The new LT series from Power Acoustik sets new standard for cosmetics and performance. The unique die cast aluminum heatsink sports a novel diamond cut finish with powder-coated insets for aggressive looks and excellent cooling properties. Plus, the end panels and top mounted controls are backlit with a cool blue glow for the ultimate finishing touch. Built-in low-pass and high-pass crossovers with variable frequency control eliminates the need for an external crossover and makes the LT620/2 ideal for driving subwoofers or full-range speakers with clean Power Acoustik power. Other features include full Mosfet PWM power supply, variable bass boost, variable subsonic filter to help protect your subs, and gold-plated input terminals.