13
11. Specifications
DA 428
Electronic:
Output power @ 4 / 8 Ohm 4 x 700 W / 400 W
Amplifier
four fully digital amplifiers with high efficiency, about 90 %
Frequency range
20 Hz - 20 kHz
S/N-ratio
(A-weighted / unweighted)
100 / 95 dB
Input sensitivity
0 dB (775 mV), adjustable
Crosstalk @ 1 kHz
> 90 dB
Damping factor @ 1 kHz
>
500
Voltage gain @ 4 / 8 Ohm
36
dB
THD
@ 1 kHz
< 0,1 %
Slew rate, V /
μ
s internal
>70
Slew time
μ
s / V internal
<
1,5
Features
per channel: adjustable gain, digital crossovers, subsonic-filter,
6 fully parametric EQ`s, peak-/ RMS-limiter, compressor,
phase (180°), delay (0 - 1000 ms), mute-function, matrix-router
Protective circuits
for single channels: short circuit, DC on output, impedance
undercut
for the hole device: under-/ over voltage, temperature, overload
Power consumption
2500
W
Power requirements
90 - 250 Volt / 50 - 60 Hz, PowerCon In
Operation modes
stereo, mono, 4-channel mode (free routable)
Control panel
Navigation pad, 4 rotary encoders, 4 RGB LEDs,
LCD- display, SD-card reader
Connectors
line-in 4 x XLR sym., link-out 4 x XLR sym.
(max. 4 x analogue or 2 x digital & 2 x analogue);
speaker output 4 x Speakon NL 4; RSNC-module
Processor:
DSP
24 bit, 48 MHz clock
Unit delay
< 1,5 ms
Sampling
24 bit
Digital input & link
AES/EBU / S/PDIF with format / sample rate converter
(max. 192 KHz)
Preset memory
internal: 8 factory presets, 4 user presets;
additional presets on ID
Dimensions in mm
(W x H x D)
483 x 88 x 375
Weight 8,5
kg
