Crown i-t4000 Folleto
www.crownaudio.com
P.O. BOX 1000 · ELKHART, IN 46515-1000 U.S.A.
PHONE 574.294.8200 · FAX 574.294.8329
SPECIFICATIONS
Performance
Minimum Guaranteed Power:
See power grid.
See power grid.
Frequency Response (at 1 watt,
20 Hz - 20 kHz): ±0.25dB.
20 Hz - 20 kHz): ±0.25dB.
Signal to Noise Ratio below rated
power, A-weighted: >105 dB
power, A-weighted: >105 dB
Total Harmonic Distortion (THD)
at full rated power: < 0.35%.
at full rated power: < 0.35%.
Intermodulation Distortion (IMD)
60 Hz and 7 kHz at 4:1, from full
rated output to –35 dB: < 0.35%.
60 Hz and 7 kHz at 4:1, from full
rated output to –35 dB: < 0.35%.
Damping Factor
(20 Hz to 100 Hz): > 5000.
(20 Hz to 100 Hz): > 5000.
Crosstalk (below rated power,
20 Hz to 1 kHz): > 80 dB.
20 Hz to 1 kHz): > 80 dB.
Common Mode Rejection
(CMR) (20 Hz to 1 kHz): > 50 dB.
(CMR) (20 Hz to 1 kHz): > 50 dB.
DC Output Offset: < ± 3 mV.
Input Impedance (nominal):
20 kilohms balanced,
10 kilohms unbalanced.
20 kilohms balanced,
10 kilohms unbalanced.
Maximum Input Level: +15
dBu or +22 dBu, depending
on input sensitivity.
dBu or +22 dBu, depending
on input sensitivity.
Latency (analog, digital inputs):
1.13 mS analog,
1.81 mS digital (96 kHz).
1.13 mS analog,
1.81 mS digital (96 kHz).
A/D, D/A Converters: 24-bit 96 kHz
Cirrus Logic.
Cirrus Logic.
Digital Input: AES/EBU, 16-24 bit,
32-48 kHz. Onboard sample rate
converter.
32-48 kHz. Onboard sample rate
converter.
Network: Onboard TCP/IQ, compati-
ble with standard 100 Mb Ethernet
hardware.
ble with standard 100 Mb Ethernet
hardware.
DSP: 24-bit conversion with 32-bit,
floating-point DSP processing. Has
64 assignable filters with 9 different
filter types. Includes all-pass filters,
over 2 seconds of delay available
per channel, and dual uncorrelated-
noise and sine-wave generators.
floating-point DSP processing. Has
64 assignable filters with 9 different
filter types. Includes all-pass filters,
over 2 seconds of delay available
per channel, and dual uncorrelated-
noise and sine-wave generators.
Load Supervision: Monitors the
average impedance on the output
of the amplifier. If the impedance
falls outside the specified high/low
limits, this function alerts the user
via the front panel display, and via
the IQwic™ software when amp is
on an IQ Network.
average impedance on the output
of the amplifier. If the impedance
falls outside the specified high/low
limits, this function alerts the user
via the front panel display, and via
the IQwic™ software when amp is
on an IQ Network.
Error Reporting: Reports clip errors,
thermal errors, fault conditions and
load monitoring errors for each chan-
nel via the front panel display and via
IQwic software when amp is on an
IQ Network.
thermal errors, fault conditions and
load monitoring errors for each chan-
nel via the front panel display and via
IQwic software when amp is on an
IQ Network.
Attenuators: Speed sensitive, con-
tinuously variable rotary encoder, 0.5
dB steps, range 0 to –90 dB.
tinuously variable rotary encoder, 0.5
dB steps, range 0 to –90 dB.
Load Impedance
(Note: Safe with all types of loads):
Stereo: 1/2/4/8/16 ohms.
Bridge Mono: 2/4/8 ohms.
(Note: Safe with all types of loads):
Stereo: 1/2/4/8/16 ohms.
Bridge Mono: 2/4/8 ohms.
Input Sensitivity (referenced to 8
ohm rated output): Adjustable in
0.1V steps from 1.4V to 7.75V.
ohm rated output): Adjustable in
0.1V steps from 1.4V to 7.75V.
AC Line Connector: Five cordsets
supplied with amplifier (USA, UK,
European, Australia, India).
supplied with amplifier (USA, UK,
European, Australia, India).
Voltage Gain
(referenced to 8 ohm rated output):
I-T4000: 37.1 dB to 22.2 dB
I-T6000: 37.9 dB to 23.0 dB
I-T8000: 39.3 dB to 24.5 dB
(referenced to 8 ohm rated output):
I-T4000: 37.1 dB to 22.2 dB
I-T6000: 37.9 dB to 23.0 dB
I-T8000: 39.3 dB to 24.5 dB
Required AC Mains: Universal AC
input, 100-240VAC, 50/60 Hz (±15%).
Maximum AC mains voltage 277VAC.
input, 100-240VAC, 50/60 Hz (±15%).
Maximum AC mains voltage 277VAC.
