ASUS（エイスース） Essence III

Preamplifier, USB DAC and headphone amplifier

JAN/UPC：0886227533466
TEKWIND型番：ASU-XONAR_E3

・Native DSD (Direct Stream Digital) support
・Fully-balanced headphone amplifier -- capable of driving headphones in balanced or single-ended configuration
【主な特長】

・Remote-controlled, relay-based stepped attenuator - the ultimate volume control
・Ultra-low jitter via high-precision TCXO clock sources and asynchronous USB
・Independent power supplies for both left and right channels
・Separate boards for analog, digital and power circuitry to minimize interference
・True balanced design with dual mono AD 1955 DACs
・Premium AD 827SQ and MUSES 02 op-amps deliver profound audio experience
・Linear power supply with multi-rail toroidal transformer

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仕様（スペック）

周波数特性	45.1584MHz (for 44.1KHz sample rate), 49.152MHz (For 48KHz sample rate)
出力端子	1x 6.3 mm jack, 2x Mini XLR for Headphone out, 2x RCA, 2x XLR for Line out
入力端子	3x S/PDIF in (1x Optical (Toslink)/1x Coaxial / 1x AES-EBU), 2x AUX in

Audio
Interface
USB 2.0 high-speed
Audio
Performance
Output Signal-to-Noise Ratio (A-Weighted) (Front-out) :
117 dB
Output THD+N at 1kHz (Front-out) :
<0.0005 %(-105 dB)
Frequency Response (-3dB, 24bit/192KHz input) :
10 Hz to 48 KHz
Output/Input Full-Scale Voltage :
Balanced XLR Output : 4 Vrms ( Vp-p)
Line output (RCA, 3.5) : 2 Vrms ( Vp-p)
Headphone output : 7 Vrms ( Vp-p)
Balanced headphone output : 7 Vrms ( Vp-p)
Chipset
Audio Processor :C-Media 6632A High-Performance Sound Processor (Max. 192KHz/24bit)
Digital-
to-analog
Converter
(DAC)
AD 1955
Sample Rate
and
Resolution
Direct Digital Stream (DSD) Playback
Native conversion ( DSD 64/2.8MHz; DSD 128/5.6MHz);
Analog Playback Sample Rate and Resolution :
44.1K/48K/88.2K/96K/176.4K/192KHz @ 16bit/24bit
S/PDIF Digital Input :
44.1K/48K/88.2K/96K/176.4K/192KHz @ 16bit/24bit
ASIO 2.2 Driver Support :
44.1K/48K/88.2K/96K/176.4K/192KHz @ 16bit/24bit
Connectivity
Analog Output
1 x 6.3 mm jack (1/4") Headphone out
2 x RCA (Un-Balanced)
2 x XLR (Balanced)
2 x Mini XLR (Balance headphone out)
Digital
2 x S/PDIF in (1 x Optical (Toslink)/1 x Coaxial)
1 x AES/EBU input
2 x Aux in phono jacks
Operating
System
Windows® 8 , 32bit/64bit
Windows® 7 , 32bit/64bit
Windows® XP , 32bit/64bit
Mac OS X
Accessories
Remote control x 1
Audio Precision (AP) test report x 1
Ex-IrDA cable x 1
Quick start guide x 1
Driver CD x 1
RCA-to-RCA cable x 1
MiniXLR-to-XLR cable x 2
XLR-to-RCA cable x 1
Fuse x 2
Power cord x 1
6.3mm-to-3.5mm adapter x 1
USB cable x 1
Dimensions
322 x 228 x 71 mm ( L x W x H )
Note
Op-amps:
・ I/V:2 x AD827SQ(ceramics)
・ LPF:2 x AD827SQ(ceramics)
・ Buffer(XLR):2 x AD827SQ(ceramics)
・ DC servo(single-ended):2 x MUSES 02
・ DC servo(balanced):4 x OPA2227P

*Essence III supports OS X for playback only under USB Audio 2.0 (driver-free).

The product (electrical , electronic equipment, Mercury-containing button cell battery) should not be placed in municipal waste. Check local regulations for disposal of electronic products.

All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
PCB color and bundled software versions are subject to change without notice.
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