Crown I-T6000 User Manual
Crown® Power Amplifiers
INSTALLED SOUND
CTs 2-Channel Series
CTs Multi-Channel Series
CTs Multi-Channel with CobraNet
CDi Series
DSi Series
TM
AMPLIFIERS INSTALLED SOUND
CTs Series: The New Standard
CTs 600, CTs 1200, CTs 2000, CTs 3000
Foundation
FEATURES
High power density. All two channel
•
models in a 2U chassis.
New Crown Switching Power Supply
•
for lighter weight.
Selectable “Constant-Voltage” or
•
low-impedance operation per channel.
100V direct outputs on all models.
•
Fully PIP2-compatible.
•
POWER OUTPUT*
2-ohm Dual 4-ohm Dual 8-ohm Dual 16-ohm Dual 70V Dual 100V Dual 4-ohm 8-ohm 16-ohm 100V 140V 200V
Models (per channel) (per channel) (per channel) (per channel) (per channel) (per channel) Bridge Bridge Bridge Bridge Bridge Bridge
CTs 600 150W 300W 300W 300W 300W 300W‡ 300W 600W 600W 600W‡ 600W 600W‡
CTs 1200 250W 600W 600W 300W 600W 600W‡ 500W 1,200W 1,200W 1,200W‡ 1,200W 1,200W‡
CTs 2000 1,000W 1,000W 1,000W 625W 1,000W 1,000W 2,000W 2,000W 2,000W 2,000W 2,000W 2,000W
CTs 3000 1,500W 1,500W 1,250W 625W 1,500W 1,500W 3,000W 3,000W 2,500W 3,000W 3,000W 3,000W
*Maximum average power in watts at rated THD, 20 Hz - 20 kHz. ‡With T-170V or TP-170V.
SPECIFICATIONS
Frequency Response (at 1 watt, 20 Hz - 20
kHz): ±0.25 dB.
Signal to Noise Ratio below rated power (20
Hz to 20 kHz): 105 dB A-weighted.
Total Harmonic Distortion (THD) at full rated
power, from 20 Hz to 20 kHz: CTs 600/1200:
< 0.1%. CTs 2000/3000 < 0.35%.
Damping Factor: 10 Hz to 100 Hz: > 3000.
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: < ±2 mV.
Input Impedance (nominal): 10 kilohms bal-
anced, 5 kilohms unbalanced.
Maximum Input Level: +20 dBu before input
compression, +32 dBu absolute maximum.
Load Impedance: (Note: Safe with all types of
loads)
CTs 600/1200
Stereo: 2/4/8/16 ohms, 70V, 100V
Bridge Mono: 4/8/16 ohms, 140V.
CTs 2000/3000
Stereo: 2/4/8/16 ohms, 70V, 100V
Bridge Mono: 4/8/16 ohms, 140V, 200V.
Voltage Gain (at maximum level setting):
8/4 ohm operation, 1.4V sensitivity
CTs 600 35:1 (31 dB)
CTs 1200 50:1 (34 dB)
CTs 2000 63.9:1 (36 dB)
CTs 3000 71.4:1 (37 dB).
26 dB: 20:1 (26 dB).
70V operation, 1.4V sensitivity or 100V
operation, 2.0V sensitivity: 50:1 (34 dB).
AC Line Voltage and Frequency Confi gurations
Available (±10%): 120VAC/60Hz, 230VAC/50 Hz.
Power Draw at Idle (120VAC mains):
CTs 600/1200: 24W (standby mode)
CTs 2000/3000: 35W (standby mode).
Cooling: Continuously variable speed forced air,
front-to-back airfl ow.
Dimensions: 19 in. (48.3 cm) W x 3.5 in. (8.9
cm) H x 14.25 in. (36.2 cm) D.
Weight: Net, Shipping
CTs 600: 22.8 lb (10.3 kg), 27.7 lb (12.6 kg)
CTs 1200: 23.4 lb (10.6 kg), 28.3 lb (12.8 kg)
CTs 2000: 27.0 lb (12.2 kg), 32.0 lb (14.5 kg)
CTs 3000: 27.7 lb (12.6 kg), 32.7 lb (14.8 kg).
Front Panel Controls and Indicators
Bridge Mode Indicator: Yellow LED illuminates
when the rear-panel Mode Switch is set to the
“Bridge” position.
Ready Indicator: Green LED, one per channel,
illuminates when the channel is initialized and
ready to produce audio output. Indicator is off
when PIP puts the amplifi er in standby mode via
the control system.
Signal Indicators: Three green LEDs per channel indicate the amplifi er’s input and output
signal levels.
Signal: input signal is above –40 dBu.
–20 dB: amplifi er output is 20 dB below clipping.
–10 dB: amplifi er 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 or when the input
compressor/limiter is protecting the amplifi er
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.
Fault Indicator: Red LED, one per channel,
fl ashes when the amplifi er output channel has
stopped operating.
Data Indicator: Yellow LED indicates control
data activity (if the amplifi er is equipped with
an IQ-PIP2 module, and connected to a control
system).
Power Indicator: Blue LED indicates amplifi er
has been turned on and AC power is available.
The LED will fl ash when the AC line voltage is
15% above or 25% below the nominal rated
value.
Cooling Vents: Front-to-rear forced airfl ow.
Power Switch: Push-on / push-off switch.
Back Panel Controls and Connectors
Power Cord Connector: Standard 15 amp IEC
inlet. Voltage is indicated above IEC inlet.
Reset Switch: Resets the circuit breaker that
protects the power supply.
Speaker Connectors: One four-pole touch-proof
terminal strip. Accepts up to 10 AWG terminal
forks.
Input Connectors: Balanced 2-pin terminal block
connector, one per channel, on the standard
PIP2-BBY module.
Channel Level Control: One 21-position
detented rotary attenuator per channel, ranging
from minus infi nity (–70 dB) to 0 dB gain.
Mode Switch: Two-position switch is used to
select the amplifi er’s mode of operation: Dual or
Bridge-Mono.
Highpass Filter: One 3-position switch per
channel selects between OFF, 35Hz and 70Hz
3rd-order fi lters.
“Y” Input Switch: When set to ON, this switch
parallels the input signals of the two channels
for use when the input signal is mono. Also can
be used to daisy-chain the signal to another
amplifi er.
Ventilation Grille: Front-to-rear forced airfl ow.
Options
PIP2 modules, including the PIP-Lite, PIP-USP3,
and PIP-USP3/CN.
Protection Systems
Thermal Level Control (TLC): If an amplifi er
channel starts to overheat, the TLC circuit will
engage the input compressor. By compressing
the input, the amplifi er will not generate as much
heat and will have a chance to cool down.
Junction Temperature Simulation (JTS): In the
CTs 600/1200, if excess power is demanded,
JTS circuitry limits the drive level of the output
devices to a safe range, preventing damage.
Fault: The amplifi er will light the Fault LED if the
amplifi er output stage stops operating.
AC Under-/Over-Voltage Protection: If the AC
line voltage drops below 25% or rises above
15% of the nominal operating voltage of the
amplifi er, the amplifi er’s power supply turns
off and the blue Power LED fl ashes. The amplifi er will turn back on when the AC line voltage
returns to safe operating levels.
