9
I
NSTALLATION
9. Connect the speakers. Strip the speaker wires 5/8" and insert into the speaker terminal and
tighten the binding nut to secure into place. Be sure to maintain proper speaker polarity.
DO NOT chassis ground any of the speaker leads as unstable operation may result.
Use the following chart for the recommended wire
size for the load connected.
WARNING
:
RISK OF ELECTRIC
SHOCK.
Use extreme
caution when handling or
making speaker connections.
The voltage at the speaker
terminals can cause injury or death.Always ensure the amplifier is
off or disconnected from power prior to making any type of
speaker connection.
10. Perform a final check of the completed system wiring to ensure that all connections are accurate. Check all power and ground
connections for frayed wires and loose connections which could cause problems. Install inline fuse near battery connection.
NOTE:
Follow the diagrams for proper signal polarity.
CAUTION
: This amplifier is not recommended for impedance loads below 0.5 ohm stereo and 1 ohm bridged.
'Selectable Power Output'
The T15kW develops more power as the load on the amplifier is increased, (i.e. it puts out 500 Watts per channel at 4 ohms stereo,
1000 Watts per channel at 2 ohms stereo, 2000 Watts per channel at 1 ohm stereo, etc).This way the user can effectively 'select' how
much power they want the amplifier to provide by selecting the correct speaker load. In this way the amplifier can grow with the
system rather than needing to replace the amplifier with a bigger one when the system grows.
In a typical 'street' vehicle it may be difficult to physically fit enough speakers in the vehicle to handle the full output power of the
T15kW. This is one of the reasons behind making this amplifier a 4-channel amplifier. This way, channels 1 and 2 can be used for
all of the mid and high frequency speakers, and channels 3 and 4 can be used to drive all of the subwoofers. Even in this configuration
it may be difficult to physically fit enough speakers and/or subwoofers in the vehicle to handle the full output power. This is where
the 'Selectable Power Output' comes into play.
NOTE:
If the available power display constantly reads below 70%, check the supply power system or reduce the amount
of load connected to the amplifier.
To determine how much power (watts) the amplifier will develop per channel, the following formulae can be used.
For Stereo: Divide 2000 by the ohm load per channel.
For Bridged: Divide 8000 by the ohm load per channel.
Example:
On the following pages in Example 3, the load on channels 1 and 2 is 1 ohm stereo.
2000 ÷ 1 = 2000 Watts
per channel.
The load on the bridged channels 3 and 4 is 1.5 ohms.
8000 ÷1.5 = 5333 Watts
.
Minimum recommended impedance for 'street' use: 1-ohm stereo (2-ohms bridged)
These loads will provide the best sound quality, coolest amplifier temperatures, and a lighter load on the vehicle's electrical system.
Absolute minimum impedance for 'competition' use: 0.5-ohm stereo (1-ohm bridged).
These loads will provide the maximum output power, with burst power well over 15,000 Watts RMS without clipping and over
20,000 Watts RMS when clipped. The use of 4 AWG speaker wire is recommended when running at these impedance.
Strip 5/8"
(16mm)
Stereo Load
8
Ω
4
Ω
2
Ω
1
Ω
0.5
Ω
Bridged Load
16
Ω
8
Ω
4
Ω
2
Ω
1
Ω
Wire Size
14 AWG
12 AWG
10 AWG
8 AWG
4 AWG
SPEAKER WIRE SIZE CHART
Summary of Contents for Power T15kW
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