Hafler PRO5000 Installation And Operation Manual
Hafler
INSTALLATION
fbd
OPERATION
Please refer to this serial
number in all communications
regarding this equipment.
SPECIFICATIONS INTRODUCTION
8
OHM POWER RATING: 325 watts continuous aver-
age power per channel at less than
.025%
total harmonic
distortion from
2OHz
to 20kHz with both channels driven.
4 OHM POWER RATING: 450 watts continuous average power per channel at less than
.035%
total harmonic
distortion from
2OHz
to 20kHz with both channels driven.
8
OHM BRIDGED POWER RATING:
900 watts continuous average power at less than 0.035%
total harmonic distortion from
2OHz
to
2OkHz.
IM DISTORTION (IHF):
Less than .O 1% from 1 watt to 325 watts, both channels
into
8
ohms.
FREQUENCY RESPONSE INTO
8
OHMS:
-3dB, 4Hz
and
1OOkHz
at 1 watt
-.5dB, 1OHz
and 40kHz at 1 watt
SIGNAL TO NOISE RATIO, UNWEIGHTED:
Exceeds 95dB referred to 325 watts into 8 ohms,
100 dB (A-weighted)
TYPICAL CHANNEL SEPARATION:
2OHz: >
80dB
1kHz: >
75dB
20kHz:
> 6OdB
DAMPING FACTOR: 300 up to
1kHz
into 8 ohms.,
200upto
1OkHz
into8ohms.
SLEW RATE: 1
kHz, 12OV
p-p square wave: 40 volts
per microsecond.
VOLTAGE GAIN: 29dB
INPUT IMPEDANCE: 47,000 ohms, balanced
INPUT SENSITIVITY: 1.95 volts rms per phase for
325 watts into
8
ohms.
POWER CONSUMPTION:
12OV 6OHz
Line:
325 watts into 8 ohms both channels:
132OVA
450 watts into 4 ohms both channels:
18OOVA
SIZE: 3-
1/2”
high,
19”
wide,
14”
deep behind faceplate,
l-1/2” in front of faceplate including handles
NET WEIGHT: 40 lbs.
SHIPPING WEIGHT: 42
lbs.
ALL SPECIFICATIONS SUBJECT TO CHANGE
WITHOUT NOTICE.
The Hafler PRO5000 is a high power, low profile, two
channel power amplifier intended for professional sound
installations. It is the result of modern packaging combined
with the performance and reliability characteristics found
in previous Hafler designs. The PRO5000 has an optimized
combination of features needed for a professional power
amplifier: high power, small package size, rugged case
construction, balanced inputs, full bridgeability for mono
applications, continuously variable DC fan for quiet operation, and a variety of simple, yet effective protection
systems. Above all, however, the PRO5000 maintains the
well known
Hafler
tradition of superior sounding power
amplifiers.
OVERVIEW OF AMPLIFIER
The PRO5000 is a standard two-rack height fan cooled
design utilizing fully complimentary drive circuits and
lateral type MOSFET output transistors. The amplifier has
full subtractor balanced input circuits for good noise rejection. The drive circuitry is a high performance arrangement
with a double differential JFET input stage. Film capacitors
are used throughout the circuitry to ensure minimum degradation of the audio signal.
The 19” extruded aluminum front panel includes handles
for ease of installation, separate gain controls for each
channel, signal present and clipping indicators for both
channels, and the power switch which has a pilot lamp. The
rear panel has both
1/4”
phone and XLR connectors for the
inputs,
5-way
binding posts for the outputs, a switch to
bridge the amp for mono mode. and a switch to connect or
disconnect the audio ground from the chassis ground.
The protection systems include separate power supply
fuses on DCV+ and
DCV-
for each channel, thermal
sensing circuits that monitor output device temperature and
correspondingly control the DC fan, a relay to disengage
the load if excessive DC offset is detected or if the output
device temperature becomes too high, a delay to avoid
dangerous turn-on/off transients, and an AC line fuse if all
else fails. This amplifier does not have, and by virtue of
design, does not need the current limiting circuits which are
required to protect conventional bipolar or vertical MOSFET
output devices. The less common lateral
MOSFETs
used in
Hafler
amplifiers inherently limit the current ONLY under
abnormal conditions, thus avoiding ‘thermal runaway’ and
subsequent device destruction. This gives the dual advantage of greater reliability from simpler circuitry, and the
elimination of one of the chief causes of distorted signals
the harsh sounds of the actuation of complex protective
circuits.
