Ashly 4.24D Manual de usuario descargar pdf (Pagina 4)

Protea System II Digital Processors

4.24G GRAPHIC EQUALIZER/SYSTEM PROCESSOR

The Protea Series 4.24G digital equalizer offers true 24-bit resolution from input to output and provides you unparalleled audio

processing power for a wide range of applications—monitor systems, front of house PAs, commercial sound installations requir-

ing fixed and tamperproof equalization, recording and broadcast studios, Surround-Sound™, digital audio workstations, and

computer recording applications.

The 4.24G has all the audio processing tools needed for flawless graphic equalization and sound control. In addition to 28

bands of 1/3-octave EQ, the 4.24G features a programmable compressor/limiter for general compression or speaker protec-

tion, and programmable delay of up to 1.364 sec. for time compensation of speaker clusters, arrays, or monitor speakers.

Individual, programmable 24dB/octave high- and low-pass filters allow you to zero in and fine tune the audio spectrum.

A large 240 x 64 fluorescent backlit display keeps you constantly informed of every parameter, function and utility. Full control

of the 4.24G is available from the front panel in an intuitive and straightforward layout—it’s as intuitive as using your famil-

iar analog equalizer. When used with the 4.24RD Full-function Remote Control, leveling a system becomes a breeze. Imagine

standing anywhere in the room with your sound system or monitors and adjusting your EQ on the spot! No running back and

forth between your sound source and the board to make EQ adjustments. The Protea system can also be expanded to provide

up to 16 channels of digital equalization with the addition of the 2- and 4-channel slave units, which can be easily controlled

from the 4.24G main unit, from the 4.24RD remote control, or by using a PC running the included Protea System Software.

Never before has equalization been this powerful and simple at the same time.

FEATURES:

• 24-bit A/D–D/A audio resolution

• 24-bit/100 MHz (x2) digital signal processing

• Four 28-band 1/3-octave channels of EQ

• Programmable compressor/limiter*

• Programmable delay up to 1.364 seconds*

• Programmable high- and low-pass filters*

* Available in each channel

• Balanced XLR and 1/4” inputs and outputs

• Intuitive user interface

• Large, 240 x 64 fluorescent backlit display

• Linkable channels

• Constant Q/reciprocal filter design

• ±15dB boost and cut, 0.5dB increments

• 128 preset locations, 50 scenes

• RS-232 computer interface

• Full MIDI implementation

• Input and output metering viewable in dB or VU

• UL/CUL listed

• Password protection of system operation

• Five year worry-free warranty

SPECIFICATIONS:

Input: Active balanced, 18 kohms

Max. input level: +20 dBu

Output: Pseudo-balanced, 200 ohms

Max. output level: +20 dBu

Frequency response: 20 Hz–20kHz, ± .5 dB

THD: <0.01% @1 kHz, +20 dBu

Dynamic range: >110 dB (20 Hz–20 kHz) unweighted

Output noise: <-90 dBu unweighted

Filters

Type: Constant Q, reciprocating

Number and spacing: 4 x 28; 1/3-octave spacing

Range: ±15 dB, 0.5 dB increments

Q: Fixed, 3.2

Compressor/Limiter

Threshold: -20 dBu to +20 dBu, 1 dB increments

Ratio: 1.2 : 1 to infinity

Attack: 0.5 ms to 50 ms per dB

Release: 10 ms to 1 sec. per dB

High-pass fileter: 24 dB/octave

Range: 20 Hx to 10.6 kHz

Low-pass filter: 24 dB/octave

Range: 33 Hz to 20.1 kHz

Delay

Maximum delay: 1.364 seconds

Increment: 20 µs

Processor

Input A to D: 24 bit

Output D to A: 24 bit

Processor: 24 bit, 56 bit accumulator

Sample rate: 48 kHz

Propagation delay: 1.46 ms

I/O Connectors: XLR 1/4”

Environmental: 40–120 deg. F, non-condensing

Power requirements: 90–125 VAC, 50–60 Hz, 30W;

180–250 VAX, 50–60 Hz, 30 W

Shipping weight: 14 lbs.

Dimensions: 19.0”L x 3.5”H x 8.0”D

Ashly 4.24D Manual de usuario Pagina 4

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Ashly 4.24D Manual de usuario Pagina 4

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