POLY-PLANAR • PO Box 409 • Hanover, MD 21076
Tel: (410) 761-4000 • Fax: (410) 761-6274 • www.polyplanar.com
POLY-PLANAR • PO Box 409 • Hanover, MD 21076
Tel: (410) 761-4000 • Fax: (410) 761-6274 • www.polyplanar.com
ME-400 Installation Instructions
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This amplifier will accept low level inputs. Low level is the same as line level. The low
level signal is carried through RCA cables. It is preferred to use low level inputs to the
amplifier if the head unit is equipped with the low level outputs. If not, you can use a
“high to low converter” available through your local car audio shop.
Connect the low level/line level RCA cables from the head unit, or signal processor, to
the line level input on the amplifier.
Input Connections
1. Line-in RCA Jacks
- These inputs are for line-level signals from the source. Always
use high quality cables and DO NOT run them along side the power or speaker
wires.
2. Input Level Controls
- Two controls for adjusting the volume of each pair of
channels. Channels 1 & 2 adjust together; channels 3 & 4 adjust together.
3. Crossover Mode Switch
- High Pass (HP) lets frequencies above the set value to
pass, Low Pass (LP) only passes frequencies below the set value and Full Pass (Full)
passes all frequencies.
4. Crossover Frequency
- These controls set the crossover frequency of each pair of
channels between 40 and 250 Hz.
5. EQ-Bass
- This is a 45Hz bass boost adjustable from 0 to +18db.
6. Power and Protection LEDs
- Green LED indicates power on and the red LED
indicates that the amplifier has gone into a protection mode.
ME-400 Controls
