Specifications

APx511 Specifications 11
Specifications
APx511 hearing instrument analyzer
with APx500 v3.3 or higher measurement software
March 2013 NP0020.00020 r000
Characteristic Specifications Supplemental Information
ANALOG GENERATOR
Number of Channels
2, independent amplitude control Speaker and telecoil output on DB-15
on rear panel
Waveforms
Sine, continuously swept-sine, noise,
IMD test signals, multitone, wave file
playback
Sine Characteristics
Frequency Range (Fs) 100 Hz to 20 kHz Setting resolution is typically 45 µHz
Frequency Accuracy ±(0.0003% + 100 μHz)
Amplitude Range (Speaker) 0 to 5.7 V rms [16.1 Vpp] into 8  4 W into 8 
Amplitude Range (Telecoil) 0 to 110 mA rms into 4 
Amplitude Accuracy, 1 kHz
Speaker Output
±0.05 dB [±0.60 %]
Amplitude Accuracy, 1 kHz
Telecoil Output
±0.1 dB [±1.0 %]
Flatness (1 kHz ref)
100 Hz to 10 kHz ±0.05 dB
10 kHz to 20 kHz ±0.1 dB
Residual THD+N
1,2
Fs = 100 Hz–20 kHz  (–80 dB + 1.4 µV), 20 kHz BW Typically ≤0.005% THD+N
Non-Harmonic Content Typically ≤110 dB when Fs ≤20 kHz