Bonsoir Claude,
Pas mal de choses intéressantes dans ce PDF JBL, notamment :
"Subwoofers are an integral part of cinema loudspeaker systems installed in mid and large size houses. In specifying them, the designer must take into account the reduced sensitivity of the ear to low frequency sounds. Figure 20 shows the Robinson-Dadson equal loudness contours. Note that, for a reference level of 85 dB at 1 kHz, frequencies in the range of 30 to 40 Hz will have to be reproduced 15 to 20 dB louder in order to be perceived at the same subjective level."
Il va donc être difficile de marier tes 416 8A avec ton sub car tu dois t'assurer d'envoyer vers ton sub un signal (< 55 Hz) de 20 dB supérieur à celui des tes 416 8A et en même temps ton sub est limité à 112 dB max de niveau sonore (donnée commerciale
). Cela veut dire que tes 416 8A seront à 90 dB quand ton sub sera au max (112 dB).
A lire aussi dans ce PDF ATC, le chapitre 5.3 page 15 (Bass Management Compromises), on y raconte des choses bizarres... J'ai cru comprendre qu'il faut éviter d'utiliser leur "Bass managment" avec des systèmes de HP de haute qualité
:
"As described above, Bass Management was devised for domestic use as a means of extracting more performance from cost-sensitive systems. However in high quality audio systems it should be avoided. The improvement in dynamic range that may be achieved with Bass Management is not without side effects and in high quality systems these side effects are significant. The reasons for avoiding its use in high quality systems, such as ATC systems, are these..."
Pas mal de choses intéressantes dans ce PDF JBL, notamment :
"Subwoofers are an integral part of cinema loudspeaker systems installed in mid and large size houses. In specifying them, the designer must take into account the reduced sensitivity of the ear to low frequency sounds. Figure 20 shows the Robinson-Dadson equal loudness contours. Note that, for a reference level of 85 dB at 1 kHz, frequencies in the range of 30 to 40 Hz will have to be reproduced 15 to 20 dB louder in order to be perceived at the same subjective level."
Il va donc être difficile de marier tes 416 8A avec ton sub car tu dois t'assurer d'envoyer vers ton sub un signal (< 55 Hz) de 20 dB supérieur à celui des tes 416 8A et en même temps ton sub est limité à 112 dB max de niveau sonore (donnée commerciale
). Cela veut dire que tes 416 8A seront à 90 dB quand ton sub sera au max (112 dB).A lire aussi dans ce PDF ATC, le chapitre 5.3 page 15 (Bass Management Compromises), on y raconte des choses bizarres... J'ai cru comprendre qu'il faut éviter d'utiliser leur "Bass managment" avec des systèmes de HP de haute qualité
:"As described above, Bass Management was devised for domestic use as a means of extracting more performance from cost-sensitive systems. However in high quality audio systems it should be avoided. The improvement in dynamic range that may be achieved with Bass Management is not without side effects and in high quality systems these side effects are significant. The reasons for avoiding its use in high quality systems, such as ATC systems, are these..."