Wanted to give a shout out to Ken for providing: 1) directions regarding the A1 IC, and 2) a set of tweeter protection poly switches.
I asked someone from Head-Fi to build a A1 for me according to Ken's directions, and asked the same individual to solder in the new poly switches. The work was completed today, and I am very pleased with the results. Ken, thanks again for your assistance regarding providing the A1 directions and a set of poly switches. I now feel a greater level of comfort running my SDA 1Cs with my monoblocks, and I no longer have any issues with the tweeters cutting out on louder volume levels. All's good in the realm of audio!