Creative Professional E-MU 1820
- Автор темы slade
- Дата начала
Specifications: 1820 System
GENERAL
Sample Rates
44.1 kHz. 48 kHz, 96 kHz, 192 kHz from internal crystal
Externally supplied clock from S/PDIF, ADAT
(or word clock with optional Sync Card)
Bit Depth
16 or 24-bits
Hardware DSP
100MIPs custom audio DSP.
PCI Bus-Mastering DMA subsystem reduces CPU usage.
Zero-latency direct hardware monitoring with effects
1394 Firewire Core - Texas Instruments
Converters & OpAmps
ADC - PCM1804 (TI/Burr-Brown)
DAC - CS4392 (Cirrus Logic)
OpAmp - NJM2068M (JRC)
AudioDock Power Use
1.1A @ +12V 13W.
ANALOG LINE INPUTS
Type
Servo-balanced, DC-coupled, low-noise input circuitry
Level (software selectable)
Professional: +4 dBu nominal, 20 dBu maximum (balanced)
Consumer: -10 dBV nominal, 6 dBV maximum (unbalanced)
Frequency Response
+0.0/-0.2 dB, 20 Hz - 20 kHz
THD + N
-102 dB (.0008%) 1kHz at -1 dBFS
SNR
111 dB (A-weighted)
Dynamic Range
111 dB (A-weighted)
Channel Crosstalk
< -115 dB, (1 kHz signal at -1 dBFS)
Common-mode Rejection
> 40 dB at 60Hz
Input Impedance
10K ohm
ANALOG LINE OUTPUTS
Type
Balanced, low-noise, 2-pole low-pass differential filter
Level (software selectable)
Professional: +4dBu nominal, 20dBu (balanced)
Consumer: -10dBV nominal, 6dBV maximum (unbalanced)
Frequency Response
+0.0/-0.8 dB, 20 Hz - 20 kHz
THD + N
-98 dB (.0006%) 1kHz signal at -1dBFS
SNR
112 dB (A-weighted)
Dynamic Range
112 dB (A-weighted)
Stereo Crosstalk
< -120 dB, 1kHz
Output Impedance
560 ohms
MIC PREAMP/LINE INPUT
Type
TFPro™ combination microphone preamp and line input
Frequency Response
+0.8/-0.1 dB, 20 Hz - 20kHz
Stereo Crosstalk
< 120 dB, 1kHz
LINE INPUT
Gain Range:
-12 to +28 dB
Max Level:
-17 dbV (19.2 dBu)
THD+N:
-94 dB (.002%), 1 kHz at -1 dBFS
Dynamic Range:
100 dB (A-weighted, min. gain)
SNR:
100 dB (A-weighted, min. gain)
Input Impedance:
10K ohm
CMRR:
> 40 dB (60Hz)
MICROPHONE PREAMP
Gain Range:
-10 to +50 dB
Max Level:
-12 dbV (-9.8 dBu)
THD+N:
-95 dB (.0018%), 1 kHz at -1 dBFS
SNR:
100 dB (A-weighted, min. gain)
Input Impedance:
330 ohm
CMRR:
> 80 dB (60Hz)
HEADPHONES
Frequency Response:
+0.0/-0.35 dB, 20 Hz - 20 kHz
THD+N: (1 kHz, max. level)
33 ohm load: -70 dB (0.032%)
600 ohm load: -85 dB (0.006%)
SNR:
112 dB (A-weighted)
Dynamic Range:
112 dB (A-weighted)
Stereo Crosstalk:
< -100 dB (1kHz at -1 dBFS, 600 ohm load)
Max Output Power:
500 mW
Output Impedance:
22 ohms
Gain Range:
85 dB
Specifications: 1820 System
TURNTABLE INPUT
RIAA equalized phono input
Frequency Response:
+/-0.5 dB, 50 Hz - 20 kHz
THD+N:
-76 dB (.015%) (1 kHz, 10 mV RMS unbalanced input)
SNR:
90 dB (1kHz, 10 mV RMS unbalanced input)
Stereo Crosstalk:
< -80 dB (1kHz at -1 dBFS)
Maximum Level:
Professional: 80 mV RMS
Consumer: 20 mV RMS
Input Capacitance:
220 pF
Input Impedance:
47K ohm
DIGITAL I/O
S/PDIF
• 2 in/2 out coaxial (transformer coupled)
• 2 in/3 out optical (software switchable with ADAT)
• AES/EBU or S/PDIF (switchable under software control)
ADAT
• 8 channels, 24-bit @ 44.1/48 kHz
• 4 channels, 24-bit @ 96 kHz
• 2 channels, 24-bit @ 192 kHz
Firewire
400 IEEE 1394a port (6-pin)
Compatible with DV cameras or HDs
MIDI
2 MIDI in, 2 MIDI out
SYNCHRONIZATION
Internal Crystal Sync:
44.1kHz, 48 kHz, 96 kHz, 192 kHz
ADAT, S/PDIF (optical or coaxial)
RMS JITTER @ 44.1K
(Measured via Audio Precision 2)
SRSync SourceRMS jitter in picoseconds
44.1kHz Internal Crystal 596ps
44.1 kHz Optical Input 795ps
GENERAL
Sample Rates
44.1 kHz. 48 kHz, 96 kHz, 192 kHz from internal crystal
Externally supplied clock from S/PDIF, ADAT
(or word clock with optional Sync Card)
Bit Depth
16 or 24-bits
Hardware DSP
100MIPs custom audio DSP.
