Well duh, let's hope so. That's what you all bought 'em for, right? I'll wager that sticker is there cuz someone led by an attorney actually sued and won money for being an IDIOT.
@Gnote Finally got around to putting the Xilica back on the bench. With -10dBV (consumer gear) ref level unbalanced input I was able to get the input meters(in XConsole app) up to +5 dB out of a possible +21. This was with the gain of the input channels all the way up to +15. There is still another 15 db of gain in the outputs available. Curiously it looks like the front panel input meters show the input level WITHOUT the gain you add with the input gain control. But the meters in the XConsole app shows input level with gain added.
Well I'm still trying to wrap my head around what the front panel meters are showing because now I have a balanced signal at +4dBu going in and the meters show "signal" but the -12 led is not even lit.
But anyway it looks like you can drive this thing with unbalanced consumer gear.
@The Dude Thanks it is mainly for @Cantilope and his D75a. My D75 non a types have followed exactly the schematic I posted earlier in this thread. Sure makes things a lot easier. I finished the transformer replacement on the one I blew up. So now I am back to having two good modified units. I will not do full load tests for more than a couple minutes anymore
Thanks @shiva but I only need a few watts as these are going to be used to run the mid/tweeter driver on a pair of Jubes. Its just I am old school. If an amp is spec'd at 50 watts it should do it all day in my book. And on these old Crown units I thought Crown was truthful in their specs. I know on their current offerings the wattage specs are .
So I got two of the five D75s up and running with all mods. And then while doing a load test on one it went poof. Got a hold of a respected tech down here in San Diego area and he basically told me I'm an idiot for thinking a 50 watt into 4 ohm per channel amp should be able to put out 50 watts per channel for more than a couple of minutes. It actually melted the insulation between the windings of the power transformer. So now I will replace the transformer with the one from the fifth unit.