About the G-A100 Active Direct Box
The Active Direct Box is the essential link for those who demand maximum fidelity and total control of audio on stage and in the studio. Its function is to precisely boost the instrument signal, converting high-impedance, unbalanced sources—such as basses, guitars, synthesizers, and keyboards—into professional balanced signals, ready for long, lossless, noise-free connections with much more presence.
But not all active DIs are created equal
In premium models like this one, equipped with encapsulated mu-metal transformers, the sonic performance reaches a level normally only found in reference equipment. Mu-metal—a metallic alloy with very high magnetic permeability—provides total isolation against noise and interference, guaranteeing an extremely linear and musical response. The result is a reinforced, stable, and incredibly clean signal, preserving all the dynamics and personality of the instrument.
How it works
In this active model, the internal pre-circuit amplifies the signal before sending it to the transformer, ensuring consistent gain, greater headroom, and more sonic authority — ideal for low-output instruments or situations where the signal needs to travel to the mixing console without losing strength.
The mu-metal transformer acts as an isolator, transferring the signal between the primary and secondary coils without direct electrical contact, eliminating ground loops and external interference. The frequency response is wide and balanced: firm bass, articulate mids, and smooth, natural highs.
Functions and features
• Active pre-boost with Gain control: reinforces and stabilizes the signal before the balanced output.
• Parallel input and output: ideal for simultaneously sending the signal to the amplifier and the mixing console.
• Balanced XLR output: professional connection with very low noise.
• Ground Lift: instantly eliminates ground loops.
• Dedicated AC power supply: ensures stability for the active circuit and greater headroom.
Premium Quality
The heart of this direct box is its encapsulated mu-metal transformer, calibrated to deliver extraordinary transparency, definition, and musicality. While common steel or ferrite transformers are more susceptible to unwanted interference and coloration, mu-metal ensures impeccable magnetic shielding, resulting in a natural, full, and extremely quiet sound—exactly as professional musicians and sound engineers prefer.
Every detail of the design was conceived for reliability: shielded metal chassis, high-durability connectors, robust ground lift switch, and an internal circuit designed to withstand touring, intense recording, and continuous professional use.
The result is an active direct box that goes beyond technical function. It enriches the timbre, delivers more depth, presence, and musicality to the instrument—and quickly becomes an indispensable item in the setup of anyone who truly cares about sound quality.
Specifications:
Audio Circuit Type Active (Transformer Based)
Input Impedance 10k Ω unbalanced (P10)
Output Impendace 200 Ω balanced (XLR)
Parallel 5 Ω input differential
Max. Gain 35dB
Frequency Response 3Hz to 75kHz
THD 0.005% (20Hz~20kHz @-11dB)
Mu-Metal Transformer Greenbox GPMM1 (12:1)
Number of channels single
Weight 580g
Dimensions 15cm x 10cm x 5cm
Included Items
G-A100 Active Direct Box, instruction manual, warranty.
