API535-LA 500-Series Line Amplifier


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API 535-LA

Inspired by the 235 Booster Cards, the 535-LA Line Amplifer brings a flexible utility to your 500-series rack, offering variable amplification and attenuation to any source, level controls to any module that lacks it, and API's signature analog warmth. Different transformer output taps are selectable via switch for various gain responses, while the polarity inversion and -20dB patch switches maximize this unit's utility in your 500-series system.

535-LA Features

  • 500-series line amplifier
  • Pad and polarity switches
  • Three-position transformer tap selection switch
  • Calibrated level mode
  • Frequency Response: -0, +0.2, 30Hz-20kHz
  • THD+N: .006% at factory CAL Level setting (+4dBu)
  • Noise floor: -85dBu at factory CAL Level setting
  • Gain Range: -inf. to 53dB
  • Maximum Input level: +32 dBu, balanced (with PAD)
  • Maximum Output level: +32 dBu MAX, balanced (1kHz)
  • Input Impedance: Greater than 20,000 ohms, ~4,000 ohms w/ pad
  • Output Impedance: Less than 75 ohms
API 535-LA 500-Series Line Amplifier Reviews