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Creative Emu 0204 Manual

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    							Technical Specifications
    0204 USB Owner’s Manual21
    TECHNICAL SPECIFICATIONS
    General
    • Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192kHz from internal crystal with no 
    sample rate conversion *
    • Bit Depth: 24-bit I/O, 32-bit processing
    • USB 2.0 Hi-Speed
    • Full 24-bit resolution at all sample rates
    • 2 in/4 out channels 
    • Zero-latency direct hardware monitoring 
    (Direct monitor on channels 1/2 only at 176.4/192kHz sample rates)
    • Windows drivers: ASIO2 and WDM
    • Macintosh driver: Apple CoreAudio
    • Anti-Pop speaker protection minimizes noise during power on/off
    • Ultra-low jitter clock subsystem: 
    						
    							Technical Specifications
    22E-MU Systems
    Headphone Amplifier
    • Type: Class-A power amplifier
    • D/A converter: AK4396 
    • Gain Range: 60dB
    • Maximum Output Power: 16mW
    • Output impedance: 22ohms
    • Frequency Response (20Hz-20kHz): +0.02/-0.08dB
    • Dynamic Range (A-weighted): 117dB
    • Signal-to-Noise Ratio (A-weighted): 117dB
    • THD+N (1kHz, max gain): 300ohm load: -101.9dB (.0008%)
    • Stereo Crosstalk (1kHz at -1dBFS, 300 ohm load): -107dB
    Synchronization
    • Internal crystal sync at 44.1, 48, 88.2, 96, 176.4, 192kHz*
    Dimensions/We i g h t :
    • Weight: 0.94 lb / 0.43 kg
    • Dimensions:
    W: 6.5”   H: 2.0”   L: 5.5”
    W: 165 mm  H: 50.8 mm   L: 140 mm
    * Macintosh operation up to 96kHz only at this time – check www.emu.com for updates 
    						
    							Adapter Cables
    0204 USB Owner’s Manual23
    ADAPTER CABLES
    1/8” Headphone to 1/4” Headphone Adapter
    TIP
    RING
    Stereo Headphone to 2 x 1/4” Jack Splitter Cable
    This type of adapter allows you to use the Headphone jack as another pair of line outputs. 
    The tip and ring of the headphone plug are split off into separate outputs. 
    						
    							Declaration of Conformity
    24E-MU Systems
    DECLARATION OF CONFORMITY
    Trade Name:E-MU Systems
    Model No.:EM8740A
    Responsible Party:E-MU Systems
    Address:1500 Green Hills Road
    Scotts Valley, CA 95066 U.S.A.
    This device complies with Part 15 of the FCC rules. Operation is subject to the 
    following two conditions: (1) This device may not cause harmful interference, and 
    (2) this device must accept any interference received, including interference that 
    may cause undesired operation.
    CAUTION
    You are cautioned that any changes or modifications not expressly approved in 
    this manual could void your authority to operate this equipment.
    Note:
    This equipment has been tested and found to comply with the limits for a Class B 
    digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to 
    provide reasonable protection against harmful interference in a residential instal-
    lation. This equipment generates, uses, and can radiate radio frequency energy 
    and, if not installed and used in accordance with the instructions, may cause 
    harmful interference to radio communications. However, there is no guarantee 
    that interference to radio or television reception, which can be determined by 
    turning the equipment off and on, the user is encouraged to try to correct the inter-
    ference by one or more of the following measures:
    • Reorient or relocate the receiving antenna.
    • Increase the separation between the equipment and receiver.
    • Connect the equipment into an outlet on a circuit different from that to 
    which the receiver is connected.
    • Consult the dealer or an experienced radio/TV technician for help.
    The supplied interface cables must be used with the equipment in order to comply 
    with the limits for a digital device pursuant to Subpart B of Part 15 of FCC Rules. 
    						
