MANUALE HC inglese - all-in-one

Owner manual
HC Series amplifiers
HC 75.2 - HC 150.2 - HC 250.2 - HC 550.2
INDEX
Introduction
Important
Warning
Main Features
Specifications
Controls
Control Panel
Installation
Wiring System Nr. 1
Wiring System Nr. 2
Wiring System Nr. 3
Mach Impact HC amplifiers
to Impact subwoofer
Troubleshooting
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4-5
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14
INTRODUCTION
Congratulation on your purchase of a new Impact
High Current amplifier.
We, at Impact, are aware of the fact that your
choice of an HC series amp has been deeply
thought out and that your expectations are high;
be sure that this product will fulfill them all.
This HC amp is a sum of technology and good
sense that join sound reproduction quality with
the extraordinary capability to drive 1 Ohm
stereo as well as 2 Ohm mono loads.
This amp’s performances are unequalled and can
match any installation needs.
IMPORTANT
Impact HC amplifiers are advanced units, provided with a sophisticated control system that
guarantees superior performances.
HC amplifiers will give you a life of uncompromised musical service under the strict condition
of a perfect installation; this requires car audio
installation knowledge and technique as well as
proper installation tools and equipment.
For this reason, we highly recommend you to apply to professional Impact Authorized Installers to
be sure of the absolute guarantee in terms of best
performances and safe installation.
If you decide to install your HC amplifier by
yourself, we recommend you to read this owner’s
manual very carefully and to follow strictly all instructions inside.
2
WARNING
Impact HC amplifiers can reproduce high sound
pressure levels that can cause permanent damages to your hearing system by long exposures.
The human hearing system is so deceiving as it
gets used to high sound pressure levels very soon;
as a consequence, a high sound level, which is
perceived as «ordinary», can be really dangerous.
We want you to take care of your ears so, in order
to avoid any inconvenience, state a safe sound
level.
State it before your hearing get used to extreme
loud volumes, just acting as follows:
1. Start listening at the lowest volume
2. Increase slowly your volume level by steps till
the sound is clear and pleasant without distortion.
3. Once you have stated the comfort volume level, take due notice of it and do not overcome
it.
MAIN FEATURES
• Stereo, Bridged and Tri-Mode System
application Compatible
• Full Mos-Fet Circuitry
• 1 Ohm Stable Stereo Operation
• 2 Ohm Stable Mono Operation
• Variable input level controls
• Built-in excludible Low Pass/High Pass
Crossover
• Switchable low pass crossover slope
• 24 dB/Oct Variable subsonic Filter
• Built-in adjustable Bass-Boost
• Bass boos remote control phone jack
• High Temperature Thermal Management
System Circuitry
• Overload Protection System
• Output Short Circuit Protection
• DC Offset Circuit Protection
• RCA Line Output
SPECIFICATIONS
HC 75.2
HC 150.2
HC 250.2
HC 550.2
RMS Power @ 4 Ohm - 13,8 V
W
2 x 75
2 x 150
2 x 250
2 x 500
RMS Power @ 2 Ohm - 13,8 V
W
2 x 150
2 x 270
2 x 400
2 x 700
RMS Power @ 1 Ohm - 13,8 V
W
2 x 225
2 x 325
2 x 500
2 x 900
Mono Bridged RMS Power @ 4 Ohm - 13,8 V
W
1 x 300
1 x 540
1 x 800
1 x 1.400
Mono Bridged RMS Power @ 2 Ohm - 13,8 V
W
1 x 450
1 x 650
1 x 1.000
1 x 1.800
Total Harmonic Distortion
%
0,03
0,03
0,03
0,03
Input Sensitivity
V
0,2 ÷ 9
0,2 ÷ 9
0,2 ÷ 9
0,2 ÷ 9
Input Impedance
Kohm
47
47
47
47
Frequency Response
Hz
10 ÷ 30.000
10 ÷ 30.000
10 ÷ 30.000
10 ÷ 30.000
Signal to Noise Ratio
dB
> 95
> 95
> 95
> 95
250
250
250
250
Damping Factor
High Pass Crossover Range
Hz
10 ÷ 4.000
10 ÷ 4.000
10 ÷ 4.000
10 ÷ 4.000
Low Pass Crossover Range
Hz
40 ÷ 4.000
40 ÷ 4.000
40 ÷ 4.000
40 ÷ 4.000
Subsonic Filter Range (24 dB/Oct)
Hz
10 ÷ 150
10 ÷ 150
10 ÷ 150
10 ÷ 150
Bass Boost 45 Hz
dB
0 / +18
0 / +18
0 / +18
0 / +18
Bass Boost Remote Control Jack
Yes
Yes
Yes
Yes
Line Output
Yes
Yes
Yes
Yes
260x60x345
260x60x390
260x60x450
260x60x855
Dimensions (W x H x D)
mm
3
CONTROLS
The Impact HC amplifiers feature an extremely
flexible set of input and output controls
which permit the widest range of installation
opportunities. In order to ensure best
performance, any adjustment should be made
after the amplifier is installed and all input,
speaker and power connections are completed.
