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©2008 Ashly Audio, Inc.
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Protea 3.6SP - 4.8SP Manual

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PRODUCTS

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Specifications

Protea 4.8SP Data Sheet

Input

Active Balanced, 18K ohms

Crossover High-Pass Filter Type

Linkwitz-Riley, Bessel, Butterworth

Max Input Level

+20dBu

Crossover High-Pass Filter Slope

12, 18, 24 and 48dB/Octave

Input and Output Gain Range

+12/-40dB, 0.1dB Incr

Crossover High-Pass Filter Range

Off to 21.98KHz, 245 step incr

Output

Active Balanced, 100 ohms

Crossover Low-Pass FilterType

Linkwitz-Riley, Bessel, Butterworth

Max Output Level

+20dBu

Crossover Low-Pass Filter Slope

12, 18, 24 and 48dB/Octave

Polarity

0 or 180 degrees

Crossover Low-Pass Filter Range

Off to 21.98KHz, 245 step incr

Frequency Response

20Hz - 20KHz,+/-0.25dB

Compressor/Limiter Threshold

-20dBu to +20dBu, 1dB incr

THD

<0.01% @ 1KHz, +20dBu

Compressor/Limiter Ratio

1.2, 1.5, 2, 3, 4, 6, 10, 20:1, Infinite:1

Dynamic Range

>110dB (20Hz-20KHz) unweighted

Compressor/Limiter Attack

0.5ms to 50ms per dB

Output Noise

<-90dBu unweighted

Compressor/Limiter Release

10ms to 1Sec per dB

EQ Filters

6 per input | 4 per output

Compressor/Limiter Range

20Hz to 10.6KHz

Parametric EQ Bandwidth

1/64th Octave to 4 Octave

Input A/D

24 bit

Parametric EQ Range

+15/-30dB, 0.1 dB incr

Output A/D

24 bit

Frequency Resolution

1/24th octave

Processor

24 bit, 56 bit accumulator

High-Shelf EQ Slope

6 or 12dB/Octave

Sample Rate

48KHz

High-Shelf EQ Frequency Range

19.7Hz to 2Khz

Propogation Delay

1.46ms

High-Shelf EQ Range

+/-15dB, 0.1dB incr

Power Requirements

90-240VAC, 30W

Low-Shelf EQ Slope

6 or 12dB/Octave

Shipping Weight

13lbs (Maximum)

Low-Shelf EQ Frequency Range

3.189Khz to 20.159KHz

Dimensions

19.0"W x 3.5"H x 8.5"D

Low-Shelf EQ Range

+/-15dB, 0.1dB incr

Connections

XLR

Maximum Input Delay

682.5ms

Environmental

40-120 deg. F (4-49 deg. C) noncondensing

Maximum Output Delay

682.5ms

Delay Increment

20uS

Protea 4.8SP 4x8 Speaker Processor