Circuit Breaker: This breaker protects the amplifi er from excessive AC current draw.
DC Output Servo: The output servo circuit
protects your drivers by eliminating DC offset,
even in the presence of very large asymmetrical
signals.
In-rush Limiting: A soft-start circuit in the
power supply minimizes the amplifi er’s current
draw during power-on.
Variable-speed Fan: Two continuously variable
speed fans direct the airfl ow through the amplifi er for cooling.
Regulatory Certifications
Other Applications
rown’s CTs Series amplifiers provide exceptional performance, flexibility and value for installed
C
sound applications. CTs Series amplifiers feature independent selection of high and low impedance
operation for a specific channel, plus power levels and features that were carefully chosen to match
the requirements of fixed install design. Easy integration with HiQnet™ and CobraNet™ allows CTs
amplifiers to deliver a comprehensive lineup of monitoring and control features along with digital audio
transport for an award-winning digital audio solution.
9/07 136317-2B
INSTALLED SOUND
www.crownaudio.com
• 5
AMPLIFIERS INSTALLED SOUND
CTs Multi-Channel Series: The New Standard
CTs 4200, CTs 8200
Flexibility
FEATURES
High power density: Four-channel model in a 2U chassis,
•
eight-channel model in a 3U chassis.
New Crown Switching Power Supply for lighter weight.
•
Selectable “Constant-Voltage” or low-impedance (4/8 ohm)
•
operation per channel-pair.
100V direct outputs.
•
New “FIT” (Fault Isolation Topology) circuitry isolates fault
•
conditions without affecting neighboring channels.
Accept new MC accessory modules.
•
POWER OUTPUT*
All channels driven 1 channel driven All channel pairs driven 1 channel pair driven
Models 4-ohm Dual 8-ohm Dual 70V Dual 4-ohm Dual 8-ohm Dual 70V Dual 8-ohm Bridge 16-ohm Bridge 100V Bridge 8-ohm Bridge 16-ohm Bridge 100V Bridge
CTs 4200 260W 180W 220W† 270W 220W 250W† 520W 400W 220W† 560W 440W 250W
CTs 8200 200W 160W 200W† 270W 220W 250W† 400W 320W 200W† 540W 440W 250W
Maximum average power in watts at 1kHz at 0.1% THD.
*
†Constant Voltage full-bandwidth power ratings support 100 Hz to 20 kHz due to automatic high-pass filters.
†
†
SPECIFICATIONS
Frequency Response (at 1 watt, 20 Hz - 20
kHz): ±0.5 dB.
Phase Response (at 1 watt, 10 Hz - 20 kHz): ±35°.
Signal to Noise Ratio below rated power (20
Hz to 20 kHz): 100 dB unweighted.
Total Harmonic Distortion (THD) at 1 watt,
from 20 Hz to 20 kHz: < 0.05%.
Intermodulation Distortion (IMD) 60 Hz and 7
kHz at 4:1, from 163 milliwatts to full bandwidth power: < 0.05% (typical).
Damping Factor: 10 Hz to 400 Hz: >180.
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): < ±5 mV.
Input Impedance (nominal): 20 kilohms bal-
anced, 10 kilohms unbalanced.
Maximum Input Level (before input compres-
sion): + 20 dBu.
Load Impedance: (Note: Safe with all types of
loads)
Stereo: 4/8 and 25 ohms (70V)
Bridge Mono: 8/16 and 50 ohms (100V)
Voltage Gain (at maximum level setting), 1.4V
sensitivity,
4/8 Ohm Operation: 20:1 (26 dB);
70V Operation: 50:1 (34 dB)
100V Operation: 71.4:1 (37 dB)
AC Line Voltage and Frequency Confi gurations Available (±10%): 120V/60 Hz,
220/230/240V/50 Hz.
Power Draw at Idle (120VAC mains, all channels in 4/8 ohm mode): 58W.
Power Draw at Idle (120VAC mains, all channels in 70V mode): 77W.
Cooling: Continuously variable speed forced air,
front-to-back airfl ow.
Dimensions (Width, Height, Depth):
CTs 4200: 19 in. (48.3 cm) W x 3.5 in. (8.9
cm) H x 16.25 in. (41.3 cm) D.
CTs 8200: 19 in. (48.3 cm) W x 5.25 in. (13.3
cm) H x 16.25 in. (41.3 cm) D.
Weight (Net, Shipping):
CTs 4200: 27 lb 8 oz (12.5 kg),
32 lb (14.5 kg)
CTs 8200: 36 lb 6 oz (16.5 kg),
47 lb (21.3 kg).
Front Panel Controls and Indicators
Bridge Mode Indicator: Yellow LED, one per
channel pair, illuminates when the channel pair’s
Mode Switch is set to the “Bridge” position.
If Mode switch is changed while amplifi er is
powered up, Bridge LED will fl ash, indicating
that the amplifi er must be powered off and on to
reset the Mode.
Ready Indicator: Green LED, one per channel,
illuminates when the channel is initialized and
ready to produce audio output.
rown’s CTs Multi-Channel Series offers wide flexibility for a wide range of installed sound applica-
C
tions. CTs Multi-Channel Series amplifiers offer independent selection of high- and low-impedance
operation for each channel pair, making these amps ideal for multi-zone installations.
Signal Indicator: Green LED, one per channel,
illuminates to indicate the presence of input
signals above –40 dBu.
Clip Indicator: Red LED, one per channel, illuminates when the THD of the channel’s output
signal rises to a level typically considered as
the onset of audible clipping. The Clip Indicator
also will illuminate during Thermal Level Control
(TLC) or input overload.
Thermal Indicator: Red LED, one per channel,
fl ashes when a state of thermal stress or overload has caused the channel to shut down. If
the power supply goes into thermal overload, all
channel LEDs will fl ash.
Fault Indicator: Red LED, one per channel,
fl ashes when a fault condition has occurred in
the channel.
Ventilation Grille: Front-to-rear forced airfl ow.
Data Indicator: Yellow LED indicates IQ Loop
data activity (if the amplifi er is equipped with an
IQ-MC module, and connected to an IQ Loop).
Power Indicator: Blue LED indicates amplifi er
has been turned on and AC power is available.
Indicator also fl ashes if the amplifi er shuts off
due to an under-/over-voltage condition on the
AC mains.
Power Switch: Amplifi er is on when the switch
is in the IN position.
Back Panel Controls and Connectors
AC Power Cord Connector: IEC inlet, type 320;
100/120VAC units: 15A;
220/230/240VAC units: 10A.
Voltage is indicated above IEC inlet.
Output Connectors: One four-pole terminal strip
for every two channels with touch-proof cover.
Accepts up to 10 AWG terminal forks.
Accessory Panel: CTs 4200 accepts an optional
VCA-MC4A module. CTs 8200 accepts an
optional VCA-MC8 module.
Channel Level Controls: One 21-position
detented rotary potentiometer per channel, ranging from infi nity (–70 dB) to 0 dB attenuation.
Input Connectors: Removable Phoenix-style
barrier connectors for balanced input.
