• 608-831-3433
  • info@madisoud.com

Madisound's Loudspeaker Reference Library

26W-8861T +18W-8531G + D2905-9900 3way Passive Crossover Design

Passive Crossover Design for 26W8861T + 18W8531G + D29059900

3way crossover design for Scanspeak 26W/8861T 10″ Revelator, 18W/8531G 7″  Midwoofer and the D2905-9900 Tweeter

Anechoic design (flat response)

Woofer: 2.5 cubic foot, single straight vent 3″ x 3″ length.

Midrange: 0.25 cu. ft. sealed

Additional Notes: Crossover points about 300 Hz and 3.8 kHz. Nominal output ~ 87-88 dB. Two large value hi-pass caps. Significant padding in hi-pass circuit. -0- resistor value indicates optional padding to taste.  Note the woofer is in reverse polarity relative to the mid and tweeter.

 

  • Crossover Design, Scan-Speak

W18E-001 + R2904-7000 Passive Crossover Design

W18E-001 + R2904-7000 Passive Crossover Design Seas Excel W18E-001 + Scan Speak R2904-7000 2way Passive Crossover Design No box alignment specified. Very clean 2-way with low parts count, single hi-pass cap and minimal tweeter padding.

Read More »
August 9, 2018 No Comments

W18EX-001 + T25CF-0001 Passive Crossover Design

W18EX-001 + T25CF-0001 Passive Crossover Design W18EX-001 + T25CF-0001 Passive Crossover Design Box alignment: 0.25 cubic foot ported with single straight vent 2″ x 6″ Notes: Single hi-pass cap. Some extra padding on tweeter.

Read More »
August 7, 2018 No Comments

W18EX-001 + T25CF-002 Passive Crossover Design

W18EX-001 + T25CF-002 Passive Crossover Design W18EX-001 + T25CF-002 Passive Crossover Design Box alignment: 0.48 cubic foot vented with single straight port 2″ x 6″ Single hi-pass cap. Some extra padding in tweeter circuit.

Read More »
August 7, 2018 No Comments

W20RC38-08 + H1189 2way Passive Crossover Design

W20RC38-08 + H1189 2way Passive Crossover Design Silver Flute 8″ W20RC38-08 + Seas Prestige H1189 2way Passive Crossover Design No specified box alignment. Notes: Crossover point about 2.2 kHz. Output in the 86-88 dB range. Pretty clean design. One hi-pass cap. Fair amount of tweeter padding.

Read More »
June 21, 2018 No Comments

W22EX-001 + 12MU-4731T + D2905-9700 3way Passive Crossover Design

W22EX-001 + 12MU-4731T + D2905-9700 3way Passive Crossover Design Seas Excel W22EX-001 + Scan-Speak 12MU-4731T + Scan-Speak D2905-9700 3way Passive Crossover Design Anechoic design (flat response) Woofer: 1.8 cubic foot vented with single port 3″ x 4″ Midrange: 0.25 cubic foot sealed Notes: Crossover points @ about 350 Hz and 3.2 kHz. Two high pass

Read More »
June 20, 2018 No Comments