6-Channel Amplifiers
NA540.6
8
6 Channel Full Range Stereo
1. Interconnect cable checklist: 3. Crossover frequency control checklist:
Connect the 6 Inputs of the amplifier to a Radio/CD with quality RCA cables. N/A for full range operation.
2. Filter Switch: 4. Line Level:
- 1/2CH: FLAT Refer to section “Setting up systems after installation for best performance.”
- 3/4CH: FLAT
-5/6CH: FLAT
5 Channel Operation 2. Filter Switch:
This illustration shows how to use your 6 channel amplifier as a 5 channel unit by taking - 1/2CH: FLAT
advantage of the mono bridging capability on all NAUTIC amplifiers. - 3/4CH: FLAT
- 5/6CH: LOW
1. Interconnect Cable Checklist:
3. Crossover frequency control checklist:
- 1/2CH & 3/4CH: Connect the Inputs of channel pair ½ to a suitable stereo source
N/A for full range operation. 5/6CH set to 80Hz.
with quality RCA cables. Repeat these steps for 3/4CH. 4. Line Level:
- 5/6CH: Connect a mono line Input via Y-adapter from a mono source or single Refer to the section “Setting up systems after installation for best performance.”
Left or Right RCA from a stereo source. This has been detailed on previous pages
5.Speaker Connections:
Connect the subwoofer - to Ch6- and the subwoofer + to Ch5+. Connect the remaining
for reference.
speakers in standard stereo wiring to CH1/2 & CH3/4.
IMPORTANT: Do not connect Left and Right stereo signals together to achieve a mono
signal as this will damage the output stage of the source and possibly the input stage of
IMPORTANT: Minimum final loudspeaker impedance presented to the amplifier is
the amplifier therefore voiding your warranty.
4-Ohms in mono operation and 2-Ohms in stereo operation.
POWER INPUT
POWER INPUT
GND REM BATT+12V
GND REM BATT+12V
6CH 5CH
6CH 5CH
4CH 3CH 2CH 1CH
4CH 3CH 2CH 1CH
+ - + - + - + - + - + -
+ - + - + - + - + - + -
BRIDGED
BRIDGED
BRIDGED
BRIDGED
BRIDGED
BRIDGED
LINE OUTPUT
DIAGNOSTICS
MODE
POWER
PROTECT
CH-2
CH-1
CH-6 CH-4
CH-5 CH-3
CH-2
CH-1
2-CH6-CH
4-CH
LINE INPUT
LEVEL
FILTER
FREQUENCY
BASS EQ
6V
.2V
HIGHLOW
FLAT
40Hz
250Hz
0dB
9dB
CHANNELS 1 & 2
CHANNELS 3 & 4
CHANNELS 5 & 6
LEVEL
FILTER
FREQUENCY
BASS EQ
6V
.2V
HIGHLOW
FLAT
40Hz
250Hz
0dB
9dB
6V
.2V
HIGHLOW
FLAT
40Hz
250Hz
0dB
9dB
LINE OUTPUT
LINE OUTPUT
DIAGNOSTICS
DIAGNOSTICS
MODE
MODE
POWER
POWER
PROTECT
PROTECT
CH-2
CH-2
CH-1
CH-1
CH-6
CH-6
CH-4
CH-4
CH-5
CH-5
CH-3
CH-3
CH-2
CH-2
CH-1
CH-1
2-CH
2-CH
6-CH
6-CH
4-CH
4-CH
LINE INPUT
LINE INPUT
LEVEL
LEVEL
FILTER
FILTER
FREQUENCY
FREQUENCY
BASS EQ
BASS EQ
6V
6V
.2V
.2V
HIGH
HIGH
LOW
LOW
FLAT
FLAT
40Hz
40Hz
250Hz
250Hz
0dB
0dB
9dB
9dB
CHANNELS 1 & 2
CHANNELS 1 & 2
CHANNELS 3 & 4
CHANNELS 3 & 4
CHANNELS 5 & 6
CHANNELS 5 & 6
LEVEL
LEVEL
FILTER
FILTER
FREQUENCY
FREQUENCY
BASS EQ
BASS EQ
6V
6V
.2V
.2V
HIGH
HIGH
LOW
LOW
FLAT
FLAT
40Hz
40Hz
250Hz
250Hz
0dB
0dB
9dB
9dB
6V
6V
.2V
.2V
HIGH
HIGH
LOW
LOW
FLAT
FLAT
40Hz
40Hz
250Hz
250Hz
0dB
0dB
9dB
9dB
FEATURES:
- 3 Sets of RCA inputs
- LEVEL: Variable sensitivity from 0.2V to 6V
- BASS BOOST: Adjustable 45Hz bass boost from 0dB to 9dB
- X-OVER: Selects internal crossover functions
- FLAT: Bypasses all crossovers for full frequency operation
- LOW: Selects the built in LOW PASS filter
- HIGH: Selects the built in HI PASS filter
- POWER LED: Indicates the powered up and turned on condition
- PROTECTION LED: Indicates a high voltage, low voltage, short circuit,
hard clip, over heating or DC fault condition.
- MODE: “2” indicates one set of RCA’s are being used. This will also pass signal to channels 3/4 and 5/6 through
1/2 inputs. “4” indicates connecting 2 sets of RCA’s to 1/2 and 3/4 inputs. “6” indicates connecting 3 sets of
RCA’s to channels 1/2, 3/4 and 5/6.
(17 pages)
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