Mode Switch: Used on each consecutive pair
of channels, this four-position switch is used to
select the amplifi er’s mode of operation: Dual
8/4 ohms, Dual 70V, Bridge-Mono 16/8 ohms,
and Bridge-Mono 100V.
Cooling Vents: Front-to-rear forced airfl ow.
Options
Control Modules: VCA-MC4A: VCA module
for CTs 4200A. VCA-MC8: VCA module for CTs
8200.
Wall-mount level control panels for use with
VCA module: 1-VCAP: Single-gang panel with 1
VCA channel volume control. 4-VCAP: Two-gang
panel with 4 VCA channel volume controls.
T-170V: This is an autoformer that allows 100V
output from the amplifi er, and allows other
amplifi ers without direct constant voltage output
to be easily integrated into distributed systems.
TP-170V: This is a rack-mountable panel with
four autoformers as described above.
Protection Systems
Thermal Level Control (TLC): If an amplifi er
channel starts to overheat, the TLC circuit will
engage that channel’s input compressor. By
compressing the input, the amplifi er will not
generate as much heat and will have a chance
to cool down. The degree of compression is
proportional to the amount of overheating. If
the channel becomes too hot for safe operation
even after full TLC limiting, the channel will shut
off, and the Thermal Indicator for that channel
will fl ash brightly to alert the user that a state of
thermal stress or overload has cause the channel to shut down.
FIT (Fault Isolation Topology): Isolates faults within
affected channels.
Fault: If an amplifi er channel requires service,
the corresponding Fault indicator will illuminate
to alert the user of this condition. If this occurs,
return the amplifi er to the Crown factory or to an
authorized Crown service center.
High-Pass Filter: A fi xed 35-Hz (70-Hz in CTs
4200) high-pass fi lter per channel pair is automatically inserted when the mode switch is set
to either of the constant-voltage settings. The
high-pass fi lter corner frequency in the CTs 8200
can be set to 70 Hz, or bypassed, with a service
option.
AC Under-/Over-Voltage Protection: If the AC
line voltage varies out of an acceptable range,
the amplifi er’s power supply turns off and the
blue Power LED fl ashes. The amplifi er will turn
back on when the AC line voltage returns to safe
operating levels.
Models
100VAC
(CTs 8200 only)
120 VAC units 108VAC 132VAC
220V/230V/240V
units
Power Fuse: A fuse protects the amplifi er from
excessive AC current draw.
Inrush Limiting: A soft-start circuit in the power
supply minimizes the amplifi er’s current draw
during power-on.
Variable-speed Fan: Continuously variable
speed fan directs the airfl ow through the amplifi er for cooling.
Under-Voltage
Limit
90VAC 110VAC
198VAC 264VAC
Over-Voltage
Limit
Regulatory Certifications
Other Applications
8/07 136318-1K
INSTALLED SOUND
www.crownaudio.com
• 7
AMPLIFIERS INSTALLED SOUND
CTs Multi-Channel Series: With CobraNet
CTs 4200USP/CN, CTs 8200USP/CN
TM
CobraNet
FEATURES (input module)
100 Mbps Ethernet single-plug solution for CobraNet audio,
•
and HiQnet™ control and monitoring.
Analog audio inputs allow CobraNet network audio input,
•
CobraNet audio backup, or a hardwire emergency override
of CobraNet audio.
24 bit digital to analog conversion with 32 bit, fl oating point
•
DSP processing.
Firmware upgrades via the network.
•
10 user selectable presets.
•
Reliable FLASH memory backup of all parameters.
•
POWER OUTPUT*
All channels driven 1 channel driven All channel pairs driven 1 channel pair driven
Models 4-ohm Dual 8-ohm Dual 70V Dual 4-ohm Dual 8-ohm Dual 70V Dual 8-ohm Bridge 16-ohm Bridge 100V Bridge 8-ohm Bridge 16-ohm Bridge 100V Bridge
CTs 4200USP/CN
CTs 8200USP/CN
*Maximum average power in watts at 1kHz at 0.1% THD.
†Constant Voltage full-bandwidth power ratings support 100 Hz to 20 kHz due to automatic high-pass fi lters.
260W 180W 220W
200W 160W 200W† 270W 220W 250W† 400W 320W 200W† 540W 440W 250W
†
270W 220W 250W† 520W 400W 220W† 560W 440W 250W
Capable
†
†
SPECIFICATIONS
USP/CN CobraNet Module Specifications
(for amplifier specifications, see the CTs MultiChannel Series pages)
Connectors:
AUX Connector
Confi gurable for AUX input, AUX output and
Listen Bus. Listen Bus is also supported
through CobraNet.
Network Connector
The dual RJ45 CobraNet connectors allow
a Primary & Secondary connection to the
100Mb Ethernet network. Should the Primary
connection lose link activity with the network,
the input module will automatically switch to
the Secondary connection to ensure uninterrupted audio and control. The indicators on
the RJ45 connectors display network information concerning the Ethernet and CobraNet
connections.
Indicators:
Preset Indicator
Signals the number of the current preset, if
active, by fl ashing a series of fl ashes equal to
the current preset number.
IQ Data Indicator
Flashes when the module receives a valid
command that is addressed to the CTs 4200
USP/CN and CTs 8200USP/CN.
Switches:
Reset/Preset Switch
Used to change presets, restore settings to
factory default or restore all the presets to
the factory defaults. During operation of the
switch, the Data indicator fl ashes as an aid to
the user. Accessible with a straightened paper
clip through the rear panel, the switch selects
the next user preset if pressed for less than
2 seconds, resets the module to preset “0” if
pressed for more than 2 seconds.
General:
Memory Backup: Non-volatile FLASH memories for backup of run-time parameters, presets, and program storage.
Communications: 100Mb Fast Ethernet conforming to IEEE 802.3.
Overall Audio Performance:
DSP Processing: Two processors, 32 bit,
Floating Point, 724 µs latency.
D/A and A/D Conversion: 24 bit.
Latency:
DSP processing: 1 ms or 1000 µs.
Digital-to-analog conversion: 250 µs.
Analog-to-digital conversion: 250 µs.
Amplifi er: 100 µs.
Total: 1.6 ms or 1000 µs.
Dynamic Range: 103 dB typical (A-weighted,
20Hz–20kHz, audio sourced from muted
CobraNet channel).
Distortion: < 0.1% THD+N, 20Hz–20kHz.
Frequency Response: ± 0.5 dB, 20Hz–20kHz.
Input/Output Monitor Accuracy: Typically ±1dB.
Maximum Input Level: + 20 dBu.
Regulatory Certifications
Other Applications
CTs 8200USP/CN Back Panel (note USP/CN CobraNet™ module at top left)
he Crown® CTs 4200USP/CN and CTs 8200USP/CN power amplifiers have an integrated 3rd genera-
T
tion, DSP-based input module. It connects the amplifier to a 100 Mbps Ethernet network allowing it
to be remotely controlled and monitored via System Architect™ software. In addition, the input module
allows the transport of real-time digital audio via CobraNet™ over the same Ethernet network. The
amplifi ers connect to a HiQnet™ audio control/monitor network using standard 100 Mbps Ethernet
hardware (switches, Network Interface Cards, and cables). CobraNet™ audio is available over the same
100 Mbps Ethernet network, providing a simple-to-install, single-plug solution for audio distribution,
control, and monitoring.