CONTROL PANELS
1
2
3
4
5
6
7
12
1. RCA LINE INPUT JACKS
It allows left and right inputs to be
connected to the amplifier using RCA plugs.
2. SUBSONIC FILTER FREQUENCY CONTROL
Adjust crossover frequency of the subsonic
filter only, from 10 Hz to 150 Hz.
3. LOW PASS FILTER FREQUENCY CONTROL
Adjust crossover frequency of the low pass
output only, from 40 Hz to 4.000 Hz.
4. STEREO/MONO SWITCH
When set in MONO mode, the low pass signal
is mono with a 24 dB/Oct crossover slope.
When set in STEREO mode, the low pass signal
is stereo with a 12 dB/Oct crossover slope.
4
8
9
11
10
5. AMPLIFIER X-OVER SELECT SWITCH
a. LOW position: crossover operates in lowpass mode
b. FULL position: crossover off
c. HI position: crossover operates in high-pass
mode
6. HIGH PASS FILTER FREQUENCY CONTROL
Adjust the crossover frequency of the high pass
output only, from 10 Hz to 4.000 Hz.
7. INPUT LEVEL CONTROL
Provides input level adjustment from 200 mV
to 9 V.
8. BASS EQ CONTROL
Adjust the 45 Hz frequency output from + 0 to
+18 dB.
CONTROL PANELS
9. POWER LED (green)
Illumination of this led indicates that
the
amplifier
is
operating
normally.
10. PROTECTION LED (red)
Illumination of this led indicates that a short
circuit exist somewhere in your system. The
amplifier turns off.
11. RCA LINE OUTPUT JACKS
Line out signal is automatically set by the
position of the amplifier crossover select switch
(5).
When amplifier crossover switch is in LOW
position (i.e. 150 Hz), line output signal is
automatically set in HIGH PASS mode at 150
Hz.
When amplifier crossover switch is in Full
position line output signal is Full Range
When amplifier crossover switch is in HI position
(i.e. 200 Hz), line output signal is automatically
set in LOW PASS mode at 200 Hz
12. BASS BOOST REMOTE CONTROL PHONE
JACK
Connecting the optional remote controller
(HC-R2) to this plug, you can set the bass boost
while driving
5
INSTALLATION
Please read Installation Precaution before
installing your Impact HC amplifier, and then
refer to the diagrams provided to connect
power, speaker and audio input connections
according to your own system design.
Installation Precaution
• For safety, disconnect the battery during
installation. Confirm that your head-unit
or other equipment is turned off while
connecting the input jacks and speaker
terminals.
• Select a location inside your vehicle which
has adequate ventilation and protected from
dust and moisture
• Before drill or cut any holes, investigate your
car’s layout very carefully. Take care when
you work near gas tank, hydraulic and fuel
lines, electrical wiring.
