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4. GAIN Control
This control is used to match the input sensitivity of the amplifier to the particular source unit that you are using
up to 6 volts. Proper setting on page 13.
5. SUB SONIC Control
This control is continuously adjustable from 15Hz through 50Hz at 12dB per octave to provide an extra level of
speaker protection from bass robbing power at unheard frequencies.
6. LPF (Low Pass Filter) Control
This filter allows low pass of frequency and is adjustable from 50Hz through 150Hz to eliminate unwanted
high frequencies.
7. BASS EQ Control
This equalization circuit is used to enhance the low frequency response of the vehicle’s interior. With up to
18dB of boost centered at 45Hz, the BASS BOOST can be adjusted to meet your own personal taste.
8. PHASE Switch
This switchable control can be used to correct any “phase” or “time delay” effect in the system by bringing the
low frequency from the rear of the vehicle to the front.
9. BRIDGED Switch
Two like amplifiers can be connected together and bridged into a single 2-ohm (min) load. The level and fre-
quency controls on the SLAVE amp will be disabled. Only the amplifier you select as the MASTER will control
these functions. The Dual Link Power Doubling Circuit increases the output power as follows:
ASA3-600.1D x 2 = 1,200 watts RMS (2 ohms min)
ASA3-1000.1D x 2 = 2,000 watts RMS (2 ohms min)
ASA3-1500.1D x 2 = 3,000 watts RMS (2 ohms min)
10. BRIDGED CONNECTION Port (RJ45 Jack)
For linking two of the same model PowerBass Autosound Class D amps together. Connect the INPUT of the
MASTER to a suitable source via a standard telephone wire with RJ45 modular connectors to the jack on the
SLAVE amplifier. Then select the MASTER/SLAVE switch properly (see Speaker Output Configuration diagram
on pages 19 and 20).
11. REMOTE LEVEL (RJ45 Jack)
This is the connector port for the Remote Level Control. Now the amplifiers secondary gain circuit can be
adjusted from the driver’s seat.
