Surround Modes, Test Tone | JBL ECS300 instruction

Surround Modes

Dolby Pro Logic

Use this mode for films recorded using Dolby Pro Logic Surround. The surround channels have a 20-ms delay.

Phantom

This mode creates surround sound from stereo recordings. The center channel is not used and the surround chan- nels have a 20-ms delay.

Simulated

This mode provides surround sound with no delay for the surround speakers. This is not a Dolby mode.

3-Stereo Mode

Use this mode to play back Pro Logic-encoded films when you do not want the surround channels to play.

Stereo

This mode plays a recording in traditional two-channel stereo.

Test Tone

The test tone is used to cali- brate the volume settings of the speakers. A static noise will be heard cycling, in order, from the front left, center, right, and both sur- round speakers.

Using the remote control, adjust the Center and Surround levels until the vol- ume of all the speakers is the same during the test.

Note: The test tone is used to calibrate the performance of the system. When listening to an actual recording, the volume level of the surround channels is generally much lower than that of the front channels. In fact, when lis- tening to a movie, virtually all of the dialogue and a sub- stantial amount of the effects are reproduced through the center channel.

ECS300 specifications

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