Crown ma-5002vz Manual Suplementario

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Crown International, Inc.
1718 W. Mishawaka Rd.
Elkhart, IN 46515-9439
TEL: 574-294-8200
FAX: 574-294-8FAX
www.crownaudio.com
MA-5002VZ
M A C R O - T E C H   S E R I E S
6/06                                                          128360-2C    
Specifi cations subject to change without prior notice.
Crown, IOC, IQ System, Macro-Tech, Multi-Mode, ODEP and 
VZ are registered trademarks and Grounded Bridge, PIP and 
PIP2 are trademarks of Crown International, Inc. HiQnet is 
a trademark of Harman International Industries, Inc. ©2006 
Crown International. Printed in U.S.A.
Macro-Tech 5002VZ (120 V, 60 Hz models)
The power amplifi er shall be a solid-state two-
channel model employing multi-mode
®
 (AB+B) 
grounded bridge
TM 
output circuitry with a VZ
®
 
(Variable Impedance) power supply for each 
channel.
The outputs shall be switchable as stereo, 
bridged-mono or parallel-mono modes of 
operation. The bridged-mono mode shall bridge 
the outputs to provide increased output volt-
age. The parallel-mono mode shall parallel the 
outputs to provide increased output current.
The output impedance of each channel shall be 
less than 10 milliohms in series with less than 
2 microhenries in stereo mode.
When confi gured to do so, the variable imped-
ance power supplies shall reduce unnecessary 
voltage across the output devices by automati-
cally switching to a parallel mode when less 
voltage is required by the output circuitry 
and to a series mode when more voltage is 
required.
The amplifi er shall contain protection circuitry 
which limits the drive level placed on the output 
devices before their SOA (Safe Operating Area) 
is exceeded. This protection circuitry shall 
calculate the instantaneous voltage across and 
current through the output devices while factor-
ing in their simulated junction temperatures to 
predict how close they are to their operating 
limits. This protection will be called “ODEP.”
The amplifi er shall contain controlled slew-
rate voltage circuitry to protect it against radio 
frequency interference burnouts. It shall also 
be protected from current overload at its output 
stage. The slew rate of the amplifi er shall be 
greater than 30 volts per microsecond in stereo 
mode.
The amplifi er shall temporarily go into a stand-
by mode if its power transformer becomes 
excessively hot and shall automatically resume 
normal operation once it has cooled to a safe 
operating temperature.
The amplifi er shall contain loudspeaker protec-
tion circuitry which protects against DC, off-
center woofer cone movement and unwanted 
subsonic and ultrasonic frequencies.
Front-panel controls shall include an enable 
on/off switch and a detented input level control 
for each channel.
Rear-mounted controls shall include a switch 
which selects between stereo, bridged-mono 
and parallel-mono modes of operation, a com-
pressor switch for each channel which selects 
between off, fast or slow compressor speeds, a 
loudspeaker offset integration switch for each 
channel to turn the loudspeaker protection 
circuitry on or off, a sensitivity switch for each 
channel to select between 0.775 V, 1.4 V or a 
fi xed voltage gain of 26 dB for full rated output 
and a ground lift switch to isolate the signal 
ground from the chassis ground.
Internal controls shall include a VZ mode 
switch for each channel to control the operation 
of the variable impedance power supplies. The 
VZ mode switches shall determine whether the 
variable impedance power supplies are locked 
into the parallel mode, whether they are al-
lowed to automatically switch between parallel 
and series modes or whether the output device 
protection circuitry can automatically override 
automatic operation and force the use of the 
parallel mode.
The amplifi er shall be fully compatible with 
and shall provide appropriate input cables and 
connectors for Crown
®
 PIP2™ input modules. 
The amplifi er shall be fully compatible with 
the Harman Pro HiQnet™ System or Crown IQ
  
System
®
A defeatable compressor shall be provided for 
each input. Each compressor shall provide a 
fast mode with an attack time of 4 milliseconds 
and release time of 300 milliseconds and a 
slow mode with an attack time of 12 millisec-
onds and release time of 600 milliseconds.
Front panel indicators shall include an amber 
power enable indicator, an amber protection 
system indicator for each channel which shall 
normally be illuminated to confi rm the avail-
ability of reserve thermodynamic energy and 
which shall dim in proportion to limiting when 
the power demands of the output stages have 
been exceeded, a green dual-function signal 
presence/input-output comparator indicator 
for each channel which shall normally fl ash at 
moderate intensity to show the presence of an 
audio signal and which shall fl ash brightly if 
distortion of any kind equals or exceeds 0.05%, 
and a two color current load/current limit indi-
cator for each channel which shall glow green 
when load current is fl owing out of the ampli-
fi er and turn red when the maximum current is 
being delivered to the load.
The power amplifi er shall meet or exceed the 
following performance criteria. Input sensitivity 
for rated output: 26 dB voltage gain (unbal-
anced). Rated FTC output in stereo mode with 
less than 0.1% THD: 1030 watts per channel 
(20 Hz to 20 kHz) into 8 ohms. Rated FTC 
output in bridged-mono mode with less than 
0.1% THD: 2035 watts (20 Hz to 20 kHz) into 
16 ohms. Hum and noise: at least 105 dB (A 
weighted) below full rated output power. Phase 
response: ±20 degrees from 10 Hz to 20 kHz 
at 1 watt. Frequency response: 20 Hz to 20 
kHz, ±0.1 dB at 1 watt into 8 ohms per chan-
nel in stereo mode. Damping factor: greater 
than 1000 from 10 to 400 Hz into 8 ohms. 
Intermodulation distortion (SMPTE): less than 
0.05% from 411 milliwatts to rated power into 
8 ohms in stereo mode. Harmonic distortion at 
rated power into 8 ohms per channel (stereo 
mode): less than 0.05% from 20 Hz to 1 kHz 
and increasing linearly to less than 0.1% at 20 
kHz.
The amplifi er shall be safe when driving any 
kind of load including highly reactive ones.
The power requirements shall be 120 VAC at 
60 Hz. At idle, the amplifi er shall draw 90 watts 
or less.
The amplifi er chassis shall be constructed of 
steel with a durable black fi nish and shall be 
designed for fl ow-through fan-assisted ven-
tilation from the front to the rear panels. The 
amplifi er shall have an aluminum front panel 
with Lexan overlay and air fi lter media.
The dimensions of the amplifi er shall allow for 
19 inch (48.3 cm) EIA standard (RS-310-B) 
rack mounting. The amplifi er shall be 5.25 
inches (13.3 cm) tall, 15.875 inches (40.3 cm) 
deep behind the rack-mounting surface, and 
2.875 inches (7.3 cm) in front of the rack-
mounting surface.
The amplifi er shall weigh 77 pounds, 9 ounces 
(35.2 kg).
The amplifi er shall be designated the Crown 
Macro-Tech 5002VZ.
Architectural and Engineering Specifi cations