Yes, I've got my TV, a wide screen Philips CRT, and the tuner section of an old Advent 300 receiver

also plugged in to the Creek. I love the convenience of remote switching and volume. The sub is absolutely killer. Its been out for about 6 months now and if you're REALLY curious, you should sign up for the forum at AV123. Many members there are willing to personally audition gear and if you post a request in their forum you'd probably find someone near your area willing to host an audition. I've owned Sunfire and Velodyne subs and the UFW-12 is in a whole nuther galaxy. The customer service at AV123 is also WAY above the rest.
For clarity's sake, pun intended, I should explain exactly what the Marchand XM46 does. You can think of it as half of a crossover. Any crossover consists, basically, of a high pass filter, sending the high frequencies to a tweeter, and a low pass filter, sending the low freqs to the woofer. A regular passive xover is used after the power amp and resides in the speaker cabinet. An active electronic xover is used before the power amp(s) and separates the highs and lows and sends the respective signals to amps dedicated to the highs and lows. The XM46 is a passive line level, meaning it does not plug into the wall. There is less circuitry and no power supply to get in the way of the signal. The penalty is that there is an insertion loss, meaning there is a lessening of the signal, in the case of the XM46, 1db. Marchand has the ferrite core inductors hand wound to the specific frequency that is requested, in my case 70hz, at 24db per octave. You could also specify slopes of 6, 12. or 18 db per octave. I feel a steep slope is required in integrating a sub, as it lessens the chance of a mid-bass hump, and decreased localization when using a mono sub. I had considered a Behringer DCX digital crossover but it just adds SO much more circuitry and complication to the equation that I decided to opt for a simpler solution. I was kind of lucky that the DCXs were out of stock that caused me to look for another solution. Thanks go to planet10 at diyAudio forum for suggesting the Marchand.
I'm busy ripping discs to my hard drive and encoding to flac files on my days off and each disc, some I've owned for 25 years, is a revelation. I feel I'm getting sound better than the mastering house that mastered the CDs as I'm hearing stuff that, had the mastering engineer heard it, would have been done differently. Just stunning.