Pass Labs First Watt F7
Best refined sound for discerning audiophiles with efficient speakers.
This amplifier prioritizes sonic purity by stripping away complexity, using a clever feedback loop to achieve near-zero output impedance. It trades raw, room-shaking power for an incredibly refined, precise sound that makes even difficult speakers sing with startling clarity and control.
$4000.00
at
USA Tube Audio
Who it's for
- Audiophiles seeking an uncolored, lifelike reproduction of their favorite music
- Listeners prioritizing emotional connection and long-term listening pleasure
- Discerning buyers valuing high-end craftsmanship and long-term investment
Who should skip it
- Users with inefficient speakers or those needing high volume levels
- Individuals with limited space or concerns about heat dissipation
- Budget-conscious buyers or those seeking more features for their money
Performance breakdown
Transient Response
Startlingly fast and precise, capturing every nuance of complex musical passages.
Loudspeaker Control
Near-zero output impedance keeps even difficult drivers locked in perfect alignment.
Sonic Refinement
The JFET/MOSFET topology delivers a sophisticated, liquid-smooth presentation.
Dynamic Headroom
Limited wattage requires careful speaker matching for optimal volume and impact.
Signal Purity
Minimalist circuit design ensures the music signal remains exceptionally clean.
Build Quality
Robust, purposeful construction reflects Pass Labs' legendary commitment to longevity.
Key Specs
Topology
Two-stage push-pull JFET/MOSFET
Feedback
Low negative voltage feedback balanced with positive current feedback
Output Impedance
Approaches zero
Distortion @ 1 watt
0.05%
Input Impedance
10 Kohm
Gain
14.5 dB
Input Sensitivity (1 watt)
0.53 V
Input Sensitivity (max output)
2.7 V
Damping Factor
>100
Output Power (8 ohms)
20 watts @ 2% THD, 1KHz
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