    							Declaration of Conformity
    0204 USB Owner’s Manual25
    Compliance Information
    United States Compliance Information
    FCC Part 15 Subpart B Class B using:
    CISPR 22 (1997) Class B
    ANSI C63.4 (2003) method
    FCC Site No. 958979
    Canada Compliance Information
    ICES-0003 Class B using:
    CISPR 22 (1997) Class B
    ANSI C63.4 (2003) method
    Industry of Canada File No. IC 5933
    European Union Compliance Information
    EN55024 (1998 w/A1:01 & A2:03)
    EN55022 (1998) Class B
    Australia/New Zealand Compliance Information
    AS/NZS CISPR 22 (2002) Class B using:
    EN55022 (1998) Class B
    Japan Compliance Information
    VCCI (April 2005) Class B using:
    CISPR 22 (1997) Class B
    ANSI C63.4 (2003) method
    VCCI Acceptance Nos. R-2160 & C-2332
    Attention for the Customers in Europe
    This product has been tested and found compliant with the limits set out in the 
    EMC Directive for using connection cables shorter than 3 meters (9.8 feet).
    Notice
    If static electricity or electromagnetism causes data transfer to discontinue midway 
    (fail), restart the application or disconnect and connect the USB cable again. 
    						
    							0204 Block Diagram
    26E-MU Systems
    0204 BLOCK DIAGRAM
    12
    1
    1
    2
    3
    43/4 not available at 176k/192k sample rates
    (channel
    1/2 or 3/4)(chan.1)
    (chan.2) 2 3
    Mic InGainMeter
    Bal/Unbal
    Line/Instr In
    Bal/Unbal
    Line/Instr InGround
    Lift
    Ground
    Lift
    USB
    Playback
    (computer)Mono/
    Stereo/
    Off
    Direct
    Monitor
    Level
    Headphone
    SourceHeadphone
    Volume
    Meter
    RIGHT LEFT
    MAIN L
    MAIN R
    Phones
    Out
    Gain
    DACDACDAC
    USB
    Record
    (computer)
    0204 USB BLOCK DIAGRAM
    ADC
    ADC
    DAC
    (Select from E-MU
    USB Control Panel)
    5V
    Electret
    Mic In 
    						
    							Index
    0204 USB 2.0 Owner’s Manual27
    INDEX
    A
    Acoustica Mixcraft LE 4
      18
    Adapter Cables
      23
    ASIO Buffer Size
      19
    B
    Block Diagram
      26
    C
    Clip Indicators
      13
    Computer Requirements
      7
    Connection Diagram
      12,  14
    Control Panel
      15,  16
    D
    Device Select, E-Control
      15
    Direct Monitor Controls
      13
    Direct Monitoring
      17
    Direct Monitoring vs Software Monitoring
      17
    E
    E-Control Application
      15
    G
    Gain Controls
      13
    Ground Lift Switches
      14,  19
    Ground Loops
      19
    H
    Headphone Level Control
      13
    Headphone Mix, creating
      16
    Headphone Output
      14
    Headphone Source
      16
    Hi-Z Input
      14
    I
    Inputs
      14
    Internet References
      20
    L
    Latency
      17
    Lost Communication
      19M
    Main Output Volume Control
      14
    Monitoring, direct vs software
      17
    O
    Output Volume Control
      14
    Outputs 3/4
      16
    P
    Package Contents
      8
    Pops & Crackles
      19
    R
    Recording Software
      18
    S
    Signal Level Indicators
      13
    Signal Routing Diagram
      26
    Simultaneous WDM/ASIO/AC-3 Playback
      20
    Skin, selecting
      15
    Software Installation
    Mac OSX
      9
    Windows
      8
    T
    Technical Specifications
      21,  23
    Testing Your Interface
      18
    Troubleshooting
      19
    U
    Uninstalling Drivers & App
      8,  11
    USB 1.1 Warning Message
      20
    USB Jack
      14
    V
    Volume Control, controlling with computer
      14
    W
    WDM/ASIO/AC-3 Playback
      20
    Windows Logo Testing Note
      8
    Windows Media Player, no audio
      19 
    						
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