Exterior repairs, units and attenuators have been refreshed! Black specification of JBL's masterpiece monitor speaker 4312A. It has flat characteristics like a monitor, but you can feel the push and sharpness typical of JBL throughout, and the sense of dynamism in the low frequencies in particular is a JBL sound. Coupled with a tough design, it's a perfect middle speaker for jazz and rock (Kojima Yosuke)
Maintenance information: 2026.2.27 exterior, unit maintained (exterior repair, cleaning saran net newly created unit maintenance: woofer cone paper coating, resonance area repair, mid cone paper coating, tweeter grill dent repair, ATT cleaned)
Accessories: none
Main specifications: 3-way 3-speaker bass reflex type 8 ohm 93 dB crossover 1.1 k/4.2 kHz playback frequency band 45 to 20,000 Hz W362 x H597 x D298 mm weight 20 kg/book