(Blue Plate, silvery white)
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Specification:
- Supported input of sound source
ˇ¤Digital USB signal input
ˇ¤Analog audio 3.5¦µ Line in
- S/N Ratio : Max to 93 dB
Stereo A/D converter: Max to 24bit / 96K Hz
- Loud Speaker output power
2 X 10 W into 8¦¸
2 X 12.5 W into 6¦¸
2 X 16 W into 4¦¸
- Digital 32W efficiency better than analog 70W efficiency.
Support OS : Win98SE / Win2000 / WinXP / Win Vista.
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Class D-˘ńDigital Sound Card will expand the use of its own Power PC, not like traditional analog to external multimedia speakers, and additional countries to overcome differences on regulations Voltage and different styles of plugs's restrictions.
In addition, the use of 12V power supplies, effective breakthrough USB speakers without external power. there will be no more than 2.5W limit. with 32W output figures can be more than traditional analog 60W Audio performance PC in recent years to cope with the development needs of the family multimedia center.
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Digital Revolution
------PC Digital Amplifier Sound Card
Type:ClassD-I card
Class D amplification is a PWM (Pulse Width Modulation).
similar to the motherboard switched power principle Digital frequency wave to the spacing of the output amplitude level simulation size. frequency amplitude were close, Conversely when it is reduced frequency low amplitude.
Omitted the traditional AB crystals expand planes make high-power models, the large transformer, super capacitor filter. Changed to a small capacitor and Switching Power as such small transformer replacement Energy can be made quickly and directly to the driver monomer. Therefore, the Class D amplifier at work is not easy to produce high fever, it may also remove the space for the cooling unit. That is a few hundreds kW Class D amplifier for the volume, than traditional power amplifier many small, low cost more. Coupled with the advantages - low heat, D amplifier is suitable for ultra-low noise Cypriots in a small space.
Overcome the traditional class AB power amplifier make all sorts of problems, there are so many new, high-efficiency amplifier design emerged.These new amplifiers are either designed to enhance the utilization of energy for the design focus, it is necessary to make imported electricity most of the monomer can be made to drive, with a view to resolving the traditional class AB amplifier circuit can not be a more efficient use of energy, and the need for large heat sinks to loss of power generated by high fever disperse the problem.
Class-A/AB & Class-D Amplify Architecture
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- Hi-Efficiency :
Refined class-D amplifier design produces more power while consumes less energy. The efficiency up to 90% outperforms
conventional class-A/B amplifiers. Low heat generation is not only environmental friendly, also excellent application in PCs.
For Example:
same 32W sound effect
Class-A/B Using Over 70 W power consumption
Class-D Using Around 35W power consumption
- Low Cost :
PC digital amplifier sound card generates high output power eliminate the needs for huge transformers,
big filter capacitors or heat sink.
It certainly offers an excellent price-performance ratio.
The Class-D cost is much less than Class-A/B when same sound effect ouput.
- Good Sound Quality:
There are two kinds of distortions in Traditional PC Audio
*First distortion:
Digital to Analog signal translation distortion
PC digital signal to Analog phone Jack Signal
*Second distortion:
C power noise & Hi-Frequency noise be amplified
External Amplifier or Active speaker will amplify this noise to cause second distortion
Our Class-D Amplifier Sound Card can avoid these distortions
PC Digital sound signal direct to Class-D sound card W/O any translation distortion
Our Amplifier sound card use PWM digital way to amplify directly
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