Technical question for sound systems?

Question

Is it neccasary to have a separate amplifier if you have active speakers? If not why not?

What does active speakers mean?

Many thanks in advance for any answers.

I am refering to the kind of PA system that singers and muicians use.

Answer 1

Professional musicians want the highest fidelity possible, so their speaker systems use 3 sets of speakers --- each designed for specific frequency coverage. The Woofer covers bass frequencies (40 Hz to 400 Hz). Midrange speakers cover from 400 Hz to about 5KHz. Tweeters cover 5KHz to more than 20 KHz. Professional amplifiers have "crossover" networks to make sure the correct frequencies go to each speaker. Much higher power (100 watts or more) is needed for Woofers (or Sub-Woofers). 25 to 50 watts is sufficient for mid range, and 15 to 20 watts is adequate for Tweeters. Speaker systems which do not require an external amplifier are usually called "amplified" speakers. There is such a device as a "Passive" radiator --- usually designed to boost the bass. It looks like a speaker but has no wires connected to it and needs no amplifier. Passive radiators are usually in the same enclosure as the Woofer.

Answer 2

Active speakers have an inbuilt amplifier so a separate power amplifier is not needed. A lot of portable equipment, and PC's, have a line out (as well as a headphone out) which is intended to drive active speakers. Many subwoofers, as used in home cinema systems, are active as are most PC speaker systems.

Answer 3

active speakers have their own amps built in..... it depends how powerful you want the speakers to be, as to whether you use a separate amp...

Answer 4

paul is right about built in amp,depends on what output you need if a lot u may need a bigger separate amp.again depend,s what you are doing gig wise.

Answer 5

Are you talking about car or home speakers. Please be more clear