dbx DI1 - Active Direct Box with Level and Impedance Matching Function in Black Finish

The dbx DI1 is a versatile and high-quality active direct injection box designed to deliver exceptional audio performance in both studio and live sound environments. Its compact form factor and rugged construction make it an excellent choice for professionals who demand reliability and superior sound quality from their equipment. The DI1 ensures that audio signals are transmitted in a balanced format while minimizing unwanted noise, making it a valuable tool for a variety of audio applications.

At the heart of the dbx DI1 is its level and impedance matching function, which allows it to seamlessly interface with a wide range of audio sources, including electric guitars, bass amplifiers, and keyboards. This functionality ensures that signals are optimally matched to the input requirements of your console mixer, without the need for microphones. The DI1 features a high input impedance of over 250k Ohms, making it ideal for capturing the nuances of high-impedance sources.

The DI1's output is equipped with an XLR balanced connector, which ensures a clean and interference-free signal path to your mixer or audio system. The output impedance is greater than 600 Ohms, providing excellent signal integrity and compatibility with various audio equipment. The unit also includes a signal pass-through connector, allowing you to easily route the signal to additional devices or amplifiers without compromising audio quality.

For optimal performance in different environments, the dbx DI1 includes several key features. The unit is powered by a 9V battery, which ensures reliable operation even in situations where phantom power is unavailable. A battery LED indicator provides a clear visual cue when the battery needs to be replaced. Additionally, the DI1 supports phantom power ranging from +18V DC to +48V DC, making it compatible with a wide range of equipment that requires phantom power.

The DI1 features a ground lift switch to address potential hum and buzz issues caused by ground loops. This switch allows you to isolate the DI1 from ground loops, ensuring a clean signal free from unwanted noise. The attenuation control provides flexibility in managing signal levels, with maximum input levels of +12dBu at 0dB, +32dBu at -20dB, and +52dBu at -40dB, allowing you to handle a wide range of signal strengths with ease.

In terms of performance, the dbx DI1 delivers impressive specifications. The distortion is exceptionally low, with a total harmonic distortion (THD) of less than 0.005% at 1kHz and 0dBu. The output noise level is also remarkably low at <-100dB unweighted, ensuring that the signal remains clean and clear. The frequency response of the DI1 spans from 10Hz to 70kHz with a tolerance of +0dB/-3dB, providing a wide and accurate frequency range for capturing and transmitting audio signals.

Constructed with a durable metal chassis, the dbx DI1 is built to withstand the rigors of live performances and studio sessions. Its compact dimensions of 4.01 x 3.93 x 1.77 inches make it easy to integrate into any setup, while its robust design ensures long-lasting reliability.

In summary, the dbx DI1 Active Direct Box is a high-performance, versatile solution for direct audio signal routing. With its level and impedance matching capabilities, low distortion, and rugged construction, the DI1 is well-suited for both live sound and studio applications, providing dependable performance and exceptional audio quality.

Features

• High-quality active direct box for studio and live sound applications
• Level and impedance matching function for optimal signal compatibility
• Output impedance > 600 Ohms for excellent signal integrity
• XLR balanced output connector for clean signal transmission
• Battery LED indicator for 9V battery power with backup operation
• Phantom power support from +18V DC to +48V DC with LED indicator
• Maximum input levels: +12dBu (0dB), +32dBu (-20dB), +52dBu (-40dB)
• Low total harmonic distortion (THD) < 0.005% at 1kHz, 0dBu
• Output noise level < -100dB unweighted for clean signal
• Frequency response from 10Hz to 70kHz, +0dB/-3dB
• Ground lift switch to eliminate hum and buzz from ground loops
• Attenuation control for managing signal levels
• Signal pass-through connector for additional routing options
• Rugged metal chassis for durability in demanding environments
• Compact dimensions: 4.01 x 3.93 x 1.77 inches

Specifications

Input

• Input Impedance: > 250k Ohm
• Max Input: +12dBu (at 0dB) Level +32dBu (at -20dB) +52dBu (at -40dB)
• Connectors: Two Parallel 1/4" jack connectors and a parallel XLR connector (unbalanced), 1/4" Jack: Tip Hot, Sleeve Ground; XLR Jack: Pin 2 Hot, Pins 1 & 3 Ground

Output

• Output Impedance: > 600 Ohms
• Output Connectors: XLR balanced

Performance

• Distortion: (THD) < 0.005% at 1kHz, 0dBu
• Output Noise: <-100dB unweighted
• Frequency Response: 10Hz to 70kHz, +0dB/-3dB

Power Supply

• Main/Standby: 9 Volt battery
• Phantom Power: +18 Volts DC to +48 Volts DC

Physical

• Dimensions: 4.01 x 3.93 x 1.77 inches