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Starfire Series Manual
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To alleviate this condition, we recommend the following steps:
1) If using line level jacks, BOTH THE LEFT AND RIGHT INPUT SHOULD ALWAYS BE USED – never use just the left
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r just the right input. If the subwoofer’s input comes from the LFE channel of your receiver, use a “Y” splitter to supply the
single input to both connectors for the Left and Right subwoofer inputs. If using line level connections from a preamp or signal
processor, use both Left and Right inputs from your preprocessor or preamp and connect them to the Left and Right inputs on
your subwoofer.
2) If using a receiver with LFE out, be sure the LFE channel is sending adequate signal to the subwoofer. We recommend setting
the subwoofer’s level to the 9 o’clock position (the 1/4 volume setting) and then adjust the LFE channel on your receiver or
processor to achieve the desired bass output. See your receiver or processor’s owner’s manual for more information.
The SPEAKER LEVEL jacks connect directly to the speaker outputs of any amplifier, integrated amplifier, or receiver. Your amplifier section
will notice no additional loading effects when you use these inputs due to their very high impedance. If using the
SPEAKER LEVEL inputs,
you DO want to connect both channels, since different bass information might be present in each channel going to your main speakers.
Important!!!
Do not use both LINE LEVEL and SPEAKER LEVEL connections simultaneously!
Caution!!!
To avoid damage to your main amplifier, be sure to maintain correct polarity when making all connections - red (positive) to red, and black
(negative) to black. Be sure all connections are tight, and that there are no loose strands or frayed wires.
Volume Control
This control allows you to balance the output from the subwoofer to the main speakers in your system. This control should be set to achieve
similar output levels from both the main speakers and subwoofer when listening to music. A good starting point for the volume control is
two or three graduations from minimum.
Warning:
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anufacturers preset their receivers with the Sub-Out channel signal at a minimum level. It is very important to verify that your receiver
Sub-Out channel is set to the same output level as your front right and left channels. Refer to your receiver manual for the individual channel level
adjustment procedure. If your receiver Sub-Out channel is set too low, the subwoofer may appear to have a weak output, it may sound noisy or
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istorted, and the Auto On/Off feature may not operate properly.
Low-pass Crossover - 50 to 200 Hz
As noted above, all inputs sum the left and right channels together, with the resulting signal passing through an adjustable low-pass crossover
before being amplified. The crossover control allows you to adjust the upper limit of the subwoofer’s frequency response from 50 to 200 Hz.
The subwoofer’s response will begin rolling off above the frequency you set this control to. You should set the crossover frequency to obtain a
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th and seamless transition from the subwoofer to the main speakers in your system. If your main speakers are smaller units with limited
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w frequency output, you may wish to choose a higher frequency (such as 100 - 120 Hz) than you would with larger speakers which have
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reater low frequency output. With larger speakers, you might start with this control set lower, such as 80 Hz.