The MA4.2s is one of
a range of power amplifiers that have been designed to combine reliability
and high power with sonic excellence. Utilising an advanced switch mode
power supply, the amplifier is characterised by a very high power-to-weight
ratio in a lightweight, 2U package. The innovative technology at the heart
of the MA4.2s enables it to set new standards in terms of sonic accuracy,
impact and clarity.
features
 Switch
mode power supply
Superior
sonic performance
Light
weight
Advanced
protection circuits
Efficient
copper cooling system
Minimum
load switches (MLS™)
applications
Live
sound reinforcement
Fixed
installations
TECHNICAL SPECIFICATIONS
| MAX
OUTPUT POWER |
|
| EIA
AT 1kHz AND 1% THD |
|
| MLS
in 0dB position |
|
| 8
PER CHANNEL |
1300
W |
| 4
PER CHANNEL |
2300
W |
| 2
PER CHANNEL |
2900
W |
| 8
BRIDGED |
4600
W |
| 4
BRIDGED |
5800
W |
| MAX
OUTPUT VOLTAGE |
|
| 8Ω
LOAD |
102
Vrms |
| PEAK
VOLTAGE, NO LOAD |
145
V |
| DISTORTION |
|
| THD
20Hz – 20kHz AND I W TO FULL POWER |
0.1% |
| THD
AT 1kHz AND –1dB UNDER CLIP |
0.04% |
DIM
AT –3dB UNDER CLIP
|
0.04% |
| HUM
AND NOISE |
<-105dB |
| CHANNEL
SEPARATION @ 10kHz |
80dB |
| OUTPUT
IMPEDANCE |
60
mΩ |
| SLEW
RATE |
20
V/µs |
| INPUT |
|
| GAIN
SELECTABLE (dB) |
20,
23, 26, 29, 32, 35, 38, 41 |
| IMPEDANCE |
10
kΩ |
| COMMON
MODE REJECTION |
50dB |
FRONT
PANEL
|
|
| GAIN
CONTROLS |
31
position detent |
| INDICATORS:
PROTECT |
Yellow
LED |
| INDICATORS:
CLIP |
Red
LED |
| INDICATORS:
SIGNAL PRESENT (-40dB) |
Green
LED |
| REAR
PANEL |
|
| INPUT
CONNECTORS |
Neutrik
Combo |
| LINK
CONNECTORS |
XLR-Male |
| CLIP
LIMITERS |
On/off
each channel |
| MLS
SWITCH |
0,
-2, -4, -5dB |
| LINK
- SWITCH |
CH.
A-B |
| POWER |
|
| OPERATION
VOLTAGE |
130-270V |
| SOFT
START |
Yes |
| PEAK
INRUSH CURRENT |
5
A |
| FULL
OUTPUT POWER |
180
- 260 V |
| MIN
START VOLTAGE |
175
V |
| 115V
OPTION |
Yes
|
| CURRENT
DRAW AT 4Ω/230V |
|
| QUIESCENT
POWER (NO LOAD) |
0.6
A rms |
| 1/8
OF FULL POWER (-9dB) |
6
A rms |
| 1/3
OF FULL POWER (-5dB) |
14
A rms |
| AT
FULL POWER (0dB) @ 1kHz 1%THD |
26
A rms |
| DIMENSIONS |
|
| WIDTH |
483mm
(19ins) |
| HEIGHT |
88mm
(3.5ins) 2U |
| DEPTH
(incl. handles) |
393mm
(15.5ins) |
| WEIGHT |
10kg
(22lbs) |
|
|
