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INTRODUCTION
The name of MACROM has always been the synonym of tradition, of a European acoustic and
musical tradition in the pursue of the topmost sound quality and the fact that you chose to buy
this product makes it clear that you due agree with us. With the help of this manual you will be
able to maximise the enjoyment that you will get out of your new 45.40 Mono Amplifier.
This amplifier incorporates many advanced technical features and performances. Therefore, it
is essential that all signals sources, speakers and interconnection devices are of the highest
sonic quality. We strongly recommend the use of MACROM head units, power amplifiers,
speaker systems, high-quality interconnection cables and accessories, because the
integration of all these products is very complex. We therefore advise that you have installed
the 45.40 by your MACROM dealer.
This product has no user-adjustable controls; read this manual carefully in order to become
well acquainted with all the special features and functions of your new MACROM 45.40. Do
not hesitate to contact your MACROM dealer should you have any problem.
PRECAUTIONS
1. The unit may be damaged by wrong lead connection, therefore read carefully the
instructions of this manual for the correct connection of the leads.
2. The last lead to be connected is the one to the positive (+) terminal of the battery; connect
this lead only after having completed and checked all other connections.
3. Be sure to install the crossover in a position with good air circulation and good heat
dissipation.
4. In case of fuse replacement make sure to replace it with a fuse of the same amperage. If
fuses blow more than once, carefully check all electrical connections. Also have your car’s
voltage regulator checked. Do not attempt to repair the unit yourself. If repairs are ever
needed, take the unit to your MACROM dealer or to your nearest MACROM service
station.
5. In order to get the best possible performance from this unit, make sure that the
temperature inside your car is within the range of -10° C and +60° C before you switch the
unit on. Good air circulation is essential to prevent heat build-up inside the unit.
FEATURES
• FIVE-CHANNELAMPLIFIER, 2CH FRONT, 2CH REAR ALONG WITH MONO SUB
• HIGH-PASS AND LOW-PASS CROSSOVER BY MEANS OF SWITCH
• THREE-POSITION FREQUENCY CUTOFF SELECTOR SWITCH
• CONTINUOUS ADJUSTMENT OF INPUT SENSITIVITY
• CONTINUOUS PHASE ADJUSTMENT OF THE SUB OUTPUT (WAVE ALIGNMENT)
• 4CH OR 2CH INPUT SELECTOR
• MOS-FET POWER SUPPLY WITH DUAL DC-DC CONVERTER
• “CHECK CONTROL” STATUS INDICATOR
• THREE PROTECTION DEVICES
• REMOTE ON AND OFF
• GOLD-PLATED RCA INPUT CONNECTIONS
• PROFESSIONAL GOLD-PLATED SCREW-TYPE SUPPLY TERMINALS
O/M 45.40 (5T) 25/06/02 19:25 Page 6