YDA78M40-8F10

RYD YDA78M40-8F10 is a 78×78×40mm square loudspeaker featuring a φ18.9mm aluminum-bobbin voice coil and 60×32×10mm ferrite magnet, rated 10W (15W maximum). Specifications: 8Ω impedance, 120Hz resonance, Fo~20kHz response and sensitivity 84±3dB at 1W/0.5m. The aluminum bobbin improves heat dissipation from the voice coil, supporting stable performance during long continuous playback — a benefit for automotive audio, industrial PA and smart speakers running for hours. Manufactured under the RYD ISO9001 quality system with RoHS compliant materials. Customization available: sensitivity tuning, impedance, connection style and waterproof or dustproof options; new designs can be developed for volume programs. Contact RYD for duty-cycle matching.