Amplifier

Stereo PA amplifier, 700 W, with integrated limiter.
LCD for indicating temperature, operating mode, power
2 operating modes can be selected (stereo or bridged)
Limiter function can be activated as required
Temperature-controlled fan
2 level controls
Ground lift function
Speaker switch-on delay
Protective circuit with LED indication for protection against short circuit and overheating
Each channel with LEDs for indicating limiter, level and signal
tastenwelt 02/2012
"The plastic housings are of neat workmanship ... the MMX-842USB is a good choice ... the STA-225 features all standard protective circuits, even a clip limiter can be activated as required. A display shows useful information on the operation. The system tested provided a really appealing sound: a nice deep bass reproduction and a clear midrange of the 12" speakers and a full and clear reproduction of the high frequencies, too. With the support of a subwoofer, the volume which can be achieved is already sufficient to show a great performance at smaller to medium-sized events. Neither the active bass speaker nor the passive top parts provide an unpleasant or even overstrained sound."
(PA setup of PAB-112MK2, PSUB-115AK, STA-225, MMX-842USB)

Tekniset tiedot

Channels 2
Zones -
Power rating 700 W
Power rating at 2 ohms -
Power rating at 4 ohms 2 x 350 W rms
Power rating at 8 ohms 2 x 250 W rms
Power rating at 100 V -
Power rating with 4 ohms bridged operation -
Power rating with 8 ohms bridged operation 1 x 700 W rms
Peak music power output (PMAX) 1,000 W
Output impedance -
Inputs 1.3 V/10 kohms
Attenuation factor
Frequency range 10-50,000 Hz
Crossover network -
Crossover frequency -
Integrated limiter yes
Equalizer bass -
Equalizer midrange -
Equalizer treble -
S/N ratio > 80 dB
Crosstalk attenuation > 50 dB
THD < 0.1%
Power supply ˜ 230 V/50 Hz/1,500 VA
Mains voltage ˜ 230 V
Mains frequency 50 Hz
Power consumption, operation 1,500 VA
Power consumption, standby -
Standby current -
Operating voltage (possible alternative) -
Power supply (possible alternative) -
Admiss. ambient temp. 0-40 °C
Dimensions 482 x 100 x 330 mm, 2 RS
Width 482 mm
Height 100 mm
Depth 330 mm
Rack spaces, RS 2
Weight 10.3 kg
Connections 1 x 3-pole XLR L/R, bal.
1 x 6.3 mm jack L/R, bal.
3 x SPEAKER
2 x pair of screw terminals