Two-Channel Models of APx525 Audio Analyzer

Key facts

The Audio Precision APx525 is two-channel audio analyzers that combine an award-winning user interface with AP's legendary commitment to performance. APx525 has two balanced and two unbalanced analog inputs and outputs plus 192K digital inputs and outputs. New breakthroughs allow APx525 to generate signals all the way down to 0.1 Hz. Maximum input voltage is rated at 300 Vrms (160 Vrms for unbalanced) and typical THD+N is −108 dB (at 1 kHz, 2.5 V). APx525 is also the only audio analyzer in the world to enable common mode rejection ratio (CMRR) measurements in accordance with IEC60268 section 14.15.1.

• Maximum Rated Input Voltage
  230 Vpk
• Maximum Bandwidth
  >90 kHz
  >1 MHz [with BW52]
• IMD Measurement Capability
  SMPTE, MOD, DFD
• Amplitude Accuracy (1 kHz)
  ±0.03 dB
• Amplitude Flatness (20 Hz–20 kHz)
  ±0.008 dB
• Residual Input Noise (20 kHz BW)
  1.3 µV
• Residual THD+N (20 kHz BW)
  –105 dB + 1.4 µV
  Typically <–108 dB (1 kHz, 2.5 V)
  Typically <–110 dB (1 kHz, 2.5 V – option AG52 installed)
• Individual Harmonic Analyzer
  d2–d10
• Max FFT Length
  1248K pointsDC Voltage Measurement