Connecting the Unit
Connecting the Power Terminal
•Always use the special red battery and ground wire
1. Pass the battery wire from the |
engine compartment to the interior |
of the vehicle. |
• After making all other connections to the |
amplifier, connect the battery wire terminal of |
the amplifier to the positive (+) terminal of |
4.Connect the wires to the terminal.
•Fix the wires securely with the terminal screws.
| GND terminal |
Power terminal | System remote |
| control terminal |
| System remote |
| control wire |
| Ground wire |
Connecting the Speaker Terminals
1.Expose the end of the speaker wires using nippers or a cutter by about 10 mm (3/8 inch) and twist.
Twist
10 mm (3/8 inch)
2. Attach lugs to speaker wire ends. |
4. Push on the terminal cover.
Connecting the Speaker wires
The speaker output mode can be
Two-channel mode (stereo)
C1
L1 Woofer (Mono)
C1 | |
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Setting the Filter Constant |
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6 dB/octave |
| filter and |
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L1 | 0dB | bass/mid): 6 dB/octave |
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L2 |
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fC | f |
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2fC |
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| fCL | fCL | fCH | 2fCH |
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the battery. |
Engine |
Fuse (30 A) compart- Interior of |
Lugs not supplied. |
• Use pliers, etc., to crimp lugs to wires. |
High-pass filter (for mid/mid-high): 6 dB/octave
• A |
combination of filters. The inductance (L) and |
ment | the vehicle |
Fuse (30 A) | Drill a 14 mm |
Positive terminal | (1/2 inch) hole |
Insert the | into the vehicle |
grommet into the vehicle | body. |
body. |
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Battery wire
Lug
Speaker wire
3. Connect the speaker wires to the |
speaker terminals. |
• Connect the speaker wires, passing them |
(Right) Speaker (Left)
One-channel mode (mono)
C1 (Right)
L2 | C2 | ||
(Right) | |||
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Woofer/subwoofer
L1 (Mono)
C10dB
fC f C 2
f
capacitance (C) will determine the frequency (fc) |
that the speaker will reproduce. Refer to the chart |
below to determine the components required. |
• Use the capacitors specified. |
itors rated at over ±25 V should be used for C1 |
and C2 in the diagram. Because of the voltage |
output of the amplifier, it is very important to use |
This will prevent a safety hazard. |
2.Twist the battery wire, ground wire and system remote control wire.
Twist
3.Attach lugs to wire ends. Lugs not supplied.
• Use pliers, etc., to crimp lugs to wires.
Lug
Ground wire
Lug
Battery wire
through the terminal cover. |
• Fix the speaker wires securely with the termi- |
nal screws. |
Terminal screw
Terminal cover
Speaker terminal
Speaker wire
Speaker (Mono)
Three-channel mode (stereo + mono)
The power amplifier is basically a two-
L2 | C2 | ||
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C1
(Left)
•Inductors (L1 and L2 in the diagrams) act as
•Remember when bridging an amplifier it will see only half of the original speaker impedance. Therefore, you must use speakers that have ratings of 4 ohms or higher. If you use speakers that have lower impedance ratings it may cause damage to the amplifier.
•When the inductors and capacitors are connected to the speaker wires, secure or solder them so they cannot be pulled loose. Tape or use heat shrink on the joints to prevent short circuits.
Component Guide
Speaker load Impedance | 2 Ω |
| 4 Ω |
| 8 Ω |
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fc (Hz) | L (mH) | C (∝F) | L (mH) | C (∝F) | L (mH) | C (∝F) |
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50 | 6.4 | 1,600 | 12.70 | 800.0 | 25.50 | 400.0 |
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80 | 4.0 | 1,000 | 8.00 | 500.0 | 16.00 | 250.0 |
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125 | 2.5 | 640 | 5.10 | 300.0 | 10.00 | 160.0 |
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200 | 1.6 | 400 | 3.20 | 200.0 | 6.40 | 100.0 |
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320 | 1.0 | 250 | 2.00 | 125.0 | 4.00 | 62.0 |
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500 | 0.64 | 160 | 1.30 | 80.0 | 2.60 | 40.0 |
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800 | 0.4 | 100 | 0.80 | 50.0 | 1.60 | 25.0 |
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1,250 | 0.25 | 64 | 0.50 | 30.0 | 1.00 | 16.0 |
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2,000 | 0.16 | 40 | 0.30 | 20.0 | 0.64 | 10.0 |
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3,200 | 0.1 | 25 | 0.20 | 12.5 | 0.40 | 6.2 |
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5,000 | 0.06 | 16 | 0.13 | 8.0 | 0.26 | 4.0 |
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8,000 | 0.04 | 10 | 0.08 | 5.0 | 0.16 | 2.5 |
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10,000 | 0.03 | 8 | 0.06 | 4.0 | 0.13 | 2.0 |
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