It is a device that filters out frequencies of music. Most car audio systems that are high end use different types of speakers for different speakers. This is an active crossover meaning that it requires power. It plugs into the line level RCA plugs before it hits the amplifiers. So, for a big speaker that plays bass frequency, you don't want to have high frequencies going to it, it just wastes power. For little speakers, you want only high frequencies going to it. It wastes power and low bass on the little speakers at high volume sounds really bad. Also, this particular crossover seems to have the option of being able to turn up your bass with an adjustment at the dashboard so you can crank only the bass and not the rest of your system.
1 BOSS audio remote level/x-over << what is this?
4 gauge wiring is just the size of a wire. The less the gauge, such as 2 or 0 or 1/0 means that the wire is bigger. The bigger wire will transmit power much better. This instance seems to be wiring for an amplifier.
4 gauge wiring, PPI capacitor << what is this?
The PPI capacitor is a capacitor. A capicitor is a device that stores energy so that the amplifier can use it if it needs it. When the bass hits really hard, the power system of the car cannot provide enough power to certain amps, so it helps to put capacitors on the power system. A capacitor can store and discharge energy very quickly. The larger the "farads" of a capacitor, the more it can store and discharge. Farads is merely a measurement unit of capacitance. Also, people call capacitors "Caps".
A mono amp is a single channel amplifier. It typically is used to run one or more subwoofers. Somebody could use a mono amp to power one channel of a speaker set, but in order to get left and right channel of stereo, they'd need 2 mono amplifiers.
- Mono, is this just a amp to run for just like specific speakers?
A 2 channel amp has two channels of power. You could run a left and right channel from it, you could run a pair of subwoofers with it. Most two channel amps can be bridged which means you use the 2 channels in conjunction so that you make one more powerful channel
- 2/Channel, is this just a amp to run the subs and the component speakers?
yes. Usually a 5 channel amp is used to run front right, front left, rear right, rear left and a subwoofer.
- multi/channel, is this just a amp to power more then two sets of speakers??
Sound Pressure Level. How much pressure sound is causing. The higher this is, the louder it will be. This is measured in decibels. at 10 meters away, a jet engine is approx 140 dB. at 160 dB humans instantly lose their hearing. Competition vehicles can get up to 170+ dB.
root mean square. it is a method of averaging a set of observed measurements or numbers. It basically is a way to give a very good average of something. RMS power of an amp is power that you can expect to get all the time.
Hz is hertz, or a measurement of frequency. Humans can hear from 20-20,000 Hz. Very, very very low bass is 25 Hz - 35 Hz. Super high sounds are usually 10,000 Hz +
Well, I didn't answer them all, but I hope it helps.
DEQ-P9 (30band eq L/R, time alignment, 36dB/oct 4 way crossover)
Soundstream Tarantula (for subs)
Precision Power PCX-4125 (for horns and midbasses)
Image Dynamics CD2 comp mini horns
Scan-Speak 7" 18W/5535A midbasses
Subs still pending.