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Libby

DACs/Headphone Amplifier

Libby is a Class-A Headphone Amplifier with DAC function. Analog input is sampled through the high-precise ADC chip as PCM1803A then resampled to the high-quality DAC Chip as PCM1793 to be an analog signal to output. Using receiver chip of TI-DIR9001 which has the function of Low-Jitter Recovered System Clock can isolate the noise of digital original noise. In addition, Libby has 5 selections of resampling frequency from 44.1kHz to 192K for the users to choose its ideals and appropriate frequency of the sound. Adopting high-quality volume control chip as PGA2311 can not only reduce the distortion of the sound but also make the lowest differences of synchronous gain of right and left channels. Appearance of Libby with Black and Silver Colors show the main brand image of FSA-Noble、Steady、Positive that always deliveries the high quality sound for the consumers simply and naturally.



  • Specification
  • Packing/Usage
  • Review
  • * Amplifier Structure: High current / swing output amplifier, four step bias control
    * Power Structure: High precision linear voltage regulator (Analog system), High efficiency / frequency voltage regulator (Digital system)
    * Power Mode: Stand by and Power on mode, provided with main power switch to shut down
    * Input Select: Line in / Coaxial / Optical / AES-EBU / USB
    * Headphone impedance: 16ohm to 600ohm
    * Circuit Protect: Output short / system over current protect
    * Characteristic: Using OP275 and high current power transistor to build high quality headphone amplifier
    * Frequency Control: Adjustable from 44.1kHz to 192kHz
    * Bit Length Control: Adjustable 16-bit or 24-bit data length
    * Mute Control: Provided directly mute headphone without rotating the volume knob
    * USB Support Format: 16-bit, 32kHz / 44.1kHz / 48kHz
    * SPDIF / AES-EBU Support Format: 24-bit, 96kHz (MAX)

    Chips

    * Power Amp: TI - TAS5706
    * Processing Chip: TI – TAS5086
    * ADC Chip: TI – PCM1803A
    * USB Chip: TI – PCM2704
    * SRC Chip: TI – SRC4193
    * Receive : TI - DIR9001

    Connectivity

    * USB interface (USB 1.1)
    * Digital Input:
    1 of coaxial jack
    1 of optical jack
    1 of XLR jack
    * Line Input: 2 of RCA jack
    * Line Output: 1 of 6.4mm Headphone jack (stereo)

    System Requirements

    * Using in any equipment with Line-out or Pre-out function
    * Intel® Pentium® 2, Celeron® 800MHz or higher computer system
    * Microsoft® Windows 2000® (Service Pack 4) or Windows® XP (Service Pack 1)
    * 128MB RAM
    * Available USB port
  • Packing

    * Libby
    * 3P Power Cable
    * RCA wire
    * USB wire
    * User manual
    * Warranty card

    Weight/Size

    Usage


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