Operating Manual - PROTEA SYSTEM II 4.24C Crossover / System Processor

4.6Audio Functions

4.6a Gain

Input and Output Gain are separately adjustable from -40dB to +12dB in 0.1dB increments.

The output gain menu also provides for selection of input source(s) for a given output channel, as well as polarity of the outgoing sig- nal. Input signal sources are A, B, C, D, A+B, C+D, all four inputs com- bined, or no input (Off). Keep in mind that two signals which share significant content, such as a stereo source, will be up to 6dB louder when combined.

Input Gain LCD Display

Input Gain

Channel A-DGAIN A

Level 0.0dB

-40 to +12

Output Gain LCD Display

 

 

 

 

 

Signal Source

Output Gain

 

 

 

 

A,B,C,D

 

 

 

 

 

 

 

Channel 1-8

 

GAIN 1

Source:A

 

A+B,C+D,All

Level

 

0.0dB

Pol:Normal

 

Output

-40 to +20

 

 

 

 

Polarity

 

 

 

 

4.6b EQ

EQ LCD Display

The Protea 4.24C EQ section offers full parametric EQ as well as 1st and 2nd order shelving filters on inputs and outputs. Each input chan- nel has six selectable EQ filters, while each output channel has four select- able EQ filters. In all cases, each fil- ter is selectable between parametric (PEQ), 1st order Low Shelf (LS1), 2nd order Low Shelf (LS2), 1st order High Shelf (HS1), and 2nd order High Shelf (HS2).

 

 

 

 

 

6 Input Fltrs

Parametric

 

 

 

 

 

4 Outpt Fltrs

Low Shelf-1st

Ch. A-D EQ

 

 

 

 

 

 

 

Low Shelf-2nd

 

 

 

 

 

 

 

High Shelf-1st

 

 

 

 

 

 

 

Ch. 1-8 EQ

 

EQ 1

Filtr:1-PEQ

 

High Shelf-2nd

 

 

 

EQ +/-

 

0.0dB 1000Hz 1.00o

 

Parametric

Level

 

 

 

 

 

 

 

Bandwidth

 

 

PEQ,

 

LS, HS

 

 

 

 

 

 

 

 

 

 

 

 

 

Frequency

 

Shelving EQ filters: 1st order fil- ters use a gentle 6dB per octave slope, while 2nd order filters use a 12dB per octave slope for more a pronounced boost or cut. All shelving filters have a boost/cut range of +/- 15dB. Low shelving filters have a frequency range from 19.7Hz through 2kHz, and the high shelving filters range from 3.886kHz through 21.9kHz. Shelving filters are most useful as broad tone controls to boost or cut the high end or low end of an audio signal's frequency content. Because they affect a wider spectrum of audio, they are not as suit- able for feedback control as parametric fil- ters.

1st Order Filter

Low Shelf

2nd Order Filter

High Shelf

+20dB

+10dB

0dB

-10dB

-20dB

-30dB

20Hz

200Hz

2KHz

20KHz

4. 24C Shelving Filters

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Ashly 4.24C manual Input Gain LCD Display, Output Gain LCD Display, EQ LCD Display, Audio Functions 6a Gain, 6b EQ

4.24C specifications

Ashly 4.24C is a versatile and powerful audio processor that has gained popularity among sound engineers and audio professionals for its robust features and innovative technology. Designed specifically for live sound reinforcement, installed sound systems, and broadcast applications, this digital signal processor stands out in a crowded market by combining flexibility, performance, and ease of use.

One of the key features of the Ashly 4.24C is its comprehensive digital signal processing capabilities. With 24 individual input channels and 24 outputs, the device supports extensive routing options, enabling audio engineers to manage complex setups with ease. The processor includes a 4-band parametric equalizer, compressor, limiter, and noise gate on every channel, allowing for precise sound tailoring. Additionally, the inclusion of 16 built-in presets makes it easy to switch between different audio settings in live sound environments.

The Ashly 4.24C utilizes cutting-edge technologies to achieve superior sound quality. D/A and A/D converters are of high fidelity, ensuring that the audio signals remain clear and detailed throughout the processing chain. The device also features 24-bit resolution at sample rates up to 96 kHz, ensuring that even the most demanding audio applications are handled with professional quality. This emphasis on audio fidelity is particularly important in live sound and broadcast applications, where every nuance of sound can significantly impact the overall experience.

Ease of use is another standout characteristic of the Ashly 4.24C. The unit comes equipped with a user-friendly interface that includes an intuitive touchscreen, which simplifies the navigation of its numerous controls and settings. This graphical interface allows for greater visual feedback, making it easier for sound engineers to make adjustments during performances or broadcasts without needing to memorize complex configurations.

In terms of connectivity, the Ashly 4.24C offers a variety of inputs and outputs, including analog XLR, digital AES/EBU, and even optional Dante networking capability for seamless integration into modern networked audio systems. This flexibility ensures that the processor can fit into various setups, from small venues to large concert halls.

Overall, the Ashly 4.24C combines advanced audio processing technology with user-centric design, making it an excellent choice for professionals seeking high-quality sound solutions. Its multitude of features and capabilities ensure it meets the demands of contemporary audio applications while maintaining an accessible and manageable interface for users.