Crown CCA 1160A, Catalog

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T O U R I N G
• 45
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SPECIFICATIONS
Performance
Frequency Response (at 1 watt, 20 Hz - 20 kHz):
±0.25 dB.
Signal to Noise Ratio (below rated full-bandwidth
power, A-weighted):
> 105 dB.
Total Harmonic Distortion (THD) 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%.
Damping Factor (20 Hz to 100 Hz, 8 ohms): > 5000.
Crosstalk (below rated power, 20 Hz to 1 kHz):
> 80 dB.
Common Mode Rejection (CMR) (20 Hz to 1 kHz):
> 50 dB.
DC Output Offset (shorted input): < ±3 mV.
Input Impedance (nominal): 20 kilohms balanced, 10
kilohms unbalanced.
Maximum Input Level: +15 dBu or +22 dBu, depend-
ing on input sensitivity.
Latency (analog, digital inputs): 1.13 mS analog, 1.81
mS digital (96 kHz).
A/D, D/A Converters: 24-bit 96 kHz Cirrus Logic.
Digital Input: AES/EBU, 24-bit, 32-96 kHz. Onboard
sample rate converter.
Network: Onboard HiQnet and TCP/IQ, compatible
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.
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
System Architect
®
or IQwic™ software when amp is
on a HiQnet™ or IQ
®
Network.
Error Reporting: Reports clip errors, thermal errors,
fault conditions and load monitoring errors for each
channel via the front panel display and via Harman Pro
System Architect or IQwic software when amp is on a
HiQnet or IQ Network.
Attenuators: Speed-sensitive rotary encoders,
0.5 dB steps, range 0 to –100 dB.
Load Impedance (Note: Safe with all types of loads):
Stereo: 1/2/4/8/16 ohms.
Bridge Mono: 2/4/8 ohms.
Input Sensitivity for rated output/8 ohms: Adjustable
in 0.1V steps from 1.4V to 7.75V.
Voltage Gain:
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.
Front Panel Controls and Indicators
Power Switch: Push-on/push-off switch with built-in
green AC mains present indicator.
LCD Control Screen and Controls: These let the user
adjust the amplifier’s attenuation and muting, configure
the amp, set up and view error monitoring (such as
temperature and load supervision), and recall DSP pre-
sets. The presets allow the user to quickly reconfigure
the amp for various applications.
LCD Control Screen: Integrated LCD with white LED
backlight, controls amplifier setup and operation.
Normal mode: Attenuation in 0.5 dB steps, Mute/
Unmute, Front Panel Lockout.
Basic Menu: LCD Contrast, CH1 Sensitivity, CH2
Sensitivity, Speaker Preset, Dual/Bridge mode, Input Y.
Advanced 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, Meter Display
Type.
Monitor Menu: Speaker Load, Thermal %, AC Voltage,
Operating Time, Firmware, Manufacturing Info,
Networking, Thermal Errors, Clip Errors, Low Limit
Load Errors, High Limit Load Errors, Line Voltage
Errors.
Menu/Exit Button: “Menu” enters the main menu.
“Exit” gets out of the Menu.
Next Button: Selects the next item in the Menu.
Prev Button: Selects the previous 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.
Bridge Mode Indicator: Yellow LED illuminates when
the amplifier is set to Bridge-Mono mode.
Ready Indicator: Green LED, one per channel, illumi-
nates when the channel is initialized and ready to pro-
duce audio output. Indicator is off when the amplifier
is in standby mode via the control software.
Signal Indicators: Three green LEDs per channel indi-
cate the amplifier’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.
Clip Indicator: Red LED, one per channel, illuminates
when the channel’s output signal reaches the onset of
audible clipping. The Clip Indicator also will illuminate
during Thermal Level Control (TLC) limiting.
Thermal Indicator: Red LED, one per channel, illumi-
nates when the channel has shut down due to thermal
stress or overload.
Fault Indicator: Red LED, one per channel, flashes
when the amplifier output channel has stopped operat-
ing.
Data Indicator: Yellow LED indicates HiQnet/IQ TCP/IP
data activity. Data indicator 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 range.
AC Mains Present Indicator: Green indicator built
into power switch indicates AC power is present at the
power cord and the amplifier circuit breaker is in the
“on” position.
Back Panel Controls, Indicators and
Connectors
Reset Switch/Circuit Breaker: Resets circuit breaker
that protects power supply.
Data Indicator: Yellow LED indicates network data
activity. Data indicator flashes only when the ampli-
fier 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.
Analog Input Connectors: A 3-pin female XLR con-
nector for each channel.
Digital Input Connector: A 3-pin female XLR connec-
tor that accepts a digital signal in the AES/EBU format.
Network Connector: This Ethernet connector accepts
an RJ45 connector for HiQnet or TCP/IQ networking.
Built into the connector is a yellow LINK ACT indicator
that shows network activity, and a green 100Mb indi-
cator that shows a 100Mb network connection.
Output Connectors: Two high-current, 50A Neutrik
®
Speakon ® (mates with NL4FC or NL4), one per chan-
nel. Two pairs of high-current, 60A color-coded bind-
ing 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.
Power Connector: Standard 20 amp IEC inlet. Voltage
range is indicated above IEC inlet. Five cord sets sup-
plied with amplifier (USA, UK, European, Australia,
India).
Construction: Cast aluminum front panel with inte-
grated handles.
Cooling: Dual-zone, microprocessor controlled, con-
tinuously variable speed fans, front-to-back airflow.
Dimensions: 19 in. (48.3 cm) W x 3.5 in. (8.9 cm) H x
16.2 in. (41.1 cm) D.
Weight: 28 lb (12.7 kg) net, 36 lb (16.3 kg) shipping.
Included Accessorie
s
Rear rack ears, rack screws, operation manual, power
cords, foam air filter.
Regulatory Certifications
Other Applications
T he Crown
®
I-Tech Series offers amazing power, light weight and ease of use for touring sound and
installed sound applications. Onboard DSP provides a wide array of signal processing, greatly reduc-
ing the need for rack components and rack wiring. Onboard DSP features 24-bit, 96 kHz A/D and D/A
converters. All models are compatible with the HiQnet Network and TCP/IQ networking. Digital audio and
HiQnet/IQ control signals connect to the amp via a single CobraNet cable in optional new models, coming
soon. Push-button DSP presets simplify the setup for various loudspeaker arrays. The Global Power Supply
works anywhere in the world, and offers PFC (Power Factor Correction). I-Tech amplifiers have the high-
est output voltage in the industry (200V peak), which provides clean transient peaks. The 3rd-generation
patented Class I (BCA
® ) circuitry couples power efficiently to the load and allows low AC current drain. A
front-panel control screen shows advanced diagnostics and status information.