Perreaux SX25i User Manual

Page of 27
 
 
 
23
  THD+N .....................................................0.002%, @ 1kHZ into 8
Ω
 
Total Harmonic Distortion + Noise is the percentage of output 
signal which is made up of frequencies added due to harmonics 
of the fundamental frequency and noise.  By using low-noise 
input circuitry and Class A signal stages, Perreaux engineers 
have kept this figure to a minimum. 
Frequency Response.................. 20Hz to 20kHz, +0dB -0.25dB 
Describes the frequency range where the amplitude or strength of 
the output signal deviates by no more than 0.25dB. 
Signal to Noise Ratio 
(
unweighted)
........................................ 100dB 
The ratio of desired signal to noise signals in the output.  
Integrated reproduction is susceptible to noise because of the 
nature of the environment to reveal every detail.  This is why 
Perreaux engineers have designed the SX25i to maintain a low 
noise floor. 
Dynamic Headroom ............................................................. >2.0dB 
This indicates the SX25i can provide more than enough extra 
power to cope with the sharpest musical transients.  Without 
adequate headroom, an amplifier can become unstable under 
clipping conditions.  Perreaux amplifiers are intrinsically stable 
under all dynamic conditions.