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Appendix c: technical info, Specifi cations (preliminary), Digital x bus – MACKIE DIGITALXBUS X.200 User Manual

Page 80

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80

X.200

Digital X Bus

Appendix C: Technical Info

Specifi cations (preliminary)

(All specifi cations are subject to change without notice.
All measurements were calculated between 44.1 kHz
and 96 kHz sampling frequencies. For these preliminary
specifi cations, no measurements were calculated for
192 kHz sampling rate.)

Dynamic Range (maximum signal level to noise level)

Dynamic range measurements are identical for all
Option Cards
22 Hz to 22 kHz @ 48 kHz SR FS
22 Hz to 40 kHz @ 96 kHz SR FS

Analog In to Digital Out

111 dB @ 48 kHz

110 dB @ 96 kHz

Digital In to Analog Out

108 dB @ 48 kHz

108 dB @ 96 kHz

Analog In to Analog Out

108 dB @ 48 kHz

106 dB @ 96 kHz

THD+N

Measured from analog channel input to analog direct output

<0.02%, 20 Hz to 20 kHz @ +14 dBu (48 kHz SR,
measurement BW = 10 Hz to 40 kHz)

<0.02%, 20 Hz to 40 kHz @ +14 dBu (96 kHz SR,
measurement BW = 10 Hz to 80 kHz)

Crosstalk

Better than –80 dB @ 1 kHz (adjacent input channels)

Microphone Inputs

Measured @ 20 Hz to 20 kHz bandwidth, maximum input gain
Rs = 150 ohms
Input pad = Off

Microphone Input Sensitivity: –75 dBu

E.I.N:

–127

dBu

Latency

Channel processing enabled/disabled does not affect latency
measurement.
All analog I/O measurements are the same for any analog con-
nection on any Card.
All digital I/O measurements are the same for any digital con-
nection on any Card.

@ 44.1 kHz – 48 kHz SR

Mic/Line In to Line Out:

246 samples (± 2 samples)

Mic/Line In to Mix Bus Out:

256 samples (± 2 samples)

Digital In to Digital Out:

187.5 samples (± 2 samples)

AES Input with SRC enabled:
+139

samples

@ 88.2kHz - 96kHz

Mic/Line In to Direct Line Out:

426 samples (± 2 samples)

Mic/Line In to Mix Bus Out:

434 samples (± 2 samples)

Any AES Input to any AES Output:

508 samples (± 2 samples)

AES Input with SRC engaged:
+139

samples

Analog Input Sensitivity

All input sensitivity measurements are within ±0.2 dB

LINE CARD INPUT
1 kHz tone with 150 ohm source

With a +4dBu input reference:

0 dBFS = +24.3 dBu

With a –10 dBV input reference:

0 dBFS = +11.0 dBV

MIC/LINE 4 OR MIC/LINE 8 MIC INPUT
1 kHz tone with 40 ohm source

At 0 dB input gain with –10 dB pad engaged:

0 dBFS = +24.9 dBu

At 0dB input gain without –10 dB pad:

0 dBFS = +14.8 dBu

At maximum gain (+65 dB):

0 dBFS = –50.9 dBu

MIC/LINE 4 LINE INPUT
1 kHz tone with 150 ohm source

With a +4 dBu input reference:

0 dBFS = +24.1 dBu

With a –10 dBV input reference:

0 dBFS = +10.8 dBV

MIC/LINE 8 LINE INPUT
1 kHz tone with 150 ohm source

At 0 dB input gain with –10 dB pad engaged:

0 dBFS = +25.7 dBu

At 0dB input gain without –10 dB pad:

0 dBFS = +15.7 dBu

At maximum gain (+65 dB):

0 dBFS = –50.0 dBu