Technical specifications 7.1 specifications, 2 caution for speaker connection – Nilfisk-ALTO MACRO 2400 User Manual
Page 11
7. TECHNICAL SPECIFICATIONS
7.1 Specifications
ELECTRICAL SPECIFICATIONS
INPUT SENSITIVITY
INPUT IMPEDANCE
FREQUENCY RESPONSE
(at 10dB below rated output power)
VOLTAGE GAIN
DISTORTION(SMPTE-1M)
S/N ratio
Full short circuit, open circuit, thermal, ultrasonic, and RF protection stable into reactive
or mismatched loads, turn ON/OFF, muting, tried crowbar.
GENERAL SPECIFICATIONS
PROTECTIONS
CONTROLS
INDICATORS
CONNECTORS
POWER SUPPLY
DIMENSIONS
WEIGHT
Front: AC switch 40-detect input level control for each channel.
Rear: stereo/ parallel/ bridged selector, 30Hz filter selector clip ON/OFF selector.
SIGNAL: 2
green LED
CLIP:
2
red LED
POWER: 1 green LED
INPUT : Active balanced XLR and 1/4"(6.3mm)TRS
OUTPUT: "Touch-proof" binding posts and speak-on jacks.
Available for 110-120V or 220~240V AC, 50/60Hz
483
400
88.8mm(W
D
H)
13.6kg
15.6kg
19kg
600W
600W
900W
900W
1500W
1500W
1.15V(+3.4dBu)
10K
Unbalanced
20K
Balanced
25Hz~25KHz +0/-1dB
-3dB points: 5Hz~50KHz
1.15V(+4dBu)
30dB
<0.03%
32dB
34dB
<0.03%
<0.03%
100dB
100dB
100dB
1.15V(+3.4dBu)
4 Ohms
4 Ohms
2 Ohms
8 Ohms
8 Ohms
POWER SPECIFICATIONS
MACRO830
480
300
205
560
800
800
450
310
900
1400
MACRO1400
MACRO2400
1400
750
575
1500
2500
STEREO MODE
(Both channels driven)
20Hz~20KHz
Bridge Mono Mode
20Hz~20kHz
PROTECTION: 1 red LED
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
a speaker system that has sufficient input capacity.
If the input capacity of your speaker system is lower than the rated output of the MACRO 830/1400/2400
Professional Stereo Amplifier, you can protect your speakers by connecting a fuse serially between the
speaker and the amplifier as shown below.
6.2 Caution for Speaker Connection
The output capacity of out MACRO 830/1400/2400 Professional Stereo Amplifier is very high, be sure to use
10
Output
Fuse
(+)
(-)
+
-
Speaker
System
PROFESSIONAL HIGH POWER STEREO AMPLIFIER
CH-A
CH-B
CLIP
SIG
POWER
ON
OFF
CLIP
SIG
PROT
MACRO2400
CH-A
CH-B
CLIP
SIG
POWER
ON
OFF
CLIP
SIG
PROT
LTO
R
R