2/08
139279-2
INSTALLED SOUND
www.crownaudio.com
• 9
AMPLIFIERS INSTALLED SOUND
CDi Series: 2/4/8 Ohm, 70V/100V per channel
CDi 1000, CDi 2000, CDi 4000
Versatility
FEATURES
Onboard digital signal processing includes crossovers,
•
EQ fi lters, delay, and output limiting.
Computer connectivity via USB allows fast setup and
•
confi guration with HiQnet™.
Barrier strip outputs, removable Phoenix-style input.
•
Extremely versatile, handling a wide range of speaker
•
impedances and outputs.
Switch-mode universal power supply.
•
Speaker presets for crossover frequencies, EQ, limiting,
•
compression, delay, and subharmonic synthesis.
POWER OUTPUT*
2-ohm Dual 4-ohm Dual 8-ohm Dual 70V Dual 4-ohm 100V‡ Dual 140V Bridge
Models (per channel) (per channel) (per channel) (per channel) Bridge (per channel)
CDi 1000 700W** 500W 275W 500W 1,400W** 500W 1,000W
CDi 2000 1,000W** 800W 475W 800W 2,000W** 800W 1,600W
CDi 4000 1,600W** 1,200W 650W 1,000W 3,200W** 1,000W 2,000W
*Maximum average power in watts at 1 kHz at 0.5% THD. **With 1% THD. ‡100Vp
SPECIFICATIONS
Performance
Output Power: See power charts below.
Voltage Gain at 1kHz, 8 ohm rated output:
CDi 1000: 30.5 dB
CDi 2000: 32.9 dB
CDi 4000: 34.2 dB.
Frequency Response: +0/–1 dB from 20 Hz to
20 kHz at 1 watt into 4 ohms.
Load Impedance: Safe with all types of loads.
Rated for 2 to 8 ohms in Stereo mode, 4 to 16
ohms in Bridge-Mono mode.
Sensitivity: 1.4V.
Signal to Noise Ratio (below rated 8-ohm
power at 1 kHz): 100 dB (A weighted).
Damping Factor: Better than 500 from 20 Hz to
400 Hz.
Crosstalk: > 70 dB below rated power, 20 Hz to
1 kHz.
Input Stage: Input is electronically balanced and
employs precision 1% resistors.
Input Impedance (nominal): 20 k ohms, balanced; 10 k ohms, unbalanced.
Maximum Input Signal: +22 dBu typical.
AC Line Voltage and Frequency Confi gurations
Available: 100V, 120V, 220-240V,
50/60 Hz.
AC Line Current:
CDi 1000: 11.50A
CDi 2000: 11.93A
CDi 4000: 11.75A
At Idle: Draws no more than 45 watts.
Operating Temperature: 0° C to 40° C at 95%
relative humidity (non-condensing).
DSP Section
Input EQ: 6 parametric fi lters per channel with
adjustable Q, ±15 dB boost/cut. Also adjustable
high and low shelving fi lters. This 8-fi lter EQ
section can be bypassed.
Crossover Filters: Highpass and lowpass per
channel. Butterworth 6/12/18/24 dB per octave
and Linkwitz-Riley 24/48 dB per octave. Also
includes ±15 dB bandpass gain and polarity
control.
Output EQ: 8 parametric fi lters per channel with
adjustable Q, ±15 dB boost/cut. This 8-fi lter EQ
section can NOT be bypassed. Filters are enabled
individually.
Delay: Up to 50 msec total delay per channel.
Output Limiter: Prevents clipping and protects
loudspeakers. Choice of –3, –6, or –12 dB
threshold per channel.
Presets: 20 presets. 19 are user-defi nable
Front Panel Controls and Indicators
Level: Detented rotary level control, one per
channel.
Power Switch: On/off switch applies AC power
to the amplifi er.
Sel/Prev/Next Buttons: Three buttons near the
LCD screen are used to access menu items and
front panel lockout.
LCD Screen: Backlit liquid crystal display shows
speaker presets and signal processing.
Signal Indicator: Green LED, one per channel,
illuminates when a very low-level signal is present at input.
–10 Indicator: Green LED fl ashes when output
signal exceeds –10 dB below clip.
–20 Indicator: Green LED fl ashes when output
signal level exceeds –20 dB below clip.
Ready Indicator: Green LED, one per channel,
illuminates when the amplifi er is ready to produce audio.
Clip Indicator: Red LED, one per channel, turns
on at the threshold of audible distortion.
Temp Indicator: Red LED, one per channel,
illuminates under excessive temperature
conditions.
Power Indicator: Blue LED illuminates when the
amplifi er has been turned on and has power.
Rear Panel Controls and Connectors
AC Line Connector: NEMA 5-15P (15A).
Input Connector: Two 3-pin removable
Phoenix-type connectors each accept a
balanced line-level input signal.
Output Connectors: 4-position barrier strip with
connectors for dual louspeakers or bridge-mono
loudspeaker. Dual connectors work with 2-8
ohm or 70V/100V loads. Bridge-mono connectors work with 4-8 ohm or 140V loads.
HiQnet USB Connector: Type B, connects to a
USB port on a PC.
Protection
CDi-Series amplifi ers are protected against
shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; excessive
output current, and input overload damage.
They also protect loudspeakers from input/
output DC, large or dangerous DC offsets and
turn-on/turn-off transients.
Included Accessories
Non-touch cover
Locking level-control knobs.
Construction
Chassis: Steel.
Cooling: Proportional speed fan with front-to-
rear airfl ow.
Dimensions: EIA Standard 19-in. rack mount
width (EIA RS-310-B), 3.5 in. (8.9 cm) high and
12.25 in. (31.11 cm) deep behind mounting
surface.
Net Weight:
19 lb (8.6 kg).
Shipping Weight:
22 lb (10.0 kg).
Regulatory Certifications
Note: All measurements apply to all models of CDi
Series amplifiers in stereo mode with 8-ohm loads and
an input sensitivity of 26 dB gain, 1 kHz at rated power
unless other otherwise specified. Specifications for
units supplied outside the U.S.A. may vary slightly at
different AC voltages and frequencies.
he CDi Series of Crown® amplifiers are designed for installed sound applications. The series includes
T
three models which are identical except for output power: CDi 1000, CDi 2000 and CDi 4000. All are
rugged and lightweight, and offer unmatched value in their class. CDi-Series amplifiers feature an LCD
screen with DSP speaker presets. Other features include a switch-mode universal power supply, useful
function indicators, proportional-speed fan-assisted cooling, removable Phoenix-style inputs, barrier
strip outputs for low-Z or 70V/140V loads, short-circuit protection and more.
8/07 139648-3
INSTALLED SOUND
www.crownaudio.com
• 11
AMPLIFIERS INSTALLED SOUND
DSi Series: 2, 4, 8 ohm
DSi 1000, DSi 2000, DSi 4000
One-touch
Performance
FEATURES
Intuitive front-panel LCD screen, automatic presets for popular
•
JBL speaker systems for quick, easy confi guration.
Onboard digital signal processing includes crossovers, EQ fi lters,
•
delay, and output limiting.