PCI Bus-Mastering DMA subsystem reduces CPU usage.
Zero-latency direct hardware monitoring with effects
1394 Firewire Core - Texas Instruments
Converters & OpAmps
ADC - PCM1804 (TI/Burr-Brown)
DAC - CS4392 (Cirrus Logic)
OpAmp - NJM2068M (JRC)
AudioDock Power Use
1.1A @ +12V 13W.
ANALOG LINE INPUTS
Type
Servo-balanced, DC-coupled, low-noise input circuitry
Level (software selectable)
Professional: +4 dBu nominal, 20 dBu maximum (balanced)
Consumer: -10 dBV nominal, 6 dBV maximum (unbalanced)
Frequency Response
+0.0/-0.2 dB, 20 Hz - 20 kHz
THD + N
-102 dB (.0008%) 1kHz at -1 dBFS
SNR
111 dB (A-weighted)
Dynamic Range
111 dB (A-weighted)
Channel Crosstalk
< -115 dB, (1 kHz signal at -1 dBFS)
Common-mode Rejection
> 40 dB at 60Hz
Input Impedance
10K ohm
ANALOG LINE OUTPUTS
Type
Balanced, low-noise, 2-pole low-pass differential filter
Level (software selectable)
Professional: +4dBu nominal, 20dBu (balanced)
Consumer: -10dBV nominal, 6dBV maximum (unbalanced)
Frequency Response
+0.0/-0.8 dB, 20 Hz - 20 kHz
THD + N
-98 dB (.0006%) 1kHz signal at -1dBFS
SNR
112 dB (A-weighted)
Dynamic Range
112 dB (A-weighted)
Stereo Crosstalk
< -120 dB, 1kHz
Output Impedance
560 ohms
MIC PREAMP/LINE INPUT
Type
TFPro™ combination microphone preamp and line input
Frequency Response
+0.8/-0.1 dB, 20 Hz - 20kHz
Stereo Crosstalk
< 120 dB, 1kHz
LINE INPUT
Gain Range:
-12 to +28 dB
Max Level:
-17 dbV (19.2 dBu)
THD+N:
-94 dB (.002%), 1 kHz at -1 dBFS
Dynamic Range:
100 dB (A-weighted, min. gain)
SNR:
100 dB (A-weighted, min. gain)
Input Impedance:
10K ohm
CMRR:
> 40 dB (60Hz)
MICROPHONE PREAMP
Gain Range:
-10 to +50 dB
Max Level:
-12 dbV (-9.8 dBu)
THD+N:
-95 dB (.0018%), 1 kHz at -1 dBFS
SNR:
100 dB (A-weighted, min. gain)
Input Impedance:
330 ohm
CMRR:
> 80 dB (60Hz)
HEADPHONES
Frequency Response:
+0.0/-0.35 dB, 20 Hz - 20 kHz
THD+N: (1 kHz, max. level)
33 ohm load: -70 dB (0.032%)
600 ohm load: -85 dB (0.006%)
SNR:
112 dB (A-weighted)
Dynamic Range:
112 dB (A-weighted)
Stereo Crosstalk:
< -100 dB (1kHz at -1 dBFS, 600 ohm load)
Max Output Power:
500 mW
Output Impedance:
22 ohms
Gain Range:
85 dB
Specifications: 1820 System
TURNTABLE INPUT
RIAA equalized phono input
Frequency Response:
+/-0.5 dB, 50 Hz - 20 kHz
THD+N:
-76 dB (.015%) (1 kHz, 10 mV RMS unbalanced input)
SNR:
90 dB (1kHz, 10 mV RMS unbalanced input)
Stereo Crosstalk:
< -80 dB (1kHz at -1 dBFS)
Maximum Level:
Professional: 80 mV RMS
Consumer: 20 mV RMS
Input Capacitance:
220 pF
Input Impedance:
47K ohm
DIGITAL I/O
S/PDIF
• 2 in/2 out coaxial (transformer coupled)
• 2 in/3 out optical (software switchable with ADAT)
• AES/EBU or S/PDIF (switchable under software control)
ADAT
• 8 channels, 24-bit @ 44.1/48 kHz
• 4 channels, 24-bit @ 96 kHz
• 2 channels, 24-bit @ 192 kHz
Firewire
400 IEEE 1394a port (6-pin)
Compatible with DV cameras or HDs
MIDI
2 MIDI in, 2 MIDI out
SYNCHRONIZATION
Internal Crystal Sync:
44.1kHz, 48 kHz, 96 kHz, 192 kHz
ADAT, S/PDIF (optical or coaxial)
RMS JITTER @ 44.1K
(Measured via Audio Precision 2)
SRSync SourceRMS jitter in picoseconds
44.1kHz Internal Crystal 596ps
44.1 kHz Optical Input 795ps