Speaker system with 2 French Suprabox field type full range 215EX units and 40cm woofers 400-2000EXC. It combines a sense of speed that makes it impossible to return to a permanent magnet, and an audible response. In addition to small holes scattered on the exterior and top plate, a feeling of use such as dullness, abrasions, and scratches can be seen (Kobayashi Hitoshi)
Maintenance information: 2024.4.26 sound output confirmed
Accessories: dedicated power supply unit, connection cable, power cable
Key Specifications: 2 way 3 speakers W600 x H1200 x D270 mm
The best model in the BAT series. Cut the area below 15 kHz that can be heard by humans as much as possible, and cut the coverage with the main speaker. It has a natural sense of spaciousness and a firm, strong axle, and a light impression that is easy to remove. Thick wooden cabinets, brass horns, and brass inverted conical spikes are used to ensure rigidity and beautiful form. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.4.26 Operation confirmed
Accessories: original box
Main specifications: Drive system/bimorph polymer piezoelectric hail type drive (TAT drive) maximum rating/100V (however, test signals at 20kHz or higher are up to 20V) protection circuit operates on excessive input (returns to normal after a few minutes of turning off the power) impedance/infinity ~ 140Ω to 28Ω (DC ~ 20kHz to 100kHz) playback frequency band/ 18 kHz to 150 kHz or more (18 kHz or less with a hail structure and 0.1 μF capacitor (It has been cut steeply) Maximum output sound pressure/100dB/W/m, 5-step switching W110 × H70 × D100 mm 720g
Maintained by the manufacturer! It is the origin of Sun Valley and is the most popular 845 single power amplifier kit model. Sister level 211 can also be used. Please enjoy the original appeal of hand-wired tube amplifiers (Murakoshi Yoichi)
Maintenance information: 2024.4.26 manufacturer maintenance (vacuum tube replacement L/R gain adjustment, high pressure wiring glass tube processing, solder part check, re-soldering, wiring routing correction, screw fastening confirmation, tightening, output, gain noise, etc.)
Accessories: instruction manual, power cord
Main specifications: 845/211 single 16W+16W or more (211 is 7.5W+7.5W or more) impedance 8Ω W410 x H240 x D275 mm 15 kg