Jonathan... I haven't been able to contact Sublime either. I sent an e-mail several days ago with no response. So... armed with one of those 4 Preamps, and Two Class-D Gan 350 wpch Amplifiers, and One Polk Powered Sub-woofer... I would require a 3-Way XO (NOT a 2-way?) which COULD be either the Marchand XM44 OR the DBX Driverack Venu 360??? And if that's true, then it appears the DBX is not only cheaper ($1100 as opposed to $1400), but also offers a whole lot more in terms of features???Yeah, that's worrying, I scanned DIYaudio, and others are reporting the same.
Must be a one-person show and they are either not responsive enough or have moved on.
Mike, I'd proceed with caution, only order once you'd established contact. And possibly, time to look for alternatives (Marchand is always one).