Power Amplifier Brüel & Kjær Type 2732

Power Amplifier Type 2732 has a usable frequency range from 40 Hz to 15 kHz (full capacity) or DC to 150 kHz (reduced capacity). The rated AC output is 120VA into a 4Ω exciter or resistive load, in the frequency range DC to 15 kHz (±0.5 dB). The maximum voltage gain is 17 dB. Harmonic content of the output is very small as heavy negative feedback is used. The instrument can tolerate temperature and supply line variations while maintaining excellent stability. Type 2732 can be used as a voltage generator with low output impedance and a flat voltage frequency response, or as a current generator with high output impedance and a flat current frequency response. The RMS output-current limit is adjustable. The instrument consists of an input stage, a preamplifier, a power amplifier and various warning and safety circuits with indication lamps. A multifunction display shows output current and output voltage.

  • Output Voltage  22 V RMS, DC to 15 kHz
  • Output Current
    • 5.5A RMS, 40 Hz to 15 kHz
    • 5.0A RMS, 15 Hz to 15 kHz
  • Maximum Voltage Gain 17 dB (±2dB) @ 1kHz
  • Frequency Range
    • Full Capacity: 40Hz to 15 kHz
    • Reduced Capacity: DC to 150 kHz (20 dB)
  • Harmonic Distortion
    • <0.1% (40Hz to 5 kHz) Low Impedance Mode
    • <0.2% (5 kHz to 15 kHz) Low Impedance Mode
    • <0.2% (40Hz to 2 kHz) High Impedance Mode
    • <0.8% (2 kHz to 15 kHz) High Impedance Mode
  • Input Impedance  >10 kΩ
  • DC Input
    • DC to 15 kHz ±0.5 dB
    • DC to 150 kHz ±3dB
  • AC Input  15 Hz to 15 kHz ±0.5 dB (2 separate BNC sockets at rear panel)