Nilfisk-ALTO MAC 2.3 Stereo Amplifier User Manual


 
7. TECHNICAL SPECIFICATIONS
7.1 Specifications
ELECTRICALSPECIFICATIONS
INPUTSENSITIVITY
INPUTIMPEDANCE
FREQUENCYRESPONSE
(at10dB belowrated outputpower)
VOLTAGE GAIN
DISTORTION(SMPTE-1M)
S/N ratio
Fullshort circuit,open circuit,thermal, ultrasonic, andRFprotection stableinto reactive
ormismatched loads,turn ON/OFF,muting,tried crowbar.
GENERALSPECIFICATIONS
PROTECTIONS
CONTROLS
INDICATORS
CONNECTORS
POWERSUPPLY
DIMENSIONS
WEIGHT
Front:ACswitch 40-detectinputlevel controlfor eachchannel.
Rear:stereo/ parallel/bridged selector, 30Hzfilterselector clipON/OFF selector.
SIGNAL:2 greenLED
CLIP: 2 redLED
POWER:1BlueLED
INPUT:Activebalanced XLRand 1/4"(6.3mm)TRS
OUTPUT:"Touch-proof" bindingposts andspeak-onjacks.
Availablefor 110-120V or220~240VAC,50/60Hz
483(W) 400(D) 88.8(H)mm
14.4kg 16.54kg 19.02kg
600W
600W
900W
900W
1500W
1500W
1.15V(+3.4dBu)
10K Unbalanced 20K Balanced
25Hz~25KHz +0/-1dB
-3dBpoints: 5Hz~50KHz
1.15V(+3.4dBu)
30dB
<0.03%
32dB 34dB
<0.03% <0.03%
100dB 100dB 100dB
1.15V(+3.4dBu)
4Ohms
4Ohms
2Ohms
8Ohms
8Ohms
POWERSPECIFICATIONS
MAC2.2
480
300
205
560
800
800
450
310
900
1400
MAC2.3
MAC2.4
1400
750
575
1500
2500
STEREO MODE
(Both channels driven)
20Hz~20KHz
Bridge Mono Mode
20Hz~20kHz
PROTECTION:1 redLED
As to the speaker cable, if you use a long one, use as thick a cable as possible to prevent deterioration of the
damping factor or power loss inside the cable.
Use the following formula to determine the fuse capacity according to the speaker's input capacity.
Po=I R I= Po/R
2
Po[W] : Speaker's continuous input capacity (noise or RMS)
R[ ] : Speaker's nominal impedance
I[A] : Required fuse capacity
6.2 Caution for Speaker Connection
The output capacity of MAC 2.2/2.3/2.4 stereo power amplifier is very high, be sure to use a speaker system that has
sufficient input capacity. If the input capacity of your speaker system is lower than the rated output of the MAC 2.2/
2.3/2.4 stereo power amplifier, you can protect your speakers by connecting a fuse serially between the speaker and
the amplifier as shown below.
10
Output
Fuse
(+)
(-)
+
-
Speaker
System
POWER
ON
OFF
CLIP
SIG
CLIP
SIG
CH1 CH2