Specifications

2.73

Applications Manual

Revision 1.11Prism Sound dScope Series III

Specification

The distortion should be less than 3% THD+N for all conditions measured.

5.2.1.12 Low Frequency Overload

dScope Configuration:

Low Frequency Overload Track 70-73.dsc

Track Number:

70-73

Corresponding AP Test File:

N/A

Duration:

30 sec (each track)

Test Signal Description:

30Hz; 0dBFS (tracks 70, 71 & 72)

30Hz; -3dBFS (track 73)

Channels:

L, C, R, Ls, Rs

Description

This test ensures correct handling of bass redirection, which involves summation of signals.

Method

Four tracks containing 30Hz sweeps are played in order of descending overload probability. For each

Sweep, the Sub is firstly measured with all other channels set to "small", and then the Left and Right