H A L F P O W E R S T R E S S
1/2 Manufacturer Spec - Tested at 150 W into 4 ohms
TEMPERATURE
0
F
Idle
5min
15min
30min
Front Power Switch
75
80
90
96
Front Input Jack
74
80
86
93
Rear Power Jack
74
81
90
104
Rear Speaker Jack
77
83
96
98
Power Transformer
77
95
105
116
Output Transformer
76
88
94
119
Middle KT88 Retainer
95
117
155
144
Fan noise
Ambient
52 dB SPL
Fan Low
57 dB SPL
Fan High
64 dB SPL
Signal interrupt (sec)
0
0
0
0
Thermal shutdown (sec)
0
0
0
0
POWER
TESTS
bass
gear
POWER
CERTIFIED
8 ohms 1kHz
199 watts
MARKBASS
CLASSIC 300
F U L L P O W E R O U T P U T
Unregulated Line Voltage, Amplitude Sweep
3 to 5% Total Harmonic Distortion (THD)
Average initial AC line voltage 120.4 - 122.4
Nominal 8-ohm
Nominal 4-ohm
Nominal 2-ohm
1K SINE WAVE
Power
199 Watts
295 Watts
266 Watts
Input Signal
1.0 Volts
1.0 Volts
1.0 Volts
Voltage drop
0.7 Volts
0.6 Volts
1.0 Volts
G STRING @ 98Hz
Power
199 Watts
288 Watts
263 Watts
Input Signal
0.6 Volts
1.0 Volts
1.0 Volts
Voltage drop
0.7 Volts
0.9 Volts
1.0 Volts
D STRING @ 73Hz
Power
195 Watts
286 Watts
263 Watts
Input Signal
0.6 Volts
1.0 Volts
1.0 Volts
Voltage drop
0.6 Volts
0.8 Volts
0.7 Volts
A STRING @ 55Hz
Power
193 Watts
288 Watts
251 Watts
Input Signal
0.6 Volts
0.9 Volts
0.6 Volts
Voltage drop
1.0 Volts
0.4 Volts
0.9 Volts
E STRING @ 41Hz
Power
196 Watts
272 Watts
251 Watts
Input Signal
0.7 Volts
0.8 Volts
0.4 Volts
Voltage drop
0.4 Volts
0.4 Volts
1.1 Volts
B STRING @ 31Hz
Power
193 Watts
278 Watts
244 Watts
Input Signal
0.6 Volts
0.8 Volts
0.4 Volts
Voltage drop
0.6 Volts
0.5 Volts
0.2 Volts
Manufacturer ratings: 300 / 300 / 300 watts at 8 / 4 / 2 ohms.
2 ohms 1kHz
266 watts
4 ohms 1kHz
295 watts
K E Y T O T E S T S
Half Power Stress:
How well does this head handle the heat?
Full Power Output:
These numbers are largely self-explanatory, but
please note that the Input Signal tells you what
input voltage was required to hit our mark, with
the EQ set to “optimally flat” and the gain stages
set for best THD performance using a 1 kHz signal.
Voltage Drop shows how much the AC line
voltage sagged during our testing.
Содержание CL 810
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