Help with crossover capacitors


I am re-capping some Altec Lansing 890C Bolero speakers.  They have 6uf/50volt and 3uf/25 volt caps.  What will change if I use 5.6uf and 3.2 caps?  I can't find the exact 6uf and 3uf values.  Should I go a little bit higher on those values or lower?  Any suggestions?  I'm looking at Dayton, Mundorf or Jantzen caps but I'm open to suggestions.

dannybad

Showing 1 response by ieales

Chaps,
When you parallel caps and resistors, you also change the inductance, which may or may not affect the sound depending on the rest of the circuit.

danybad:
I would remove the shelving control and associated resistors to make the system flat , get a good air or ferrite core inductor, improve layout so the cap is not in the inductor magnetic field and anchor the parts to they don't flap about in the breeze.

Be advised that it is impossible to evaluate a capacitor [-or anything else-]  in isolation. A cap that is a bit zippy with a ringy tweeter may be dulcet with a soft dome.

FWIW, I used Dayton pp to replace mylars on ancient Audax silk dome tweets and they are stellar.