How do I find a suitable amplifier ?

Hello can help me a few days ago, I bought a Hifonics ATX 12 BP: ATX12BP! • 12的 (30 cm) Single bandpass system • ATX12 subwoofer with 64 mm oscillating coil • 1000/2000 watts, impedance 4 ohms • Side panels with PFTG logo • White LED interior lighting • Engraved HF logo on plexiglass • Edler HiFonics logo stick on top • Dimensions: 600 x 380 x 320/480 mm And now I’m looking for a suitable amplifier also one of Hifonics. I’ve picked out 2 times. please say if one of the two fits. Or say a better one. Sage jezz thanks already. Hifonics Zeus ZXi9000 MKII 2-channel Class A/B Analog Amplifier 2 x 300/450 Watt RMS @ 4/2 Ohm 2 x 600/900 Watt MAX @ 4/2 Ohm • Class A/B Analog Technology • High pass filter 10Hz-1.2 kHz • Low pass filter 30 Hz – 150 Hz • Bass EQ 0-18 dB @ 45 Hz • Band pass function • Mono flashable Hifonics ZXi 9002 2-CH Class A/B Analog Amplifier 2 x 300/450 Watt RMS @ 4/2 Ohm High pass filter 10 Hz – 1.2 kHz • Low pass older 30 – 150 Hz • Bass EQ 0 – 18 dB @ 45 Hz • Bandpass mode • Mono flashable • Input selector