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Audigy 2 ZS audio card Audio Inputs:

Line-level analog Line input via stereo jack on rear bracket
Mono Microphone analog input via stereo jack on rear bracket
CD_IN line-level analog input via 4-pin Molex connector on card
AUX_IN line-level analog input via 4-pin Molex connector on card
TAD line-level analog input via 4-pin Molex connector on card
CD_SPDIF digital input via 2-pin Molex connector on card

Audio Outputs:

Digital Out via 4-pole 3.50 mm (1/8-inch) minijack on rear bracket
Three line-level analog outputs via 4-pole 3.50 mm (1/8-inch) minijacks on rear bracket: Front Left, Front Right, Rear Left, Rear Right, Side Right, Center, Subwoofer and Side Left channels
Stereo headphone (32-ohm load) support on Line Out 1
FireWire (IEEE 1394) Interfaces
2 x 5 pin internal FireWire (IEEE 1394) connector on card
6-pin FireWire (IEEE 1394) connector on rear bracket

General Specifications:

PCI Specification Version 2.1 compliant
Bus mastering reduces latency and speeds up system performance

Audigy 2 ZS Processor

Advanced hardware accelerated digital effects processing
32-bit digital processing, which maintains a 192 dB dynamic range
Patented 8-point interpolation that reduces distortion to inaudible levels
64-voice hardware wavetable synthesizer
Professional quality digital mixing and equalization
Versatile Audio Features
Playback of 64 audio channels, each at an arbitrary sample rate
32-bit mixing of all digital sources within Audigy 2 ZS's Digital Mixer
24-bit Analog-to-Digital conversion of analog inputs at 96 kHz sample rate
24-bit Digital-to-Analog conversion of digital sources at 96 kHz to analog 7.1 speaker output
24-bit Digital-to-Analog conversion of stereo digital sources at 192 kHz to stereo output
16-bit to 24-bit recording sampling rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48 and 96 kHz, including ASIO2 support at 16-bit 48 kHz resolution.

Professional Digital Audio Processing:

Supports Sony/Philips Digital Interface (SPDIF) format of up to 24-bit/96 kHz quality
SPDIF output at selectable sampling rate of 48 or 96 kHz
SPDIF output not available during playback of protected digital audio contents authored with DRM (Digital Rights Management) technology
Selectable 6-channel SPDIF output to matching digital speaker systems
Software switching of SPDIF Input-to-Output (bypass) to minimize cable connection hassle
Low latency multitrack recording with ASIO support
Flexible Mixer Control
Selectable input source or mixing of various audio sources for recording
Adjustable master volume control
Separate bass and treble control
Front and rear balance control
Muting and panning control for mixer sources

THX Certification:

Audigy 2 ZS has received the prestigious THX Multimedia Certification award, making it the perfect choice for PC audiophiles seeking the very best music and movie experiences.
Dolby Digital and Digital Surround EX Decoding
Decodes Dolby Digital Surround EX to 7.1 or 6.1 channels, or will pass through a compressed SPDIF bitstream to an external decoder
Bass redirection: enhances bass output to subwoofer for small satellite speaker systems
Crossover bass frequency (10-200 Hz): adjustable to standalone subwoofer units for desired bass level
Adjustable Center, Rear Center and LFE level control
Creative MultiSpeaker Surround (CMSS)
Multispeaker technology
Upmixes mono or stereo sources to 7.1 channels
Professional-quality panning and mixing algorithm

DTS-ES:

Support DTS decoding for 5.1 audio
Support DTS-CD playback and decoding for 5.1 audio
Support DTS-ES for 7.1/6.1 audio
DTS-ES Matrix 6.1 for decoding 5.1-channel soundtracks with a back surround channel matrix encoded into the left and right surround channel
DTS-ES Discrete 6.1 for 6.1 soundtracks mastered with a discrete back surround channel

EAX ADVANCED HD:

EAX ADVANCED HD brings a new level of performance, power, and flexibility to PC audio. The all-new EAX ADVANCED HD Game Audio Library takes in-game audio and acoustic simulation to a whole new level.These innovative technologies bring tremendous realism and total audio immersion to PC gaming:

Multi-EnvironmentTM technology renders multiple environment audio effects in real time.
Environment PanningTM makes it easy for gamers to track, with three-dimensional precision, the location and movement of sounds that usually represent enemies or team mates. This gives Audigy 2 ZS gamers a better advantage as they are more "attuned" to the game scenario.
Environment ReflectionsTM offers localization of early reflections and echoes.
Environment FilteringTM accurately simulates the propagation of sound in both open and closed environments.
Environment MorphingTM allows for seamless transition from one environment to the next.
EAX ADVANCED HD Music Technologies also assure sonic superiority, rich environment effects and music enhancement features such as Audio Clean-Up, Time Scaling and EAX ADVANCED HD audio effects.
Audio Clean-Up enables the removal of unwanted noise in a digital audio file.
Time Scaling speeds up and slows down music with no distortion.
EAX ADVANCED HD audio effects, developed especially for music listening, further enhance playback of songs.
EAX ADVANCED HD offers dramatically increased 3D audio performance and functionality. Delivering superior audio fidelity and sophisticated reverb effects, this unsurpassed digital entertainment experience is available only from the Audigy 2 ZS family of products.

FireWire (IEEE 1394) Compatibility:

Compliant to IEEE 1394a specification
Supports data rates of 100, 200, and 400 Mbps
Supports up to 63 FireWire (IEEE 1394) compatible devices in a daisy-chain configuration
Supplies up to 3 watts to FireWire (IEEE 1394) compatible devices