Hi everyone,
Just wanted to say thanks for everyone's help once again. I ended up picking up the ADS. Took the Polk speakers down to the shop, played them through the ADS, and no problems were exhibited when I played the tracks on the CDs that caused the weird staticy/popping noise when I had the Polks hooked up to the Kenwood receiver/amp. Anyhow, so I decided to pick up the ADS and will set it up over the next few days and see how it delivers in my space. I'll keep you posted. (I'd still like to figure out exactly what was causing the problem with the Kenwood stuff, but I'll leave that to some point in the future.)
In the meantime, does anyone on here have access to a manual for the ADS A2 amp, T2 tuner, and/or CD3 CD player, or know where I can get one? I've done a bunch of searches online, but I have come up empty. I even called Directed Electronics because they apparently took over ADS's stuff when it went out of business. But they only have old manuals on file for ADS stuff from the 1990s on, and the units I purchased were from the mid-80s. Most of the functions on the ADS are intuitive, but I have questions about some of them since my experience to date has been limited to a modern, late 90s Kenwood A/V receiver and CD changer.
By the way, without having listened to it yet in my space, I can say the one thing that seems attractive to me about the ADS amp is its versatility. It has three things that I have been really wishing my Kenwood had for some time: 1. A mono switch, since I have a bunch of old mono records and a mono cart; 2. A switch for both moving magnet and moving coil cartridges; and 3. Two "filter" buttons labeled as 25Hz and 7.5 Khz (which I assume will allow me to set the crossover from the amp itself should I decide to attach my crappy sub to the system or upgrade to a better sub in the future). It also has "pre out" and "main in" jacks in the back, which also means that if I like the sound but need more power in the future, I can just use the A2 as a pre-amp and hook it to a power amp with higher wattage capabilities. My Kenwood only had a single, mono pre-out jack designed exclusively for attachment of a subwoofer. I like this versatility!