Bi-amplifying
 

Hey newbie here,

I tried to do a search and nothing came up.
What is the purpose of bi-amplifying? advantages? disadvantage?

How do you do it?

Welcome to the forums. Now do you mean separate amps to each speaker...or separate amps to the woofer and tweeter in the same speaker. Bi-amplifing often meant that the drivers, mounted in the same frame, were each driven by separate amps. If you mean just using more than one amplifier then heck yeah. :)

Please clarify. Glad to have another stereo dude here.

most likely you will have to be using component speakers, unless they have seperate inputs. if the crossover on the speakers are not bi-ampable you will have to use an external crossover. basically what you are doing is using a seperate channel for each speaker, so for a set 2 way components you'll need 4 channels.

Bi = 2 I will also assume a coaxial or 2 way set of seperates

advantage is easier control over the individual speakers, for tuneability sake. (electronic crossovers vs passive, and level control primarily (minimizing use of equalizer), can easily adjust phase as well though that shouldnt in theory be necessary on a coaxial).

disadvantage is you need more amplifier channels (mo money, mo money)

I always thought Biamp ment just 2 amps. One for the lows like from 100 or less HZ down, and the other for the mids and highs from say 100 hz on up. Tri amp would be lows, mids, highs. An advantage is headroom. Disadvantage is cost and space. Since the lows (which require much more current and amp power to recreate) are being fed to an amp via an electronic crossover which allows only the lows to pass through, they can be custom taylored by the crossover as far as slope and phase and amp gain to sound best in the vehicle in which they are installed. Now this allows another amp to recreate only the mids and highs that are not being recreated by the "low" amp. This allows the mid/high amp to be pushed harder if need be and still maintain a clean signal since it is not called upon to recreate the low frequencies. You get better dynamics, quality and just better sound.

You would need 2 amps, and an electronic crossover. Some 4 channel or multi channel amp can do the same thing all by itself if it has the electronic crossover built in.