Rockford Fosgate PUNCH 4020 DSM - Manual (Page 18)

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4-CHANNEL – STEREO FRONT
MONO REAR
4
Ω
Minimum
Low Frequency
+ –
2
Ω
Minimum
High Frequency
+ –
Front Gain Front Rear Rear Gain
(Bridged Mono)
+ L – + R –
(Bridged Mono)
Front Speakers Rear Speakers
+ –
– L + – R +
R
L
R
L
Front Rear
*Note: XCard can be inserted in HP,
LP, or Full Range.
XCard 1 XCard 2
HP LP
Rear XCard* Front XCard*
• Signal input switch to 4 channel input.
• Gain for Front and Rear operate independently.
• Front is operating in stereo.
• Rear is operating in stereo.
• Fader on source unit controls level of subwoofer.
• Experiment with subwoofer polarity to determine
which sounds best in your system.