A discussion of some of the key features is included below. For all the specs and other gory
details on the individual amplifiers, use the comparison chart (169kb PDF file) or
go to each amp page.
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High Level Inputs with Smart Engage:
"Smart-Engage" Auto-turn-on: is an auto-turn circuit included within the amplifier. A remote turn-on
wire is not necessary when connecting the amplifiers high-level input to a high-powered
source unit (Car Stereo). The amplifier will automatically turn on when music is received
through this type of connection.
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Low Level Inputs:
A source unit with a minimum output level of 200mV is required for proper operation. However, this
input will accept levels up to 8Vrms.
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Input Select Switch:
This switch is used to match the amplifier's input to the source unit's output so all
four or five channels of the amplifier are driven. Note: The five channel amplifer will
have 2, 4, and 5 channel input selections.
If your source unit has 2 outputs (a left and right) connect them to the amplifier's front
channel inputs, and place the input select switch in the 2CH position. If your source unit
has 4 outputs, (left front, left rear, and right front, right rear) connect them to the
amplifier inputs and place the input select switch in the 4CH postion. If your source
unit has 5 or 6 outputs, (left front, left rear, right front, right rear, and Sub) connect
them to the amplifier inputs and place the input select switch in the 5CH postion. In the
4CH or 5CH position, the fader on your source unit will operate.
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Selectable High or Low Pass
Crossover @ 85Hz/18dB
The Crossover determines what type of frequency (sound) comes out of the amp. If you select high
pass, your amplifier should be connected to mid-bass, mid-range and tweeters only. If you select
low pass, your amplifer should be connected to woofers only.
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High Pass Crossover @ 85Hz/18dB
The Crossover determines what type of frequency (sound) comes out of the amp. In the high pass
setting, your amplifier should be connected to mid-bass, mid-range and tweeters only.
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Low Pass Crossover @ 85Hz/18dB
The Crossover determines what type of frequency (sound) comes out of the amp. In the low pass
setting, your amplifer should be connected to woofers only.
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Selectable High or Low Pass Variable
Crossover @ 40Hz-200Hz
The Crossover determines what type of frequency (sound) comes out of the amp. If you select
high pass, your amplifier should be connected to low/mid-bass, mid-range and tweeters only.
If you select low pass, your amplifer should be connected to low mid-bass and woofers only.
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Low Pass Variable Crossover @ 40Hz-200Hz
The Crossover determines what type of frequency (sound) comes out of the amp. In the low pass setting,
your amplifer should be connected to low mid-bass and woofers only.
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Low Pass Only RCA Outputs
This RCA output will send low frequency audio signals to additional amplifiers. Both the left and
right output is summed, providing a mono signal output.
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Variable Hi, Low or Full Range RCA Outputs
This RCA output can be set to send a full range, low pass or high pass signal to additional amplifiers. When
in high pass or low pass mode, the RCA outputs track the setting of the internal crossover. When the RCA
output is in low pass mode, both the left and right output signals are summed, providing a mono signal output.
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Compression Circuit:
This circuit prevents the amplifier from going into clipping, even at high SPL levels. The compression
circuit allows the listener to play the amplifier at high volume levels, yet protects the
speakers against the potential damage that can occur during dynamic musical passages.
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Thunder EQ:
The Thunder EQ is an equalization circuit that is used to enhance the low frequency
response of the vehicle’s interior. With up to 18 dB of boost and centered at 40Hz,
the Bass EQ can be adjusted to meet your own personal taste.
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EBC Port:
This Connection allows the use of the optional "Electronic Bass Control" (EBC). If the EBC
is installed, the bass level can be adjusted from the driver's seat. With EBC 2, one EBC
can control the bass level on multiple amplifiers installed in a daisy chain connection.
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Individual Gain Controls:
These controls are used to match the input sensitivity of the amplifier to the particular
source unit that you are using. The Gain Controls can also be used to center the sound
stage when the audio system is left or right bias.
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