How much does this cost to the nearest dollar?

Rockford Fosgate T600-4 Power 600 Watt Amplifier
The Power T600-4 amplifier offers high fidelity in a full-range configuration with 600 Watts of POWER Versatile design can be used in either 2 or 4 channel configurations (RMS Power Output 100 Watts x 4 @ 4-Ohm or 150 Watts x 4 @ 2-Ohm or 300 Watts x 2 @ 4-Ohm Bridged or 2-Ohm x 2 Bridged Stable) Our Class A/B amplifier offers the perfect balance of power output and compact design (2.14” x 8.14” x required for high performance audio systems. Featuring differential RCA inputs and RC pass-thru, variable Punch EQ with +18

Price is $600.00

Price: $599.99