X Bus

Appendix C: Technical Info

Digital

80

Specifications (preliminary)

(All specifications are subject to change without notice. All measurements were calculated between 44.1 kHz and 96 kHz sampling frequencies. For these preliminary specifications, 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

X.200

Latency

Channel processing enabled/disabled does not affect latency measurement.

All analog I/O measurements are the same for any analog connection on any Card.

All digital I/O measurements are the same for any digital connection 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