Crown k1 Manual Suplementario
K Series Service Manual
Rev A.
Specifications 2-1
©1999 Crown International, Inc.
All specifications relate to both Export and Domestic
units, regardless of voltage and frequency.
units, regardless of voltage and frequency.
2.1 Performance
Frequency Response
±0.25 dB from 20 Hz to 20 kHz. The frequency re-
sponse is band limited with an 8-Hz double-integrated
3rd-order Butterworth high-pass filter and a 30-kHz 7th-
order Gaussian low-pass filter.
±0.25 dB from 20 Hz to 20 kHz. The frequency re-
sponse is band limited with an 8-Hz double-integrated
3rd-order Butterworth high-pass filter and a 30-kHz 7th-
order Gaussian low-pass filter.
Output Power
Measured at 1 kHz with both channels driven to 0.1%
or less true THD.
Measured at 1 kHz with both channels driven to 0.1%
or less true THD.
K1
2 ohm Stereo: 750 watts per channel.
4 ohm Stereo: 550 watts per channel.
8 ohm Stereo: 350 watts per channel.
4 ohm Bridge Mono: 1,500 watts.
8 ohm Bridge Mono: 1,100 watts.
2 ohm Stereo: 750 watts per channel.
4 ohm Stereo: 550 watts per channel.
8 ohm Stereo: 350 watts per channel.
4 ohm Bridge Mono: 1,500 watts.
8 ohm Bridge Mono: 1,100 watts.
K2
2 ohm Stereo: 1,250 watts per channel.
4 ohm Stereo: 800 watts per channel.
8 ohm Stereo: 500 watts per channel.
4 ohm Bridge Mono: 2,500 watts.
2 ohm Stereo: 1,250 watts per channel.
4 ohm Stereo: 800 watts per channel.
8 ohm Stereo: 500 watts per channel.
4 ohm Bridge Mono: 2,500 watts.
8 ohm Bridge Mono: 1,600 watts.
Signal-to-Noise Ratio
Greater than 100 dB below rated power, A-weighted.
Greater than 100 dB below rated power, A-weighted.
Voltage Gain
1.4 VRMS input sensitivity or a fixed gain of 26 dB
(back panel switchable).
1.4 VRMS input sensitivity or a fixed gain of 26 dB
(back panel switchable).
Damping Factor
Greater than 3,000 from 10 Hz to 400 Hz.
Greater than 3,000 from 10 Hz to 400 Hz.
Line Voltage Requirements
Universal power supply can be configured to operate
with 100, 120, 200, 230, 240 or 250 VAC at 50 or 60 Hz.
Universal power supply can be configured to operate
with 100, 120, 200, 230, 240 or 250 VAC at 50 or 60 Hz.
2.2 Controls
Level
A calibrated rotary level control for each channel lo-
cated on the front panel. Each control is labeled from 0
to 100 dB of voltage attenuation.
A calibrated rotary level control for each channel lo-
cated on the front panel. Each control is labeled from 0
to 100 dB of voltage attenuation.
Power
An on/off rocker switch located on the front panel.
An on/off rocker switch located on the front panel.
Input Sensitivity
A two–position switch for each channel, located on the
back panel near each channel’s input connectors. Can
be set to 1.4 V for full output power into an 8-ohm load
or a fixed voltage gain of 26 dB.
A two–position switch for each channel, located on the
back panel near each channel’s input connectors. Can
be set to 1.4 V for full output power into an 8-ohm load
or a fixed voltage gain of 26 dB.
Bridge Output
An on/off switch located on the back panel between
the input connectors. This switch, when turned on,
bridges the two outputs with the channel one input sig-
nal.
An on/off switch located on the back panel between
the input connectors. This switch, when turned on,
bridges the two outputs with the channel one input sig-
nal.
“Y” Input
An on/off switch located on the back panel between
the input connectors. This switch, when turned on, par-
allels the two input channels.
An on/off switch located on the back panel between
the input connectors. This switch, when turned on, par-
allels the two input channels.
2.3 Indicators
Thermal
A red LED for each channel which turns on with a dim
glow shortly before the amplifier needs help dissipat-
ing heat. The LED will turn brighter as the Thermal Level
Control (TLC) protection is activated.
A red LED for each channel which turns on with a dim
glow shortly before the amplifier needs help dissipat-
ing heat. The LED will turn brighter as the Thermal Level
Control (TLC) protection is activated.
Clip
An orange LED for each channel which turns on when
distortion of any type becomes audible in the amplifier
output.
An orange LED for each channel which turns on when
distortion of any type becomes audible in the amplifier
output.
IOC
A yellow LED for each channel which serves as a dis-
tortion indicator. This indicator will light long before the
distortion is audible. The IOC indicators include a pulse–
stretching feature that helps make them more notice-
able, even with rapid transient signals.
A yellow LED for each channel which serves as a dis-
tortion indicator. This indicator will light long before the
distortion is audible. The IOC indicators include a pulse–
stretching feature that helps make them more notice-
able, even with rapid transient signals.
Signal
A green LED for each channel which flashes dimly when
a very low–level signal (as low as 10 mW) is present in
the output. They flash brightly when a louder signal (at
least 1 watt) is present at the output.
A green LED for each channel which flashes dimly when
a very low–level signal (as low as 10 mW) is present in
the output. They flash brightly when a louder signal (at
least 1 watt) is present at the output.
Enable
A green LED that turns on when the amplifier has been
turned on and has power. When first turned on, there
will be a brief two–second delay while the amplifier
performs a quick turn–on diagnostic. Then the Enable
indicator will turn on to its full brightness. If no signal is
present, the Enable indicator will switch to a dim level.
A green LED that turns on when the amplifier has been
turned on and has power. When first turned on, there
will be a brief two–second delay while the amplifier
performs a quick turn–on diagnostic. Then the Enable
indicator will turn on to its full brightness. If no signal is
present, the Enable indicator will switch to a dim level.
2 Specifications