PA480 4 in 8 Out Digital Audio Processor with FIR

Specification:

Analog Input 4 XLR Balance;AES Input

Input Impedance 10KΩ Balance

Input Impedance 20KΩ Unbalanced

Analog Output 8 XLR Balance;AES Output

Output Impedance 50Ω Balance/100Ω Unbalanced

Frequency Response 20Hz – 20KH

Default Output Level 0dBu

AD & DA Transfer 24 bit

Maximum Input Level 22dBu（Max）

Maximum Output Level 22dBu（Max）

THD+N ≤0.0025% @ 4dBu 20Hz-20KHz （Min）

System Delay ≤2000ms（Max）

Bottom Noise ≤-90dBu（Min）

Dynamic Range ≥110dBu （Min）

S/N Ratio ≥110dBu（Min）

Algorithm Parameter

DSP Processing：Using TI's OMAP-L138 high-performance DSP , the computing

power is up to 3648 MIPS and 2746 MFLOPS per second. A variety of audio algorithms

are built in, and the maximum sampling rate is supported to 96KHz

Parametric Equalizer Up to 16 band EQ(In/output)

12 Filters Type

Peak, notch, elevated, low rack , high pass, low pass,

second-order all pass, first -order all pass, Butterworth high

pass, Butterworth low pass, Bessel high pass, Bessel low pass

Filters Gain Range -15dB ~+15dB，Stepping accuracy：0.1dB

Gain Range(In/output) -72dB ~ +12dB，Stepping accuracy：0.1dB

Center Frequency

Stepping accuracy：1Hz

(During the frequency range: 20Hz~20kHz)

Filters Q value/wide

band

Peak,T rap wave,second order all pass Q value： 0.01～5

High and low pass

filtering

Butterworth slope：6/12/18/24/30/36/42/48dB/Oct

Bessel slope：6/12/18/24/30/36/42/48dB/Oct

Linkwich Rayleigh：12/24/36/48dB/Oct

Input Noise Gate

Threshold Range： -84dBFS ～ 0dBFS；

Start Time： 1ms ～1000ms;

Recovery Time： 1ms ～1000ms

Input Compression

Threshold Range： -84dBFS ～ 0dBFS

Ratio：1 ～20

Start Time：1ms ~ 1000ms

Recovery Time： 1ms ~ 1000ms

Compensation Gain： -24dB ~ 30dB

Output Llimiting

Threshold Range： -84dBFS ～ 0dBFS

Recovery Time： 100ms ～ 1000ms

Delay Up to 2000ms can be adjused per in/output channel

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