6
1. Frequency Filter: This potentiometer is used to adjust the
crossover frequency of your amplier. When the Crossover
lter is switched to Low Pass the crossover frequency
adjustment is 30Hz – 500Hz. When the amplier lter is
switched to High Pass, the crossover frequency adjustment is
50Hz – 500Hz.
2. Crossover Filter Selector: Depending on how you will use
your AP Amplier, you will select the appropriate setting on the
Crossover switch. Set the Crossover Switch to LP mode if you
are using Subwoofers or MidBass drivers. Set the switch to HP
if you want the amplier’s internal crossover to serve as a high
pass lter. When the switch is set to the Full position will allow
the amplier to send its full bandwidth to your speakers. Avoid
changing the crossover switches with the audio system
playing at high volumes as this may damage your speakers.
3. Boost Eq: Your AP Series ampliers incorporate a two stage
Boost Eq. circuit that is not only active in Low Pass Mode but
is also active in Full Range Mode. The Boost Eq. can increase
output 0-18dB centered at 45Hz.
4. Input Gain: Use these Input Gain Potentiometers to match
the output voltage of your headunit / source unit to the input
circuit of your amplier. These Input Gains are not a volume
knob. A simple method of setting your Input Gains is to turn your
headunit / source unit up to approximately ¾ volume. Then
slowly adjust your Input Gains on your ampliers clockwise until
you can hear distortion from your speakers or subwoofers. Then
turn the gains down (counterclockwise) till the distortion is no
longer heard.
5. Low Level RCA Inputs: These are your dierential balanced
inputs that are used to connect audio signal from your
headunit / source unit to your amplier. (Note only one type of
input is needed to send signal to your amplier, therefore
you only need to use either your Low Level or High-Level
input. Aunex does not recommend connecting both Inputs
simultaneously.
Side Panel Layout Continued
