SDA 2B Proper Resistance Values
Comments
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Meanwhile I am debating a newer form of SDA cable, pondering a single run of solid copper the same large diameter (8-gauge maybe?) as the pin of that silly proprietary connector, just buy a 10-foot piece at Lowe's, strip each end and jam it in the holes ... Poor-Man cable upgrade.
Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
Another view of how David mounts the capacitors on the stock 2B board, These boards have the TL upgrade capacitors installed. I was very happy with this arrangement. Everything is tight and solid. They sound great.
The upgraded crossovers sound even better when connected to Erse low DCR inductors. I chose to mount the Erse inductors right onto the large stock inductor so the crossover and the inductor can be handled and installed as a single unit.
- SDA 2BTL · Sonicaps · Mills resistors · RDO-198s · New gaskets · H-nuts · Erse inductors · BH5 · Dynamat
- Crossover upgrades by westmassguy
- Marantz 1504 AVR (front speaker pre-outs to Adcom 555)
- Adcom GFA-555 amp · Upgrades & speaker protection added by OldmanSRS
- Pioneer DV-610AV DVD/CD player
- SDA CRS+ · Hidden away in the closet
- SDA 2BTL · Sonicaps · Mills resistors · RDO-198s · New gaskets · H-nuts · Erse inductors · BH5 · Dynamat
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Now after five months of enjoying my re-capped speakers, I realized something when looking again at the crossover schematics vs. my upgrade. When I yanked out & tossed the protection varistor (tweeter cap is direct-soldered, meaning, I did not substitute a 0.5ohm resistor in the path), I also yanked out & tossed a tiny 750pF shunt(?) capacitor previously in parallel with the 12uF tweeter cap. What was the purpose, electrically-/audibly-speaking, of that tiny cap? Were they important enough that I should purchase & re-install them in the circuit(s)?
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The Silver Mica Cap was used to improve the performance of the Mylar Cap. It's not needed for Metalized Polypropylene Caps.Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
Hey, thank you very much for that clarification, "westmassguy" ! Some day when I have more money again, I will likely purchase the appropriate pair of RD-0194-1 replacement tweeters ...