S-100 Solid State Power Amplifier By Audio Research

The S-100 solid-state amplifier is designed to deliver the musical engagement, clarity, and emotional connection often associated with high-end tube amplification, while offering the control and efficiency of advanced solid-state engineering.

Built on a true dual-mono Class A/B platform, the S-100 delivers impressive power and dynamic performance well beyond its compact footprint. Dual toroidal transformers and a fully balanced stereo circuit contribute to excellent channel separation, authority, and sonic precision, while carefully selected bipolar transistors provide exceptional transparency, speed, and natural musical detail.

Styled with a beautifully machined aluminum chassis available in black or silver anodized finishes, the S-100 blends timeless Audio Research-inspired aesthetics with a sleek, contemporary appearance. Custom-machined heat sinks and hidden fasteners create a clean, refined look from every angle.

Engineered for serious music enthusiasts, the S-100 combines meticulous craftsmanship, advanced solid-state performance, and carefully tuned musicality into a sophisticated high-end amplifier solution. Whether the S-100 or the S-200 is the better match for your system will depend on your speakers; Jaguar can help you figure this out.

The Absolute Sound
“I think this is an excellent preamp and amp combination. But excellent preamp and amp combinations won’t transform your system if it has significant problems with room treatment and setup and speaker distortions and DAC nastiness. The Audio Research S-100 and LS-3 could, however, make a very good system better. They could also form the basis for building a great system.”

https://www.theabsolutesound.com/articles/new-audio-research-s-100-amplifier-and-ls-3-preamp-best-amplifiers-under-10k-series/

• Power Output:
  • 100 Watts per channel into 8 ohms
  • 200 Watts per channel into 4 ohms
• THD:
  <.1% from 0.25W to rated output into 8 ohms @ 1Khz
• Input Sensitivity:
  1.4V RMS Balanced for rated output
• Input Impedance:
  100kΩ Balanced or Single-Ended
• Gain:
  26dB
• Input Sensitivity:
  1.8VRMS for rated output
• Noise:
  <60μV output
• Frequency Response:
  +/- 0.1dB from 20Hz to 20KHz
• Damping Factor:
  ?? from 20Hz to 1KHz
• Power Requirements:
  • @120VAC
  • Standby: 0.25W
  • On, idle: 48W
  • Rated output: 475W
• Dimensions:
  • Width 19” (48.26 cm)
  • Height 7” (17.78 cm)
  • Depth 17.5” (44.45 cm)
• Weight:
  • 41 lbs (19kg) Net
  • 63 lbs (28.5kg) Shipping