Presonus Audio electronic Single-Channel Tube user manual Gain

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CONTROLS & OPERATION 2

the resulting sound possessing a ‘richer’ and ‘sweeter’ tone. If an overdriven signal is desired, this can be achieved by significantly raising the level of the DRIVE control. Overdriving the tube is especially useful for direct electric guitar sounds. Setting the DRIVE control is a matter of taste; the amount of saturation needed to achieve a desired result depends upon the resulting sound you want to hear. Experiment!

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Gain

 

This control is used to determine the amount that a

24signal being processed by the pre-amplifier is increased in level at output. Dynamic mics and instruments without pre-amps may require more gain than con- denser mics and instruments that have a built-in

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pre-amp (care should be taken with instruments having

 

 

 

 

their own built-in pre-amp not to overdrive the 1⁄4”

 

 

input of the DigiTUBE). Line level signals can only be processed through the

XLR input connector with the PAD/LINE switch in the LINE position. Attempt- ing to use the 1⁄4” input for line level signals exceeds the design parameters of the DigiTUBE. The 1⁄4” input of the Neutrik™ connector is designed to accept instrument level signals and attempting to use the 1⁄4” input for line level will likely yield an unsatisfactory result. Activating the PAD/LINE switch reduces the incoming signal by 30dB. This is a very useful feature for rapidly reducing the level coming into the DigiTUBE to prevent the input signal from over-modulat- ing (distorting). This may occur due to a high output level from a microphone. Padding the mic input serves to provide increased ‘headroom’ for the operator and allow greater variance in adjusting the GAIN control. Placing the switch to the PAD/LINE position allows the XLR connector to accept line level signals. Line level signals can be used in the XLR input without overdriving the input. Keyboards and other line level devices can be inserted into the DigiTUBE XLR input by selecting the LINE position.

Note: the PAD/LINE switch does not affect the 1⁄4” input of the Neutrik™ connector. The 1⁄4” input is designed to accept instrument level signals ONLY!

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Contents DigiTUBE Table of Contents Introduction OverviewGood luck and enjoy your DigiTUBE Features Internal Clock DriveTube Preamp Section Controls & OperationFront Panel Front panel of the DigiTUBE containsTheir own built-in pre-amp not to overdrive the 1⁄4 GainStraight up, twelve o’clock, position is labeled zero EQ in SwitchInput LowInner knob by plus or minus twelve decibels with 80Hz SwitchMid Frequencies from 900Hz to 5kHz. The outer ringMetering XLR Output Jack Back PanelAnalog Section TRS InsertDisconnect the DigiTUBE from it’s electrical outlet Power SupplyVacuum Tubes Replacing the Vacuum TubeControls & Operation Front Panel Controls Technical SpecificationsPerformance OutputPhysical Power SupplyUnited States Presonus Limited WarrantyOutside of the United States

Single-Channel Tube specifications

Presonus Audio's single-channel tube preamp is a game-changer for musicians, producers, and audio engineers looking to add warmth and character to their recordings. This device is designed to enhance any microphone or instrument signal, offering a blend of classic tube technology and modern engineering to produce a rich, detailed sound.

One of the primary features of this single-channel tube preamp is its all-tube signal path. By utilizing high-quality vacuum tubes, this preamp delivers a smooth and harmonic-rich sound that is often described as warm and lush. This characteristic makes it ideal for vocal recordings, capturing the nuances of a singer's performance, and bringing out the richness in acoustic instruments.

The preamp also incorporates a wide range of input options, including XLR and 1/4-inch connections, allowing users to easily connect various microphones and instruments. The built-in 48V phantom power provides versatility for condenser microphones, enabling users to achieve high-quality recordings without the need for additional power supplies.

Another notable technology featured in the Presonus single-channel tube preamp is the variable impedance control. This feature allows users to adjust the input impedance to match the specific needs of their microphone or instrument, optimizing the signal for better sonic clarity and detail. This flexibility ensures that every source is treated with the appropriate sonic characteristics, enhancing the overall recording quality.

In addition to its stellar sound capabilities, the preamp is equipped with a high-resolution LED metering system, providing real-time visual feedback of signal levels. This feature is essential for preventing clipping and ensuring optimal recording levels, which is critical in professional studio settings.

Furthermore, the unit includes a user-friendly interface with intuitive controls for gain, treble, mid, and bass adjustments. These features enable sound shaping on-the-fly, giving users creative control over their audio signals. The rugged build quality also ensures durability in both studio and live settings, making it a reliable choice for professionals on the go.

Overall, Presonus Audio's single-channel tube preamp showcases a perfect blend of classic tube warmth and modern functionality. With its versatile connectivity, intuitive controls, and high-quality sound, it remains a powerful tool for anyone serious about achieving professional-grade audio recordings. Whether for studio use or live performance, this preamp undoubtedly enhances any audio setup.
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