Help with Equitech 1.5Q power conditioner

I believe some equipment manufacturers put a cap or sometimes a high ohm-age resistor connected from the neutral to the chassis

I haven’t seen every piece of equipment but this should not be the case for many decades. There is however often a resistor/cap between the signal ground and chassis ground, which often leads to endless fun tracking down ground loops. The resistor doesn’t cause ground loops, the ground connection, resistor or not, in the signal causes it. A place where transformer coupled inputs really shine. :)

The classic linear power supply I’m familiar with has no reason to connect the neutral to anything but the transformer primary winding but they often usually connect the center tap of the secondary to chassis ground, which is of course also often connected to the EGC. Some equipment I’ve seen does the right thing by avoiding the EGC altogether and being "double insulated." Luxman integrateds are like this, which is brilliant from a noise point of view but given what I’ve seen I’m not sure how their amps are double insulated.

Visit EquiTechs website.  That is how their Balanced Power works.  Measure as I described and you should see that +60 hot to ground -60 neutral to ground 

@oddiofyl - Please tell me what -60V AC means. :)

I’m familiar with balanced power and even repped one such device (ages ago). Even if that’s how they describe it, it’s not really accurate.

If you doubt me, get a multimeter, and buy an Equitech and measure it yourself.  Send me a picture of the + and - readings. :)

BTW, the output of a balanced power conditioner is not dissimilar from the 220V outlets your big appliances (range, dryer, HVAC, etc.) use.

It’s still not one +120 and one -120 V line. It’s two lines from the same transformer winding that run in opposite polarity. It is impossible to measure +120VAC. You can’t tell one from the other. The only thing you can do is measure the delta between them, which in this case would be 220VAC.

I’ve often wondered, along the same lines if the ideal situation wasn’t actually to run 220VAC to an audio room and use a combined step down and balanced output conditioner. Balanced power to balanced power essentially.

While I don't want to encourage anyone to poke around in a 220V outlet, I really don't!  I can say categorically that if you took the most advanced multimeter on earth to your dryer's 4 prong outlet you can identify 2 hot lines, but cannot identify one as being + and the other - based on the meter's readings.  Impossible.  You could at best identify 2 lines which are either  ground or neutral, and 2 lines which are energized.