Features:1) Size: 64.2 x 64.2mm2) Power: 5W3) Frequency: 3,000 - 20,000Hz4) Impedance: 8 ohms5) SPL: 90dB

Features:1) Size: 41mm2) Height: 15mm3) Magnet diameter: 20mm4) Impedance: 16 plusmn; 2.4 ohms5) Rated power: 5W6) Max. power: 10W7) Sensitivity: 86 plusmn; 3dB8) Freq. response: 0 - 20,000Hz

Features:1) Size: 108mm2) Height: 41+/-0.5mm3) Magnet diameter: 50+/-1mm4) Impedance: 8Ohms5) Frequency: f0 - 20,000Hz6) Input power: 15W7) Sensitivity: 90±3dB

Features:1) YDT615G-031. Size: 154 x 57mm2. Height: 43mm3. Magnet size: 35mm4. Rated power: 15W5. Ma. power: 22W6. Frequency: 90+/-18Hz~10K7. Impedance: 4/6/8/12/16ohms8. SPL: 84+/-2dB/m/W2) YD70G-071

Features:1) YDT615G-031. Size: 154 x 57mm2. Height: 43mm3. Magnet size: 35mm4. Rated power: 15W5. Ma. power: 22W6. Frequency: 90+/-18Hz~10K7. Impedance: 4/6/8/12/16ohms8. SPL: 84+/-2dB/m/W2) YD70G-071

Features:1) Impedance: 4 OHM2) Noise: 25W3) Max power: 50W4) Sensitivity: 90dB

Features:1) Impedance: 4 OHM2) Noise: 15W3) Max power: 30W4) Sensitivity: 88dB

Features:1) Impedance: 4 / 8 / 16 ohms2) Power: 8W3) Frequency: 120Hz -15,000Hz

Features:1) Impedance: 4 / 8 / 16 ohms2) Power: 8W3) Frequency: 120Hz -15,000Hz