Anyone HEARD the qol 'signal completion' device?

I don't have one, let alone two of them. I would think one of these dealers could do this. I also don't see the risk of "frying" anything by hooking up two line level devices, that reportably have no gain, in series. But, you never know, so whoever does this should wear a fire suit.

I will be posting my impression of the Qol this weekend.

Kclone those are all options for placement of qol unit. Just choose the one that works for you best. For me after the pre-amp was better. If you put it before amp you will only have qol working for that one source. after pre-amp all sources have option for qol.

I finally took some time and listened to the mono set of the Beatles on cd through the qol unit. I set ARC pre-amp to mono and qol to mono. The improvement is just as profound as with stereo. You have to hear it to believe it.

I've been reading this thread with some interest; especially after reading Robert Harley's review recently. I've been curious about adding room 'tweaks', either the Syergistic Research ART system of bowls on wood blocks; the Stein music harmonizer system, or this product...seems like they all have supporters, but only have funds for one of them. How sensitive is this device to interconnect cables? In other words; have you used identical quality cables from pre-amp to amp; and added identical set for the qol device? Does it reflect different quality or brands of IC's, or is it pretty immune to cable influence? Same with power cords? I'm just thinking about the total price of admission to this dance; $4k for the device; $500-$800 for quality balanced 1 m IC's; and $400 for a power cord; makes it as much as a new DAC, or component. If I jump; I'll probably place it between preamp(tubed VAC) and solid state mono blocks...any issues with impediance matching? Thanks. Looking forward to hear from other people's experience...as I have problems in my room itself; that this might help solve.