ELEVATE YOUR EXPERIENCE
PREAMPLIFIERS
Xs Series Preamps
Ultra High-End Preamp & Phono
When we began development of the Xs power amplifier five years ago, we knew that we would also need a companion piece.
We were given “carte blanche” on the design and an unlimited budget, the result of this is the Xs Preamp.
True “dual-mono” design
only component shared between channels other than casework, being the AC power connection to house power
Control section
includes its own regulated power supply
Minimal noise
Negligible channel to channel “cross-talk”
Xs Preamp Dual Chassis Preamp – $38,000
This large, dual-chassis preamplifier is built in true dual-mono arrangement. Each channel has its own power supply board with over 100,000uf of capacitance for unfettered transient response. Noise levels have been dropped from the already low-noise XP30. Refined circuit design and layout, new gain-stages with auto-bias and DC compensation all combine for optimal performance. But it all comes down to sound; once you listen to the Xs preamplifier, there is no going back.
Technical specifications
Awards and Reviews
Xs Phono Dual Chassis Phono – $45,000
The Xs Phono preamplifier represents an all-out assault on the state-of-art in Vinyl and the most intensive and difficult design effort made at Pass Laboratories. The final product of this massive effort extracts the utmost performance from a simple topology and operates with the extremely small and delicate signals coming from today’s wide variety of phono cartridges. The result is music that emerges from a quieter background and blooms into a richer, more precise soundstage.
XP Series Preamplifiers
High-End Preamps
The Pass Laboratories XP-10, XP-20 and XP-30 preamplifiers are the natural descendants to the long lived, highly acclaimed and successful X series of Pass Laboratories line-stages.
Dynamic sound
The XP preamplifiers sound more dynamic, bass lines are more clearly, cleanly and accurately delineated
Clear bass lines
cleanly and accurately delineated
Fine nuances and detail
instruments and voice are presented in a greatly refined spatial envelope and with better spectral balance.
XP-32 – $18,375
The XP-32 is a three-piece modular preamplifier consisting of one control/power supply chassis and two additional gain chassis each containing analog signals of a single channel. The XP-32 generates less noise, crosstalk and distortion while delivering greater dynamic range, gain, output voltage and output current. But it is the sound, not the technical excellence, that truly makes this a breakthrough instrument.
XP-27 – $12,075
The twin chassis XP-27 eclipses the already exceptional performance of the well-reviewed and well-received XP-15, XP-25 & XP-17: delivering enhanced RIAA performance at a fraction of the previous distortion. The new design uses double shielded low noise toroidal transformers in external supply connected via aviation grade circular connectors using silver over oxygen free copper. The power supply is dual mono with two transformers with lower radiated and mechanical noise. Noise is the most prominent part of THD+N at low levels, so by lowering noise we get better resolution and dynamics.The XP-27 input and gain circuitry are similar to that found in the Xs Phono. This means switching and loading is done at higher signal levels, minimizing noise and improving low level performance.
HPA-1 Headphone Amplifier – $3,675
Class A
Announcing the new Headphone Amp from Pass Labs!
Like the XP preamplifiers, the HPA-1 is the result of great attention to detail.
Starting at the power cord, the AC line is first filtered for high frequency noise and then isolated by a special toroidal transformer shielded by mu-metal for lower magnetic noise and shielded for electrostatic noise by a separate Faraday shield, grounded to analog ground. This is followed by fast/soft recovery rectifiers, generous CRC passive filtering and sophisticated discreet DC regulators and then more passive RC filters.
Works with headphones
with impedances of 15 ohms to 600 ohms
Low feedback wide bandwidth discreet design.
Class A
direct coupled Mosfet output stage
Custom low noise Torodial power transformer
with a Farady shield
Discreet regulated power supply for audio circuits.
Technical specifications
Awards and Reviews
AMPLIFIERS
Xs Series
Class A
These are Pass Laboratories ultimate expression of Power Amplifiers the perfect blend of science and visceral emotion.
If there’s a more emotionally satisfying amplifier anywhere, we’re not aware of it.
The successor to our already lavishly praised and well regarded Supersymmetry patent. Every technical effort has been made to assure exceptional specifications, among these:
Separate chassis
for lower electromagnetic noise
Power supplies
with greatly enhanced storage capacitance
Banks of redundantly parallel high speed
and soft recovery rectifiers
Noise filters
with improved high frequency
Larger and quieter transformers
Improved passive decoupling
Lower power standby
Input impedances
of 200 k-ohm balanced with negligible capacitance
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