of the LOW PASS FREQ dial and pass all frequencies below the setting of the LOW PASS FREQ
dial. The LOW PASS switch and dial are used when the MA202R is configured as a subwoofer
amplifier. Subwoofers typically reproduce frequencies between 40Hz and 180Hz. It is not
desirable for subwoofers to reproduce frequencies above 180Hz because subwoofers are specially
design to reproduce bass frequencies.
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LOW PASS FREQ DIAL:
The LOW PASS FREQ dial will only be activated if the FLAT / LOW PASS switch is in the UP/ON
position. Use the dial and switch to power subwoofer speakers. The precise crossover frequency
for your subwoofer can be achieved by adjusting the LOW PASS FREQ dial. It is common practice
to keep your subwoofer crossover frequency below the usable frequency range of your main
left/right speakers. For Example: If the rated frequency response of your main left/right speakers
is 100Hz -20kHz set the LOW PASS FREQ dial to 100Hz. With this configuration your main left/right
speakers will reproduce frequencies from 100Hz-20kHz and your subwoofer will reproduce the
frequencies from 100Hz to 40Hz. This setup will provide a full range listening experience. Each
speaker performs differently, use this as a guide and experiment with theLOW PASSFREQ dial to
achieve the best results with your system.
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MONO/STEREO SWITCH:
Keep this switch in the STEREO position for normal stereo operation.The minimum speaker
Impedance that can be used in stereo mode is 4ohms.The MONO switch can be used to combine
the left and right amplifiers to one single higher power amplifier.This is called BRIDGE MONO
MODE. Use the BRIDGE MONO MODE for powering a single speaker or speaker driver or subwoofer.
The minimum speaker impedance in BRIDGE MONO MODE is 8ohms.
Never connect speakers or multiple speakers to the MA202R with impedances lower than
4ohms in stereo mode and 8 ohms in BRIDGE MONO MODE. Low impedances can damage the
MA202R and potentially damage your speakers. If you are unsure how to connect your MA202R
contact a Carver technician at www.carver-usa.com before making your connections.
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ON/AUTO SWITCH:
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The ON/AUTO switch provides two power-on modes. With this switch in the ON position the
MA202R will be fully powered-on constantly. Use this mode when you want to disengage the
power saving feature or when the MA202R is used continuously for long periods of time. With
this switch in the AUTO position the MA202R will operate normally and will enter the power
saving standby mode automatically if the input signal is not present for more than 4 minutes.
This is the normal operating mode for the MA202R. The MA202R will save energy when not in
use and will power ON automatically when an audio source is present at the AUX1 input or
Bluetooth input. In this mode the MA202R is ready when you are and conserving energy when
notin use.
AUX1 INPUT (RCA):
Connect your wired music source here using RCA jacks. The AUX 1INPUT will accept line level
sources from CD/Blue Ray players, computers, MP3 players radio tuners, pre-amplifiers, mixers
and practically any line level audio source.
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