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Alpha Design Labs GT40 Phono/Headphone Amp with DAC

Alpha Design Labs Gt40

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Top Features
  • External power supply
  • Enjoy audio in high resolution at 96KHz/24-bits
  • Phono Preamplifier

SKU# 117872


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Alpha Design Labs GT40 Phono/Headphone Amp with DAC

The seriously-shielded audiophile-grade GT40 features a low-latency USB 2.0 audio driver that plays and records at 96 kHz. A likely first 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 brings Furutech`s signature sound -- smooth, detailed clarity -- to desktop systems, especially with high resolution 24-bits/96kHz files, but even 16-bit/44.1kHz files sound impeccable and very musical.

  • High performance 96KHz/24bit USB DAC `and ADC IC chip
  • Enjoy audio in high resolution at 96KHz/24-bits surpassing conventional 44.1KHz/16-bit 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 Amplifier: It contains a high performance headphone amplifier 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 Preamplifier: A first 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 amplifier and condenser supporting its high performance analog circuit
  • High End Audio Grade Connections: The GT40 is equipped with gold-plated Teflon-insulated RCA jacks with an extremely high quality aluminum chassis and machined volume knob
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    Features & Specs

    Additional Information

    Product ID 117872
    UPC 4582237535051
    Brand Alpha Design Labs
    SKU 117872
    Manufacturers Part Number GT40
    Detailed Specifications
  • USB & Analog Playback and Record multimedia audio system<
  • Connectivity: USB B Interface, Analog input/output RCA jack
  • USB Playback Resolution : 24bit/96KHz
  • USB Recording Resolution: 96kHz (Max) supports 32kHz/44.1kHz/48kHz
  • Frequency response: 20Hz ~ 20kHz (40Hz: +0.5 dB, 15kHz:-0.5dB)
  • SN ratio:-90dB (A-wtd) / Line Output
  • Line Output Level: 1 Vrms
  • Line Input Level: MC 0.4mV / MM 5mV / Line 1V
  • Headphone Output Level: 80mW ( 32 ohm ) Max.
  • Power Supply AC Adaptor Rating: AC 9V 0.5A
  • Dimensions: 150 (W) x 111 (D) x 57 (H) mm
  • Weight: 785g Approx.

  • The load (Input Impedance) for the ADL GT40 is fixed at 47K ohm input impedance for both MC and MM.
  • Maximum Input Level for MM: 5.0mVrms at 1K Hz
  • Maximum Input Level for MC: 0.4mVrms at 1K Hz
  • Maximum Input Level for LINE: 1Vrms at 1K Hz
  • The Gain setting for the ADL GT40 is fixed at 62.5dB for MC and fixed at 48.5dB for MM.
  • (MC input to LINE output) => 62.5dB @ 1K Hz , +6dB(Line)
  • (MM input to LINE output) => 48.5dB @ 1K Hz , +6dB(Line)

  • GT40 has no setting for gain to match different impedance headphones. We recommend using 16 ohm to 300 ohm impedance headphones.