SET UP ADJUSTMENTS
Your BTA-8 uses several controls to provide sonic integration with virtually any vehicles unique
acoustic properties. Please read the following section carefully to familiarize yourself with the
function of each control.
The following adjustment sequence is recommended to properly tune your BTA-8. By first adjusting
the GAIN, then the LPF, followed by the BASS EQ (in this order) will give you the best results.
Input GAIN Control
This control allows you to match the input level of the amplifier to the output level of your head unit
(Fig 6). Matching the input can be accomplished in four simple steps:
1. Make sure the remote gain control is not plugged in until after the master gain control is set.
2. Set the GAIN control on the amplifier to MIN (completely counter clock wise).
3. Turn on the head unit and adjust the volume to 2/3 maximum, and set the BASS and TREBLE
on the radio (source) to zero or flat.
4. Turn the GAIN control clockwise until the sound just begins to distort, then back off slightly to cut
distortion and operate at optimum gain.
Remember, the GAIN control is not a volume control. Ignoring these four steps above may leave you
with a damaged woofer and/or damaged amplifier.
LPF (Low Pass Filter) Crossover Adjustment
Since musical tastes vary, adjust the crossover by ear while listening to the music of your choice.
Turn the crossover LPF adjustment all the way down to 40Hz. Then slowly turn the knob up until
desired sound is achieved. Normal listening level should be right around 100Hz to 150Hz. Use
Fig.6 GAIN Control
GAIN
MIN
MAX
Fig.7 Low Pass Control (LPF)
250Hz
40Hz
LPF
