www.celsusice.co.uk
www.celsusice.co.uk
MRA-470D
IPX7 4 Channel Marine-Grade Micro Digital Amplifier
The MRA-470D is a state-of-the-art amplifier designed to deliver
great performance from a small 203 x 89mm
/ 8” x 3.5” footprint.
This 4 channel full-range class D amplifier benefits from an IPX7
waterproof rating ensuring that it is suited to the harsh marine
environment, optimised for a boat, jet-ski or off-vehicle application.
MRA-470D boasts fully variable high pass and low pass crossovers
enabling it to drive loudspeakers in a variety of configurations. A
versatile and powerful amplifier to sit at the heart of your high-end
audio system.
In the box
MRA-470D Amplifier
Waterproof DIN > RCA adaptor cable
Power cable & 40A fuse
Mounting Screws
Read this document in full before proceeding with installation.
Installation should only be performed by an experienced and
qualified technician.
Owner’s Manual & Set-up Guidance
Specification
Power output at 4Ω - 70W x 4
Power
output at 2Ω - 90W x 4
Power output at 4Ω Bridged - 200W x 2
Size L x W x H: 20.3 x 8.9 x 3.8cm (8 x 3.5 x
1.5”)
Colour
Function
Connection
Red
+ 12v
Input
Black
Ground
Input
Blue
Remote:
Do Not Connect
Speaker Outputs
Green/Black
Rear Left -
Output
Green
Rear Left +
Output
Purple
Rear Right +
Output
Purple/Black
Rear Right -
Output
White/Black
Front Left -
Output
White
Front Left +
Output
Grey
Front Right +
Output
Grey/ Black
Front Right -
Output
RCA Adaptor
Phono Cable
Signal
Input
Yellow
+12v
(
Max Current draw 300mA)
Output
Blue
Remote
Input
Black
Ground
Output
*** Wiring configuration diagram overleaf ***