Wood enclosure with fabric grille Features: T-301: 1) Rated power: 10W 2) Line voltage: 100V 3) Sensitivity: 91?dB 4) Impedance: 1K ohms 5) Frequency response: 130 - 15kHz 6) Dimensions: 320 x 160 x 115mm 7) Net Weight: 2.2kg T-302: 1) Rated power: 20W 2) Line voltage: 100V 3) Sensitivity: 92?dB 4) Impedance: 510 ohms 5) Frequency response: 130Hz - 15kHz 6) Dimensions: 420 x 160 x 115mm 7) Net weight: 3.0kg T-303: 1) Rated power: 30W 2) Line voltage: 100V 3) Sensitivity: 92?dB 4) Impedance: 350 ohms 5) Frequency response: 130Hz - 15kHz 6) Dimensions: 520 x 160 x 115mm 7) Net weight: 4.3kg T-304: 1) Rated power: 40W 2) Line voltage: 100V 3) Sensitivity: 90?dB 4) Impedance: 280 ohms 5) Frequency response: 130Hz - 15kHz 6) Dimensions: 620 x 160 x 115mm 7) Net weight: 4.9kg