Computer connectivity via USB allows fast setup and confi gura-
•
tion with HiQnet™.
Barrier strip outputs, removable Phoenix-style input.
•
All models are THX
•
POWER OUTPUT
2-ohm Dual 4-ohm Dual 8-ohm Dual 4-ohm 8-ohm
Models (per channel) (per channel) (per channel) Bridge Bridge
DSi 1000 700W*† 475W 275W 1,400W*† 950W
DSi 2000 1,000W* 800W 475W 2,000W* 1,600W
DSi 4000 1,450W* 1,200W 650W 3,000W* 2,400W
Maximum average power in watts at 1 kHz at 0.5% THD. *With 1% THD. †Not rated for 100V versions.
®
-approved.
SPECIFICATIONS
Performance
Voltage Gain at 1kHz:
DSi 1000: 30.5 dB
DSi 2000: 32.9 dB
DSi 4000: 34.2 dB
Frequency Response: +0/–1 dB from 20 Hz
to 20 kHz at 1 watt into 4 ohms.
Load Impedance: Safe with all types of loads.
Rated for 2 to 8 ohms in Stereo mode, 4 to
16 ohms in Bridge-Mono mode. DSi 1000
A1 (100V version) is rated for 4 to 8 ohms in
Stereo mode, 8 to 16 ohms in Bridge-Mono
mode.
Sensitivity:
At 8 ohm rated output:
DSi 1000: 1.4V
DSi 2000: 1.4V
DSi 4000: 1.4V
At 4 ohm rated output:
DSi 1000: 1.3V
DSi 2000: 1.2V
DSi 4000: 1.3V
At 2 ohm rated output:
DSi 1000: 1.1V
DSi 2000: 1.0V
DSi 4000: 1.0V
Signal to Noise Ratio (below rated 8-ohm
power at 1 kHz):
100 dB (A weighted).
Damping Factor: Better than 500 from 20 Hz
to 400 Hz.
Crosstalk: > 70 dB below rated power, 20 Hz
to 1 kHz, A-weighted.
Input Stage: Input is electronically balanced
and employs precision 1% resistors.
Input Impedance (nominal): 20 k ohms, bal-
anced; 10 k ohms, unbalanced.
AC Line Voltage and Frequency Confi gurations Available: 100V, 120V, 220-240V, 50/60
Hz.
AC Line Current:
DSi 1000: 11.56A
DSi 2000: 11.93A
DSi 4000: 11.75A
At Idle: Draws no more than 45 watts.
Operating Temperature: 0° C to 40° C at
95% relative humidity (non-condensing).
DSP Section
Input EQ: 6 parametric fi lters per channel with
adjustable Q, ±15 dB boost/cut. Also adjustable high and low shelving fi lters. This 8-fi lter
EQ section can be bypassed.
Crossover Filters: Highpass and lowpass
per channel. Butterworth 6/12/18/24 dB per
octave, Linkwitz-Riley 24/48 dB per octave.
Also includes ±15 dB bandpass gain and
polarity control.
Output EQ: 8 parametric fi lters per channel
with adjustable Q, ±15 dB boost/cut. This 8fi lter EQ section can NOT be bypassed. Filters
are enabled individually.
Output Limiter: Prevents clipping and protects loudspeakers. Choice of –3, –6, or –12
dB threshold per channel.
Delay: Up to 50 msec total delay per channel.
Presets: 20 presets. One is “DSP OFF.” Fif-
teen are factory-set for JBL Cinema systems.
Four are user-defi nable.
Front Panel Controls and Indicators
Level: Detented rotary level control, one per
channel.
Power Switch: On/off switch applies AC
power to the amplifi er.
Sel/Prev/Next Buttons: Three buttons near
the LCD screen are used to access menu
items and front panel lockout.
LCD Screen: Backlit liquid crystal display
shows speaker presets and signal processing.
Signal Indicator: Green LED, one per channel, illuminates when a very low-level signal
is present at input.
–10 Indicator: Green LED fl ashes when
output signal exceeds –10 dB below clip.
–20 Indicator: Green LED fl ashes when
output signal level exceeds –20 dB below clip.
Ready Indicator: Green LED, one per channel, illuminates when the amplifi er is ready to
produce audio.
Clip Indicator: Red LED, one per channel,
turns on at the threshold of audible distortion.
Temp Indicator: Red LED, one per channel,
illuminates under excessive temperature
conditions.
Power Indicator: Blue LED illuminates when
the amplifi er has been turned on and has
power.
Rear Panel Controls and Connectors
AC Line Connector: NEMA 5-15P (15A).
Input Connector: Two 3-pin removable Phoe-
nix-type connectors each accept a balanced
line-level input signal.
Output Connectors: 4-position barrier strip
with connectors for dual louspeakers or
bridge-mono loudspeaker.
HiQnet USB Connector: Type B, connects to a
HiQnet network.
HD-15 Connector: For cinema I/O compatibility with DSi-8M System Monitor. See
Figure 1.
Protection
DSi-Series amplifi ers are protected against
shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; excessive
output current, and input overload damage.
They also protect loudspeakers from input/
output DC, large or dangerous DC offsets and
turn-on/turn-off transients
Construction
Chassis: Steel.
Cooling: Proportional speed fan with front-to-
rear airfl ow.
Dimensions: EIA Standard 19-in. rack mount
width (EIA RS-310-B), 3.5 in. (8.9 cm)
high and 12.25 in. (31.11 cm) deep behind
mounting surface.
Net Weight:
19 lb (8.6 kg)
Shipping Weight:
22 lb (10.0 kg)
Regulatory Certifications
Other Applications
Note: All measurements apply to all models of CDi
Series amplifiers in stereo mode with 8-ohm loads and
an input sensitivity of 26 dB gain, 1 kHz at rated power
unless other otherwise specified. Specifications for
units supplied outside the U.S.A. may vary slightly at
different AC voltages and frequencies.
he Crown® DSi Series of power amplifiers provides onboard digital signal processing
T
including crossovers, EQ filters, delay and output limiting. The intuitive front panel LCD
screen guides installers through a setup process—featuring presets for popular JBL speaker
systems—to make confi guration quick and easy. At the touch of a button, Crown’s DSi amplifi ers deliver perfectly matched performance with each award-winning JBL loudspeaker system,
making this the ultimate installed-sound solution.
2/08 139622-2C
INSTALLED SOUND
www.crownaudio.com
• 13
INSTALLED SOUND
Product Applications
BSS FDS-336 Loudspeaker
Management System
dbx DriveRack 220V
CDi 2000
dbx 480 Remote Unit
for DriveRack 480
INSTALLED SOUND
Product Applications
Network Switch
• 15
COMMERCIAL AUDIO
Preamplifier-Mixers
Amplifiers
Mixer-Amplifiers
XM Business Music Systems
COMMERCIAL AUDIO PREAMPLIFIER-MIXERS
14M, 28M
Adaptable
FEATURES
4 or 8 inputs, 1 or 2 output channels.
•
Ideal for commercial and industrial use.
•
Balanced Phoenix-type mic/line inputs; RCA inputs.
•
Balanced Phoenix-type line outputs.
•
Any input can be sent to any output.
