Smart Technologies TA6300 User Manual
Copyright 1997 by SMART Devices, Inc.
5945 Peachtree Corners East
Norcross, GA 30071-1337
TA6300 SIX CHANNEL POWER AMPLIFIER
INSTALLATION & OPERATION MANUAL
TABLE OF CONTENTS
SECTION 1 INTRODUCTION ..................................................... 2
SECTION 2 INST ALLATION ..................................................... 2
SECTION 3 FEATURES ..................................................... 3
SECTION 4 SPECIFICA TIONS ..................................................... 5
SMART products are designed to deliver unsurpassed quality in workmanship and performance.
The following information gives detailed instructions on the installation and operation of the
SMART T A6300 Power Amplifier . We strongly encourage new owners of the T A6300 to thoroughly read this entire manual before placing their new SMART products into service. This will
ensure that the T A6300 will be operated properly to give the superior performance that it was
designed to deliver.
For service or installation assistance, please call our T echnical Support Department between the
hours of 8 a.m.-5 p.m. E.S.T ., Monday - Friday
1-800-45-SMART
LIMITED WARRANTY: SMART products and accessories are warranted against malfunction or failure due to defects in workmanship or
materials for a period of one year from the date of shipment. If a problem occurs during the warranty period, the unit will be repaired, or
replaced at our option, without charge for materials or labor. If air frieght is requested by the dealer, the difference between air and
surface charges will be billed to the dealer. This limited warranty does not cover products that have been abused, altered, modified, or
operated in other than specified conditions. Prior factory approval is required on all returns. Returned equipment or defective parts must
be shipped freight prepaid to us by the dealer or customer.
Our limited warranty doesn not cover damages resulting from accident, misuse or abuse, lack of responsible care, or failures not attributable to manufacturing defects, except as provided herein. SMART Devices, Inc. makes no warranties, express or implied, including
warranties of merchantability or fitness for a particular purpose.
RETURN POLICY: Factory autorization MUST be obtained before returning any product. A 15% restocking charge will be issued on unused
equipment (in original box) that is returned for credit. Credit is issued to the dealer’s account. The credit may be used against future
pruchases and no cash transactions are offered. All returns must be shipped freight prepaid by the dealer. Equipment returned without a
factory RA (Return Authorization) will be refused.
TA6300 6 Channel Power Amplifier
SECTION 1
Introduction
The SMAR T model TA6300 is a professional sixchannel amplifier featuring DC protection, quick
interconnect with SMART companion products,
soft clip speaker protection and massive heatsink
extrusions with internal D.C. fan assist to make
sure your amplifier stays cool even when the
music is hot. T A6300 deli vers 200 watts per
channel into 8 ohms on five channels simultaneous with 400 watts into 4 ohms on the sixth
(subwoofer) channel.
Circuit Description
T o assure absolute long-term reliability , the
output section of each channel incorporates
multiple Motorola Po wer T ransistors, which
provide three times the amplifiers rated power in
watts of dissipation per channel. T he output
stage is arranged in a fully complementary
format for class AB/2 operation. T he bias current
is evenly distributed among all output devices.
Bias thermal compensation is accomplished by
thermally mating a bipolar semiconductor
junction to the heat-producing output device.
T riple diffused high power driver transistors are
employed along with high speed, high voltage
silicon annular devices for the pre-driver and
inverter stages. Utilization of these components
provide the required separation of FT break
points for absolute stability . Fully complementary drive and loading is utilized throughout.
Only 20dB of negative feedback is used to
reduce forward transfer distortion to minimum
levels. VI type energy limiters are incorporated
for short circuit protection of the amplifier . Due
to the unusually large safe operating area of
output stage, the limiters do not actuate until
driving a forty-five degree reactive load of under
2 ohms at full power .
Construction
The amplifiers are designed on an all-modular
concept permitting rigorous pre-assembly module testing and maximum service accessibility .
Each functional module is fully tested before
final assembly . Although components of the
highest quality are used throughout, each amplifier is burned in, prior to shipment, at the worst
case operating point to eliminate any possibility
of component malfunction. All c hassis components are precision machined from high quality
aluminum and 16-gauge sheet steel stock. T he
entire package concept is directed toward
maximum efficiency of space and structure,
accounting for the compact size and light
weight.
SECTION 2
Installation
All SMART amplifiers are designed for mounting
in a standard 19-inch equipment rack, or many
of the 19-inch rack type portable cases available. T he T A6300 require 7 inches of v ertical
panel space, with 15" inches required behind
the panel. T otal depth including the handles is
16-3/8" inches. F ront panels are machined from
solid aluminum stock, with a black powdercoat
finish and sturdy rack mount handles.
Placement of the amplifier is not critical for
normal operation, provided sufficient airflow is
allowed to reach the heatsink arra y . If the unit is
to be placed on a shelf, or a similar unenclosed
area, allow four inches of clearance behind the
fan air intake to permit airflow through the arra y .
If the amplifier is to be mounted in an equipment
rack or cabinet with heat producing equipment,
be sure that environmental operating temperatures do not exceed 55 degrees C (131F).
Should overheating occur because of inadequate ventilation, the temperature protection
circuitry will automatically protect the amplifier .
When a safe operating temperature is restored,
the amplifier will return to normal operation.
2
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