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Hercules Fortissimo III 7.1 and Digifire 7.1

Digifire 7.1: Input And Output Quality, Continued

The following results show the quality of Digifire 7.1 recording via the line-in/Mike-in stereo input. The input was of course configured in line-in. The test line was: DMX 6Fire 24/96 Stereo Out - Digifire 7.1 line in.

Right Mark Audio Analyser Results
Bandwidth (40 Hz to 15 kHz), dB:+0.02, -0.16Very good
Signal to noise ratio, dB (A):-79.6Average
Dynamic range, dB (A):67.6Average
Total harmonic distortion, %:0.011Good
Intermodular distortion, %:0.045Good
Stereo crosstalk, dB:-75.0Very good

Digifire 7.1 also comes out pretty well at all levels in recording via the analog stereo input. The signal-to-noise ratio is not top rate but average at -79.6 dB.

BandwidthReponse
From 20 Hz to 20 kHz, dB-0.55, +0.02
From 40 Hz to 15 kHz, dB-0.16, +0.02

ParameterLeftRight
RMS power, dB:-67.2-78.6
RMS power (A-weighted), dB:-71.1-79.6
Peak level, dB FS:-51.6-66.2
DC offset, %:-0.00-0.00

ParameterLeftRight
Dynamic range, dB:+63.4+75.4
Dynamic range (A-weighted), dB:+67.6+77.2
DC offset, %:-0.00-0.00

ParameterLeftRight
THD, %:0.0150.011
THD + Noise, %:0.0730.024
THD + Noise (A-weighted), %:0.0570.023

ParameterLeftRight
IMD + Noise, %:0.2050.045
IMD + Noise (A-weighted), %:0.1580.043

ParameterG <- DG-> D
Crosstalk at 100 Hz, dB:-66-47
Crosstalk at 1 kHz, dB:-74-57
Crosstalk at 10 kHz, dB:-65-59