I have a punch p400-1 it keeps going into protect mode and pulling the sub back how do i fix this?

Check ohm reading of the speaker. Should read close to whatever the spec is (2 ohm, 4 ohm, 8 ohm) if you have multiple subs and no ohm meter then try connecting one at a time to the amp. Either you have a shorted sub, ohms are too low for the amp or you have an (least likely) amp problem tha y only shows up under a load.

You may have a woofer with an impedance that is not correct for your amplifier, or possibly a damaged woofer. Try hooking up a different sub in your car without moving your amp, see if it does the same thing. If it does your amp has an internal issue. If it doesn't you know it's the sub.

That amplifier is only rated at 150 watts at 4 ohms, or 300 watts at 2 ohms. Not a very strong amp to run 2 kicker comps. My guess is you have the subs wired wrong for your application. There are 2 types of subs, one is a dual 4 ohm, and one is a dual 2 ohm. Most people bridge these coils together and that cuts your ohms in half. For example. Lets say you have the 10cvr104 subs. Thats the dual 4 ohm sub. You wire the coils together in parallel, now its a 2 ohm sub. You have 2 of these subs running off of your amp, if they are hooked up in parallel, now you have a 1 ohm load, out of the amplifiers normal operation. Your amplifiers internals heat up really quick and there is a thermal overload, putting your amplifier into circuit protection mode. My suggestion for wiring your subs is as follows: for each speaker, wire the coils together like this- positive coil1 to negative coil 2 and negative coil 1 to positive coil 2. That is called running in series, and doubles your ohm load. Next, we need to wire the speakers together properly to hook up to your amplifier. For this, since the coils are hooked together, you only need to use one set of terminals from each sub. And take the positive from sub 1 and hook it to positive of amp. Take negative sub 1 and hook it to positive of sub 2. Take negative of sub 2 and hook it to negative of amp.

I have exactly the same problem, try a different speaker wire from your sub terminal to your amp terminal, if no luck you may have a loose connection on the wires on your sub, due to vibrations etc they can sometimes come loose, but very rare. worth checking though. 1 loose connection can make the amp go into protection mode. If all of these are fine, start from the beginning, ( I have tried this and i think its my speaker wire shorted out) 1st dissconnect all wires from amp. Then connect ground first, then your live. then power up amp, it it works andd not in protect mode your earth and live are fine, then connect your remote, then test, then speaker wire , then test, that way you can rule out bad connections and find any fault.

Hi unbridge the subs and run them sterio your overloading the amp and its going into protection mode. if you have anymore questions about car audio feel free to ask me...

if you have both amps connected to the same power wire this will happen...run another power wire to the alpine and this should solve the problem.

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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My kicker amp zx1500.1 keep going in protection mode I unhooked the sub speak wires and put the ACR cords back in and it didn't go in protection mode what next

It's very likely that the output transistors have failed in the amp. They will need to be replaced.

try with one sub at a time to see if bad sub