Here are the results given by Right Mark Audio Analyser for front stereo output quality with Fortissimo III 7.1 using the following test line: Fortissimo III 7.1 Stereo 1 out - DMX 6Fire 24/96 Line In.
Right Mark Audio Analyser Results
Bandwidth (40 Hz to 15 kHz), dB:
+0.02, -0.13
Very good
Signal to noise ratio, dB (A):
-81.2
Good
Dynamic range, dB (A):
78.4
Average
Total harmonic distortion, %:
0.0084
Very good
Intermodular distortion, %:
0.039
Good
Stereo crosstalk, dB:
-80.8
Very good
Like Digifire 7.1, Fortissimo III 7.1 gives good quality output which bodes well for playback. Bandwidth compliance is more than adequate and the signal-to-noise quite good enough for a card in this range. There are a few differences compared to the Digifire 7.1, notably with regard to the THD which is lower (so better) on the Fortissimo III 7.1.