A vacuum tube premain amplifier from Oto Kobo, a manufacturer in Kanagawa prefecture. Deluxe type that has been changed to a bass boost function and a gold-plated SP terminal. I tried playing it at the store, but it sounds more than the size, and there is a sense of volume in the low frequency without bass boost, and the impression is that the resolution is exceptionally high compared to old vacuum tube amplifiers. It is also recommended for getting started with ball amplifiers and sub units. You can also enjoy the beautiful vacuum tube lighting function by appearance (Shota Sasaki)
Maintenance information: 2022.8.12 Sound output operation confirmed
Accessories: manual, power cable
Main specifications: Super triode connection 3W+3W (8Ω) Headphone output 50mW+50mW (at 60Ω load) W180 × H148 × D265mm 5.5 kg
The price has been reduced. 2022 9/18 sales price 140,000 yen A vertical 38cm woofer enclosure equipped with Great Plains Audio (ALTEC) 515-8HHP. The sides are 40mm thick, and they are quite sturdy and heavy. Please note that the screw pitch is a slightly special 380 mm size. There are scratches and small scratches on the exterior. Both saran net dowels are broken in one place (Takasaki Atsushi)
Accessories: saran net
Main specifications: Baffle opening diameter 355 mm from screw to screw 380 mm (diagonal) W680 × H900 × D556 mm (actual measurement)
First arrival! 2" wood horn JBL and TAD 2-inch drivers can be used. How about it together with the TCX-1500AL enclosure which is in stock at the same time. There are small scratches and paint peeling (Oikawa Tetsuji)
Accessories: none
Main specifications: W520 x H235 x D380 mm 8.4 kg
The price has been drastically reduced. 2023/1/19 sales price 398,000 yen with driver stand! A 2-inch special horn machined out of wood by Tematsu Sound Works. The natural sound that stretches smoothly even on high frequencies with good sound that can only be obtained with this horn is amazing. Compatible with JBL 375/376/2440/2441/2450/2446, TAD TD-4001 TD-4003 (Fujisawa Yukishi)
Accessories: self-made stand
Main specifications: SH maple urethane colored paint finish, 2 inch driver unit, directivity 70 degrees horizontal x 50 degrees vertical, recommended crossover 500 Hz or more, measured external dimensions W650 x H290 x D600 mm, measured weight 25 kg
The price has been reduced. 2024.1.8 sales price 130,000 yen First arrival! Rugged 38cm enclosure with a 30mm thickness. How about together with the Woodhorn Hi-α310X which is in stock at the same time? There are minor scratches, bumps, etc. ※Shipping costs are estimated separately (Oikawa Tetsuji)
Main specifications: W540 x H800 x D470 mm 42 kg (actual measurement)
Great Plains Audio (ALTEC) 515-8HHP was installed. An enclosure for a mane pine 38cm woofer. The side has a thickness of 40 mm, and it is quite robust. A self-made trolley is included. Please note that the screw pitch is a slightly special 380mm size. The appearance has scratches and small scratches. Both saran net dowels are broken in one place. * Shipping costs will be estimated separately (Satoshi Yonejima)
Accessories: self-made trolley
Main specifications: Baffle opening diameter 355mm from screw to screw 380mm (diagonal) W680 × H900 × D556mm (actual measurement)
Disposal prices have been reduced. Member prices are not applicable. 2023/1/19 sales price 298,000 yen The double woofer enclosure for JBL 38cm made by Tatematsu Sound is in stock. Four JBL 2235Hs were mounted. The sturdy construction suppresses unnecessary box sounds and plays tight low frequencies. It's good to make a new unit powerful, and it's also good to play a vintage unit in a relaxed manner; as expected, it's an enclosure called Tatematsu Onko (Fujisawa Koshi)
Accessories: unit mounting screws
Main specifications: plate thickness front 30 mm back 25 mm W1080 x H800 x D530 mm weight 78 kg (actual measurement)
The price has been drastically reduced. 2022/5/3 selling price 150,000 yen Great Plains Audio (ALTEC) 515-8HHP was installed. An enclosure for a mane pine 38cm woofer. The side has a thickness of 40 mm, and it is quite robust. A self-made trolley is included. There are small scratches. One saran net dowel is broken. * Shipping costs will be estimated separately (Oikawa Tetsuji)
Accessories: self-made trolley
Main specifications: Baffle opening diameter 355mm from screw to screw 370mm (diagonal) W680 × H900 × D556mm (actual measurement)
A custom-made enclosure made by Tatematsu Onko, a long-established box-making company. JBL's 4340/4341 is slightly smaller, and SANSUI's EC-146 is one size smaller. The good size, which is about halfway between 4343 and 4333, is attractive. It is made in a 3-way configuration, and can be fitted with 2405 and 075 tweeters, H91 straight horns, and 38cn woofers. The whole thing is dull and there is a feeling of use (Murakoshi Yoichi)
Accessories: saran net, ducts
Main specifications: size W586 x D455 (510 when net attached) x H900 mm weight approx. 45 kg/1 bottle
38cm woofer enclosure for Tatematsu Sound. The previous owner had a TAD TL-1601B installed. The thick board thickness typical of the company can be expected for low frequency reproduction with a strong sense of stability. Large lines and other small wounds are scattered on the side (Murakoshi Yoichi)
Main specifications: front baffle plate with saran net, thickness 24 mm, top and bottom side plate thickness 37 mm, W840 x H692 x D545 mm
Step-up transformer with “WESTERN ELECTRIC 211A FILTER” notation and unknown details. The audio-pressure-pressure ratio seems to be high. I was able to enjoy the powerful, tight, and hot sound during the DL-103 audition. Direct ground and terminals are attached (Fujisawa Yukishi)
Maintenance Information: 2023.8.13 Operation confirmed
Accessories: none
Main specifications: W86 x H131 x D145 mm 2.1 kg (actual measurement)
A boost transformer with “WESTERN ELECTRIC 211A FILTER” notation, details unknown. The audible elevation pressure ratio seems to be high. When I auditioned with the DL-103, I was able to enjoy the powerful, tight, and hot sound. Directly attached ground and terminals are attached. The exterior has paint peeling and unevenness. (TAMURA Eiji)
Maintenance information: 2023.8.31 Operation confirmed
Accessories: none
Main specifications: W86 x H131 x D145 mm 2.1 kg (actual measurement)