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8 Pi x-over ? [message #52267]

Mon, 30 June 2008 18:32

solomty
Messages: 9
Registered: May 2009

Esquire

Hy .Wayne .. why in the 8 crossover picture have 14 resistors and in the x-over diagram only have 4 .Also tell me the the frequency of x-over of the 8 Pi .Thanks

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Re: 8 Pi x-over ? [message #52271 is a reply to message #52267]

Tue, 01 July 2008 00:36

Wayne Parham
Messages: 18786
Registered: January 2001

Illuminati (33rd Degree)

Each resistor in the schematic is formed by a group of resistors in parallel or series/parallel. The crossover frequency is 1.6kHz.

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Re: 8 Pi x-over ? [message #52272 is a reply to message #52271]

Tue, 01 July 2008 15:04

solomty
Messages: 9
Registered: May 2009

Esquire

Hy. Wayne . So partsexprees sell the Dayton 10 W non inductive resistors .So I need to group four I ohm 10 W value part ( 004-1) in serie to get the 4 ohm 40 W required in the woofer section of the 8 Pi . Does work the serie -parallel to found the right value of the resistor as in the speaker impedance chart .Thanks

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Re: 8 Pi x-over ? [message #52273 is a reply to message #52272]

Tue, 01 July 2008 20:12

Wayne Parham
Messages: 18786
Registered: January 2001

Illuminati (33rd Degree)

Resistors R1 & R2 are made with four 16Ω resistors in series/parallel, R3 is made with four 16Ω resistors in parallel and R4 is formed with two 16Ω resistors in parallel. All are 10W non-inductive parts.

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