HELP! Crossover for 803s/803d

[nick.h]

Hi,

I have been speaking to a couple of B&W dealers and they say that the 803s/803d have 3 crossovers inside the speaker box, is this true?

Crossover High
Crossover Medium
Crossover Low

(Obviously other models may have this aswell, but I am talking just about the 803 range)

How on earth do they connect together? My understanding is that the speaker cable comes in from the amplifier and hits the crossover and then is passed onto the speakers, thats with 1 single crossover, how do they connect 3? without having 3 inputs?

Is there a main crossover that pushes it to the other 3? so there is 4 in total?

[Kal Rubinson]

Most crossover filters are wired in parallel. So the single pair of input wires is connected to the input of 2, 3, or..... individual filters, one for each driver frequency range. If it is a 2 way speaker, 2 filters. If it's a 3way speaker, 3 filters.

Kal

[nick.h]

So if its a 3 way,

line comes in, split 3 times and each one goes to a crossover?

[Kal Rubinson]

So if its a 3 way,

line comes in, split 3 times and each one goes to a crossover?

Yes. I prefer to use the word filter since, for each driver, there is a circuit that filters which frequencies it is to get. Thus, the filter for the woofer and (the high pass portion of) the filter for the midrange, together, constitute the woofer/midrange crossover. But that's symantics.

Kal

[nick.h]

my question is are there 3 crossover boards or 1 board which has all the crossovers

[Kal Rubinson]

my question is are there 3 crossover boards or 1 board which has all the crossovers

I do not know but I surmise there is only one.

Kal