• Do not operate the amplifier when unmounted. Fix all audio system components
securely within your car to prevent shorts
and damage especially in case of an
accident.
• Do not mount this amplifier so that the wire
connections are unprotected or likely to be
damaged by nearby objects.
• If you need to replace a fuse, only replace it
with a fuse of exactly same type and rating.
• Use proper sized wires to prevent electrical
fire, system damages and to obtain peak
performance.
Amplifier Installation
• Bolt the amplifier to the mounting surface.
Do not mount the amplifier upside down, as
it will restrict airflow over the heat sink.
• Using a 2 AWG, or larger, wire, run a ground
wire from the GND terminal of the amplifier
to the nearest chassis ground. Make sure
that the connection to the chassis is rust free
and cleared of all paint.
• Run a wire (same gauge of ground wire)
from the positive terminal of the battery to
the + 12 V terminal of the amplifier. Install
an in-line fuse holder at about 45 cm. (18”)
from the positive (+) terminal of the battery.
• If multiple amplifiers are to be run, and
a distribution block is used, then run the
largest gauge wire from the battery (+)
to the location in the vehicle where the
distribution block is located. Install a fuse
holder (or a circuit breaker) at about 45 cm.
(18”) from the positive (+) terminal of the
battery. This fuse/circuit breaker must be
able to handle the total current of amplifiers
being used. Now, individually fuse each
amplifier after the distribution block at the
amplifier location.
• Using a 12 AWG wire, run the Remote wire
from the REM terminal of the amplifier to
the remote output of head-unit.
• Connect the RCA input terminals of the
amplifier to the signal source using top
quality interconnect.
Set amplifiers controls as described in the
system you choose and according to the
wiring diagrams that follow in this manual.
t
of
WIRING SYSTEM Nr. 1
2 channel stereo configuration
Settings:
• Adjust the Input Level control to suit the signal output from the source.
• For Full Range Speaker System set the selector AMPLIFIER X-OVER to the FULL position
• For Low Pass Speaker System (i.e. HC used as
a subwoofer amplifier) set the selector AMPLIFIER X-OVER to the LOW position. Then
set the Low Pass Frequency control (LOW
PASS) to suit the speakers.
• For High Pass Speaker System (i.e. front system, tweeter driving) set the selector AMPLIFIER X-OVER to the HI position. Then set the
High Pass Frequency control (HIGH PASS) to
suit the speakers.
• You can adjust the bass response setting the
BASS EQ control to an increase up to + 18
dB.
to output
of Head Unit
to Battery
FUSE
to Remote Control
from Head Unit
Connections:
• Power (+ 12 V, GND, REM) connections: refer
to the above diagram
• Input and speaker connections: as shown in
above diagram
Left Speaker
Right Speaker
WARNING: an increase of 3 dB means the double of power: use the BASS EQ control with care
and moderation since you may cause damages to
the subwoofer (not covered by warranty) .
WIRING SYSTEM Nr. 2
Simultaneous Stereo and Mono Configuration
to output
of Head Unit
to Battery
FUSE
High Pass Passive Crossover
Right Satellite Speaker
to Remote Control
from Head Unit
Left Satellite Speaker
Low Pass Passive Crossover
8
Mono Speaker
WARNING !
This wiring requires a minimum speaker
impedance of 2 Ohm or more (both front system
and subwoofer)
Connections:
• Connect a stereo signal source to amplifier
inputs
• Connect the speakers as shown on the above
diagram. NOTE MINIMUM IMPEDANCES!!!
Settings
• Adjust the Input Level control to suit the
signal output from the source.
• Set the Crossover switch selector (AMPLIFIER
X-OVER) to the FULL position.
• You can adjust the bass response setting the
BASS EQ control to an increase up to + 18
dB.
WARNING: an increase of 3 dB means the double
of power: use the BASS EQ control with care and
moderation since you may cause damages to the
subwoofer (not covered by warranty).
