amp keeps going into protect mode

heres some of the specs on the subs they are in a sealed box for 12's that i got at a auto sound shop

 

Specs:

General-Subwoofers

• Diaphragm Material : Kevlar Reinforced Pulp
• Magnetic Weight : 89.4oz.
• Mounting Depth (top mount) : 178mm (7”)
• Mounting Diameter (top mount) : 275mm (10-7/8”)
• Recommended Box Types : Sealed/Vented/Bandpass
• Recommended Sealed Box Volume : 0.7 – 1.0 cu. ft.
• Spider Material : Nomex
• Voice Coil Diameter : 50mm

Power Handling

• Power Handling Capacity (Peak) : 1000W
• Power Handling Capacity (RMS) : 300W

Thiel Small Parameters

• Coil Height (Hvc) : 37.74mm
• Cone Area (Sd) : 467.59 sq. cm
• D.C.Coil Resistance (Re) : 3.6 ohm + 3.6 ohm
• Electrical Q (Qes) : 0.45
• Equivalent Suspension Stiffness (Vas) : 58 liters(2.04cu.ft.)
• Free Air Resonance (Fs) : 28Hz
• Frequency Response : 24Hz - 1kHz
• Gap Height (Hag) : 10mm
• Impedance (Nominal) : 4 ohm + 4 ohm
• Inductance (Le) : 3.85mH at 1kHz (1.34mH at 20kHz)
• Linear Excursion (X linear) : 13.87mm
• Maximum Excursion (X peak) : 27.7mm
• Mechanical Excursion (Peak-to-Peak) : 55mm
• Mechanical Q (Qms) : 8.31
• Sensitivity : 87 dB/W/M
• Total Loudspeaker Q (Qts) : 0.43

here are the specs for the amp:

4 CH. 1400 W/Max

1400 Watts Stereo Amplifier

Max. Power Output: 350W x 4Ch. (@ 2ohm)Bridged Mono: 290W x 2Ch. (@ 4ohm)Variable High Pass Filter (50Hz - 1KHz)Tri-Method Speaker Hook Up CapabilityMulti Channel FunctionBass BoostVariable Low Pass Filter (30Hz - 250Hz)Frequency Response: 15Hz - 30KHz2-8 ohm Load CapabilityLow & High Level InputVariable Gain ControlGold Plated RCA & Speaker TerminalsPower-On LED IndicatorChannel Separation: Better Than 55dBSignal to Noise Ratio: Better Than 80dB