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10. Input Sensitivity Controls – The input level controls are preset to match the output of most source units. They can
be adjusted to match output levels from a variety of source units.
11. Internal Crossovers – These built-in crossover cards are configurable for a multitude of operating frequencies. The
orientation of the card in its socket determines its function of high-pass, low-pass or full range operation.
12. E-Z Bridge Switch / 0°-180° Phase Switch – This dual purpose switch enables you to E-Z bridge the amplifier or
invert the signal phase of the right channel.
13. Phase Switch – This switch enables you to easily invert the phase of the left channel without having to disconnect
the speaker wires.
14. Crossover Switching – These internal switches allow the crossover to be distributed to the amplifier and Pass-Thru
in many different configurations.
15. Audiophile Bypass – One of the crossover switching configurations allows the internal crossover circuit to be
bypassed, maintaining Audiophile sound quality due to a shorter signal path.
16. LED Power Indicator – The LED gives a visual indication of the status of the amplifier, lighting when the unit is turned
on.
– 6 –
POWER
50.
2
Low-Pass
Full Range
High-Pass
HP
LP
HP
LP
FULL
XCard Options
XCard 1
XCard 2
Amplifier
Pass Thru
Amplifier
Amplifier
XCard 1 XCard 2
ROCKFORD CORPORATION
MADE IN THE USA
®
25 Watts X 2 into 4 Ohms
with less than 0.05% THD + N from 20-20kHz
50 Watts X 2 into 2 Ohms
with less than 0.10% THD + N from 20-20kHz
®
AMPLIFIER
XCard 1 XCard 2
XCard 1 XCard 2
Audiophile Bypass
Not Used Not Used
Audiophile Bypass
Not Used
Amp Only
Pass Thru
XCard 1
XCard 2
11
14
&
15