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The PlexiSystems is a tube direct input box offering superior sound and design. PlexiSystems provides the sonic quality and power top producers, engineers and musicians require in the studio and on the road. Direct input designed for basses, guitars, keyboards, synths and electronic instruments that require a superior direct box the PlexiSystems is your go to DI to give you unsurpassed sound for that perfect recording or live performance. With extended bandwidth the PlexiOne reveals an exceptional translation of an instruments character, the goal of every artist. Superior audio, massive bandwidth and features found on no other tube direct box.

PlexiSystems - Superior Tube Direct Input Box and Audio Systems
PlexiSystems PlexiOne - Superior Tube Direct Input Box and Audio Systems - direct input box. The PlexiOne is a tube direct input box that offers superior sound and design. PlexiOne provides the sonic quality and power top producers, engineers and musicians require in the studio and on the road. The design includes 3 Dual Triode tubes, Jensen transformers and individual discreet power supplies with exceptional sonic bandwidth.

PlexiSystems PlexiOne Tube Direct Box
PlexiSystems PlexiOne Tube Direct Box. The PlexiOne is a tube direct input box that offers superior sound and design. No other DI provides the musical quality and power as the PlexiOne. The design includes 3 Dual Triode tubes, Jensen transformers and individual discreet power supplies with exceptional sonic bandwidth.

PlexiSystems - Support - Superior Tube Direct Box and Audio Systems
PlexiSystems PlexiOne - Support - Superior Tube Direct Box and Audio Systems - direct input box. PlexiSystems. At PlexiSystems we pride ourselves on our customer support. Our audio dealers and musician clients know our commitment to quality goes beyond our products but also to the service we provide to them.

PlexiSystems - Dealers List - Superior Tube DI box and Audio Systems
PlexiSystems PlexiOne - Dealers List - Superior Tube Direct Box and Audio Systems - direct input box. Please visit these audio and music dealers to demo and purchase the PlexiSystems product line.

PlexiSystems - Contact Us - Superior Tube Direct Box and Audio Systems
PlexiSystems PlexiOne - Superior Tube Direct Box and Audio Systems - direct input box. Please feel free to contact PlexiSystems for more information or support. Tube direct input boxes, DI, direct box. PlexiOne.

PlexiSystems Tube Direct Box - DI
At PlexiSystems we pride ourselves on our quality products and customer support. Our audio dealers and musician clients know our commitment to quality goes beyond our products but also to the service we provide to them. PlexiSystems Quality Tube Direct Box and audio systems

PlexiSystems Tube Direct Box - DI
Company information for PlexiSystems Quality active tube direct input box and audio systems.

PlexiSystems - PlexiOne superior tube direct input box and audio systems
Register your PlexiSystems PlexiOne - Superior Tube Direct Box and Audio Systems - direct input box

Active Tube DI - PlexiSystems - PlexiOne - PlexiTwo direct input box.

A DI unit, DI box, Direct Input Box or simply DI is an electronic device that connects a high impedance line level signal that has an unbalanced output to a low impedance mic level balanced input, usually via XLR connector. DIs are frequently used to connect an electric guitar or electric bass to a mixing console's microphone input. The DI performs level matching, balancing, and either active buffering or passive impedance bridging to minimise noise, distortion, and ground loops. DIs do not perform impedance matching.

An active DI unit contains a preamplifier. Active tube DI units can therefore provide gain, and are inherently more complex and versatile than passive units.


Active direct input boxes require a power source, which is normally provided by batteries or a standard AC outlet connection, and may contain the option for phantom power use.

Most active DI units provide switches to enhance their versatility. These may include gain or level adjustment, ground lift, power source selection, and mono or stereo mode. Ground lift switches often disconnect phantom power.

A passthrough connector is a second output, sometimes simply connected to the input connector, that delivers the input signal unchanged, to allow the DI unit to be inserted into a signal path without interrupting it. This is essential in many applications. Passthrough is more common on active than passive DI units. Passthrough is also commonly referred to as a bypass. True bypass occurs when the signal goes straight from the input jack to the output jack with no circuitry involved and no loading of the source impedance.


Tube DI - PlexiSystems PlexiOne PlexiTwo PlexiThree direct input box.


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