TASCAM - DR-680 - AD/DA Convertor
LINDOS AUDIO SEQUENCE TEST TASCAM - DR-680 - AD/DA Convertor
SOURCE MS20 V1.3 Flash Recorder 6-track - file playback
29-Nov-11 09:03 PM


FREQUENCY RESPONSE @0dB [u]
20Hz -1.12 -1.12
31Hz -0.50 -0.37
40Hz -0.25 -0.12
50Hz -0.25 -0.12
100Hz 0.00 0.00
315Hz 0.00 0.00
1k0 0.00 0.00
6k3 0.00 +0.12
10k0 0.00 +0.12
12k5 0.00 +0.12
14k0 0.00 0.00
16k0 -0.12 0.00
20k0 -0.50 -0.50
25k0 -6.75 -6.75
LEVEL VS LEVEL [h]
TEST LEVEL OUT 1kHz [t]
TL dB -08.69 -08.60
DELms
NOISE ITU-468 Q-Pk REL [n]
WTD -69.51 -68.94
DIST RES 1kHz WTD REL [r]/q
-20dB -34.10 -36.30
0dB -54.29 -55.80
+8dB -65.86 -66.71
+12dB -70.51 -71.15
+15dB -72.61 -72.91
+18dB -68.56 -71.95
PHASE DIFFERENCE R-L [z]
3k15 00.00
10k0 08.00
15k0 06.00


This result was obtained by playing the recorded file on a Western Digital media player. Note the anomaly in the high distortion at -20dB, which is a bit of a mystery but presumably a problem with the WD player that only shows up when playing 24-bit files, as it does not appear when the same file is played back on the Tascam.

Input trim (gain settings) set to +2.0dB. Mix levels set to 100. Mix pans set L10 and R10. With the input levels set to 0dB it was not possible to make the level indicators go past the 0 mark even with +19dBu in. As set +17dBu in just crosses the 0 mark and clipping is at about +18.5dBu.

Battery life is short (8 AA cells required!). Provision for a 2-cell Sony LiIon battery on the rear would be ideal.

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