Depends on whether you have the 2 or the 4 ohm version.
For a pair of the 2 ohm CVR's, a 2 ohm stable mono amp is the way to go, a fine example is the kicker zx750.1 (very popular for a pair of CVR's)
If you have a pair of the 4 ohms CVR's, either a 1 ohm stable mono amp will work, or a big 2 channel amp.
You want an amp that makes somewhere near 800 watts RMS.
For the 2 ohm pair, the amp should read something like "800 watts RMS 1 x @ 2 ohms mono
For the 4 ohm pair, a mono amp that reads
800 watts RMS x 1 @ 1 ohm mono
OR, a big 2 channel amp, that reads like this
800 watts RMS @ 4 ohms mono (bridged). Bridging means combining 2 channels into 1 mono channel.