Newbie need help in choosing an amp to power the seps

[tsikotshop]

Level matching is the main topic in these thread, and as i do my homework to finally clear some issues here, let me share what i've got..
Let me start in amplifier;
Amplifier's are rated by how much power they can deliver. Power should be measured in watts RMS and not in "peak", "max" or "music power". These are all bogus, inflated ratings and should be disregarded. The power specification can vary with the supply (vehicle) voltage and the load (total speaker impedance) on the amplifier. To compare one amplifier's output to another's it's important that the measurements were taken under similar conditions. Most power specifications should be stated like the following:
100 watts RMS, all channels driven from 20Hz-20kHz, into a 4 ohm load, 12 volt supply
You may have to look at the owner's manual to find these true specifications. Many amplifiers, even from the top brands, will print "maximum" power ratings on their amplifier heatsinks and product boxes. The power rating may also be given into a two ohm load or with 14.4 volts. Both of which can increase the power output. Make sure you're comparing apples to apples.
Next is the speaker ratings;
Speakers also have a power specification but it is how much power they can handle, not how much they deliver. Speakers use power and amplifiers deliver power. This specification is also given in watts RMS. Peak power handling is often given as well but RMS is the one to pay attention to.
So the question many people will assume the answer to is, "Do speakers with larger power handling sound better or play louder?". The answer is a definite maybe. The ability to handle power by itself means virtually nothing. A speaker that will handle a lot of power may sound better because it is probably built better than a speaker with lower power handling. But that's not always the case and the only real way to tell which sounds better is to listen to them. It may also play louder because it can handle more power. But if it has a lower sensitivity than it may take twice as much power to play at the same level as a speaker with a higher sensitivity. And higher power handling may not even be needed. If your amplifier only puts out 100 watts than you don't really need a speaker that can handle 300 watts.
This is the most straight forward way of matching car audio amplifiers to speakers. Hook each channel of the amplifier to a single speaker or speaker pair in the case of component speakers. This will give the amplifier a 4 ohm impedance load, the most common speaker impedance in car audio. You can drop the load to most amplifiers by wiring multiple speakers in parallel.
But not all amplifiers will be able to drive speaker impedances below 4 ohms. Most will be able to drive 2 ohm loads, but not all. Some high current amplifiers are capable of driving loads of 1 ohm or less but these are not the norm for non-subwoofer applications. Make sure you know how you will wire your speakers and the impedance the total load will be. Choose an amplifier that is capable of driving that impedance or you may have problems. Also know that decreasing the impedance load on an amplifier will not only increase power (a good thing) but it will also increase distortion, heat and the life of your amplifier (though the difference may be small for quality amplifiers).
In practice you almost never want to connect more than one full range speaker to an amplifier channel. It's true you will get more volume but you will also lose front to rear fading if you run your front and back speakers to a single 2 channel amplifier or your stereo image if you run the left and right speakers off of the same channel. By using a 4 channel amplifier you will retain front to rear fading, a stereo image, your distortion will be less and your amplifier will probably last longer.

[dalandan27]

mga sir, makikisingit po ako as thread, tutal separates naman topic.. ano po ba dapat config dun sa crossover ng FA EV-602 na separates? meron kasing -3db , 0 , +3 db, saan po ba dapat dyan? currently naka zero config ako..target ko po eh pure vocals lang sa separates.. subs na po ang bahala sa bass.. thanks!

[tsikotshop]

mga sir, makikisingit po ako as thread, tutal separates naman topic.. ano po ba dapat config dun sa crossover ng FA EV-602 na separates? meron kasing -3db , 0 , +3 db, saan po ba dapat dyan? currently naka zero config ako..target ko po eh pure vocals lang sa separates.. subs na po ang bahala sa bass.. thanks!

tweeter adjustment level po yata yan sir, fine adjustment po ng level yun, a, pag sobrang talas ng tweeter in 0db, adjust it to -3db, but if kulang sa tweeter, +3db will need to be set, normal is at 0db.