Дополнительное Руководство для Crown d-45
Crown International
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: 574-294-8200
FAX: 574-294-8FAX
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: 574-294-8200
FAX: 574-294-8FAX
8/06 136711-1C
Crown’s Three-Year, No-Fault, Fully Transferable Warranty
Crown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown ampli-
fi er—an unsurpassed industry standard. With this unprecedented No-Fault protection, your new
Crown amplifi er is warranted to meet or exceed original specifi cations for the fi rst three years of
ownership. During this time, if your amplifi er fails, or does not perform to original specifi cations,
it will be repaired or replaced at our expense. About the only things not covered by this warranty
are those losses normally covered by insurance and those caused by intentional abuse. And the
coverage is transferable, should you sell your amplifi er.
fi er—an unsurpassed industry standard. With this unprecedented No-Fault protection, your new
Crown amplifi er is warranted to meet or exceed original specifi cations for the fi rst three years of
ownership. During this time, if your amplifi er fails, or does not perform to original specifi cations,
it will be repaired or replaced at our expense. About the only things not covered by this warranty
are those losses normally covered by insurance and those caused by intentional abuse. And the
coverage is transferable, should you sell your amplifi er.
See your authorized Crown dealer for full warranty disclosure and details. For customers outside
of the USA, please contact your authorized Crown distributor for warranty information or call
574-294-8200.
of the USA, please contact your authorized Crown distributor for warranty information or call
574-294-8200.
Specifi cations subject to change without prior notice. Latest
information available at www.crownaudio.com.
information available at www.crownaudio.com.
Crown, Crown Audio and IOC are registered trademarks of
Crown International. Other trademarks are the property of
their respective owners. Printed in U.S.A.
Crown International. Other trademarks are the property of
their respective owners. Printed in U.S.A.
© 2006 Crown Audio
®
, Inc.
IMPORTANT:
IN MONO MODE USE
THE CH-1 INPUT ONLY.
THE CH-1 INPUT ONLY.
3
1
2
GND
+
TIP
RING
SLEEVE
GND
XLR WIRING
PHONE WIRING
REMPLACER
SEULMENT
REPLACE ONLY WITH
3AG 2A 125/250V
PUSH
PUSH
+
CH-2
CH-1
INPUTS
OUTPUTS
CH-2
CH-1
+
fi
INTERNATIONAL, INC.
ELECTRONIC EQUIPMENT
ELKHART, IN 46517
MADE IN U.S.A.
MADE IN U.S.A.
SERIAL NUMBER
0000
000000
MODEL
AC VOLTS
MAX POWER IN
U.S. PATENT NO. 3,493,879
AMPS.
50-400 Hz
WATTS
Input/Output
Input Connector: A balanced 3-pin female
Neutrik
Neutrik
®
combination XLR and ¼-inch
(6.35-mm) phone connector for each channel.
Input Impedance: Nominally 20 k ohms, bal-
anced. Nominally 10 k ohms, unbalanced.
anced. Nominally 10 k ohms, unbalanced.
Input Sensitivity: Confi gurable for 26 dB gain
or 0.775 volt sensitivity.
or 0.775 volt sensitivity.
Output Connector: Barrier block terminals and
stereo headphone jack. The headphone output
is unpadded, and in parallel with the main
amplifi er outputs.
stereo headphone jack. The headphone output
is unpadded, and in parallel with the main
amplifi er outputs.
Output Impedance: Less than 15 milliohms in
series with less than 3 microhenries.
series with less than 3 microhenries.
DC Output Offset: 10 millivolts or less.
Output Signal
Dual: Unbalanced, two channel.
Bridge-Mono: Balanced, single channel. Chan-
nel 1 controls are active; channel 2 controls
should be turned down.
nel 1 controls are active; channel 2 controls
should be turned down.
Protection
Input: The inputs have series resistance that
provides input overload protection. Controlled
slew rate voltage amplifi ers protect against
radio frequencies. The AC line is fused to pro-
tect against excessive current draw.
provides input overload protection. Controlled
slew rate voltage amplifi ers protect against
radio frequencies. The AC line is fused to pro-
tect against excessive current draw.
Output: Instantaneous limiting protection for
short circuits, open circuits and mismatched
loads.
short circuits, open circuits and mismatched
loads.
Turn-On: Minimum thumps. Power-up is
instantaneous with no program delay.
instantaneous with no program delay.
Construction
Durable black fi nish on aluminum front panel
with gray suede Lexan insert. Aluminum chas-
sis provides maximum heat conduction and
minimum weight.
with gray suede Lexan insert. Aluminum chas-
sis provides maximum heat conduction and
minimum weight.
Dimensions: 19-inch (48.3 cm) rack mount
width, 1.75 inches (4.5 cm) high, 8.5 inches
(21.6 cm) deep behind the mounting surface,
and a 0.625-inch (1.6-cm) protrusion in front of
the mounting surface.
width, 1.75 inches (4.5 cm) high, 8.5 inches
(21.6 cm) deep behind the mounting surface,
and a 0.625-inch (1.6-cm) protrusion in front of
the mounting surface.
Net Weight:
D-45: 8 lb, 11 oz (3.9 kg)
D-75A: 9 lb, 7 oz (4.3 kg).
D-75A: 9 lb, 7 oz (4.3 kg).
Shipping Weight:
D-45: 10 lb, 9 oz (4.8 kg)
D-75A: 11 lb, 4 oz (5.1 kg).
D-75A: 11 lb, 4 oz (5.1 kg).
Cooling: The amplifi er is totally convection
cooled. The entire aluminum chassis acts as
a conductor to dissipate heat. The covers and
front panel extrusion also act as heat sinks.
Much of the unit’s heat is conducted through
the extruded front panel. This design is used so
that front panel contact with the equipment rack
will also dissipate heat.
cooled. The entire aluminum chassis acts as
a conductor to dissipate heat. The covers and
front panel extrusion also act as heat sinks.
Much of the unit’s heat is conducted through
the extruded front panel. This design is used so
that front panel contact with the equipment rack
will also dissipate heat.
D-45
D-75A
D-75A
136711-1C_8-06_D45-D75A_datasheeSec12 Sec12
8/22/2006 11:14:28 AM