Speakers

Tweeter                       

The tweeter is from the danish company Scanspeak. It  is a 28mm soft dome tweeter from the series coded D2905. The series consists of three tweeters with similar designs (D2905/900000/ 930000/ 950000). I decided to chose the newest version 950000  because it has a non-resonant chamber, therefor it's not necessary to use a RLC-notch filter. The dome is less sticky than the version 900000, so dust will not adhere easy. 

The 130mm woofers are from the danish company Vifa. They were choosen for their flat frequency responce and good dynamic behaviour.   

Crossover

High pass:

• 12 dB  (C1,L1)
• impedance linearization   (R3,C3)
• volume level   (R1,R2)

Low pass:

• 6 dB  (L5)
• impedance linearization   (R6,C6)
• notch filterl   (L7,R7,C7)

I have chosen the electronic components out of the catalog from the german company Intertechnik. They have all different types you need to adjust the crossover. For C1 i used the Audyn  tinfoil cap - they are worth the money. All electronic parts even the speakers and damping material i buyed at Strassacker Lautsprechershop. The prize has been much better than at Intertechnik direct.