3
TDA 270
TDA 290
total music power
Watt
280
360
rms power (4 ohm)
Watt
2 x 50
2 x 75
rms power (2 ohm)
Watt
2 x 80
2 x 100
rms power (4 ohm, mono)
Watt
1 x 160
1 x 200
frequency response (-3dB)
Hertz
20
÷
30000
20
÷
30000
T.H.D.
%
0.15
0.13
S/N ratio
dB
90
90
high-pass cut (12 dB/oct)
Hertz
50
÷
250
50
÷
250
low-pass cut (12 dB/oct)
Hertz
50
÷
250
50
÷
250
bass boost gain @ 50Hz
dB
0/+6/+12
0/+6/+12
RCA input sensitivity
Volt
0.2
÷
4
0.2
÷
4
RCA input impedance
Ohm
22 K
22 K
high-level input sensitivity
Volt
0.5
÷
17
0.5
÷
17
power supply
Volt
11
÷
15
11
÷
15
max power current
Ampere
19
27
internal fuses
Ampere
1 x 25
1 x 30
TDA 470
TDA 490
total music power
Watt
560
720
rms power (4 ohm)
Watt
4 x 50
4 x 75
rms power (2 ohm)
Watt
4 x 70
4 x 90
rms power (4 ohm, mono)
Watt
2 x 140
2 x 180
rms power (4 ohm, 3-channel)
Watt
2 x 50 + 1x140
2 x 75 + 1x180
frequency response (-3dB)
Hertz
20
÷
30000
20
÷
30000
T.H.D.
%
0.15
0.13
S/N ratio
dB
90
90
high-pass cut (12 dB/oct)
Hertz
50
÷
250
50
÷
250
low-pass cut (12 dB/oct)
Hertz
50
÷
250
50
÷
250
bass boost gain @ 50Hz
dB
0/+6/+12
0/+6/+12
remote bass boost (on CH3/CH4)
dB
0
÷
12
0
÷
12
RCA input sensitivity
Volt
0.2
÷
4
0.2
÷
4
RCA input impedance
Ohm
22 K
22 K
high-level input sensitivity
Volt
0.5
÷
17
0.5
÷
17
power supply
Volt
11
÷
15
11
÷
15
max power current
Ampere
42
52
internal fuses
Ampere
2 x 30
2 x 30
DATI TECNICI -
TECHNICAL DATA
