Frequency Response - Electro-Voice PSX1000 Service Manual

OUTPUT CHARACTERISTICS mixer
OUTPUT
INSERT SEND CHANNEL
INSERT SEND MASTER
MAIN OUT
EQ OUT
MONO OUT
AUX ½ SEND
AUX 3 SEND
REC. SEND
PHONES
LAMP
OUTPUT CHARACTERISTICS power amplifier
nominal input nominal
voltage at load
Power Amp In impedan
ce
+ 6 dBu 8 ohms
+ 6 dBu 4 ohms
1
Dynamic Headroom test signal
) measured with a
STABILIZING of the power amplifier
Single channel, standard output voltage
stabilizing
stabilizing level

FREQUENCY RESPONSE

amplification frequency response (–3 dB dropped below the level of the standard frequency 1kHz):
input
POWER AMP IN
MIC
LINE
others
distortion-limited transmission range (effective bandwidth) of the power amplifier:
Input f (u)
Power Amp Input 25 Hz
NON-LINEAR AMPLITUDES (single channel)
power amplifier
input = Power Amp In
nominal overall distortion
standard overall distortion
IMD-SMPTE
DIM 30
DIM 100
nominal output
level (dBu)
0
- 6
+ 6
+ 6
+ 6
0
0
- 7,8 ( -10 dBV)
–2 / 200 ohms
12 V DC/2.4 watts
nominal max. output
output power, power, single
single channel
THD < 0.1 % THD = 1 %
250 watts 340 watts
500 watts 570 watts
, according IHF-A: 1 kHz Burst, 20 ms On, 480 ms Off
output
SPEAKER L&R
MAIN OUT L&R
SPEAKER L&R
all other outputs
f (o)
50 kHz THD –0.4 %, 1/2 nominal output capacity at 4 ohms, MBW – 500
kHz
power amplifier
R(L) = 8 ohms
< 0.03 % / 0.1 %
< 0.03 % / < 0.03 %
< 0.01 %
< 0.01 %
< 0.01 %
max. output level output impedance
(dBu)
+ 20
+ 20
+ 20
+ 20
+ 20
+ 20
+ 20
+ 16
+ 18 / 200 ohms
---
max.
single
channel channel
output
1
power)
360 watts
680 watts
8 ohms
0.57 %
0.05 dB
f (u) at –3 dB
30 Hz
15 Hz
15 Hz
15 Hz
notes
power amplifier
R(L) = 4 ohms
< 0.05 % / 0.2 %
< 0.05% / < 0.05 %
< 0.015 %
< 0.015 %
< 0.015 %
2
output wiring
75 ohms unbalanced
75 ohms unbalanced
75 ohms GND-sense
75 ohms GND-sense
75 ohms GND-sense
75 ohms GND-sense
75 ohms GND-sense
1 k ohm unbalanced
47 ohms unbalanced
--- ---
nominal max.
output output
voltage voltage, no
load
44.7 V 58 V
44.7 V 58 V
4 ohms
1 %
0.09 dB
f (o) at –3 dB
54 kHz
90 kHz
60 kHz
80 kHz
notes
MBW=80 kHz,
f=1kHz / 10 kHz
MBW=80 kHz,
f=1kHz / 10 kHz
60 Hz, 7 kHz
3.15 kHz, 15 kHz
3.15 kHz, 15 kHz
max.
output
voltage
THD = 1
%
53.6 V
47.7 V