Owner`s manual
Roswell Marine Audio Amplier Owner’s Manual
REV. 02-Feb-14
Pg. 5/19
Bass Boost
All of the RMA ampliers have an adjustable bass boost. Use Bass Boost carefully - the response
on the power output is tremendous!
• 600.1 - The RMA Mono Amplier includes a bass boost of 0-12dB at 45Hz. The 600.1 includes
a subsonic lter that sets the lower cutoff frequency, variable from 15Hz to 55Hz.
• 500.2 - The RMA 2-channel amplier includes a bass boost of 0-12dB at 45Hz.
• 600.4 - The RMA 4-channel amplier includes a bass boost of 0-12dB at 45Hz. The bass
boost only affects channels 3 & 4.
• 800.5 - The RMA 5-channel amplier includes a bass boost of 0-12dB at 45Hz. The 800.5
includes a subsonic lter that sets the lower cutoff frequency, variable from 15Hz to 55Hz.
Please note the bass boost and subsonic settings will only function on CH5.
Remote Gain Control
• The RMA 600.1, 500.2, and 800.5 Ampliers include a remote gain control module that can
be plugged into the amplier to allow easy reduction of the gain setting without accessing the
amplier.
Remote Gain Control Module
RCA Line Out - The RMA 600.1, 500.2, and 500.4 ampliers all have line out connections that
allow you to connect multiple ampliers together. The RCA pre-outs supply a full range mono signal
as they are designed to feed additional subwoofer ampliers.
RCA cable
Optional full range line out
connection to additional
amplifiers in the system
Speaker Outputs
All RMA ampliers are equipped with a block style terminal for speaker connection. Make these
connections carefully and neatly. Strip your wire back ⅝” and twist the exposed leads. Insert
them into the appropriate spot on the block terminal. Make sure that there are no loose or frayed
strands of wire sticking out. If a wire comes in contact with another wire, the amplier will go into
protection mode. Fasten the wire in place with the small Allen hex key (included). Verify your wires
are secured in place by gently pulling on them. Note: Know your impedance before you make any
connections.