test - DR-680 - AD/DA Convertor
LINDOS AUDIO SEQUENCE TEST test - DR-680 - AD/DA Convertor
SOURCE MS20 V1.3 24-bit 48kHz in-out
29-Nov-11 08:43 PM TOLERANCE Lindos GradeA PASSED


FREQUENCY RESPONSE @0dB [u]
20Hz -0.75 -0.88 ±2
31Hz -0.25 -0.25 ±1
40Hz -0.37 -0.38 ±1
50Hz -0.12 -0.13 ±1
100Hz -0.12 -0.13 ±1
315Hz 0.00 -0.13 ±1
1k0 0.00 -0.01 ±1
6k3 0.00 -0.01 ±1
10k0 +0.12 +0.13 ±1
12k5 +0.12 +0.13 ±1
14k0 +0.12 +0.13 ±1
16k0 +0.12 -0.01 ±1
20k0 -0.25 -0.38 ±2
25k0 -12.87 -13.13
LEVEL VS LEVEL [h]
TEST LEVEL OUT 1kHz [t]
TL dB -04.32 -04.22
DELms 0000
NOISE ITU-468 Q-Pk REL [n]
WTD -69.51 -69.22 -60
DIST RES 1kHz WTD REL [r]/q
-20dB -49.32 -49.26 -40
0dB -67.77 -67.39 -45
+8dB -71.54 -71.53 -45
+12dB -72.74 -73.03 -45
+15dB -73.33 -73.28 -45
+18dB -69.66 -72.33 -45
PHASE DIFFERENCE R-L [z]
3k15 00.00 ±10
10k0 -02.00 ±20
15k0 00.00 ±30


Excellent results - this is the only flash recorder tested to achieve even 16-bit performance (-68dB noise with +18dB FS).

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. 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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"If someone is looking for an accurate, reliable, economical, easy to use test system for audio quality test, Lindos is the answer for it.We have been using many of this unit (LA100) in our broadcast TV and FM Radio maintenance works and will continue using is for many years.

It is surely the best test gear for line, transmitter, amplifiers and other audio related equipment tests.We consider it a must have unit for out broadcast TV and FM Radio maintenance team."

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