I have an alpine pdx.100 running 2 type x component speakers in rear deck and two 6 1/2 type rs in my kick panels. whenever i turn them up loud the amp kicks off. if the gain is too high will this make it go into protect mode. I have alreafdy changed my alternator and voltage regulator. any help?
If you set the gain too high on the AMP, at loud volume levels some clipping or distortion of the output signal will occur. Most amps have a Circuit inside that detects this clipping or distortion and applies protection to prevent damage to the speakers and the amp. It would help to know if you are driving the speakers with a Line level output or using the speaker output from your deck. There are many things that can cause an amp to go into protect mode, and knowing a little more about your setup will help to solve the problem.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Did you change out the factory deck? If not, wire the tweets to the existing wiring. If you already have tweets they have been crossedover already. However, if you replaced the deck, you may need to run new wire to the doors and use the crossover that came with your component set. Hope this helps
Disconnect all speaker leads from the PDXf4 - test. If the amp turns on and says on ok - then turn off, and attach one speaker lead at a time until it turns off. When it does check that speaker and the speaker wire to see if it is blown, shorted out etc.
The most likely suspect would be an internal fault on the Alpine PDX-1.1000. So other than verify the 2 ohms per speaker using a continuity tester (DVM / VOM), all others involve opening the Alpine amp to effect repairs.
Options then are: to consider a DIY (do-it-yourself) repair if and only if you're very familiar with electronic components & circuitry, use of a DVM/VOM and a soldering iron/station.
Access to a Service Manual or at the very least, a schematic diagram would be a necessity (although a challenge in itself) as detailed procedures, test points diagnosis flowchart would be outlined though should you be uncomfortable with a DIY, perhaps your best bet would then be to seek the services of an authorized Alpine Service Center (specially if still under warranty) or a qualified professional.
Now referring to http://www.fixya.com/support/t1817194-stuck_in_protect_mode_phoenix_gold_ryval
"1. Does your amp have a high input port? This is where instead of RCA's you feed it speaker output from your head unit? 2 If so try this and see if the magic happens.. If it doesn't your screwed and the problem is internal most likely in the input stage and that's why your having to "fool" the amp. 3. Also take off the remote turn on wire and make a short little jumper from the remote turn on to the B+ on the amp. Yeah the amp will blaze on but see if it changes the output."
The Alpine PDX-1.1000 is a physically small amp to produce the power that it does. The result is that it has less physical area for heat to dissipate. Running at or near it's maximum output into a 2 ohm load, it needs some serious airflow to keep it cooled down. I'd look for some way to get more air to it.
Although amps with 5 channels are pretty rare, you can get one. Alpine, Boston Acoustics, Infinity, JL audio, MTX, and Polk all have 5-channels ranging in price from around $350 up to around $1,000. The Alpine PDX-5 will output 75X4 watts RMS for the front and rear stereo channels and 300 watts to the mono sub channel. It is priced at $599.99 at Crutchfield.