DC48-DSP
Product Specifications
- BASIC PARAMETERS
Uses 24bit data part of the stream and 32Bit DSP.
The frequency music input channel has a 7-band parametric EQ, the mic input channel has a 15-band parametric equalizer.
The main output has 5-band parametric equalizer, center output, rear output and the subwoofer has 3-band parametric equalizer.
There are three feedback-suppressing microphone inputs to choose from, the output has a voltage limiter and delay function.Can be stored 16 kinds of modes, all channels are equipped with a high pass or low pass filter.
Maximum input level: 8V (RMS)
Maximum output level: 8V (RMS)
Music channel gain: MAX: 16dB
Microphone sensitivity: 64mV (Out: 4V)
SNR: > 90dB
Input voltage: 220V (50Hz) - TECHNICAL PARAMETERS
Sample rate：48khzanalog input：2 x xlr balanced
Input impedance：10kω balanced / 20kω unbalanced
Analog output： x xlr balanced
Output impedance：50ω balanced / 100ω unbalanced
Frequency response：20hz–20khz±0.33db
Ad & da converter：32 bit ad / 24 bit da
Default output level：0dbu
Maximum input level：18dbu
System delay：1.7ms
Noise floor：-92dbu
Input to output dynamic range：≥110dbu
S/n ratio：≥105dbu - DSP PROCESSING TECHNICAL PARAMETERS
use ti omap-l138 high-performance dsp, with a computing capacity of up to 3648 mips and 2746 mflops per second, built-in multiple audio algorithms, 48khz sampling rate.
parametric equalizer：input and output channels with 11-band eq adjust
6 filter types：peaking, notch, all pass2nd, all pass 1st, high shelf and low shelf
the filter gain range：-30db ~+30db, step accuracy: 0.1db
input and output gain range：-72db ~ +12db, step accuracy: 0.1db
center frequency：adjustable within the frequency range of 20hz~20khz with step accuracy of 1hz
filter q value bandwidth：peaking, notch, all-pass 2nd, q value: 0.18～144.27;
high and low pass filter: butterworth slope: 6/12/18/24/30/36/42/48db/oct
bessel slope: 6/12/18/24/30/36/42/48db/oct
linkwitzriley: 12/24/36/48db/oct
noise gate：threshold range: -100dbfs ~ 0dbfs;
start control time: 1ms ~ 1000ms;
recovery time: 1ms ~ 1000ms
input compressor：threshold range: -84dbfs ~ 0dbfs
ratio: 1 ~ 20
start-up time: 1ms ~ 1000ms
recovery time: 1ms ~ 10000ms
compensation gain: -24db ~ 30db
output limiter：threshold range: -84dbfs ~ 0dbfs
recovery time: 100ms ~ 100000ms;
delay：each input and output channel has up to 2000ms delay adjustable
