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miniDSP Ltd, Hong Kong 

www.minidsp.com

 / Features and specifications subject to change without prior notice

 

 

C-DSP

 

6

X

6-

IN 

8-

OUT 

I

N

-C

AR 

A

UDIO 

P

ROCESSOR

 

 

User Manual 

 

 

Summary of Contents for C-DSP 6X8

Page 1: ...miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 1 C DSP 6X8 6 IN 8 OUT IN CAR AUDIO PROCESSOR User Manual...

Page 2: ...ong Kong www minidsp com Features and specifications subject to change without prior notice 2 Revision history Revision Description Date V0 1 Preliminary version 28 August 2015 V1 0 First release 9 Se...

Page 3: ...2 Mac OS X 12 3 2 Hardware connectivity 13 3 2 1 Analog inputs 13 3 2 2 Digital input 14 3 2 3 Analog outputs 14 3 2 4 DC power 15 3 2 5 Remote 16 3 2 6 USB 16 3 3 Synchronizing with the processor 17...

Page 4: ...d loading configurations 31 4 5 4 Loading configurations from microSD card 31 4 5 5 Restoring to defaults 32 4 6 Keyboard shortcuts 32 5 Using the C DSP 6x8 33 5 1 Status indicators 33 5 2 Controls 33...

Page 5: ...atest version Mac OS X Intel based Mac with 1 GHz or higher processor clock speed 512 megabytes MB of RAM or higher Keyboard and mouse or compatible pointing device USB 2 0 port Mac OS X 10 4 or highe...

Page 6: ...digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection This equipment generates uses and can radiate radio frequency energy and if not installe...

Page 7: ...udio tuning on every channel o Parametric EQ peaking high shelf low shelf o Butterworth and Linkwitz Riley crossovers up to 48 dB octave o Individual time delay and level adjustment o Advanced biquad...

Page 8: ...ce and downloads instructions into the miniDSP hardware unit that tell it how to process the audio signal Other platforms miniDSP makes many other boxed and kit hardware units with analog stereo digit...

Page 9: ...ers in the next step you can feel free to experiment at this point 3 Reset all parameters From the Restore menu select the Factory Default option This will reset all processing parameters back to the...

Page 10: ...e the volume until you hear audio quietly coming from the speakers Verify that the plugin is performing the intended function For example if implementing a two way crossover confirm that the tweeter i...

Page 11: ...connection the first time the plugin is used If the plugin does not start properly see Troubleshooting 3 1 1 Windows Prior to installing the miniDSP software download and install the following progra...

Page 12: ...the text Allow Applications downloaded from click on Anywhere Then download and install the following programs You will need to accept the license agreements in order to successfully complete the inst...

Page 13: ...rectly to the RCA jacks on the front panel Be sure to take careful note of the channel numbering shown in this diagram and on the front panel These inputs accept a maximum input voltage of 4 VRMS Alte...

Page 14: ...the front panel Note the digital input accepts only a stereo PCM digital signal It does not accept encoded or multichannel digital audio 3 2 3 Analog outputs There are eight analog output channels Un...

Page 15: ...nal block also provides two pins for remotely switching power on and off To enable the remote enable a jumper inside the unit needs to be moved REMOTE IN This input will turn the C DSP 6x8 on and off...

Page 16: ...ied cable The RJ11 plugs on each end simply plug into the base of the remote and into the rear panel of the C DSP 6x8 The wired remote also contains the receiver for infrared remote control 3 2 6 USB...

Page 17: ...processor After downloading the configuration data the plugin is in online mode and any changes to processing parameters will be downloaded immediately in real time That is the user interface is now...

Page 18: ...on can be done with the wired remote or an infrared remote control see Using the C DSP 6x8 If desired however the plugin can remain connected during use for real time live control of all audio process...

Page 19: ...djusted by moving the Gain Adjustment slider or by typing the desired gain into the Current Gain text box The maximum gain setting is 12 dB and the minimum gain setting is 72 dB 0 dB the default is un...

Page 20: ...r to view the labels of the input and output channels can be changed in the Input and Output tabs Each input output channel assignment is turned on and off by clicking the button corresponding to the...

Page 21: ...channel can be adjusted by moving the Gain Adjustment slider or by typing the desired gain into the Current Gain text box The maximum gain setting is 12 dB and the minimum gain setting is 72 dB 0 dB t...

Page 22: ...cies from the signal sent to the tweeter In a three way speaker the midrange driver will use both the high pass and low pass filters Crossover filters can also be used to limit low frequency content d...

Page 23: ...lter Butterworth BW Available in 6 12 18 24 30 36 42 and 48 dB octave Butterworth crossover filters are 3 dB down at the cutoff frequency Linkwitz Riley LR Available in 12 24 36 and 48 dB octave Linkw...

Page 24: ...ing the combined response of all enabled parametric filters on that channel For example the screenshot above shows a response curve created with a low shelf boost filter at 100 Hz a dip at 500 Hz and...

Page 25: ...ter reduces the number of available filters on that channel from six to five Frequency For the PEAK and SUB_EQ filter types this is the center frequency of the peak or dip For the HIGH_SHELF and LOW_S...

Page 26: ...e delay corresponds to a distance This distance is shown in cm when the cursor is hovered over the time delay box The maximum time delay of 15 ms corresponds to a distance of approximately 5 2 meters...

Page 27: ...A biquad is the basic unit of processing that is used to create digital filters It can be described either with an equation or with a signal flow diagram as shown here A single biquad like this can pe...

Page 28: ...ed to a maximum of six This example illustrates the correct file format biquad1 b0 0 998191200483864 b1 1 9950521500467384 b2 0 996920046761057 a1 1 9950521500467384 a2 0 9951112472449212 biquad2 b0 0...

Page 29: ...equires Microsoft Excel http www minidsp com images fbfiles files All_digital_coefs_v1 20101026 zip 4 4 3 2 Room EQ Wizard REW Room EQ Wizard is a free acoustic measurement and analysis tool available...

Page 30: ...t time the plugin is synchronized to the processor the parameters will be downloaded to the processor as long as the Synchronize Config button is selected The configuration contained in the miniDSP ha...

Page 31: ...rrent slot If the plugin is in online mode the new configuration data will be downloaded to the processor immediately If the plugin is in offline mode the configuration will be loaded into the user in...

Page 32: ...Reset only the currently selected configuration preset to the factory default settings If the plugin is in online mode the configuration data on the processor all or just one configuration as selected...

Page 33: ...lection buttons 5 2 CONTROLS To change the volume Rotate the control knob clockwise to increase the volume and counter clockwise to decrease it The LED bar graph on the left indicates the master volum...

Page 34: ...NEC Sony Philips RC6 To initiate the learning process drop down the IR Remote menu and select IR learning Click on the Learn button for an operation and then press the desired button on the remote co...

Page 35: ...tput Audio resolution 24 bit input and output 48 kHz internal sample rate Audio processing 172MHz 28 56bit Digital Signal Processor Storage presets All settings controllable in real time from software...

Page 36: ...4 No audio or low audio on outputs a Check the cabling from the processor to your amplifiers b Check that your amplifiers are turned on and that any volume controls are turned up c Check that the inp...

Page 37: ...nstallation folder of the plug in download To update the firmware 1 Connect a microSD card to the computer and copy the hex firmware file onto it The card will need to have been formatted in FAT forma...

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