Pass Labs
Solid State Amplifiers and Preamplifiers

    For over thirty years Nelson Pass has been a recognized as a true pioneer in the audio industry. During that time he has been awarded numerous patents for his innovative and often revolutionary designs. His ability to examine and solve problems in new ways have brought forth unique topologies that have truly advanced the state of the art. These technical innovations, coupled with the passion and enthusiasm of everyone at Pass, insure Pass products represent the very best in performance and technology.
      Beyond sonic ability, there is an often forgotten attribute that directly impacts the ownership experience - reliability. More than any other product I can think of, Pass gear has been dead-solid reliable. Indeed, in the number of years I have been selling Pass Labs, I've not returned a single amplifier in for repair! 
       If you are looking for a great sounding, reliable and innovative product, I strongly suggest you investigate Pass Labs electronics.

X-Series Amplifiers

X150 Power Amplifier

• 150 watts per channel into 8 Ohms, 300 into 4
• 50 watts per channel pure Class A
• Simple, two gain stage design
• Patented Supersymmetry™ circuit
• 124,000 µF of storage capacity
• $4000.00

X250 Power Amplifier

• 250 watts per channel into 8 Ohms, 500 into 4
• 75 watts per channel pure Class A
• Simple, two gain stage design
• Patented Supersymmetry™ circuit
• 200,000 µF of storage capacity
• $6000.00

X350 Power Amplifier

• 350 watts per channel into 8 Ohms, 700 into 4
• 90 watts per channel pure Class A
• Simple, two gain stage design
• Patented Supersymmetry™ circuit
• 180,000 µF of storage capacity
• $9000.00

X600 Power Amplifiers

• 600 watts per channel into 8 Ohms, 1200 into 4
• Mono block design
• 160watts per channel pure Class A
• Simple, two gain stage design
• Patented Supersymmetry™ circuit
• 180,000 µF of storage capacity
• $16000.00pr

X1000 Power Amplifiers

• 1000 watts per channel into 8 Ohms, 2000 into 4
• Mono block design
• 130watts per channel pure Class A
• Simple, two gain stage design
• Patented Supersymmetry™ circuit
• 250,000 µF  of storage capacity
• $24000.00pr

Preamplifiers

X0.2 Line Stage Preamplifier

• Three chassis design
• Independent digital and analog power supplies
• Entire signal path is fully balanced
• Patented Supersymmetry™ circuitry
• Radically new type of volume control, US patent pending
• $10000.00

X1 Line Stage Preamplifier

• Two chassis design
• Independent digital and analog power supplies
• Entire signal path is fully balanced
• Patented Supersymmetry™ circuitry
• Radically new type of volume control, US patent pending
• $5900.00

Xono Phono to Line Stage Preamplifier

• Two chassis design
• Three gain stage, ultra-low noise non-inverting pre-preamplifier circuit
• Zero negative feedback
• Fully adjustable cartridge loading (both resistance and capacitance)
• Extremely accurate RIAA equalization characteristic, varying ± .1dB from 10 to 20 KHz
• High gain - up to 76 dB
• 120, 000 µF of filter capacitance
• Five stages of filtering and regulation
• $4200.00