Maintained! A large backload speaker system using a JBL unit by Sansui. The individual this time is a D130+175DHL+075, and the network is a 3-way network equipped with the N1200 and N7000. You can enjoy the JBL sound of the royal road on the backroad with a quaint Sansui box. The appearance is beautifully finished due to maintenance. Serial 53070290 53070304 (Yuki Yamato)
Maintenance information: 2022.4.9 operation confirmed
2022.1.30 Maintained (Exterior Repair/Polishing/Oil Finishing Hakama New Creation Front and Rear Baffle Repair/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 screw replacement. Rotary SW replacement for ATT (SW type) Frequency characteristic measurement check (~ approx. 42 kHz) is performed and the original capacitor is continued to be used for good results. (I/O waveform and balance check, sound output check)
N7000 (terminal rust removal (pickling) treatment, cleaning, insulation bushing & mounting screw replacement. ATT new replacement Replace capacitor * Some capacitors before replacement are difficult to remove, so they remain inside. Frequency characteristic measurement check (~ approx. 42 kHz) is performed and the original capacitor is continued to be used for good results. (I/O waveform and balance check, sound output check) Unit detachment/new wiring)
Accessories: Saran net
Main specifications: 3-way, 3-speaker, back-load horn system, floor type unit: 38cm cone type D130/mid-range driver & horn 175DLH tweeter 075:8Ω horn type Tweeter Unit Alnico Magnet Crossover Frequency 2,500Hz Allowable Input 20W Network: N1200 Allowable Input: 50W Impedance: 8Ω Output Sound Pressure Level: 100dB W614 × H1,034 × D520mm