Velodyne Acoustics SPL-1500R Rear Panel Connections Detailed Explanation, 7MIC INPUT, 8IR INPUT

(6)SPEAKER LEVEL INPUT Terminals

Connect these input terminals to the speaker output terminals of your amplifier or receiver. If you use this method of connection, when you go to the receiver speaker set up menu, make sure you select the large speaker option.

(7)MIC INPUT

Connect the supplied microphone for the Auto EQ feature to this mini-jack.

(8)IR INPUT

Connect an IR repeater to this jack for use with universal remote systems.

(9)12v TRIGGER

When this mini jack is connected, the unit remains in power- off mode until 12 volts is supplied across the two leads. Polarity is irrelevant.

REAR PANEL CONNECTIONS -

DETAILED EXPLANATION

Your new subwoofer is equipped with both speaker-level and line-level inputs. Use the RCA/Phono type “INPUT” jacks when connecting your subwoofer to a pre-amp, signal processor, or line-level crossover. The “SPEAKER LEVEL INPUT” jacks connect directly to the speaker outputs of an integrated amplifier or receiver. Your amplifier section will notice no additional loading effects when you use these inputs because of their high impedance.

NOTE: Do not use both the RCA/Phono “INPUT” connections and “SPEAKER LEVEL INPUT” connections simultaneously.

Low-Pass Crossover

Both sets of inputs sum the left and right channels together and the resulting signal is passed through an adjustable low-pass crossover before being amplified. The crossover control allows you to adjust the upper limit of the subwoofer’s frequency response from 40 to 120 Hz. The subwoofer’s response will begin rolling off above the frequency you set this control to.

You should set the crossover frequency to obtain a smooth and

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