Appendix 55
DR128 U
SER
G
UIDE
Technical Specifications
Headroom
+16dBu (+4dBu nominal operating level)
Max Output
+16dBu
Frequency Response
20Hz - 20kHz +/-1dB (+4dBu into 600 ohms)
THD
0.005% @ 1kHz typical
Dynamic Range
99 dB typical (Mic Input to Line Output)
Hum & Noise
<-80dB measured rms 22Hz to 22kHz bandwidth
Mic EIN
-127dB (150 Ohm source)
Crosstalk @1kHz
>80dB Adjacent Input Channels
Sampling Frequency
48kHz
A/D Converter
24-bit Sigma-Delta 128-times oversampling
D/A Converter
20-bit Sigma-Delta 128-times oversampling
Processing
24-bit linear
Mic Input Gain Control
external 42dB (60dB to 18dB) variable
Mic/Line Pad
22dB internal link
Line Input Gain Control
internal 12dB (-8dBu to +4dBu) variable
Line Output Gain Control
internal 12dB (-8dBu to +4dBu) variable
LCD Display
2 x 16 Character, backlit
Tri-colour Programmable
Signal levels Green On at –36dBFS
LED indicators
Red On at –6dBFS
Function Keys
12 Programmable as Unused, Level controls or Patch changes
Front Panel Meters
12 Programmable as Signal Meters or Status Indicators
RS232
9 way female D-Type, unbalanced 57.6 kBaud
Remote Switch Inputs
9 way female D-Type, 8 opto-isolated, programmable
Patch Memories
16 internal
Battery Operation
+24V DC +/-15% @ 3.5 Amps maximum
Mains Settings
100 VAC Fuse: T1.6A
120 VAC Fuse: T1.6A
220 VAC Fuse: T630mA
230 VAC Fuse: T630mA
Power Consumption
70 VA maximum
Weight
Packed 10 kg Unpacked 9.5 kg
Dimensions
482 x 380 x 89mm (rack mounting brackets fitted)
Options
DSPx DSP Expander
DSPd Delay Expander
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