• If you have connected the amplifier to a pair of 6" or smaller full-range speakers, set the Crossover Filter switch in the “HP” (high-pass) position.
This will limit the amount of low-frequency energy sent to the speakers, significantly reducing distortion and preventing the speakers from damage.
• If you have connected the amplifier to a pair of large full-range speakers (6" x 9" or larger) that can handle significant bassand you are not using a
subwoofer in the system, set the Crossover Filter switch to the "FLAT' (full-range) position.
• If you have connected the amplifier to a pair of woofers or subwoofers, set the Crossover Filter switch in the “LP” (low-pass) position. This will limit
the amount of high-frequency energy sent to the woofers/subwoofers, improving the clarity of vocals and other midrange sounds.
GX-A602: BRIDGED OPERATION
Crossover Filter switch: When operating the amplifier in bridged mode into a subwoofer, set the Crossover Filter switch in the “LP” (low-pass)
position. This will limit the amount of high-frequency energy sent to the subwoofer.
GX-A3001
NOTE: The GX-A3001's internal crossover is permanently set for low-pass operation.
Crossover control: The Crossover control limits the amount of high-frequency energy sent to the woofers or subwoofer.
The Crossover control setting you use for subwoofers will depend on the type and location of your system’s subwoofer.
Start by setting the Crossover control to a frequency somewhat lower than the high-pass crossover setting you used for the
system's other speakers. After listening to music on the system for a time, fine-tune the Crossover control setting to achieve
a smooth transition from the subwoofer to the rest of the system’s speakers while avoiding a “hole,” where the sounds that
occur between the subwoofer and other speakers seem to drop out. The illustration to the right shows the recommended
Crossover control frequency range.
SET THE INPUT LEVEL
1. Turn all the Level controls on all amplifiers fully counter-clockwise.
2. Play some dynamic music through your source unit and turn its volume up to 3/4 volume.
3. Slowly turn the Level control on the front-channel amplifier clockwise until the music begins to sound distorted.
4. Turn the Level control counter-clockwise slightly until the music no longer sounds distorted.
5. If you're using more than one amplifier or are using the GX-A604, repeat Steps 3 – 4 for all remaining amplifier Level controls.
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