Good Quality Hifi Audio Stereo Amplifier Product Description Technical Data speaker unit: 1×1 inch tweeter,1×4 inch mid-bass freqency: 100-20kHz input impedance 8Ω output power10-200W size 188×124×138mm3 weight 1.9kg Contact us Company Information Packaging & Shipping FAQ FAQ Q1:How's the delivery time? A: Usually it will take about 30-35 days for production. Q2: Can you produce according to customers'design? A: Sure, we are professional professional ktv audio manufacturer,OEM &ODM are welcome. Q3: What's the payment term? A: We accept T/T, 30% deposit and 70% balance before shipping. Q4: Tell me the standard of package? A: For the small capacity, inside filling the foams, outside using carton, but for big capacity, we should use strong wooden case for protection.