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Owner’s Manual

21

DD-8+ Power

Figure 9 illustrates an example signal flow from inputs through signal processing channels through speaker 
outputs. In the illustrated scenario, Analog inputs 1, 2, 3 and 4 are routed through Linked processing channels 
A and B where Volume Controls, Bass, Treble, Parametric EQ and other audio parameters are applied, and then 
routed out to speaker OUTPUTS 1, 2, 7 and 8 (renamed with their locations and channel IDs). In this scenario 
inputs 1 and 3 are Left channel signals, 2 and 4 are right and they are processed separately to maintain their 
stereo nature.

 

Figure 9.

In the scenario shown in Figure 5, Analog inputs 1 & 2 are summed to mono by selecting the unlinked processor 
channel “F” and again routed to speaker outputs 1, 2, 7 & 8 (renamed with speaker locations). Inputs 3 & 4 
remain in stereo, routed through Linked processor A/B channels and out to speaker outputs 3 & 4 (renamed 
DEN left and right).

 

Figure 10.

ADVANCED OPERATION

Summary of Contents for DD-8+

Page 1: ...DD 8 Network Amplifier Owner s Manual...

Page 2: ...paratus has been exposed to rain or moisture does not operate normally or has been dropped 15 Use the mains plug to disconnect the apparatus from the mains 16 WARNING TO REDUCE THE RISK OF FIRE OR ELE...

Page 3: ...y that the product identified above conforms to the requirements of the EMC Council Directive 2014 30 EU the Low Voltage Directive 2014 35 EU the ErP Directive 2012 27 EU and the RoHS Directive 2011 6...

Page 4: ...ion CAUTION Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment NOTE This equipment has been tested and fou...

Page 5: ...t in your system Be sure to check Lexicon com periodically for the latest DD8 updates Hardware Highlights Multi patented DriveCore amplifier technology 8 channels each with 125W into 8 ohms all channe...

Page 6: ...any location exposed to direct sunlight Installation Options The DD 8 is shipped without feet or rack ears installed Both are included in the packaging and you will need to install one or the other de...

Page 7: ...D will glow BLUE indicating that the DD 8 is powered on NOTE When the status of the DD 8 changes or is powered up from standby mode there may be a delay in audio output and relay clicks may be audible...

Page 8: ...Speaker Outputs 6 Ethernet Port 7 Trigger In Out 8 AC Main Power Connector 9 MAC ID Label 10 Reset CAUTION Never make or break connections to the DD 8 unless the DD 8 and all associated components ar...

Page 9: ...es 2 Bus Input Provides a line level RCA connector input to simultaneously feed any or all speaker output channels utilizing a single stereo bus input signal The Matrix Switcher allows any input to be...

Page 10: ...for system set up including channel volume trim input assignment equalization and other functions See Configuration Dashboard instructions on page 14 After initial set up it provides connection to IP...

Page 11: ...C power connection to the DD 8 using the supplied power cord After all audio and system connections have been made connect the power cord to an AC power source Be sure that any device connected to the...

Page 12: ...s the graphics may take several seconds to redraw Hardware Connection 1 Begin by hardwiring the DD8 RJ45 Ethernet connection to a router 2 Take note of the MAC ID listed above the Ethernet port You wi...

Page 13: ...Configuration Dashboard Identifying the IP Address Mac OSX Lion and newer 1 Install a Lan Scanner from the App Store 2 Make sure you are on the same network as the DD 8 3 Open the application on your...

Page 14: ...Powerdown engaged To turn this off you must deselect the check box Save as a preset in order to preserve the state in the event of a power outage The Auto Powerdown circuitry allows the DD 8 to activa...

Page 15: ...gger Connecting a trigger is highly recommended when using the DD 8 in systems with IP controllers 4 Device Name Allows use of the connected computer s keyboard to give the DD 8 a unique name to help...

Page 16: ...aphs within the Parametric EQ area of the Dashboard 13 Bass Adjusts Bass output at 150Hz and below from 12dB to 12dB in 0 5dB increments 0dB is default Level changes are effected either by directly ty...

Page 17: ...d 17 Channel Volume Provides speaker level volume control for each processor channel or stereo pair Any inputs routed through the processor will be affected by this volume control Volume level changes...

Page 18: ...at signal is being routed to the output channel If any given channel is not green use the Matrix Switcher to select the desired input and processor channel 4 Clip Indicates when an amplifier output is...

Page 19: ...by directly typing in the desired value sliding the indicator icon or using the arrow up down buttons 10 Limiter The limiter tracks the level of the input audio signal and prevents it from exceeding a...

Page 20: ...dual or multiple output channels It is beyond the scope of this manual to describe every possible scenario and signal routing possibility Figure 8 illustrates the architecture and logic of the mixer A...

Page 21: ...r OUTPUTS 1 2 7 and 8 renamed with their locations and channel IDs In this scenario inputs 1 and 3 are Left channel signals 2 and 4 are right and they are processed separately to maintain their stereo...

Page 22: ...tem sound bad and may damage the loudspeakers Use caution when using the PEQ feature particularly if you have little to no experience with their use Be gentle especially when boosting gain NOTE If you...

Page 23: ...High Pass and Low Pass filters to flat 3 Eq Band On Off Toggle Use the check boxes to turn on or off an EQ band Default value is checkbox OFF Use the minimum number of frequency bands to achieve the d...

Page 24: ...m at a very specific frequency such as a cabinet resonance or bass trough or peak caused by room standing waves Wider bandwidths are more useful for gentle response smoothing Excessively high Q settin...

Page 25: ...oofer system HPF is the High Pass Filter that passes through high frequencies and filters out low frequencies LPF is the Low Pass Filter that passes through low frequencies and filters out high freque...

Page 26: ...ors the easiest method for choosing the correct setting is to input the distance between the farthest speaker to the listening position and the closest speaker Avoid over using this feature In almost...

Page 27: ...cable is connected at both ends and verify that the trigger cable is connected to the right device Also re verify the trigger installation instructions as instructed in the Basic Operation section of...

Page 28: ...ases one or more of the following suggestions below will solve the hum problem 1 If a cable TV connection is present disconnect the cable for the wall outlet If this eliminates the humming sound a gro...

Page 29: ...ttempts to correct a fault have failed 3 Contact an authorized Lexicon dealer 4 Contact Lexicon Customer Technical Support at 888 691 4171 Maintenance Routine maintenance should be performed on a peri...

Page 30: ...1 12 volts for 125W out into 8 ohms Gain 29dB Input Impedance analog 100K ohms typical Trigger Input 5V minimum 15V maximum DC Dimensions H x W x D 2 1 w feet 1 7 w out feet x 17 3 x 14 9 5 4 cm w fe...

Page 31: ...bter o manual do usu rio em outros idiomas acesse LEXICON COM Ga naar LEXICON COM voor de handleiding in andere talen G til LEXICON COM for bruksanvisning p flere spr k LEXICON COM LEXICON COM LEXICON...

Page 32: ...exicon logo are trademarks of HARMAN International Industries Incorporated registered in the United States and or other countries Features specifications and appearance are subject to change without n...

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