Refreshed and maintained in 2021. It's the long-awaited blue baffle 4344. The vividness of the performance is expressed dynamically with a full mid-low range that sets it apart from the tall boy type, and a powerful sound image. It shows an unrivaled compatibility with jazz from the 70s and 90s, soul, rock, etc., even now. There are repair marks on the exterior (Hiura Katsuji)
Maintenance information: 2021.5.1 maintained (exterior repair/polishing/oil finish front and rear baffle coating saran net replacement saran plate repair diffuser cleaning woofer maintenance mid maintenance driver maintenance (magnetic circuit gap cleaning/center adjustment sound absorbing material replacement screw replacement various cleaning)
Tweeter maintenance (magnetic circuit gap cleaning/center adjustment, various cleaning) unit detachable terminal rust removal, acid washing, insulation bush & mounting screws replacement, internal connection terminal replacement from faston to round terminal, ATT brand new replacement, INT/EXT switching SW contact sulfide removal, polishing, and cleaning. Frequency characteristic measurement check (~ 42 kHz) is performed, and only 1 μF for UH (tweeter) is exchanged, input/output waveform and balance confirmation sound output check)
Accessories: saran net diffuser
Main specifications: 4-way 4-speaker bass reflex unit 2235H 2122H 2421B 2405H frequency band 35 Hz to 20 kHz 8 ohms sound pressure level 93 dB W635 x H1,051 x D435 mm 96 kg