Alpha Design Labs GT40 User Manual

取扱説明書

User manual

24Bit 96KHz Audio Interface

Source Selection Switch

USB 2.0

GT40

Level

min

max

GT40 USB DAC by FURUTECH

Alpha Desi gn LAbs

ADL GT40 USB DAC

by FURUTECH

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Alpha Design LAbs

WHEN USING YOUR GT40 USB DAC PRECAUTIONS SHOULD ALWAYS BE
FOLLOWED, INCLUDING THE FOLLOWING:

WARNING

Misuse of electrical equipment displaying this mark may cause serious injury

CAUTION

Misuse of electrical equipment displaying this mark may be deadly

1. Read all instructions.

2. Operate GT40 for its intended purpose only.

3. To reduce the risks of electric shock do not immerse the unit in water or other liquids.

4. Never pull power cord to disconnect unit from wall outlet. Instead grasp AC adaptor and pull to
disconnect.

5. Do not allow power cord to touch hot surfaces.

6. Do not operate unit with a damaged power cord or if the unit has been dropped or damaged.
To reduce the risk of electric shock do not disassemble or attempt to repair the GT40; take it to

a qualied service technician for examination and repair. Incorrect reassembly or repair could

cause a risk of re, electric shock, or injury when the GT40 is used.

SAVE THESE INSTRUCTIONS

Modications

CAUTION: DO NOT SUBSTITUTE PARTS OR MAKE ANY MODIFICATIONS WITHOUT THE WRIT-

TEN APPROVAL OF FURUTECH CO., LTD. MODIFICATION MAY CREATE SAFETY HAZARDS AND

VOID THE WARRANTY.

NOTICE: CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY FURUTECH CO., LTD.

COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT UNDER FCC REGULA­TIONS.

Repairs

CAUTION: DO NOT SERVICE OR REPAIR THIS PRODUCT UNLESS PROPERLY QUALIFIED.
ONLY A QUALIFIED TECHNICIAN SHOULD PERFORM REPAIRS.

IMPORTANT SAFETY INSTRUCTIONS

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ADL GT40 USB DAC

Alpha Design Labs 24bit/96kHz GT40 USB DAC with Phono Stage

The GT40 Harmonizes Computer Files and Analog Inputs

The GT40 is nally here, built for enthusiasts with growing music collections on their computer

hard drives. It’s a high performance 24bit/96kHz USB DAC that’s amazingly affordable. Looking
to convert your LPs or other analog sources to digital? The GT40 will take you to the podium with
every album you archive.

The seriously-shielded audiophile-grade GT40 features a low-latency USB 2.0 audio driver that

plays and records at 96kHz. A likely rst for this category, the GT40 includes a built-in low-noise

MM / MC phono preamp! Record your favorite vinyl to hard disk via the USB output.

The ADL GT40 features L/R analog outputs, and switchable line or phono inputs with a vivid,

captivating sound that is simply unheard of in this category.

The ADL GT40 (wired with Furutech’s GT2 or ADL’s Formula 2 USB cable of course) brings

Furutech’s signature sound -- smooth, detailed clarity -- to desktop systems, especially with high
resolution 24bit/96kHz les, but even 16bit/44.1kHz les sound impeccable and very musical.

Features

• High performance 24bit/96kHz USB DAC and ADC IC chip

• Enjoy audio in high resolution at 24bit/96kHz surpassing conventional 16bit/44.1kHz

standards

• Incorporates the most trusted driver in professional audio for 96kHz 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 GT40 with an external

power supply to solve the problem.

• Headphone Amplier: The GT40 contains a high performance headphone amplier with

ample drive for good headphones.

• Analog-to-Digital Converter: The GT40 sports a high-performance ADC IC chip for high

resolution recordings via analog inputs including phono, AM/FM radio, or other analog

signals.

• Phono Preamplier: A rst for this class, the GT40 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 GT40 features a high quality amplier and capacitors supporting

its high performance analog circuit.

• High End Audio Grade Connection: The GT40 is equipped with gold-plated Teon-insulated

RCA jacks with an extremely high quality aluminum chassis and machined volume knob

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Alpha Design LAbs

Important Note:

The GT40 has been designed as a USB DAC primarily for the playback of PC based digital audio
and for the conversion and recording of analog signal via USB to your PC.

Included with the GT40:

• User manual

• AC Adaptor for use with GT40 only

• USB cable x 1

Please read carefully and follow all instructions.
Keep this manual for future reference.

Functions and Part names ・・・・・・・・・・・・
Front Panel
Rear Panel
ADL GT-40 Connectivity ・・・・・・・・・・・・・・
Connection and settings
PC requirements
Basic settings
Windows XP・・・・・・・
Windows 7 ・・・・・・・・
MAC OS ・・・・・・・・

Specications ・・・・・・・・・・・・・・・・・・・・・・・

Warranty・・・・・・・・・・・・・・・・・・・・・・・・・・・・

User manual contents

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ADL GT40 USB DAC

① Power Switch
② Phono/Line USB switch: for switching between USB input or Phono/Line input
③ Headphone Jack
④ Volume Control （1.Playback volume control. 2.Headphone volume control）

⑤ Phono (MM/MC) and Line Switch: Switches between analog inputs, line or phono moving magnet

cartridge and phono moving coil cartridge.

CAUTION: Do not switch between settings during playback or while the GT40 is
switched on. Doing so may damage speakers.

⑥ USB Connector: Hook to USB connector on your computer.
※The Phono/Line or USB selector switch on the front panel must be set to USB for the GT40
to receive signal from the computer.
⑦ Phono/Line Level L/R RCA Analog Inputs: Connect to external analog sources
⑧ Phono/Line Level L/R RCA Analog Outputs: Connect to L/R ampli󳞛er inputs
⑨ Earth/Ground Terminal: Connect Phono cable ground wire to reduce noise
⑩ AC Input: Connect GT40 AC Adaptor / Rating: AC 9V 0.5A

■ Front Panel

■ Rear Panel

Functions and Part names

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