•
Priority muting.
•
Independent bass and treble controls for each input.
•
Model Inputs System Zones
14M 4 Single-zone
28M 8 Two-zone
SPECIFICATIONS
Performance
Frequency Response (at line out): 20 Hz to 20
kHz +/- 1 dB.
Signal to Noise Ratio (master volume at
minimum): 100 dB.
THD: 0.05% typical with 800 mV balanced
input, 1V output.
Input Sensitivity (volts RMS for full output at
maximum gain):
Balanced mic inputs: 3 mV.
Balanced line inputs: 800 mV.
RCA connectors: 400 mV.
Input Impedance (nominal):
Mic: 400 ohms.
Line: 100 kilohms.
RCA: 50 kilohms.
Crosstalk (all controls at “10”): –50 dB at
1kHz.
Line Output Level (nominal): 1.2 V into 10
kilohms.
Phantom Power: 15 VDC.
AC Line Voltages Available:
100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
Operating Temperature/Humidity: 0° C to 40°
C at 95% relative humidity (non-condensing).
Storage Temperature: –20° C to 85° C.
Front Panel Controls and Indicators
Power Switch: Pushbutton on-off switch.
The power switch does not affect the 24V DC
auxiliary power input.
Input Volume Controls: Microphone/line, four
in 14M, eight in 28M. Detented potentiometers
with knobs.
Tone Controls: Bass and Treble non-detented
potentiometers on each input channel. Bass
±10 dB at 100 Hz, Treble ±10 dB at 10 kHz.
Power Indicator: Blue LED indicates power on.
Input Signal Presence Indicator: Green LED,
one for each input channel, illuminates when
input signal exceeds –24 dBu (line) or –70 dBu
(mic).
Output Signal Presence Indicator: Green LED,
one for each output channel, illuminates when
output signal level exceeds 100 mV.
Clip Indicators: Red LED, one per output
channel. Illuminates at threshold of audible
distortion.
Output Volume Controls: One per output channel. Detented potentiometer with knob.
Back Panel Controls and Connectors
Fuse: Protects the power supply.
AC Power Inlet: Detachable IEC.
Auxiliary Power Input: 2-position terminal strip
for 24 VDC (±10%) backup power. Accepts up
to 10 AWG terminal forks.
Mixer Confi g Switch: A DIP switch with two
functions:
1. Assigns an input as the priority input for
each output, thereby temporarily muting the
remaining inputs. Muting is activated by contact
closure.
2. Global enable switch for phantom power.
Does not affect RCA inputs. Default position
is off.
Priority Connector: 3-pin Phoenix-type connector allows Input 1 or Input 5 (28M only) to mute
other input signals by contact closure.
Input Routing Switch (28M only): DIP switches
that assign each input signal to each output.
Two switches per input.
Line Out Connector: One 3-pin balanced Phoenix-type connector per output channel. Level
controlled by master volume control.
Input Connectors:
Mic/Line Connector: 3-pin Phoenix-type, balanced, one per input channel.
Dual RCA Input Connector: For stereo music
signals, unbalanced, summed together, two
connectors per input channel.
The tone generator has been omitted. Call
Crown Tech Support if you have a tone generator question.
Mic/line Switch: Selects mic-level or line-level
signals. One switch for each balanced input
Included Accessories
Power cord
Detachable rack ears
Phoenix-type connectors
Spade lugs
Dimensions
EIA Standard 19-inch (48.3-cm) rack mount
width (EIA RS-310-B) with rack ears, 1.7-inch
(4.3-cm) height and 10.7-inch (27.18-cm) depth
behind the mounting surface.
Weight
Net Weight:
14M: 8.7 lb (3.9 kg)
28M: 8.7 lb (3.9 kg)
Shipping Weight:
14M: 14 lb (6.4 kg)
28M: 14 lb (6.4 kg)
Regulatory Certifications
he Crown® 14M and 28M are high-value mixers for commercial and industrial audio. The mixers
T
are part of Crown’s Commercial Audio Series, which also includes mixer-amplifiers and power
amplifiers. These low-cost units provide all necessary features in a simple building-block format. Some
applications include schools, hospitals, factories, restaurant/retail, houses of worship, fitness facilities,
A/V boardrooms, correctional facilities, and small offices. Typical uses are paging, background music,
security and evacuation instructions. Input routing allows each input to be assigned to any output. You
can add more mixers for more inputs, or add more power amps (or mixer-amps) to handle more zones.
Other features include priority muting and phantom power.
12/07 138119-1D
COMMERCIAL AUDIO
www.crownaudio.com
• 19
COMMERCIAL AUDIO AMPLIFIERS
180A, 280A, 1160A
Power Zone
FEATURES
Ideal for commercial and industrial use.
•
Balanced Phoenix-type line inputs; touch-proofed screw-terminal
•
speaker outputs.
Advanced protection system includes output current limiting,
•
DC protection, circuit breaker/fuse, and thermal protection.
1 or 2 inputs; 1 to 2 amplifi er output channels.
•
POWER OUTPUT*
Models 4-ohm 70V/100V Inputs System Zones
180A 80W 80W 1 Single-zone
280A 80W 80W 2 Two-zone
1160A 160W 160W 1 Single-zone
*Minimum guaranteed power in watts at 1 kHz with 0.5% THD.
SPECIFICATIONS
Performance
Frequency Reponse (at 1 watt from 4-ohm
tap): 70 Hz to 19 kHz +/- 1 dB.
Frequency Response (at line out): 20 Hz to 20
kHz +/- 1 dB.
Power Bandwidth (at 4-ohm tap, 2 dB below
maxium 1 kHz power): 50 Hz to 20 kHz with
< 0.5% THD
Signal to Noise Ratio (ref. to rated power,
master volume at minimum): 85 dB.
DC Output Offset: < ±5 mV.
THD: Less than 0.5% at rated power at 1 kHz.
Input Sensitivity (for full output at maximum
gain): 800 mV.
Input Impedance (nominal): 100 kilohms.
Minimum Load Impedance:
100V output: 160 ohms.
70V output: 80 ohms.
4-ohm output: 4/8 ohms.
Crosstalk (all controls at “10”): –70 dB at
1kHz.
Line Output Level (nominal): 1V into 10
kilohms.
AC Line Voltages Available:
100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
Operating Temperature/Humidity: 0° C to 40°
C at 95% relative humidity (non-condensing).
Storage Temperature: –20° C to 85° C.
Front Panel Controls and Indicators
Power Switch: Pushbutton on-off switch.
The power switch does not affect the 24V DC
auxiliary power input.
Power Indicator: Blue LED indicates power on.
Output Signal Presence Indicator: Green LED,
one for each output channel, illuminates when
output signal level exceeds 100 mV (45 dB
below full power) from the 4-ohm tap.
Clip Indicators: Red LED, one per output
channel. Illuminates at threshold of audible
distortion.
Master Volume Controls: One per output channel. Detented potentiometer with knob.
Tone Controls: Bass and Treble non-detented
potentiometers on each channel. Bass ±10 dB
at 100 Hz, Treble ±10 dB at 10 kHz.
Back Panel Controls and Connectors
Reset Switch: Resets the circuit breaker that
protects the power supply. 220/230/240V units
have a fuse instead.
