Threshold S/350e Power Amplifier

A classic STASIS stereo amplifier returns at a much affordable price
150 Watts/channel into 8 Ohms



  • High-current class A/AB output stage
  • Classic STASIS design
  • Balanced and single-ended inputs
  • Massive custom toroidal power transformer
  • Easily drives low-impedance reactive loudspeaker loads
  • Low-noise solid-state design
  • All discrete components
  • Accurate, detailed reproduction
  • Minimal feedback
  • No transistor glare
  • Direct coupled input to output for tight, extended bass
  • Premium components
  • Isolated power reserves for voltage and current gain stages
  • Gold-plated RCA jacks & XLR connectors
  • Custom high current speaker output terminal posts
  • Traditional Threshold rugged chassis construction
  • High reliability
  • Designed in the USA
  • Handbuilt by Threshold International Ltd. (Hong Kong)
  • Specifications
    Nominal Power Output:
    150 Watts per channel at 8 Ohms
    300 Watts per channel at 4 Ohms
    Bandwidth Response: flat DC to –3dB @ 100kHz
    Noise: no greater than –100dB, referenced to rated output
    Distortion: less than 0.1% (@1kHz,
    rated output power @8 Ohms)
    Input Impedance: 50k Ohm (RCA),  600 Ohm (XLR)
    Finish: Natural Aluminum
    Dimensions and Weight: 19″ W x 8.75″ H x 13.25″ D, 48.26 cm W x 22.3 cm H x 33.7 cm D
    Weight: 54 lb/25 kg