Pass Labs pre-amplifier owner manual

Models: pre-amplifier

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signal typically adds additional gain stages and degrades the inherent noise and distortion superiority of balanced signal, coloring what you eventually hear.

X0.2 Owner’s Manual

signal typically adds additional gain stages and degrades the inherent noise and distortion superiority of balanced signal, coloring what you eventually hear.

Pass Labs, through its unique patented “Supersymmetry” topology, maintains the advantages of a true balanced signal throughout the electronics chain. The salient point of this approach affords significantly less signal manipulation, higher input impedance, as much as a 100:1 (20dB) reduction in distortion while providing greater gain, and twice the dynamic headroom of identical circuits running single ended.

The X0.2 maintains the integrity of its received signal by treating all sources internally as balanced signals and converts seamlessly between balanced and unbalanced inputs and outputs without any additional components in the signal path. This was a conscious effort by Pass Labs to enhance the consumer’s ability to integrate source components and power amps with otherwise incompatible requirements through a virtually transparent control center.

It is not absolutely necessary to have the “mono” cable installed between these connectors unless you plan to operate the X0.2 in mono mode. You may use our supplied “mono” cable or an aftermarket male - female XLR of your choosing. If you choose an aftermarket cable, length should be consistent with the placement of your equipment and not excessively long.

The DIN connectors plug into their mating jacks and then screw into the rear panel on all three chassis. These connectors are intentionally a snug fit, but should never be forced. The single unmarked DIN jack on the right rear of the power supply control chassis is currently unused, we have reserved it for future performance enhancements.

We have provided a standard IEC AC power cord that fits into the IEC line receptacle at the rear of the pre-amplifier power chassis. The pre-amplifier is equipped for operation with an earth ground provided by the user’s AC outlet. Do not defeat this ground. The chassis and circuit ground of the pre-amplifier are connected to earth through a power thermistor, which gives a ground connection for safety but helps avoid ground loops.

As a safety issue we suggest that the power cord should be the last cable installed on your pre-amplifier. The power cord should be attached to the pre-amp power supply prior to plugging into “house power.”

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Pass Labs pre-amplifier owner manual