
( Brand: Irp Knowles ), ( Model: DI-4019, LEVEL-MATIC ), ( Part Type: Rack Level )
The Knowles Di-4019 PA Rack Leveler, Level-Matic, is an exceptional limiter designed for professional audio applications. This device is a part of the renowned IRP (Integrated RF Protection) Mic series by Knowles, known for their high-quality microphone components.
The Di-4019 Limiter is a rack-mountable unit, providing a compact yet powerful solution for your audio processing needs. It features a state-of-the-art limiter circuitry that ensures optimal control over peak levels while maintaining the original audio quality. This limiter is particularly useful in live sound reinforcement, broadcasting, and studio recording scenarios where dynamic range control is crucial.
The Level-Matic technology in the Di-4019 Limiter allows for easy and precise level adjustment. This feature automatically adjusts the output level to an optimal level, ensuring consistent sound levels across different input sources. Additionally, the limiter has a threshold adjustment control that allows for manual fine-tuning, providing you with the flexibility to tailor the limiter's response to your specific audio requirements.
The Di-4019 Limiter is built with robust components, ensuring reliability and durability in demanding environments. It features a rugged metal chassis and high-quality connectors, ensuring that it can withstand the rigors of regular use in live sound applications.
In summary, the Knowles Di-4019 PA Rack Leveler, Level-Matic, is a versatile and powerful limiter that offers exceptional performance and ease of use. Its Level-Matic technology, robust build, and precision control make it an ideal choice for professional audio applications where dynamic range control is essential.
The Knowles DI-4019 PA Rack Leveler Level-Matic is a limiter/IRP (Intelligent Release Processing) mic preamp designed for professional audio applications. Here are some pros and cons to consider before making a purchase:
Pros:1. Intelligent Release Processing (IRP) technology: This technology allows the limiter to release more naturally, reducing distortion and improving audio quality.
2. Wide frequency response: The DI-4019 has a frequency response of 20 Hz to 20 kHz, which means it can handle a wide range of audio sources.
3. Low noise floor: The DI-4019 has a low noise floor of -125 dB, which means it can capture audio signals with very little background noise.
4. Rack-mountable design: The DI-4019 is designed to fit into standard 19-inch racks, making it easy to integrate into existing audio systems.
5. High input impedance: The DI-4019 has a high input impedance of 600 ohms, which means it can handle a wide range of microphone types and levels.
Cons:1. Price: The DI-4019 is a high-end mic preamp, and its price reflects that. It may be out of reach for some budget-conscious users.
2. Complexity: The DI-4019 has a lot of features and controls, which can be overwhelming for users who are not familiar with professional audio equipment.
3. Size: The DI-4019 is a rack-mountable unit, which means it takes up a lot of space in a rack. This may be a drawback for users who have limited rack space.
Conclusion:The Knowles DI-4019 PA Rack Leveler Level-Matic is a high-quality mic preamp with a lot of features and controls. Its IRP technology, wide frequency response, low noise floor, and high input impedance make it a great choice for professional audio applications. However, its price and complexity may be a drawback for some users. If you have the budget and the technical expertise, the DI-4019 is a great investment. If not, there may be other options that better fit your needs and budget.
Recommendation:If you are looking for a high-end mic preamp with advanced limiter technology, the Knowles DI-4019 PA Rack Leveler Level-Matic is a great option. However, make sure you have the budget and technical expertise to make the most of its features. If you are looking for a more affordable option, there are other mic preamps on the market that may better fit your needs. Do your research and compare different options before making a purchase.
A loud talker causes the master gain to decrease. If a quiet talker then begins to use the system, the gain increases to a new value as established by his average speaking level. Maybe this was used.
The level matic ii gain control is based on the loudness versus frequency and loudness versus time response of the human ear. Two control voltage s are created in the circuitry, one circuit establishes a semi stationary control voltage and another circuit creates a voltage which follows the signal peaks. At any instant, an attenuation circuit is governed by one, but not both, of these control voltage s.
They updated their stuff and this is one of the things I bought.
The level matic ii AFC circuitry automatically adjusts the master output gain to maintain a uniform output signal level for input level variations of as much as 10db. Irp's the level matic ii AFC incorporated in the de mixer performs an important function typically performed by a manual operator in a sound system. If the talker stops talking the gain holds as established by the talkers average speaking level.
The drum tracks to zeppelin's when the levee breaks was recorded at the studio.
This is a awesome vintage limiter I pulled out of a lot that came from a local recording studio owned by Willie nelson here in Austin. Gain corrections are made at a constant slew rate to minimize gain hunting.