Front Panel Controls
and Indicators
and Indicators
Bridge Mode Indicator: Yellow LED
illuminates when the LCD control
screen is set to Bridge-Mono mode.
illuminates when the LCD control
screen is set to Bridge-Mono mode.
Ready Indicator: Green LED, one
per channel, illuminates when the
channel is initialized and ready
to produce audio output. Indicator is
off when the amplifier is in standby
mode via the IQ system.
per channel, illuminates when the
channel is initialized and ready
to produce audio output. Indicator is
off when the amplifier is in standby
mode via the IQ system.
Signal Indicators: Three green
LEDs per channel indicate the ampli-
fier’s input and output signal levels.
LEDs per channel indicate the ampli-
fier’s input and output signal levels.
Signal: input signal is above –40 dBu.
–20 dB: amplifier output is 20 dB
below clipping.
–10 dB: amplifier output is 10 dB
below clipping.
–20 dB: amplifier output is 20 dB
below clipping.
–10 dB: amplifier output is 10 dB
below clipping.
Clip Indicator: Red LED, one per
channel, illuminates when the chan-
nel’s output signal reaches the onset
of audible clipping. The Clip Indicator
also will illuminate during Thermal
Level Control (TLC) limiting or when
the input compressor/limiter is protect-
ing the amplifier from input overload.
channel, illuminates when the chan-
nel’s output signal reaches the onset
of audible clipping. The Clip Indicator
also will illuminate during Thermal
Level Control (TLC) limiting or when
the input compressor/limiter is protect-
ing the amplifier from input overload.
Thermal Indicator: Red LED, one
per channel, illuminates when the
channel has shut down, or is very
near shutting down, due to thermal
stress or overload.
per channel, illuminates when the
channel has shut down, or is very
near shutting down, due to thermal
stress or overload.
Fault Indicator: Red LED, one per
channel, flashes when the amplifier
output channel has stopped operating.
channel, flashes when the amplifier
output channel has stopped operating.
Data Indicator: Yellow LED indicates
IQ Network data activity. Data indica-
tor flashes only when the amplifier
is polled for data, or is polled to see
whether it is online.
IQ Network data activity. Data indica-
tor flashes only when the amplifier
is polled for data, or is polled to see
whether it is online.
Power Indicator: Blue LED indicates
amplifier has been turned on and AC
power is available. The LED will flash
when the AC line voltage is 15%
above or below the nominal rated
value.
amplifier has been turned on and AC
power is available. The LED will flash
when the AC line voltage is 15%
above or below the nominal rated
value.
AC Mains Present Indicator: Green
indicator built into power switch indi-
cates AC power present at the power
cord and the amplifier circuit braker
is in the “on” position.
indicator built into power switch indi-
cates AC power present at the power
cord and the amplifier circuit braker
is in the “on” position.
LCD Control Screen and Controls:
These let the user adjust the amplifi-
er’s attenuation and muting, config-
These let the user adjust the amplifi-
er’s attenuation and muting, config-
ure the amp, set up error monitoring
(such as temperature and load
supervision), and recall DSP presets.
The presets allow the user to quickly
reconfigure the amp for various
applictions.
(such as temperature and load
supervision), and recall DSP presets.
The presets allow the user to quickly
reconfigure the amp for various
applictions.
LCD Control Screen: Integrated LCD
with white LED backlight, controls
amplifier setup and operation.
with white LED backlight, controls
amplifier setup and operation.
Normal mode: Attenuation in 0.5 dB
steps, Mute/Unmute, Front Panel
Lockout.
steps, Mute/Unmute, Front Panel
Lockout.
Basic Menu: LCD Contrast, CH1
Sensitivity, CH2 Sensitivity, Speaker
Preset, Dual/Bridge mode, Input Y.
Sensitivity, CH2 Sensitivity, Speaker
Preset, Dual/Bridge mode, Input Y.
Advanced Features Menu: Attenuator
Limits, Attenuator Link, Clip Limiter,
Peak Voltage Limiter, Average Power
Limiter, Pink Noise Generator,
AES/EBU Input Trim, Input Source,
Maximum Analog Input, Amplifier
Label Edit, CH1 Label
Edit, CH2 Label Edit.
Limits, Attenuator Link, Clip Limiter,
Peak Voltage Limiter, Average Power
Limiter, Pink Noise Generator,
AES/EBU Input Trim, Input Source,
Maximum Analog Input, Amplifier
Label Edit, CH1 Label
Edit, CH2 Label Edit.
Menu/Exit Button: “Menu” enters the
main menu. “Exit” gets out of the
Menu.
main menu. “Exit” gets out of the
Menu.
Next Button: Selects the next item in
the Menu.
the Menu.
Prev Button: Selects the previous
item in the Menu.
item in the Menu.
Level Controls (Encoders): These
two knobs affect the Channel-1 and
Channel-2 output levels. They also
select Menu items and adjust
parameter values that are displayed
on the LCD Control Screen.
two knobs affect the Channel-1 and
Channel-2 output levels. They also
select Menu items and adjust
parameter values that are displayed
on the LCD Control Screen.
