YDA66M31-5P4

RYD YDA66M31-5P4 is a 66×66×31mm square full-range loudspeaker rated 5W, built for automotive audio and industrial equipment. It features 4Ω impedance, 150Hz resonance, Fo~20kHz response and 88±3dB sensitivity at 1m/1W, with operation verified from -40°C to +85°C. Compared with 8Ω siblings, the 4Ω version suits amplifier stages designed for higher current drive, and the 150Hz resonance provides solid mid-bass for voice and music in cabins and control rooms. Manufactured under the RYD ISO9001 quality system with RoHS compliant materials. Customization available: sensitivity tuning, impedance, connection options, and waterproof or dustproof grade; new designs can be developed for volume programs. Contact RYD for amplifier matching advice.