Velodyne DD-10 PLUS Manual

Also see for DD-18+: User manual Quick guide User manual Quick start guide Guide d'installation rapide

Contents

Velodyne DD-10 PLUS Manual Manual pdf 30 page image

OPTIMIZATION PARAMETERS EQThe following table describes the subwoofer EQ parameters that are either automatically configured with Auto-EQPLUS and/or Self-EQ. All ofthese parameters can be manually customized by you using the Manual-EQ method.EQ Parameter Set with Set with DescriptionAuto-EQPLUS Self-EQLow Pass Crossover Yes No The upper limit of your subwoofer’s frequency response.Frequency and Slope The crossover frequency can be set to increments of 1 Hz,between 40 Hz and 199 Hz or it can be disabled(-- or OFF). The crossover slope can be set to 6, 12, 18,24, 30 or 36 dB/octave.Typically, these parameters are the same for all thepresets however you can choose to vary the values inthe different presets.For Self-EQ the crossover frequency is set to 160 Hzwith a slope of 24 dB.The subwoofer crossover frequency can also be changedby the subwoofer’s front panel control. Please note that thistype of change is temporary until you change it and save itto the DD+ using either the TV or Windows interface.Subsonic Filter No No Sets your subwoofer’s lowest frequency limit inFrequency and Slope increments of 1 Hz between 15 Hz and 35 Hz.The subsonic filter slope can be set to 6, 12,18 or 24 dB/octave.Usually, the subsonic filter doesn’t need to be changed fromits default of 15 Hz with a steep roll off of 24 dB. The defaultsettings provide the maximum protection at the widestbandwidth. Increasing the crossover frequency protects thesubwoofer more; lowering the slope protects it less.If your subwoofer isn’t adequately protected at very lowfrequencies, you can blow up the subwoofer’s amplifier orcause other damage that requires subwoofer replacement,which are very expensive repairs.It is easier to overdrive the subwoofer at these lowfrequencies because you can’t hear these frequencies.Warped vinyl records can have unexpected output at verylow frequencies and damage the subwoofer. Some CD’sare made without filtering this part of the signal out.[ 27 ]Digital DrivePLUS User’s ManualOPTIMIZATION