4. LINE IN (RCA) Jacks
These RCA style input jacks are for use with source units that have RCA line level outputs. A source unit with
a minimum output of 500mV is required for proper operation. However, this input will accept levels up to
4Vrms.
5. LEVEL Control
This control is used to match the input sensitivity of the amplifier to the particular source unit that you are
using up to 4 volts.
6. 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.
7. LPF (Low Pass Filter) Control
This filter allows low pass of frequency and is adjustable from 50Hz through 150Hz to eliminate unwanted
high frequencies.
8. BASS BOOST 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.
9. 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.
10. 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:
ASA-1000.1Dx x 2 = 2,000 watts RMS (2 ohms min)
ASA-1500.1Dx x 2 = 3,000 watts RMS (2 ohms min)
11. BRIDGED CONNECTION (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).
