Radial SGI44 Studio Guitar Interface

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  • Radial SGI44 Studio Guitar Interface

    The Radial SGI-44 is a studio quality bidirectional effects router that designed to take the output from a wireless receiver and run the guitar signal to the pedalboard and back. Two SGI-44s are used with one positioned at the wireless end, the other at the pedalboard. Connection is made using standard XLR cables.

    The first SGI-44 converts the unbalanced high-impedance guitar signal to a balanced low-impedance signal and the second reverses the process - thus allowing distances of more than 100 meters (300') without noise. To ensure optimal signal quality, the SGI-44 employs 100% hand-inserted discrete parts with Jensen isolation transformers to make up the class-A circuit. Although less efficient than the chip based AB circuits that are common with today’s ‘cost driven’ designs, single ended class-A circuits are preferred by audiophiles due to the lack of zero-cross distortion. These  deliver greater transparency and realism. To further improve the feel, the SGI-44 is equipped with Drag Control load correction. This allows you to 'dial in' the perfect load as if connected to a tube guitar amp using a standard guitar cable. To add versatility, the SGI-44 is equipped with a buffered tuner out for quick between song adjustments or can be used to split the guitar signal to a second signal chain if need be.

    Built 'Radial tough' the SGI-44 is made in Canada using 14 gauge steel. An innovative I-beam internal frame protects the sensitive circuit board from outside stress which could torque the solder points and cause premature failure. Radial's innovative book-end construction creates recessed zones at each end that protect connectors, switches and controls from harm's way.

    Radial SGI44 Features:

    • Instrument input: ¼" unbalanced input
    • Tuner output: ¼" unbalanced output
    • TX output: Bal. XLR output (Studio Guitar Interface)
    • RX input: Bal. XLR input (Studio Guitar Interface) with gnd. lift
    • Drag: Variable input impedance control
    • XLR configuration: AES standard (pin-2 hot).

    Radial SGI44 Specifications:

    • Audio circuit type: Active 100% discrete class-A with transformer isolation
    • Frequency response: 20Hz ~ 20kHz (-2dB)
    • Signal to noise ratio: 100dB (0dBu input)
    • Dynamic range: 105dB
    • Noise floor: -100dBu
    • Maximum input: +2dBu
    • Total harmonic distortion: 0.005% @ 1k
    • Inter-modulation distortion: 0.02% @ 1k
    • Input impedance: Variable from 10k Ohms ~ 1 megaOhm
    • Output impedance: 218 Ohms (¼" unbal. output); 280 Ohms (TX bal. output)
    • Power: +15VDC/400mA adapter included
    • Construction: 14 gauge steel chassis & outer shell, baked enamel finish
    • Size: 4.25" x 2" x 5" (102 x 76 x 165mm)
    • Weight: 3lbs. (1.36kg).

    Specifications are subject to change without notice.



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