Words to Describe amplifiers

How amplifiers often is described ("________ amplifiers")

• intermediate
• feedback
• modern
• regenerative
• pass
• electronic
• negative
• solid
• high
• ended
• most
• type
• wave
• sound
• balanced
• power
• vertical
• integrated
• state
• distributed
• differential
• modulated
• logarithmic
• discrete
• conventional
• suitable
• identical
• sensitive
• commercial
• untuned
• monolithic
• mechanical
• biological
• stable
• parametric
• low
• practical
• optical
• tuned
• linear
• circuit
• electrical
• line
• broadband
• coupled
• multistage
• stage
• controlled
• separate
• available
• operational
• associated
• current
• typical
• powerful
• signal
• bipolar
• nonlinear
• audio
• doped
• quality
• selective
• hold
• efficient
• ideal
• multiple
• magnetic
• level