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Ashly Protea System II 4.24C User Manual

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Ashly Audio Inc., 847 Holt Road, Webster, NY 14580-9103, Toll Free (800) 828-6308, Telephone (585) 872-0010, FAX (585) 872-0739

Internet: http://www.ashly.com, email: [email protected]

Ashly manufactures a complete and comprehensive line of Graphic and Parametric Equalizers,

Electronic Crossovers, Power Amplifiers, Compressor-Limiters, Mixers, and

Amplifier Input Options. Please call, write or visit our web site for information on any of these Ashly Products.

General Specifications Protea System II 4.24C

INPUT:

Active Balanced, 18 Kohms

MAX. INPUT LEVEL:

+20 dBu

OUTPUT:

Active Balanced, 100 ohms

MAX. OUTPUT LEVEL:

+20 dBu

FREQUENCY RESPONSE:

20 Hz-20KHz, ±0.25 dB

THD:

<0.01% @1 KHz, +20 dBu

DYNAMIC RANGE:

>110 dB (20 Hz-20 kHz) unweighted

OUTPUT NOISE:

<-90 dBu unweighted

EQ FILTERS:
NUMBER:

6 per Input, 4 per Output Selectable

As:
PARAMETRIC
BANDWIDTH:

1/64th Octave to 4 Octave

RANGE:

+15/-30dB, 0.1 dB increments

RESOLUTION:

1/24th Octave

HIGH-SHELF
SLOPE:

Selectable 6 or 12dB/Octave (1 High

Shelf, 2 High Shelf)

FREQUENCY RANGE:

19.7Hz to 2KHz

RANGE:

+/-15dB, 0.1dB increments

LOW-SHELF
SLOPE:

Selectable 6 or 12dB/Octave (1 Low

Shelf, 2 Low

Shelf)

FREQUENCY RANGE:

3.1886KHz to 20.1587KHz

RANGE:

+/-15 dB, 0.1dB increments

CROSSOVER FILTERS:
HIGH PASS FILTER
TYPE:

Linkwitz-Riley, Bessel, Butterworth

SLOPE:

12, 18, 24 and 48dB/Octave

FREQUENCY RANGE:

Off to 21.983.3KHz, 1/24 Octave

LOW PASS FILTER
TYPE:

Linkwitz-Riley, Bessel, Butterworth

SLOPE:

12, 18, 24 and 48dB/Octave

FREQUENCY RANGE:

Off to 21.983.3KHz, 245 step

increments

DELAY:
INPUT MAXIMUM DELAY:

682.5ms

OUTPUT MAXIMUM DELAY: 21.33ms
INCREMENT:

20µs

INPUT and OUTPUT GAIN:
RANGE:

+12/-40dB, 0.1dB increments

POLARITY
0 or 180 degrees (selectable in the Output Gain Stage)

COMPRESSOR/LIMITER:
THRESHOLD:

-20dBu to +20 dBu, 1.0dB increments

RATIO:

1.2 :1 to Infinity (1.2, 1.5, 2., 3, 4, 6,

10, 20, Infinite:1)

ATTACK:

0.5 ms to 50 ms per dB

RELEASE:

10 ms to 1 sec. per dB

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

OTHER:
SIGNAL AND CLIP LEDs:

Inputs: -20/Mute, -10, 0, +10, Clip

(dBU or VU)

Outputs: -20/Mute, -10, 0, Limit,

Threshold, Clip (dBu or VU)

RS232 CABLE DISTANCE:

1300ft (Max)

MIDI CABLE DISTANCE:

500ft (Max)

POWER REQUIREMENTS:

80 - 260VAC, 30W max

SHIPPING WEIGHT:

10lbs

DIMENSIONS:

19.0”L x 1.75”H x 6.0”D

I/O CONNECTORS:

XLR

ENVIRONMENTAL:

40-120 deg. F, noncondensing

Notes: 0dBu = 0.775V RMS

Rear Panel Protea System II 4.24C

Applications:

Distributed Sound, Sound Masking, Multi-Room Installations for Lobby or Under Balcony Speaker Management, FOH Speaker
Management, Delay Towers and Side Fills, Monitor Systems (wedge and in-ear) Tuning and Protection

Misc:

Protea System Software for PC control of the Protea 4.24C may be downloaded free from our website. Use it to control the 4.24C,

4.24D, 4.24G, 4.24GS, 4.24PS, 2.24GS and 2.24PS. Download it now to preview the capabilities of the Protea System II Digital

Products. Protea System Software operates on Windows™ 95, 98, 2000, XP and NT platforms.