Featuring an advanced design concept, special appearance and innovative mold with a strong waterproof design, this amplifier shell undergoes a precise production process. The die arrangement is made in-house by our engineers, and only high-grade aluminum alloy material is chosen. After a die-cast, color deactivation, and chromate treatment polish, this shell is coated with an anti-corrosive and anti-static surface treatment with good salt mist-proof and weather resistance properties. The shell groove is embedded with metal gauze screen to prevent radiation disturbance and has good screening and anti-leakage performance. Finally, this shell is sealed with a silicon rubber strip and can resist temperatures as high as 200°C and as low as -80°C without distortion. The sealant must have no leakage within 1 minute under 0.07MPa of air pressure. Dimensions: 227 x 133 x 85mm