The Zdirect is a high-quality, completely passive interface that allows you to connect instrument, line, or speaker level signals to a mixer or other balanced input via a high-performance audio isolation transformer. The high impedance unipolar 1/4" input is converted by the transformer into a balanced, isolated low impedance signal source. The Zdirects audio transformer has an extremely flat and wide frequency response and can handle high signal levels while maintaining a balanced and isolated low impedance output This gives the Zdirect a very clean and neutral sound with a wide variety of signal sources and over long signal paths in very noisy environments.
The input attenuator switches allow for a wide range of signal levels and the Input Thru jack allows you to pick up your signal chain. The Ground Lift switch allows you to fully separate the input signal and output signal grounds, where applicable, to isolate two systems, reducing hum and ground loop noise.
What further distinguishes the Zdirect from other "DI" boxes is its extensive functions and versatility. We added a switchable low pass filter that cuts out all very high frequency interference. This Bessel filter on the output is placed out of the audio range and is primarily intended to reduce radio interference before it reaches the main system. The filter is also very effective at reducing digital computer noise artifacts when using the Zdirect as an interface between a computer audio workstation and your displays. The phase inversion switch, although not normally included with your DI box, has been added to allow you to change the polarity of the signal directly at the source. This feature is especially handy when combining a direct pickup with a mic feed in the mix.
The compact black anodized all-aluminum housing and passive design allows the Zdirect to provide years of trouble-free service in live sound, fixed and permanent installation, DJ and virtually any PA application . Its comprehensive feature set, rugged construction, and premium specifications make the Zdirect the obvious choice.
Frequency response: 10Hz 50kHz, +/-.5dB @ +4dBu
THD: .01% Typical @ 1kHz, +18dBu,