Linkwitz Riley 4th. order crossover design

S

S15151515S

Audiophyte
Hi !

Questions about Linkwitz Riley 4th. order crossover for my DIY home theatre project (sealed enclosure box design - front L/R).

Crossover: (Linkwitz Riley 24dB/octave rolloff (filter Q=0,50 -6dB = 0dB at crossoverpoints): Beyma CP350Ti (1280Hz) Sensivity 104dB) and Beyma CP21F (5120Hz Sensivity 105dB) - tweeter group attenuated 1:1 (equal to bass/mid section (2x Beyma 8BR40 - Sensivity 90dB each)
Impedance Correction 8 ohm and time alignment/delaycorrection.

Components: Capacitors (Audyn White Series), noname inductors (if possible all in 1,2mm wire version) and noname ceramic resistors.

Between the two Beyma 8BR40, Beyma CP350Ti with TD235 horn and Beyma CP21F is spacing 2cm - over the Beyma CP21F in top is 3,4cm and 32,2cm below the lower Beyma 8BR40

Question: Need help to the schematic design (which components and values) - can it fit on a PCB (20 x 30cm/ 8" x1 2") ?
 
A

Antus

Audioholic Intern
although L-R 4th order crossover is excellent on paper, it may or may not be the best option because u will need LOTS consonants.

for woofer, inductor are more important. get as thick as you can afford. u can use bi-poler cap.
for mid-range, capacity in series are important, get some good one. Audyn, or Audyn Plus. for inductor, copper foil is better, u don't need thick one, 14GA or even 16GA are pretty good already.
for tweeter: cap is extremely important. maybe use Audyn Plus only. again, copper foil inductor 14 or 16GA.

with fewer consonants, u can afford better quality ones.

resistor for are very important. don't use cheap one. use only non-inductive resistor only no matter where is it at. compare to other consonants, resistors are cheap. a very good quality (mills) cost only $2 a piece. there is no reason to use cheap one.
 
TLS Guy

TLS Guy

Seriously, I have no life.
Hi !

Questions about Linkwitz Riley 4th. order crossover for my DIY home theatre project (sealed enclosure box design - front L/R).

Crossover: (Linkwitz Riley 24dB/octave rolloff (filter Q=0,50 -6dB = 0dB at crossoverpoints): Beyma CP350Ti (1280Hz) Sensivity 104dB) and Beyma CP21F (5120Hz Sensivity 105dB) - tweeter group attenuated 1:1 (equal to bass/mid section (2x Beyma 8BR40 - Sensivity 90dB each)
Impedance Correction 8 ohm and time alignment/delaycorrection.

Components: Capacitors (Audyn White Series), noname inductors (if possible all in 1,2mm wire version) and noname ceramic resistors.

Between the two Beyma 8BR40, Beyma CP350Ti with TD235 horn and Beyma CP21F is spacing 2cm - over the Beyma CP21F in top is 3,4cm and 32,2cm below the lower Beyma 8BR40

Question: Need help to the schematic design (which components and values) - can it fit on a PCB (20 x 30cm/ 8" x1 2") ?
Why are you using car speakers in a speaker set intended for HT? This seems a common mistake.
 
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