Pass Labs

Aleph 1

Amplifier, Power

Main Details
Maker Pass Labs Brand Nelson Pass Designer
Function
Channels/Tracks
  • 1 × Channel
Form Factor Standard Width
Signal Path Analog Hardware
Made In United States
Date Produced 1994-1996
Dimensions
(H × W × D)
Weight 122lbs
Frequency Response 0Hz-100kHz -3dB
Additional Specifications
Amplifier Topology Class A
Type Single Ended Three-Stage
Output Device Mosfet
Power Output (8/4/2Ω) 150W/300W/600W
Maximum Output 50A, 50V (Peak)
Gain (Balanced) 23.5dB
Gain (Unbalanced) 20.9dB
Gain (Unbalanced, XLR Jumpered) 28.9dB
Distortion (150W, 8Ω, 20Hz-20kHz) <1%
Input Impedance (Balanced) 25kΩ
Input Impedance (Unbalanced) 10kΩ
Output Impedance 0.001Ω
Damping Factor 100
Common Mode Rejection 60dB
Output Noise 600μV
DC Offset <50mV
Operating Temperature 50°C
Warm Up Time 1 Hour
Power Consumption 500W
Connections
Input
Connector: RCA (Phono, Cinch)
Description: Unbalanced, Mono, Socket (Female)
Input
Connector: XLR
Description: Balanced, Mono, Socket (Female)
Output
Connector: Binding Post
Power
Connector: Other
Controls
Parameter: Power
Control Type: Rocker Switch

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