16
TD-000347-00-B
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
1 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)”
specifi cations). 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.
2 Requires purchase of I/O cards.
3 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.
4 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-
amplifi ers 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
Infi nite attenuation (via digital mute)
Infi nite attenuation (via digital mute)
Infi nite 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-confi gurable 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