9
WIRING SYSTEM Nr. 3
AMP B - front
Two amplifiers in a Bi-amp System
(front system + mono subwoofer)
AMP A - front
AMP B - rear
to output
of Head Unit
to Battery
AMP A - rear
FUSE
to Remote Control
from Head Unit
Left Satellite
Speaker
Right Satellite
Speaker
to Battery
10
FUSE
to Remote Control
from Head Unit
Mono Speaker
Amplifier A Input and Speaker Connections
• Connect the Input signal to amplifier A as
shown in above diagram
• Connect the mono subwoofer as shown in
above diagram
Amplifier A Settings
• Adjust the LEVEL control to suit the signal
output from the source.
• Set the Crossover switch selector
(AMPLIFIER X-OVER) to the LOW position.
Then set the Low Pass Frequency control
LOW PASS to suit the Subwoofer.
• Select the STEREO/MONO switch to MONO
-24 dB position.
• Set the SUBSONIC filter frequency to desired
position (we suggest a 20 to 40 Hz setting)
• You can adjust the bass response setting the
BASS EQ control.
Amplifier B Input and Speaker Connections
• Connect the LINE OUT of Amplifier A to
the LINE INPUT of Amplifier B. Be careful to
maintain polarity for correct imaging.
• Connect the front speakers to the speaker
connector terminals as shown on left of
above diagram.
Amplifier B Settings
• Adjust the LEVEL control to suit the signal
output from the source.
• Set the Crossover switch selector
(AMPLIFIER X-OVER) to the FULL position.
WARNING: an increase of 3 dB means the
double of power: use the BASS EQ control
with care and moderation since you may cause
damages to the subwoofer (not covered by
warranty).
11
Mach Impact HC amplifiers to Impact subwoofer
Great power handling and High Current
capabilities make Impact HC amplifiers the best
choice for powering a subwoofer system.
Here are some 2 Ohm subwoofer system mono
wiring configuration for the best performance.
12
Subwoofer 67 serie
Subwoofer 57 serie
Subwoofer 37-47 serie
Subwoofer 27 serie
13
TROUBLESHOOTING
Amplifier will not power up
• Check fuse
• Check all power connections (+ 12 V, Ground
and Remote)
• Check for at least 3 V on remote wire
Amplifier powers up, but then go into
Protection mode
All HC amplifiers are equipped with a diagnostic
device that turns the amp off immediately in case
of
shorted speaker wire (or shorted speaker) or
faulty amplifier.
To evaluate, disconnect all speaker wires and
re-power the amplifier: if it doesn’t go into
protection mode the problem is in the speaker
or in the speaker wire. If the amplifier goes into
protection mode with speaker leads disconnected,
the amplifier is faulty.
The amplifier can be restarted by turning the
remote power OFF and ON again.
Overheating
HC amplifiers feature a built-in thermal control
device that turns them off in case of extreme
temperature conditions. If this case occurs, allow
the amplifier to cool down before attempting to
restart it.
Thermal overload conditions are caused by a
lack of reasonable airflow over the heat sink or
by driving speaker of lower impedance than
recommended.
14
No sound
• Check radio volume and fader control
• Check speaker wires for loose or disconnect
• Check RCA input cable for defective, loose or
disconnect
• Check speaker wires for loose or disconnect
Weak output
• Check head unit volume and fader control
• Check amplifier level control setting
• Check that the correct crossover type has
been selected for the speaker being used
• Check RCA cables
• Check the head unit with another amplifier in
good working condition.
Only one channel works
• Check the balance control on the head-unit
• Confirm that all terminal strip connections are
secure and tight
• Reverse the input RCA plugs at the amplifier.
If the channel which is silent switches to the
other side the problem is either in the headunit or in the RCA interconnect
Hiss noise
• Check Input Level control of the amplifier
• Check head unit and disconnect input RCA
cable. If the hiss disappears RCA cable or
head-unit are faulty
Alternator whine in speakers
• Confirm that the amplifier and any other
signal sources are properly grounded.
• Remove RCA input from amplifier. If the whine
disappear, check input cable and head-unit