AC Power Inlet: Detachable IEC.
Auxiliary Power Input: 2-position terminal strip
for 24 VDC (±10%) backup power. Accepts up
to 14 AWG terminal forks.
Amplifi er Outputs Connectors: One per
channel, 4-position terminal strip with COM
(Common), 4 ohms, 70V and 100V terminals.
Accepts up to 10 AWG terminal forks. Nontouch cover included.
Output VCA Connector: One for every two channels, 4-pin Phoenix-type connector for two VCA
control lines of +10 VDC and ground. Compatible with Crown 1-VCAP and 4-VCAP modules.
Line Out Connector: One 3-pin balanced Phoenix-type connector per output channel. Post
master, pre-VCA. Level controlled by master
volume control.
Amp Input Connector:
3-pin Phoenix-type, high-impedance balanced,
one per amplifer channel.
Cooling
Convection cooled.
Protection
Current Limit Protection: Included.
Thermal Limit Protection: Over-temperature
thermal cutout.
DC-Fault Load Protection: Included.
Included Accessories
Power cord
Detachable rack ears
Screws for rack ears
Non-touch cover for output connectors
Phoenix-type connectors
Spade lugs
Optional Accessories
1-VCAP remote volume control for one channel.
4-VCAP remote volume control for four chan-
nels.
Dimensions
EIA Standard 19-inch (48.3-cm) rack mount
width (EIA RS-310-B) with rack ears, 3.5-inch
(8.9-cm) height and 12.2-inch (31.0-cm) depth
behind the mounting surface (not including nontouch cover). 4.1 inches (10.5 cm) high including feet. 13.9 inches (35.2 cm) deep from front
of knobs to back of non-touch cover.
Weight
Net Weight:
180A: 21.0 lb (9.5 kg)
280A: 25.3 lb (11.5 kg)
1160A: 25.3 lb (11.5 kg)
Shipping Weight:
180A: 26.0 lb (11.8 kg)
280A: 30.3 lb (13.7 kg)
1160A: 30.3 lb (13.7 kg)
Regulatory Certifications
he Crown® 180A, 280A and 1160A are high-value amplifiers for commercial and industrial audio.
T
They provide 4-ohm and constant-voltage outputs (70V and 100V). The amps are part of Crown’s
Commercial Audio Series, which also includes mixers and mixer-amps. These low-cost units provide
all necessary features in a simple building-block format.
9/07 138118-2A
COMMERCIAL AUDIO
www.crownaudio.com
• 21
COMMERCIAL AUDIO AMPLIFIERS
660A
6-Channel
FEATURES
6 inputs; 6 amplifi er output channels.
•
Balanced Phoenix-type line inputs; touch-proof screw-terminal speaker
•
outputs.
Advanced protection system includes output current limiting,
•
DC protection, circuit breaker/fuse, and thermal protection.
Ideal for commercial and industrial use.
•
POWER OUTPUT*
Model 4-ohm 70V/100V Inputs System Zones
660A 60W 60W 6 Six-zone
*Minimum guaranteed power in watts at 1 kHz with 0.5% THD.
SPECIFICATIONS
Performance
Frequency Reponse (at 1 watt from 4-ohm
tap): 70 Hz to 19 kHz +/- 1 dB.
Frequency Response (at line out): 20 Hz to 20
kHz +/- 1 dB.
Power Bandwidth (at 4-ohm tap, 2 dB below
maxium 1 kHz power): 50 Hz to 20 kHz with
< 0.5% THD.
Signal to Noise Ratio (ref. to rated power,
master volume at minimum): 85 dB.
DC Output Offset: < ±5 mV.
THD: Less than 0.5% at rated power at 1 kHz.
Input Sensitivity (for full output at maximum
gain): 800 mV.
Input Impedance (nominal): 100 kilohms.
Minimum Load Impedance:
100V output: 160 ohms.
70V output: 80 ohms.
4-ohm output: 4/8 ohms.
Crosstalk (all controls at “10”): –70 dB at
1kHz.
Load Impedance:
Ch. 1-4: 4 ohms and 70V/100V.
Ch. 5-6: 4 ohms.
AC Line Voltages Available:
100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
AC Voltage Tolerance: +10%/–20%.
Operating Temperature/Humidity: 0° C to 40°
C at 95% relative humidity (non-condensing).
Storage Temperature: –20° C to 85° C.
Front Panel Controls and Indicators
Power Switch: Pushbutton on-off switch.
Power Indicator: Blue LED indicates power on.
Output Signal Presence Indicator: Green LED,
one for each output channel, illuminates when
output signal level exceeds 100 mV (45 dB
below full power) from the 4-ohm tap.
Clip Indicators: Red LED, one per output
channel. Illuminates at threshold of audible
distortion.
Volume Controls: One per output channel.
Detented potentiometer with knob.
Tone Controls: Bass and Treble non-detented
potentiometers on each channel. Bass ±10 dB
at 100 Hz, Treble ±10 dB at 10 kHz.
Back Panel Controls and Connectors
Reset Switch: Resets the circuit breaker that
protects the power supply. 220/230/240V units
have a fuse instead.
Input Connectors: Detachable 3-pin Phoenixtype, high-impedance balanced, one per channel.
AC Power Inlet: Detachable IEC.
Amplifi er Outputs Connectors: One per
channel, 4-position terminal strip with COM
(Common), 4 ohms, 70V and 100V terminals
for channels 1-4 and one 4-position terminal
strip (4 ohms, + and – for each channel) for
channels 5 and 6. Accepts up to 10 AWG terminal forks. Non-touch cover included.
VCA Connector: Each pair of channels has a 4pin Phoenix-type connector for two VCA control
lines of +10 VDC and ground. Compatible with
Crown 1-VCAP and 4-VCAP modules.
Cooling
Convection cooled.
Protection
Current Limit Protection: Included.
Thermal Limit Protection: Over-temperature
thermal cutout.
DC-Fault Load Protection: Included.
Turn On/Turn Off: No thumps or pops.
Included Accessories
Power cord
Detachable rack ears
Screws for rack ears
Non-touch cover for output connectors
Phoenix-type connectors
Spade lugs
Optional Accessories
1-VCAP remote volume control for one channel.
4-VCAP remote volume control for four channels.
Dimensions
EIA Standard 19-inch (48.3-cm) rack mount
width (EIA RS-310-B) with rack ears, 3.5-inch
(8.9-cm) height and 12.2-inch (31.0-cm) depth
behind the mounting surface (not including nontouch cover). 4.1 inches (10.5 cm) high including feet. 13.9 inches (35.2 cm) deep from front
of knobs to back of non-touch cover.
Weight
Net Weight:
30.3 lb (13.7 kg)
Shipping Weight:
35.3 lb (16.0 kg)
Regulatory Certifications
he Crown® 660A is a very flexible, high-value six-channel amplifier for commercial and industrial
T
audio. It provides 4-ohm and constant-voltage outputs (70V and 100V) on channels 1 through 4,
and 4-ohm outputs on channels 5 and 6. The 660A is a part of Crown’s Commercial Audio Series, which
also includes mixers and mixer-amps. These low-cost units provide all necessary features in a simple
building-block format.
