Maintained! A large backload speaker system using JBL units by Sansui. This time, the individual is D130+175DHL+075, and the network is 3way with N1200 and N7000. You can enjoy the classic JBL sound on the back road in a quaint Sansui box. The exterior is neatly finished by maintenance (Oikawa Tetsuji)
Maintenance information: 2022.1.30 Maintained (exterior repair/polishing/oil finishing/baffle repair before and after new hakama creation/hakama, painting
Lattice repair, polishing, painting, back fabric cleaning/reattaching Woofer maintenance (unit cleaning, terminal contact cleaning) Driver maintenance (magnetic circuit rust removal, gap cleaning center Adjustment, sound-absorbing material replacement, terminal contact cleaning) Tweeter maintenance (horn disassembly/polishing, magnetic circuit rust removal/gap cleaning, terminal contact cleaning) network maintenance N1200 ( Terminal rust removal (pickling) treatment, cleaning, insulation bushing & mounting screws replacement. Rotary SW replacement for ATT (SW type). A frequency characteristic measurement check (~ 42 kHz) is performed, and the original capacitor is continuously used for good results. (Input/output waveform and balance check, sound output check)
N7000 (terminal rust removal (pickling) treatment, cleaning, insulation bushing & mounting screw replacement. ATT Brand New Replacement Replacing capacitors. * Some capacitors before replacement are left inside because they are difficult to remove. A frequency characteristic measurement check (~ 42 kHz) is performed, and the original capacitor is continuously used for good results. (Input/output waveform and balance check, sound output check) Unit detachment/new wiring)
Accessories: none
Main specifications: 2-way, 2-speaker, backload horn type, floor type Unit: 38cm cone type D130/medium range driver and horn 175dLH Network: N1200 acceptable Input: 50W Impedance: 8Ω Output sound pressure level: 100dB W614 × H1,034 × D520mm