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Operation

10

Signature 1.5

The Signature 1.5 may be operated in either a manual or
automatic mode. If the unit is being used in standalone
operation you should follow the instructions below for
Manual Operation. When the 1.5 is connected to another
Signature Series product or to another compatible device,
follow the instructions for Automatic Operation.

Operation of the Signature Series 1.5 is simple. There are
no controls to adjust once the installation is complete.

Manual Operation

For conventional, standalone operation, first make all
connections to speakers and input sources as outlined on
the previous pages. Make certain that the front panel

Power Switch

1

is in the fully extended “off” position

and then connect the 

AC Power Cord

to a wall-

mounted AC outlet with sufficient current capacity. Note
that the 

LED Indicator

3

will glow red.

To turn the unit on, press the front panel 

Power Switch

1

until it is flush with the front panel. Once the switch

is turned on, the 1.5 will go into a brief Warm-Up mode,
as indicated by the 

LED Indicator

3

flashing green.

This is normal, and it protects your speakers from dam-
age as the amplifier stabilizes.

When the 1.5 is fully ready for operation the LED
Indicator will go out and the 

Power-On Indicator

2

will glow blue behind the word 

S

IGNATURE

. At this 

point you will begin to hear audio from the speakers
connected to the 1.5.

You are now ready to enjoy the finest sonic performance
available. No further adjustments are needed, as all
volume controls and/or level adjustments are made at
your preamp controller or surround processor.

To turn the 1.5 off, press the 

Power Switch

1

and

release it so that it protrudes from the front panel. The
unit is in the “off” position when the LED Indicator
returns to a red color.

Note:

Always turn on the source components and

processor in your system first, and turn on your amplifier
last. This avoids the possibility of any turn-on pops or
transients from other equipment being amplified and
sent to your speakers, where they may cause damage.
Always start with a low volume level on your controller
or preamp to avoid damage to your speakers.

Automatic Operation

Before proceeding, make certain that the connection
between the Signature 1.5 and the trigger source has
been properly made as outlined previously. At this point
the triggering unit should be turned off.

With the 

Power Switch

1

in the fully extended “off”

position, plug the 

AC Power Cord

into a wall-

mounted AC outlet with sufficient current capacity. 
The 

LED Indicator

3

will glow red.

Press the 

Power Switch

1

so that it is in the “on”

position and flush with the front panel. At this point the

LED Indicator

3

will turn amber, indicating that the

1.5 is in a Standby mode and ready to turn on when it
receives a signal from the Signature 2.0 or other device.

To activate the 1.5, turn on the Signature 2.0 or the other
device that is connected to the 

Power Amp Trigger In

§

.

Once the trigger signal is received the 1.5 will go 
into a brief Warm-Up mode, as indicated by the 

LED

Indicator

3

flashing green. This is normal, and it protects

your speakers from damage as the amplifier stabilizes.

When the 1.5 is fully ready for operation the LED
Indicator will go out and the 

Power-On Indicator

2

will glow blue behind the word 

S

IGNATURE

. At this 

point you will begin to hear audio from the speakers
connected to the 1.5.

Once your system is turned on, you are ready to enjoy
the finest sonic performance available. There are no
controls to adjust. All volume and level adjustments are
made by your preamp, controller or surround processor.

At the conclusion of your listening session, there is no
need to manually turn off the 1.5. When the 2.0 or other
triggering device is turned off, the 1.5 will return to the
Standby mode and the 

LED Indicator

3

will turn amber.

Important Note:

If you will not be using your audio

system for an extended period of time, such as during 
a vacation, it is always a good idea to turn the unit off
using the Power Switch. This will prevent the automatic
turn-on circuits from accidentally turning the system on
during your absence.

Sig 1.5 om (b)  9/17/98 10:33 AM  Page 10

Summary of Contents for SIGNATURE 1.5

Page 1: ...1 5 Two Channel Bridgeable Amplifier Owner s Manual...

Page 2: ...Staple or clip your original invoice here...

Page 3: ...SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE CAUTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT ATTENTION POUR EVITER LES CHOCS ELECTRIQUES INRODUIRE LA LAM...

Page 4: ...ct your retailer or custom installer They are your best sources of product information You may also contact Harman Kardon via the World Wide Web at www harmankardon com Welcome to the Harman Kardon fa...

Page 5: ...do not intend to use the amplifier for a considerable length of time disconnect the plug from the AC outlet Do Not Open the Cabinet There are no user serviceable components inside this product Opening...

Page 6: ...possible fire hazard If the unit is to be enclosed in a cabinet or rack make certain that there is adequate air circulation with means provided for hot air to exit and for cool air to be brought in T...

Page 7: ...off the unit is still connected to the AC power supply 2 Power On Indicator When the word SIGNATURE is illuminated in blue the 1 5 is in a normal operating condition 3 LED Indicator The color of this...

Page 8: ...nal ONLY to the Positive terminal on your speaker Important Note When the 1 5 is used in the Bridged Mono mode do not connect a speaker with an impedance less than 8 ohms Channel Two Bridged Input Whe...

Page 9: ...y be obtained as a Power Adapter from many electronics retailers Consult your dealer for further information Plug the AC adapter into a switched outlet that will be activated when you wish to have the...

Page 10: ...certain that the Bridge Normal Switch is in the BRIDGE position see page 9 Important Note When the 1 5 is used in the Bridged Mono mode do not use speakers with an impedance of less than 8 ohms When...

Page 11: ...y Remember to connect the negative or black wire to the matching terminal on the speaker Similarly the positive or red wire should be connected to the like terminal on the speaker Note While most spea...

Page 12: ...BRIDGE NORMAL 1 CHANNEL ONE RIGHT SPEAKER IN 2 CHANNEL TWO LEFT BRIDGE 4 MIN BRIDGE 8 MIN AC INPUT Processor or Preamp Speaker or Subwoofer Installation for Bridged Mono Applications Important Note Wh...

Page 13: ...r equipment being amplified and sent to your speakers where they may cause damage Always start with a low volume level on your controller or preamp to avoid damage to your speakers Automatic Operation...

Page 14: ...ill flash and alternate between red and amber When this occurs IMMEDIATELY turn off the unit using the Power Switch and correct the problem Then turn the unit back on If the unit continues to go into...

Page 15: ...n 1 x 650 watts 8 ohms 20Hz 20kHz 0 03 THD Bridged Mono Mode 2 x 325 watts 4 ohms 20Hz 20kHz 0 03 THD Both Channels Driven 130 Amps 1Hz 170kHz 3dB 1Hz 100kHz 0 03 at rated output 87dBr between any two...

Page 16: ...Printed in the United States Part 1111 HKSIG15 HA160 0005 A...

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