaphragm, etc. (material) biomimetic diaphragm (long fiber pulp), spiral edge (rubber), phase plug (ABS), baffle opening size 95 mm 0.76 kg
※Since it is inexpensive, it will be handed over as is. 1 bottle only. This is the 12th speaker unit appendix in Stereo magazine, Onkyo's 10cm full range unit. It makes a particularly pleasant sound in the high frequencies with its unique biomimetics technology. (TAMURA Eiji)
Maintenance Information: 2023.11.19 Sweep Check OK
Accessories: booklet
Main specifications: 10 cm caliber full range unit, iron plate press processing (4 holes), diaphragm, etc. (material) biomimetic diaphragm (long fiber pulp), spiral edge (rubber), phase plug (ABS), baffle opening size 95 mm 0.76 kg
It seems to be made by MAGNAVOX, but details such as the model number are unknown, a 30cm full range unit. The exterior has a feeling of use over time such as fading and dullness (Asaina Tomonori)
Maintenance information: 2023.11.6 sound output checked
Accessories: none
Main specifications: screw pitch 295mm (diagonal), weight 1.3 kg (measured value)
Disposal prices have been reduced! (Member discounts are not applicable) 2023/7/11 sales price 49,800 yen ※Since there are conspicuous repair marks on the cones, they are inexpensive. A standard 30 cm Alnico full range unit built into an SP-505J, etc. While the volume of bass is modest, the response is better than the D130, and the sound with strong extrusion, as if it were an Altec, is attractive. The exterior has conspicuous repair marks and stains. Also, the plate on the back of one side is missing. Serial 41599 (Tamura Eiji)
Maintenance Information: 2023.7.11 Sweep Test Good
Accessories: no accessories
Main specifications: 30 cm full range unit, 16 ohms, 98 dB, recommended enclosure volume 56 to 141 liters, diameter 309 x D102 mm, weight approx. 4 kg/bottle
※This item is currently sold. The 610DB is a famous Diamond-Tone machine that is still highly popular today. Their popularity has increased year by year, and those who make their own units are such that there are no strangers. It is a full range that uses Alnico magnets and is very easy to use, with no quirks from low to high frequencies. Depending on how the enclosure is made, it makes a surprising amount of noise. The appearance is beautiful with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.10.29 Operation confirmed
Accessories: instruction manual, original box
Main specifications: Playback frequency characteristics 70 Hz to 20 kHz output sound pressure level 92 dB impedance 8 ohms maximum input 20 W weight 0.92 kg
Adult science magazine separate volume, whole handmade speaker book, appendix only. Instructions are missing. 7cm full range speaker handmade unit made by Fostex. The unit itself can be made by hand. (MIURA Kimiya)
Accessories: original box
Main specifications: 7 cm full range impedance 8 ohms efficiency 85 dB playback frequency band F0 to 30 kHz rated input 6 W
※This item is currently sold. It's a sound with high efficiency and good moods from the good old days, and a dry, thick, and heavily colored sound similar to JBL and ALTEC. The exterior has a slight feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.10.29 Operation confirmed
Accessories: instruction manual, original box, cover
Main Specifications: 8 inch (202mm) full range aluminum die-cast frame 8Ω 97.3dB 30W weight 3.7 kg
The price has been drastically reduced! 2023/9/21 sales price 35,000 yen*The frame is in poor condition, such as paint and magic marks, etc., so it's cheap. This is Altec's representative 20cm cone-shaped full-range speaker unit, a ferrite model. The response is good, and the light sound is pleasant. The exterior has paint stains and magic marks. Also, the positive and negative sides of the terminals are reversed on the left and right. (TAMURA Eiji)
Maintenance Information: 2023.9.21 Sweep Test Good
Accessories: no accessories
Main specifications: 20 cm cone type full range speaker frequency characteristics 70 Hz to 11 kHz minimum resonance frequency 80 Hz impedance 8 ohms rated input 12 W output sound pressure level 102 dB/W/m weight 1.4 kg
There is no problem with operation, but since it is inexpensive, it is handed over as is. An ALTEC sound with dry mid-range tension. The protruding vocals are truly amazing. The exterior is generally beautiful
Maintenance information: 2023.10.23 Operation confirmed
Accessories: instruction manual, original box
Main specifications: diameter 126 x D54 mm impedance 8 ohms frequency characteristics 150 Hz to 14,000 Hz 95 dB
This is a rare unit in stock alone. A 13cm cone-shaped scoker unit used in the company's 4313, etc. It is somewhat dull, but it can be said that the degree is quite good (Fujisawa Yukishi)
Maintenance information: 2023.10.11 Operation confirmed
Accessories: none
Main specifications: 13 cm cone type impedance 8 ohms
Comes with original box. Pioneer's 10cm full range unit. An item that is rarely seen and has a low distribution volume. I recommend it to those who like to make their own. I'm handing it over as it is because it's cheap (Oikawa Tetsuji)
Maintenance information: 2023.9.28 Operation confirmed
Accessories: original box, gasket, screws
Main Specifications: Single Cone, Full Range, 10cm, 80-2000Hz, 8Ω, 30W, 90dB
*Currently sold. This is a 10 cm full range unit produced by Fostex in a limited edition of 1,500 units. It features an energetic sound like the orange frame color. You can feel the goodness of a compact full range with the tension in the mid-range and the ease with which it stands up quickly. There are solder marks on the terminal (Oikawa Tetsuji)
Maintenance information: 2023.9.28 Operation confirmed
Accessories: original box, gasket, screws
Main specifications: 8Ω 20 to 40 kHz 90 dB W106 x H47 x D106 mm approx. 640 g