JBL Performance AV1 User Manual

Also see for Performance AV1: Brochure Manual

Contents

Mode AdjustJBL Performance5-36SURR ROLLOFF 500Hz to 20.0kHz, OFFApplies high-frequency attenuation control to the audio outputconnectors labeled Side L/R and Rear L/R. This filter is only appliedto output signals generated by the AV1.SURROUND DLY 0ms to 15msIncreases the perceived depth of the listening space by delaying thearrival time of signals from the side and rear speakers. It is recom-mended that you increase the setting when a greater sense ofdepth is desired in the listening space.SURROUND EX AUTO, ON, OFFControls the THX Surround EX decoding feature, which can beused to extract a rear channel from 5.1-channel Dolby Digitalsources.• When set to ON, THX Surround EX decoding is engaged forall 5.1-channel Dolby Digital sources.• When set to OFF, THX Surround EX decoding is not engagedfor all 5.1-channel Dolby Digital sources.• When set to AUTO, THX Surround EX decoding is engagedwhen a flagged 5.1-channel Dolby Digital source with THXSurround EX encoding is detected. THX Surround EX decod-ing is not engaged when a non-flagged 5.1-channel DolbyDigital source with or without THX Surround EX encoding isdetected.• The AV1 cannot automatically detect THX Surround EXencoding in non-flagged 5.1-channel Dolby Digital sources. Anon-flagged source does not include information in the inputsignal that identifies THX Surround EX encoding.The THX SurEX listening mode is available when THX Surround EXdecoding is engaged. The THX and THX ULTRA2 listening modesare available when THX Surround EX decoding is not engaged.THX Surround EX decoding cannot be engaged unless both sideand rear speakers are present. See “Speaker Setup” on page 3-24for more information.When the Shift command bank is activated, pressing the remote con-trol THX button while a 5.1-channel Dolby Digital input source ispresent activates the THX, THX ULTRA2 or THX SurEX listening mode.Note:Toggling the SURROUND EX parameter setting produces low-level clicks in the front speakers.SURROUND MIX -5dB to +5dBControls the relative level of surround channel information sent tothe audio output connectors labeled Front L/R. It is recommendedthat you set this parameter to +2dB or +3dB for all input sources.VOCAL ENHANCE +6.0dB, +3.0dB, +0.0dBControls the level of dialog boost in the audio output connectorlabeled Center. Increase this setting to improve dialog intelligibility,particularly at lower volume levels.