MODEL: 4.8SPASHLY Protea 4.8SP Loudspeaker Management System 4 Input 8 Output 

• One Rack Space

• Four  Inputs - EightOutputs

• Extremely Intuitive User Interface

• Crossover, EQ, Delay and Limiter Functions

• Outputs Assignable to Any Input

• Superior Sonic Quality

• Front Panel or PC Programming and Control

• USB and RS-232 Interface

• Third Party Control Friendly

• XLR Audio Connections

• Balanced Inputs and Outputs

• Parametric Filters and Comp/Limiter to Control Feedback Problems

• Linkwitz-Riley, Bessel and Butterworth Filters

• 12, 18, 24 and 48dB/Octave Slopes

• Parametric EQ: 1/64th to 4 Octave Range

• 682ms Input and Output Delay

• Limiter on Each Output

• Individual Input and Output Metering

• Four Levels of Security


Input:Active Balanced, 18 kohms

Max Input Level:+20dBu

Input Gain Range:+12/-40dB, 0.1dB Increments

Output:Active Servo Balanced, 100 ohms

Max Output Level:+20dBu

Output Gain Range:+12/-40dB, 0.1dB Increments

Polarity:0 or 180 degrees

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:6 per input | 4 per output

Parametric EQ Bandwidth:1/64th Octave to 4 Octave

Parametric EQ Range:+15/-30dB, 0.1 dB incr

Frequency Resolution:1/24th octave

High-Shelf EQ Slope:6 or 12dB/Octave

High-Shelf EQ Frequency Range:19.7Hz to 2Khz

High-Shelf EQ Range:+/-15dB, 0.1dB incr

Low-Shelf EQ Slope:6 or 12dB/Octave

Low-Shelf EQ Frequency Range:3.189Khz to 20.159KHz

Low-Shelf EQ Range:+/-15dB, 0.1dB incr

Maximum Input Delay:682ms, 20uS incr

Maximum Output Delay:682ms, 20uS incr

Delay Increment:20uS

Crossover High Pass Filter Type:Linkwitz-Riley, Bessel, Butterworth

Crossover High Pass Filter Slope:12, 18, 24 and 48dB/Octave

Crossover Low Pass Filter Range:Off to 21.98KHz, 245 step incr

Compressor/Limiter Threshold:-20dBu to +20dBu, 1dB incr

Compressor/Limiter Ratio:1.2, 1.5, 2, 3, 4, 6, 10, 20:1, Infinite:1

Compressor/Limiter Attack:0.5ms to 50ms per dB

Compressor/Limiter Release:10ms to 1Sec per dB

Compressor/Limiter Range:20Hz to 10.6KHz

Input A/D:24 bit

Output A/D:24 bit

Processor:24 bit, 56 bit accumulator

Sample Rate:48KHz

Propogation Delay:1.46ms

Power Requirements:90-240VAC, 30W

Shipping Weight:13lbs (Maximum)

Dimensions:19.0”W x 3.5”H x 8.5”D

Connections :XLR

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


• Conventional PA Systems


• Monitors

• Aux fed subs

• L-C-R configurations

• Multi-zoned systems