9/07 139754-1A
COMMERCIAL AUDIO
www.crownaudio.com
• 23
COMMERCIAL AUDIO MIXER-AMPLIFIERS
180MA, 280MA, 1160MA
Practical
FEATURES
4 to 8 inputs, 1 to 2 amplifi er output channels.
•
Ideal for commercial and industrial use.
•
Balanced Phoenix-type mic/line inputs; touch-proofed
•
screw-terminal speaker outputs.
Any input can be sent to any output.
•
Priority muting.
•
POWER OUTPUT*
Models 4-ohm 70V/100V Inputs System Zones
180MA 80W 80W 4 Single-zone
280MA 80W 80W 8 Two-zone
1160MA 160W 160W 4 Single-zone
*Minimum guaranteed power in watts at 1 kHz with 0.5% THD.
SPECIFICATIONS
Performance
Frequency Reponse (at 1 watt from 4-ohm
tap): 70 Hz to 19 kHz ± 1 dB.
Frequency Response (at line out): 20 Hz to 20
kHz ± 1 dB.
Power Bandwidth (at 4-ohm tap, 2 dB below
maxium 1 kHz power): 50 Hz to 20 kHz with
< 0.5% THD
Signal to Noise Ratio (ref. to rated power,
master volume at minimum): 85 dB.
DC Output Offset: < ±5 mV.
THD: Less than 0.5% at rated power at 1 kHz.
Input Sensitivity (for full output at maximum
gain):
Balanced mic inputs: 3 mV.
Balanced line inputs: 800 mV.
RCA connectors: 400 mV.
Input Impedance (nominal):
Mic: 400 ohms.
Line: 100 kilohms.
RCA: 50 kilohms.
Crosstalk: –70dB at 1kHz.
Line Output Level (nominal): 1V into 10
kilohms.
Phantom Power: 15 VDC.
AC Line Voltages Available:
100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
Operating Temperature/Humidy: 0° C to 40° C
at 95% relative humidity (non-condensing).
Storage Temperature: –20° C to 85° C.
Front Panel Controls and Indicators
Power Switch: Pushbutton on-off switch.
The power switch does not affect the 24V DC
auxiliary power input.
Input Volume Controls: Microphone/line,
four in 180MA and 1160MA, eight in 280MA.
Detented potentiometers with knobs.
Tone Controls: Bass and Treble non-detented
recessed potentiometers on each input channel. Bass ±10 dB at 100 Hz, Treble ±10 dB at
10 kHz.
Power Indicator: Blue LED indicates power on.
Input Signal Presence Indicator: Green LED,
one for each input channel, illuminates when
input signal exceeds –24 dBu (line) or –70 dBu
(mic).
Output Signal Presence Indicator: Green LED,
one for each output channel, illuminates when
output signal level exceeds 100 mV (45 dB
below full power) from the 4-ohm tap. Does
not respond to signals from the AMP INPUT
connector.
Clip Indicators: Red LED, one per output channel. Illuminates at threshold of audible distortion. Does not respond to signals from the AMP
INPUT connector.
Output Volume Controls: One per output channel. Detented potentiometer with knob.
Back Panel Controls and Connectors
Reset Switch: Resets the circuit breaker that
protects the power supply. 220/230/240V units
have a fuse instead.
AC Power Inlet: Detachable IEC.
Auxiliary Power Input: 2-position terminal strip
for 24 VDC (±10%) backup power. Accepts up
to 14 AWG terminal forks.
Amplifi er Outputs Connectors: One per
channel, 4-position terminal strip with COM
(Common), 4 ohms, 70V and 100V terminals.
Accepts up to 14 AWG terminal forks. Nontouch cover included.
Output VCA Connector: 4-pin Phoenix-type
connector for two VCA control lines of +10 VDC
and ground. Compatible with Crown 1-VCAP
and 4-VCAP modules.
Amp Confi g Switch: A DIP switch with two
functions:
1. Assigns an input as the priority input for
each output, thereby temporarily muting the
remaining inputs. Muting is activated by contact
closure.
2. Global enable switch for phantom power.
Does not affect RCA inputs. Default position
is off.
Priority Connector: 3-pin Phoenix-type connector allows Input 1 or Input 5 (280MA only) to
mute other input signals by contact closure.
Input Routing Switch (280MA only): DIP
switches that assign each input signal to each
output. Two switches per input.
Line Out Connector: One 3-pin balanced Phoenix-type connector per output channel. Post
master, pre-VCA. Level controlled by master
volume control.
The tone generator has been omitted. Call
Crown Tech Support if you have a tone generator question.
Input Connectors:
Mic/Line Connector: 3-pin Phoenix-type, balanced, one per input channel.
Dual RCA Input Connector: For stereo music
signals, unbalanced, summed together, two
connectors per input channel.
Amp Input Connector: 3-pin Phoenix-type,
high-impedance balanced, one per amplifer
channel. Used to link an additional mixer to
the mixer-amplifi er. Can be used to connect an
external processor.
Mic/line Switch: Selects mic-level or line-level
signals. One switch for each balanced input.
Link In/Out Switch: Slide switch, one per channel. With the Link Switch IN, any signal applied
to the Amp Input connector will be mixed with
the input signal(s). With the Link Switch OUT,
only the signal from the Amp Input Connector
will appear at the amplifi er output.
Cooling
Convection cooled.
Protection
Current Limit Protection: Included.
Thermal Limit Protection: Over-temperature
thermal cutout.
DC-Fault Load Protection: Included.
Included Accessories
Power cord
Detachable rack ears
Screws for rack ears
Non-touch cover for output connectors
Phoenix-type connectors
Spade lugs
Optional Accessories
1-VCAP remote volume control for one channel.
4-VCAP remote volume control for four channels.
Dimensions
EIA Standard 19-inch (48.3-cm) rack mount
width (EIA RS-310-B) with rack ears, 3.5-inch
(8.9-cm) height and 12.2-inch (31.0-cm) depth
behind the mounting surface (not including nontouch cover). 4.1 inches (10.5 cm) high including feet. 13.9 inches (35.2 cm) deep from front
of knobs to back of non-touch cover.
Weight
Net Weight:
180MA: 21.0 lbs. (9.5 kg).
280MA: 25.3 lbs. (11.5 kg)
1160MA: 25.3 lbs. (11.5 kg)
Shipping Weight:
180MA: 26.0 lbs. (11.8 kg)
280MA: 30.3 lbs. (13.8 kg)
1160MA: 30.3 lbs. (13.8 kg)
Regulatory Certifications
rown’s Commercial Audio mixer/amplifiers deliver legendary Crown quality to the commercial audio
C
industry. These high-value mixer-amplifiers provide both 4-ohm and constant-voltage outputs (70V
and 100V) for use in a wide range of commercial applications including schools, hospitals, factories,
restaurant/retail, houses of worship, fitness facilities, A/V boardrooms, correctional facilities, and small
offices. Easily configured for a range of uses such as paging, background music, security, and evacuation instructions, Crown’s Commercial Audio units are the smart choice for commercial sound.
12/07 137964-2B
COMMERCIAL AUDIO
www.crownaudio.com
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