Hifonics bxi2006d stays in protection

Generally thats a sign of a shorted output device, either a bipolar transistor or mosfet. Also ground faults can trigger a protect light.

The diagnostic light, for this particular model, means that there is either a short circuit on the loudspeaker leads or there is an internal amplifier fault that is causing a DC offset. In order to determine which, disconnect all RCA and speaker leads while keeping the +12 volt, power ground and remote leads connected. Now turn the amplifier back on, and if the diagnostic LED lights up, the amp has an internal fault. If not, plug the RCA cables back in and reset the amp. If it goes into diagnostic now, the problem is with the input (either bad cables or a faulty head unit). If the amp is fine with the RCA cables plugged in, repeat the process with the speaker cables (one at a time). When you plug in the faulty speaker wire it will put the amp into diagnostic mode.

you should not have any spark from your ground...you may want check and make sure your ground is properly installed. Try wiring the amp without the cap and see if that works.

sounds like the amp is going into protection mode. maybe a sub is shorted (blown). Or, the only other possibility is the mosfet transistors on the inside of the amp are blown.

Hello beaugarcia26,

Unless the amp itself is defective, there's a short or ground somewhere.

First disconnect the speaker wires and RCA (or high level) inputs, leaving just ground, remote turn-on and power leads connected. Then see if the amp powers up normally. If it doesn't check the ground with a multimeter and make sure it is good. If the amp powers up normally, check the speaker, speaker wires and inputs for shorts or grounds.

Hope this helps.

Either bad RCA's, Bad RCA ground from the radio, or blown suibs.

Disconnect the speakers. Measure their resistance from black to red with an ohmmeter/DMM to make sure that a shorted voice coil did not cause the shutdown

100 watts RMS x 2 at 4 ohms

200 watts RMS x 2 at 2 ohms

400 watts RMS x 1 at 4 ohms in bridged mode

stereo or bridged mono output

4-ohm stable in bridged mode

Tri-Way capable

requires 8-gauge power and ground leads — wiring and hardware not included with amplifier

50-250 Hz high-pass/low-pass (12 dB/octave) crossovers

wired remote included for fingertip control of Punch Bass (0-18 dB boost at 45 Hz)

MOSFET power supply and output devices

MEHSA mounting technology increases the heat transfer from the MOSFET output devices to the heat sink, for higher power output, lower operating temperatures, and greater reliability

TOPAZ — noise-killing differential inputs that eliminate 80% of ground loop noise

Trans•ana circuitry keeps preamp voltages low and signal paths simple for outstanding audio quality

NOMAD — advanced protection circuitry for "intelligent" shutdown protection

speaker- and preamp-level inputs

11-1/8"W x 2-3/8"H x 9-7/8"D

Wire your sub in bridged mode (4 ohm mono)
+ to + on amplifier
- to - on amplifier
(using bridging terminals)

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Sounds like its going into protect mode-try disconnecting the speakers from the amp entirely and turn the system on if it stays lit up- then ya know its the speakers (one of them at least) thats making your amp shut itself down. If thats the case look into replacing the speaker thats causing the problem.Also make sure that you have sufficient wiring to your amp - at least 8 gauge if you can. check all terminals /power/ground make sure everythings connected tight and not grounding out anywhere