Hifonics MERCURY IV Owner's Manual download pdf (Page 25)

RL RR

Connect the stereo RCA output

(FL/FR & RL/RR) of the headunit with LINE IN

CH1/2 and CH3/4 of the amplifier

Loudspeaker

rear / left

2 – 8 Ohms

Loudspeaker

rear / right

2 – 8 Ohms

FR FL

Loudspeaker

front / left

2 – 8 Ohms

Loudspeaker

front / right

2 – 8 Ohms

Switch setting CH1/2: HPF or FULL

Switch setting CH3/4: HPF or FULL

Switch setting INPUT: 4 CH

INTERCONNECTION

• Connect the RCA lineouts of the headunit with the RCA jacks LINE IN of the amplifier with appropriate high-value RCA cables.

• Connect the front- and rear speakers with the speaker outputs (SPEAKER OUTPUTS + 1CH -, + 2CH - and + 3CH -, + 4CH -).

• Ensure by any means, that the total impedance load of all speakers is not lower than 2 ohms. Too low impedance cause high temperature

and will shut down the amplifier operation.

• Always ensure the correct polarity of the speakers. The interchange of plus and minus cause total loss of bass playback and could

damage the speakers.

INPUT SWITCH

• Select the 4CH position on the INPUT MODE switch. If there is only one RCA stereo audio cable from the headunit available, connect

the CH1/2 RCA line inputs and select the 2CH position.

CROSSOVER SETTINGS CH1/2 & CH3/4

• By using bigger speakers (more than 20cm) you can set the X-OVER MODE switch to the FULL position (Full Range Signal).

• By using smaller speakers (8.7cm - 16cm) you must set the X-OVER MODE switch to the HPF Position (Highpass Mode) to avoid any

damage by lower frequencies on the speakers. The cut-off frequency is adjustable with the HPF controller and should be set between

60Hz to 150Hz, depending on the size of the speakers.

• The LPF Controller is not in use in this interconnecting example.

LEVEL CONTROLLER CH1/2 & CH3/4

• Turn the LEVEL controller of the amplifier to the MIN. position.

• Turn the volume controller of the headunit to 80 - 90% of its full setting.

• Turn the LEVEL controller clockwise until you hear some distortion.

• Then turn back the LEVEL controller slightly until you hear a cleaner sound.

BOOST CONTROLLER CH3/4

• The BOOST controller must be turned to 0 dB position in this interconnecting example .

REMOTE BASS LEVEL CONTROLLER

• The enclosed remote BASS LEVEL Controller is not in use in this interconnecting example.

MERCURY IV|ENG

INTERCONNECTION EXAMPLE 4-Channel Mode: 2 x Stereo System (Front & rear)

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 31 32

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Hifonics MERCURY IV Owner's Manual Page 25

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