Crown dc-300a ii 参考指南
DC-300A II
Power Amplifier
Page 21
10
100
1 K
10 K
100 K
FREQUENCY (Hz)
1
0.1
–15
–30
–45
–60
0
15
Phase
Shift
(degrees)
16 ohms
8 ohms
4 ohms
Fig. 6.5 Nominal Phase Response (1 Watt)
10
100
1 K
10 K
100 K
FREQUENCY (Hz)
1
70%
EFFICIENCY
60%
50%
40%
30%
1
2
1 SINGLE CHANNEL DRIVEN
2 BOTH CHANNELS DRIVEN
10
100
1 K
10 K
100 K
FREQUENCY (Hz)
1
–60
–80
–100
–120
dB
Fig. 6.6 Nominal Crosstalk (Channel 1 at 150 watts and Channel 2 at Maximum Output)
Fig. 6.7 Nominal Power Efficiency (120 VAC Mains and Both Channels Driven)