Some ideas on LSi9 crossover
mm840lsi15
Posts: 34
So I've had a delight of working on a little LSi9 crossover project for one of our fellow Polk enthusiasts.
The idea behind the build was to replace as many electrolytic capacitors with proper indestructible KZK White Line polypropylenes, replace the stock resistors with non-inductive resistors with Ayrton-Perry winding, exercise point to point soldering around the crossover, replace the stock HF inductor coil but use the stock inductor coils for MF and LF (and keep them as further apart as possible) to keep the cost a little lower and make it all look and sound as pleasant as possible.
I love all things space so I codenamed the satellite-like HF crossover 'Sputnik' and the rover-like MF and LF crossover 'Lunokhod'.
Sharing is caring so here's the build.
HF:
MF and LF:
Sputnik-1 and Lunokhod-1:
Cheers.
The idea behind the build was to replace as many electrolytic capacitors with proper indestructible KZK White Line polypropylenes, replace the stock resistors with non-inductive resistors with Ayrton-Perry winding, exercise point to point soldering around the crossover, replace the stock HF inductor coil but use the stock inductor coils for MF and LF (and keep them as further apart as possible) to keep the cost a little lower and make it all look and sound as pleasant as possible.
I love all things space so I codenamed the satellite-like HF crossover 'Sputnik' and the rover-like MF and LF crossover 'Lunokhod'.
Sharing is caring so here's the build.
HF:
MF and LF:
Sputnik-1 and Lunokhod-1:
Cheers.
Post edited by mm840lsi15 on
Comments
"If you keep banging your head against the wall,
you're going to have headaches."
Warren
The guy is not me and I'm not affiliated with him in any way.
Anyway, I can't stop praising those KZK caps as they're cheap, sound great and really easy to work with due to indestructible hard polycarbonate casing (makes it really easy to detach the caps whenever I glue together wrong caps or I rethink the overall design of the crossover component later).
The caps come in 4 varieties: classic metallized film polypropylene KZK White Line (tried those, love them), foil polypropylene KZK Orange Line (tried those too, love them), polyphenylene sulfide (PPS) film KZK Blue Line (never tried) and some fancy polyarylate (PAR) film KZK Black Line (I've got to, going to try those with my upcoming LSiM703 build).