ขออนุญาตเฮียขาย ADL GT40 Alpha (USB DAC, Photo Stage, USB ADC, Headphone Amplifier) สภาพเหมือนใหม่ 95%++

Features
- High performance 24bits/192kHz “VIA VT1736 “USB chip and 24bits/192kHz “Cirrus Logic CS4270” DAC /ADC chip
- Enjoy audio in high resolution at 24bits/192kHz surpassing conventional 16bit/44.1KHz standards
- Incorporates the most trusted driver in professional audio for 24bits/192kHz recording and playback
- External power supply: while a USB-powered device might be convenient, it won’t develop the power required for high resolution playback, so we designed the GT40α with an external power supply to solve the problem.
- Headphone Amplifier: It contains a high performance “Maxim MAX9722A” headphone amplifier with ample drive for good headphones
- Analog-to-Digital Converter: The GT40α sports a high-performance ADC IC chip for high resolution recordings via analog inputs including phono, AM/FM radio, or other analog signals.
- Convenient Clip signal Toggle switch for Recording Attenuation: Adjust the recording attenuation to avoid any distortion during recording: 0dB, 6 dB, or 12dB (RecAtt/db signal light comes on when input level exceeds circuit Gain).
- Phono Preamplifier: A first for this class, the GT40α features a phono equalizer for recording your precious LPs. Switch between Moving Magnet (MM) and Moving Coil (MC) or Line input
- Highest Quality Parts: The GT40α features a high quality amplifier and condenser supporting its high performance analog circuit (NJM5532 OPAMP: for ADC,DAC,Line in and out and NJM2068 OPAMP: for Phono )
- High End Audio Grade Connections: The GT40α is equipped with gold-plated Teflon-insulated RCA jacks with an extremely high quality aluminum chassis and machined volume knob

Specifications
- USB & Analog Playback and Record multimedia audio system
- Connectivity: USB B Interface, Analog input/output RCA jack
- USB Playback Resolution : 24bits/192kHz (Max)
- USB Recording Resolution: 24bits/192kHz (Max) supports 44.1 /48 /88.2 /96 /176.4 /192 (kHz)
- Frequency response: 20Hz ~ 20kHz (+/-0.5 dB)
- SN ratio: >90dB (A-wtd) / Line Output
- Line Output Level: 5 Vrms
- Line Input Level: MC 0.4mV / MM 4.0mV / Line 2Vrms
- Headphone Output Level: 1% THD 1kHz (Max.)
- 94mW(16 ohm),110mW(32 ohm), 98.6mW (56 ohm), 23mW (300 ohm)
- Power Supply AC Adaptor Rating: Erp step2 compliant, 2Wire AC Input Type, Class II, AC/DC Switching Adaptor output DC 15V / 0.8A / 12W
- Dimensions: 150 (W) x 111 (D) x 57 (H) mm　
- Weight: 650g Approx.
- GT40a Windows driver supports Win XP, Win 7 and Win 8 (not Win Vista)
- GT40α has no setting for gain to match different impedance headphones. We recommend using 16 ohm to 300 ohm impedance headphones.

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