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XP-30 Owner’s Manual
volts to a balanced no-feedback follower output stage?
The XP-30 is fully capable of both tasks at once. The internal gain
of each stage can be boosted another 16 dB via an internal jumper
and the preamp can serve as the low source impedance front end to
the new generation of Class A power followers. Don’t laugh – they
already are for sale, and there are more coming your way. If you
have an XP-30 you won’t have to buy a new preamp...
The output impedance of each output is quite low and thus able to
better drive long cable runs or cables with greater capacitance or
amplifiers with low input impedances.
XP-30 volume control is totally new and sonically unique. It’s
measured performance - distortion, bandwidth, noise, and resolution
is beyond reproach. It preserves the dynamics and detail of the
music passing through it, and scales this performance over its 100 dB
attenuation range.
Wayne Colburn has further refined his thinking of how the active
circuit should serve the music. Like Nelson, Wayne looks at parts
and sees not applications but potentials. The XP-30 uses a new and
more advanced version of the gain modules that have been popular
in Pass products for the last ten years. It has lower distortion and
wider bandwidth than its predecessor and also features a dramatically
higher input impedance. This improved version of our symmetric
topology sounds so exquisite that that it has also been adopted in the
new “Dual Chassis Amplifier” prototypes. Pass Labs has made large
purchases of discontinued Toshiba Jfets and Mosfets to support
production of this new gain stage for the next ten years.
Each of these efforts have contributed to a preamp that is more
resolving, dynamic, spatially accurate and closer to the real joy that is
music.
To summarize:
The XP-30 is a time machine, offering a greater “look-back” at the
original musical performance and conveying additional insight to the
artist’s creative intent. The XP-30 will help you rediscover the joy of
your record collection.
It’s measured performance is our best yet.
It has some features that will help you get more out of your system
– things that you may not yet appreciate.
The XP-30 is the preamplifier that we built for ourselves.