Power Switch: Push-on/push-off
switch with built-in green AC mains
present indicator.
switch with built-in green AC mains
present indicator.
Back Panel Controls,
Indicators and Connectors
Indicators and Connectors
Power Cord Connector: Standard
20 amp IEC inlet. Voltage range is
indicated above IEC inlet.
20 amp IEC inlet. Voltage range is
indicated above IEC inlet.
Reset Switch/Circuit Breaker: If the
current draw of the amplifier exceeds
safe limits, this braker automatically
disconnects the power supply from
the AC mains. The switch resets the
circuit braker.
current draw of the amplifier exceeds
safe limits, this braker automatically
disconnects the power supply from
the AC mains. The switch resets the
circuit braker.
Output Connectors: Two high-cur-
rent, 50A Neutrik
rent, 50A Neutrik
®
Speakon
®
NL4MLP (mates with NL4FC), one
per channel. Two pairs of high-cur-
rent, 60A color-coded 5-way binding
per channel. Two pairs of high-cur-
rent, 60A color-coded 5-way binding
posts (for banana plugs,
spade lugs or bare wire). Two
male XLR passive analog
loop through. XLR active/re-
clocked AES/EBU digital
loop through.
spade lugs or bare wire). Two
male XLR passive analog
loop through. XLR active/re-
clocked AES/EBU digital
loop through.
Analog Input Connectors: A
3-pin female XLR connector
for each channel.
3-pin female XLR connector
for each channel.
Digital Input Connector: A
3-pin female XLR connector
3-pin female XLR connector
that accepts a digital signal in the
AES/EBU format.
AES/EBU format.
Ground Lift Switch: Isolates input
ground from AC ground.
ground from AC ground.
Ethernet Connector: This connector
accepts an RJ-45 connector for IQ
TCP/IQ networking from a standard
network cable. Built into the connec-
tor is a yellow LINK ACT indicator
that shows network activity, and a
green 100Mb indicator that shows a
100Mb network connection.
accepts an RJ-45 connector for IQ
TCP/IQ networking from a standard
network cable. Built into the connec-
tor is a yellow LINK ACT indicator
that shows network activity, and a
green 100Mb indicator that shows a
100Mb network connection.
Data Indicator: Yellow LED indicates
IQ Network data activity. Data indica-
tor flashes only when the amplifier is
polled for data, or is polled to see
whether it is online.
IQ Network data activity. Data indica-
tor flashes only when the amplifier is
polled for data, or is polled to see
whether it is online.
Preset Indicator: Yellow LED flashes
to signal the number of the current
preset if active.
to signal the number of the current
preset if active.
Construction
Cooling: Dual-zone, microprocessor
controlled, continuously variable
speed fans, front-to-back airflow.
controlled, continuously variable
speed fans, front-to-back airflow.
Front Panel: Cast aluminum with
integrated handles.
integrated handles.
Dimensions: 19 in. (48.3 cm) W x 3.5
in. (8.9 cm) H x 16.2 in. (41.1 cm) D.
in. (8.9 cm) H x 16.2 in. (41.1 cm) D.
Weight: 28 lbs (12.7 kg) net, 36 lbs
(16.3 kg) shipping.
(16.3 kg) shipping.
Included Accessories: Rear rack
ears with integral EZ-Rack Pin, rack
screws, operation manual, power
cords, foam air filter.
ears with integral EZ-Rack Pin, rack
screws, operation manual, power
cords, foam air filter.
POWER OUTPUT
STEREO
MONO
8 Ohm
4 Ohm
2 Ohm
8 Ohm
4 Ohm
I-T8000
2100 W
4000 W
3500 W
8000 W
7000 W
I-T6000
1500 W
3000 W
2500 W
6000 W
5000 W
I-T4000
1250 W
2000 W
1800 W
4000 W
3600 W
TRADEMARKS NOTICE: Crown, Crown Audio, BCA, IQ, IQ System, Macro-
Tech and Micro-Tech are registered trademarks; Studio Reference, IQwic
and TCP/IQ are trademarks of Crown International.
Neutrik, Speakon, CobraNet and JBL are used for information only and are
the property of their respective companies.
Tech and Micro-Tech are registered trademarks; Studio Reference, IQwic
and TCP/IQ are trademarks of Crown International.
Neutrik, Speakon, CobraNet and JBL are used for information only and are
the property of their respective companies.
Guaranteed minimum power output per channel, 20 Hz to 20 kHz, <0.35% true THD, both chan-
nels driven. Rated power not part-tolerance dependent.
nels driven. Rated power not part-tolerance dependent.
Crown Audio
®
, Inc. reserves the right to make changes in specifications, software, or
products without prior notice. Crown Audio, Inc. also assumes no responsibility for any
error in type or print reproduction of the features or specifications in this literature.
error in type or print reproduction of the features or specifications in this literature.
©2004 Crown Audio, Inc.
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