Creative Emu 0204 Manual

							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 
						

							Index
28E-MU Systems