-l-
1.
Read Instructions
AII
the safety and operating instructions of your
Hafler
equipment should be read before power is applied to
the equipment.
2.
Retain Instructions
These safety and operating instructions should be held
for future reference.
3.
Heed Warnings
All warnings on the equipment and in the operating
instructions are important and should be followed.
4.
Follow instructions
All operating and use instructions are important and
should be followed.
5.
Heat
The equipment should be kept away from areas of high
temperature, such as heater vents, radiators, stoves/
ovens, fireplaces, etc.
6.
Ventilation
The equipment should be used in an area suitable for
proper ventilation. Care should be taken to not impede
airflow in and around the cabinet. Do not mount on a
carpeted shelf or in an enclosure consisting of more than
five sides. Allow for proper clearance above the equipment.
7.
Water and Moisture
8.
The equipment should not be used in or around water
such as a bathtub, sink, or swimming area. Also, the
equipment should not be used in areas prone to flooding
-
such as a basement.
Power Sources
The equipment should be connected only to a power
source of the same voltage and frequency as that listed
on the rear panel near the power cord entry point.
9.
Power Cord Protection
NOTICE - IMPORTANT SAFETY INFORMATION
DO NOT DISPOSE OF - KEEP FOR FUTURE REFERENCE
Safety Instructions
Power cords should be run so that they do not interfere
with the movement of
objects
in the room - people, fan
blades, utility carts, etc. Also, care should be taken that
the cord is not pinched or cut, and placed so that it is not
in danger of being pinched or cut, as in under a rug,
around a tight corner, etc.
10.
11.
12.
13.
14.
15.
Grounding and Polarization
The power supply cord is of a polarized type designed
to reduce the risk of electric shock sustained from a live
cabinet. It is assumed to be of a suitable length for most
uses of the equipment. The use of extension cords and
power strips is discouraged unless they are of suitable
rating to deliver the required current for safe equipment
operation and can be used so that the polarization of
the plug is not defeated. If an extension cord is required,
it is important that the blades of the plug be able to insert
fully into the receptacle. Professional amplifiers with a
S-conductor line cord must never have the ground pin
of the plug defeated.
Non-Use Periods
During extended periods of non-use the power supply
cord should be kept unplugged from the power source.
Cleaning
The equipment should be cleaned only as detailed by
the owners manual.
Object
and Liquid Entry
Care should be taken so that
objects
and/or liquids,
such as cleaning fluids, are not spilled into the enclosure
of the equipment.
Damage Requiring Service
HafIer
equipment should be serviced by qualified ser-
vice personnel when:
A.
B.
C.
D.
E.
The power supply cord or plug has been
damaged; or
Objects
have fallen, or liquid has been spilled
into the equipment; or
The equipment has been exposed to rain; or
The equipment does not appear to operate
normally or exhibits a marked change in performance; or
The equipment has been dropped, or the enclosure damaged.
Servicing
The user should not attempt to service the equipment
beyond that which is described in the manual. All other
service
should be referred to qualified service person-
nel.
-2-
16. Carts and Stands
The equipment should be used only with a cart or stand
of sufficient strength and stability for the use intended.
16A.
An equipment and cart combination should be moved
with care. Quick stops, excessive force, and uneven
surfaces may cause the equipment and cart combination
to topple.
17. Power Lines
An outdoor antenna should be located away from power
lines.
18.
Outdoor Antenna Grounding
If an outside antenna is to be used with the
HafIer
Tuner,
be sure that the antenna system is grounded so as to
provide some protection against voltage surges and built
up static charges. Section 8 10 of the National
Electrical
Code,
ANSl/NFPA
No.
70-
1984,
provides information
with respect to the proper grounding of the mast and
supporting structure, grounding of the lead-in wire to an
antenna discharge unit, size of grounding conductors,
location of antenna discharge unit, connections to
grounding electrodes, and requirements for the grounding electrode. See Figure
1.
EXAMPLE OF ANTENNA GROUNDING AS
PER NATIONAL ELECTRICAL CODE
Antenna
Lead In
Wire
7
Antenna
Discharge Unit
.
(NEC Section 810-20)
Grounding Conductors
(NEC Section 810-21)
Power Service
Grounding
\+
Electrode System
(NEC Art 250, Part H)
FIGURE 1
-3-
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