Lanzar WDN2000.1D - Manual (Page 6)

WDN2000.1D / WDN800.2D AMPLIFIER APPLICATIONS
General:
Level (GAIN) Control Setup:
At this point you are ready to get more specific on the settings for your amplifier.
If you are not sure what the Radio output sensitivity is, follow these general guide lines:
Turn the level control up slowly, till you hear distortion, then back off a few degrees on the control, If at any point your amplifier goes into
protection. you will need to turn the Level to the left a bit and then try again. If you reach a point where the output does not increase, stop
turning the Level control to the right as the amplifier/subwoofer combo has reached its max output on this application.
Subsonic:
This setting acts as a low frequency cut off for your system bass reproduction. The point that you set it at cuts off any frequencies from
reproduction beyond this point. The 12 o’clock position is a great starting point. EXAMPLE: If you adjust the Subsonic to 25Hz, the amplifier
will not play frequencies below 25Hz but will play frequencies from 25Hz to the chosen Low Pass frequency.
High Pass:
When in Hi Pass operation this setting acts as a low frequency cut off your system reproduction. The point that you set it at cuts off any
frequencies from reproduction beyond this point.The 12 o’clock position is a great starting point. EXAMPLE: If you adjust the High Pass
to 100Hz ,the amplifier will not play frequencies below 100Hz but will play frequencies from 100Hz to the chosen Low Pass frequency.
Ensure that the level is turned completely to the left prior to turning the system on. Next you should insert a CD or cassette that you are
familiar with to use as a reference, and turn the head unit volume control to about 80% of its full setting. The system sound level will of
course be very low, and the following procedures will help you to match the amplifier input sensitivities properly to the head unit output
signal level. It is important to match the amplifier LEVEL input sensitivity to the Radio/CD output sensitivity. This can be located in the
Radio/CD manual. If the Radio/CD output sensitivity is 2 volts, then adjust the amplifier LEVEL input to 2 volts.
Phase:
The Phase switch allows you to change the relative time that the waveform meets your ear. With standard subwoofer installations where
the subwoofer is behind you, the phase should generally be at 0. When subwoofers or woofers are in the kick panels or door panels, the
Phase adjustment is useful in delaying the timing of the wave meeting your ear by adjusting the potentiometer to 180 degrees.
Low Pass:
The Low pass control acts as a ceiling and doesn’t allow frequencies to the right of the desired setting to be reproduced. The 12 o’clock
position is a great starting point. EXAMPLE: If you adjust the Low Pass to 80Hz, the amplifier will not play frequencies above 80Hz but will
play frequencies from 80Hz to the chosen Subsonic frequency.
Bass EQ:
This setting is a fixed bass boost at 45Hz that is variable from 0-12dB. This feature provides impact to your bass, but if not adjusted
correctly, it can be over used and cause damage to your subwoofers and amplifiers. It is best to slowly turn this setting clockwise until the
desired punch is felt, it is not recommended to exceed the 12 o’clock position unless listening at a low volume or a low recording quality as
this can result in high distortion and possibly clipping.
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