How much does this cost to the nearest dollar?

Soundavo Stereo Amplifier for Home Audio, Residential and Commercial Installation 450W bridgeable
High Efficient Power Output Class D amplifier providing 2 x 150 watts RMS into 8 ohm loads or 2 x 225 watts RMS into 4-ohm loads, can be also bridgeable output provides 450 watts into a single 8-ohm load, which can drivers your large size floor stand speakers with big sound without any problem. Binging Post Speaker Connector Allows you to easy connect and bi-wiring most of modern speakers that come with the high frequency and low frequency pairs of binding posts. Versatile Configuration Options Can be used as a stand-alone home stereo power amplifier, or work with any home theater receiver, multi-room audio system, WiFi audio streamer device, Amazon

Price is $400.00
Price: $399.99