Check the listing for details. Admark K420 Class D Professional Power Amplifier One Space 2000 Watts x 4 @ 8Ω. Condition: New. Listed at 1349.00 USD. For One New ! Admark K420 Class-D Rack Mount 4 Channel Power Amplifier The D-Series Power Amplifiers are employing the mature and efficient D circuit design,using highquality and reliable components.Compact and light weight in a 1U size rack space.Sexy and novel appearance.Intelligent soft boot,sophisticated short-circuit,over-load,over-heat protection. Compact steel frame,shockproof,compressive resistance.With built-in low frequency exciter. Be able to work in stereo,parallel and bridge mode. TECHNICAL PARAMETER OF K420 AMPLIFIER: Please Contact the store for further Info. FREE SHIPPING ONLY In Lower 48 States. Most Orders Placed Before 2PM and Paid thru' PayPal Are Shipped The Same Day; Monday to Friday.PLEASE NOTE: ITEMS SHIPPED OUTSIDE OF THE CONTINENTAL U.S. (ALASKA, HAWAII, & PUERTO RICO) WILL BE SUBJECT TO AN ADDITIONAL SHIPPING SURCHARGE OF $20 FOR EACH ITEM. THE AMOUNT WILL BE INVOICED TO YOU VIA PAYPAL AFTER PURCHASE. IF YOU HAVE ANY OTHER QUESTIONS, PLEASE LET US KNOW.POR FAVOR TOME EN CUENTA: ARTÍCULOS ENVIADOS FUERA DE LOS ESTATES UNIDOS CONTINENTALES (ALASKA, HAWAII Y PUERTO RICO) ESTARÁN SUJETOS A UN RECARGO DE ENVÍO ADICIONAL DE $ 20 POR CADA ARTÍCULO. LA CANTIDAD SE LE FACTURARÁ A TRAVÉS DE PAYPAL DESPUÉS DE LA COMPRA. SI TIENE ALGUNA OTRA PREGUNTA, POR FAVOR DEJANOS SABER.