Amplifiers

• What are the two main types of amplifiers mentioned in the study material?

  Valve amplifiers and solid-state amplifiers
• When did amplifiers begin to be used consistently in popular music?


  In the 1930s
• Why did guitarists start using amplifiers in the 1930s?


  To increase the volume of their instruments and balance with larger jazz ensembles
• What was the primary technology used in amplifiers until the late 60s/early 70s?

  Valves
• What are the advantages of solid-state amplifiers over valve amplifiers?


  They are cheaper, smaller, and more reliable
• How did the introduction of solid-state amplifiers impact the efficiency of amplifiers?


  It allowed amplifiers to be made more efficient, impacting affordability and size
• What has been the trend regarding valve amplifiers in recent years?


  There has been a resurgence in their use
• What are the two types of audio clipping associated with amplifiers?


  Soft clipping and hard clipping
• How does soft clipping differ from hard clipping in amplifiers?


  Soft clipping allows for a warmer overdrive, while hard clipping gives a harsher overdrive
• What considerations do musicians have when choosing an amplifier?

  • Type of overdrive sound (soft or hard clipping)
  • Size of the amplifier
  • Power requirements
  • Personal preferences