Velodyne DD-10+ User Manual

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Velodyne DD-10+ User Manual Manual pdf 23 page image

www.velodyne.comDigital Drive PLUS Series User’s Manual - 17Connect the Digital DrivePLUS using Dual InputsThe Digital Drive PlUS has dual inputs; line-level RcA and speaker-level. you can use these dual inputs for dualsystems and dual connections to a single system.Guidelines for using this feature:• Adjust the input level from each system for proper balance.• The line-level and speaker-level controls on the subwoofer’s back panel act as attenuators, so you can turndown the feedfrom the system with the higher level.• If NOT using dual inputs, then set both level controls on the back panel to MAX.• The XLR inputs bypass these input level controls, but you can still adjust the speaker-level input down tomatch the XlR input, if the speaker-level signal is greater than the XlR-signal level.Dual SystemsThe Digital Drive PlUS allows for connection into two audio systems at one time; one through the line-level RcAinputs and one through the speaker-level inputs. This makes the setup easy for sharing the subwoofer with asurround system and a 2-channel music system.Dual ConnectionsSome listeners find an audible benefit in simultaneously connecting a subwoofer’s line-level and speaker-levelconnections to the same receiver. To easily make these simultaneous connections:1. connect the speaker-level connection from the receiver output to the speaker-level input on the DigitalDrive PlUS.2. connect the lFe (or l+R) line-level signals from your receiver to the line-level input on the Digital Drive PlUS.These dual connections aid in filling in the missing mid-bass in single systems with thin mid-bass. The single-system connection runs the Digital Drive PlUS subwoofer off of the signal voltage applied to the satellites, butmodified by the satellite impedance. This connection allows the Digital DrivePlUS subwoofer to more naturallyand seamlessly blend with your satellite speakers. If you feel your system’s mid-bass is thin based on yourlistening preferences, use dual connections and evaluate if your system’s mid-bass sounds better.Connect into a Dual SystemTo share the Digital Drive PlUS using its dual inputs for dual systems:1) connect the 2-channel music system to the subwoofer’s speaker-level inputs. Follow the connections inthe connect section. Be sure to connect + to + and – to –.2) connect either the lFe signal or the line-level left and right signal from the surround system to thesubwoofer’s line-level RcA input depending on the system type and connection availability.3) choose which system requires the more critical alignment. which one will you listen to more or which one requiresthe more precise alignment? we refer to this as the primary system and the other as the secondary system.4) listen to both systems with the line-level and speaker-level controls on the back of the Digital DrivePlUS atmAX (knobs all the way to the right).5) Turn the subwoofer volume up so that both systems at least match the main speaker output and soundfairly balanced in level.6) Turn down the level control (line or speaker) on the system that has too much bass compared to the mainspeakers when that system is running.7) Turn the secondary system off. Turn on and optimize the primary system using Place & Play, Self-EQ, Auto-eQPlUS, or manual-eQ. See how to perform these optimization procedures in the Optimize section.8) Turn off the primary system and turn on the secondary system. It should be close to the correct level, butyou can adjust a little more if you want. Do not change the primary system’s level control or you will haveto start from Step 4 again.NOTE: Be sure to play only one system at a time. Be sure to at least turn off the preamp and power amp or receiver of thesecond system. Playing both systems at the same time can result in damage to the audio components in both systems.