KME DA 428 Manual

DIGITAL CONTROLLER AMPLIFIER
14
Digital functionality: The K.M.E. DA 428
and DA 230 are fully digital multi-channel ampli-
fiers with comprehensive DSP features and four
(DA 230: two) Class D amplifier channels of the
newest generation. The DSP functions contain
matrix router, six fully parametric equalizers, two
crossover networks, high-/low-pass filter, delay,
dynamic processor with compressor/Peak RMS
limiter, gain control fixed or variable, and polarity.
All parameters as well as user navigation can be
managed using a simple 5-key navigation pad to-
gether with 4 rotary encoders. The sophisticated
user interface is completed by a graphic LCD dis-
DA 428
Electronic
max. output power @ 4 / 8 Ohm
Amplifier
Frequency range
S/N ratio (A-weighted/unweighted)
Input sensitivity
Crosstalk @ 1 kHz
Damping factor @ 1 kHz
THD @ 1 kHz
Voltage gain @ 4 / 8 Ohm
Slew rate, V/µs internal
Slew time, µs/V internal
Features
Protective circuits
Power consumption
Power requirements
Operation modes
Control panel
Connectors
Processor
DSP
Unit delay
Sampling
Digital input
Digital link (link / procedded out)
Preset memory
Dimensions (WxHxD) mm
Weight (kg)
play and 4 RGB LEDs informing about relevant
operation parameters, preset names and state of
the single channels. Practice oriented control fea-
tures make also complex adjustments on the de-
vice like preset settings easy. All settings can be
locked in different levels via the lock function and
can be saved from unwanted changed by entering
a password. Permanent monitoring of all relevant
parameters including log book functions like using
and power hour meter make it a perfect device for
rental companies.
DA 428
4 x 700 W / 400 W
four fully digital amplifiers with high efficiency,
about 90 %
20 Hz - 20 kHz
100 dB / 95 dB
analog 0 dB (775 mV)/ digital -12 dBFS/ with clean output channel, adjustable
> 90 dB
> 500
< 0,5 %
36 dB
> 70
<1,5
per channel: gain, digital crossovers, subsonic filter, parametric EQs, dynamic processor, polarity, delay, matrix router
for single channels: short circuit, DC on output, impedance undercut
for the device: under- / overvoltage, temperature, overload
2500 W
90 -250 Volt / 50 - 60 Hz, PowerCon In
stereo, mono, 4-channel (free routable)
ground free, navigation pad, 4 rotary encoders, 4 RGB LEDs, LCD-display, SD-card reader
line-in 4 x XLR, link-out 4 x XLR electrically balanced
(max. 4 x analogue or 2 x digital & 2 x analogue);
speaker output 4 x Speakon NL 4; RSNC-module
24 bit, 48 MHz clock
<1,5 ms
24 bit
AES/EBU & S/PDIF with format- / sample rate converter (max. 192 kHz)
same as input / 24 Bit, 48kHz, AES/EBU
internal: 12 presets, additional presets on SD card
483 x 88 x 375
8,5
The storage medium: In the amplifier is also im-
plemented a SD card reader in the front, this inter-
face enables to transfer K.M.E. preset files or firm-
ware updates (later software updates) saved on an
SD card efficiently to other devices. The internal
storage is devided into the free-programmable user
sector and the fixed factory sector.
The software: By means of an editor software
you can create independently your own presets
quickly on the computer, save this K.M.E. preset
files on a SD card and transfer it to the DA 428.
1
2
3
6 7
1 SD-card reader
2 4 RGB LED's
3 4 rotary encoders
4 LCD display
5 navigation pad
6 mains-connector & fuse,
ground-free switch
DA 230
2 x 1500 W / 750 W
two fully digital amplifiers with high efficiency,
about 90 %
40 dB
2600 W
stereo, mono, 2-channel (free routable)
line-in 2 x XLR, link-out 2 x XLR electronically balanced
(max. 2 x analogue or 1 x digital & 1 x analogue);
speaker output 2 x Speakon NL 4; RSNC-module
9
4 5
8
9
7 signal inputs (XLR):
4 x line-in, 4 x link-out
(max. 4 x analogue or 2 x digital
and 2 x analogue)
8 speaker output
4 x Speakon NL4
9 module slot (serial RS232)