16
TD-000347-00-A
Core 500i
Core 250i
Accessories Included
6 ft UL/CSA/IEC line cord •Rubber feet • User Manual • Software
CD • Optional audio I/O ship kit
6 ft UL/CSA/IEC line cord •Rubber feet • User Manual • Software
CD • Optional audio I/O ship kit
2 The maximum number of local channels a Core can have is 128 in and 128 out (64 in and 64 out). Each card has its own limitations (see the “I/O Cards (Mic/Line In, Line Out)”
specifications). You can mix types, directions, and number of I/O channels; the combination dictates the maximum number of channels. For example, if you used all 4 channels of a Line In
card, all input and output channels of 2 AES cards, you now have used 12 input channels, and 8 output channels, leaving 116 input channels, and 120 output channels to use with other cards.
3 Requires purchase of I/O cards.
4 Each CobraNet card has up to 32 input channels, and up to 32 output channels. You can reach 256 (128) CobraNet channels with 4 (2) cards or, up to 8 cards.
5 AES3 cards have four input channels, and four output channels per card.
I/O Cards (Mic/Line In, Line Out)
Mic/Line Input CIML4
High-Performance Mic/Line
Input CIML4-HP
Line Output COL4
Description
Four channels of microphone / line-level
analog audio input with 48V phantom
power
Four channels of microphone / line-level
analog audio input with 48V phantom
power and high performance pre-
amplifiers and A/D converters
Four channels of balanced, line-level
analog output
Performance
Dynamic Range Unweighted
Dynamic Range A-weighted
> 105 dB
> 108 dB
> 112 dB
> 115 dB
> 112 dB
> 115 dB
Distortion 20 Hz – 20 kHz +4 dBu (nominal input)
Distortion 20 Hz – 20 kHz 2 dB below clip (max)
< 0.009% THD+N
< 0.08% THD+N
< 0.004% THD+N
< 0.06% THD+N
—
< 0.009% THD+N
Crosstalk 20 Hz – 20 kHz
Maximum
Typical
> 90 dB
> 110 dB
> 90 dB
> 110 dB
> 75 dB
> 110 dB
Frequency Response 20 Hz – 20 kHz (max)
Frequency Response 20 Hz – 20 kHz (typ)
± 0.5 dB
± 0.2 dB
± 0.4 dB
± 0.2 dB
± 0.4 dB
± 0.2 dB
Input Impedance
Balanced (nominal)
Unbalanced (nominal)
10 k ohms
10 k ohms
10 k ohms
10 k ohms
—
—
Common Mode Rejection 20 Hz – 20 kHz (max)
Common Mode Rejection 20 Hz – 20 kHz (typ)
> 40 dB
> 50 dB
> 47 dB
> 50 dB
—
—
Max Input Level
0.123, 2.25, 8.70, 17.35 Vrms
-16, 10, 21, 27 dBu
-18.2, 7.04, 18.8, 24.78 dBv
(4 selections)
1.23 mVrms to 17.35 Vrms
-56 to 27 dBu
-58.2 to 24.8 dBv
(continuously variable)
—
—
—
Mute
Infinite attenuation (via digital mute)
Infinite attenuation (via digital mute)
Infinite attenuation (via
electromechanical relays)
Audio Converters
Analog to Digital Conversion (ADCs)
Digital to Analog Conversion (DACs)
24-bit delta-sigma at 48 kHz
—
24-bit delta-sigma at 48 kHz
—
—
24-bit delta-sigma at 48 kHz
Group Delay
< 13 Samples (
≈
271 µs) at 48 kHz
< 13 Samples (
≈
271 µs) at 48 kHz
< 10 Samples (
≈
196 µs) at 48 kHz
Connectors
Four 3-terminal Euro-style
Four 3-terminal Euro-style
Four 3-terminal Euro-style
User-configurable Options (software enabled)
Phantom Power
+48 V phantom power (IEC 1938 [1996]) +48 V phantom power (IEC 1938 [1996]) —
Output Trim
Vrms (max)
dBu (max)
dBv (max)
—
—
—
—
—
—
8.7 V
21 dBu
18.8 dBv
