Parasound 5125 manual Connection Precautions, Audio In Jacks, Channel Connections

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Connection Precautions

Disconnect the AC cord before making or changing any input, trigger, or speaker wire connec- tions. Make sure there is no strain or tension on any wires that could cause them to pull loose.

Audio In Jacks

Connect the cables from your preamplifier or multi-room controller’s output jacks to the Model 5125’s channel 1-5 audio Input jacks. Gain is 29, fixed at THX Ultra2 Reference level, 1V input = 28.28V output.

Use channels 1 and 2 for your left front (L) and right front (R) channels. This will assure correct operation of the auto turn on audio sensing, should you choose to use it. Here is why:

•When you listen to a stereo source your surround controller will have audio signals only at its left and right channel output jacks. The other channels won’t receive an audio signal for the Auto Turn On circuit to sense.

•Even if you always listen in a surround mode, the center and surround channel sound levels aren’t high enough, on a consistent basis, for the auto turn on audio sensing.

5.1 Channel Connections

We recommend these connections:
	5125 Input jack	5125 Speaker Terminal
	Connects to Surround Controller’s Output:	Connects to:
Channel 1	Left or L channel	Left front speaker
Channel 2	Right or R channel	Right front speaker
Channel 3	Center, or Ctr channel	Center speaker
Channel 4	RS or Right surround channel	Right surround speaker
Channel 5	LS or Left Surround channel	Left surround speaker

7.1 Channel Speaker Connections

If you plan to use your 5125 in a 7.1 system you will need to use a two channel power ampli- fier for the two additional speakers. You have two hookup options which depend on the quality of the separate two channel power amplifier. We recommend using the better amplifier for the left and right front speakers because their sonic contribution to your listening is more significant than the surround back channel speakers.