Related Manuals for Precision Power DEQ.8
Summary of Contents for Precision Power DEQ.8
- Page 1 DEQ.8 USER MANUAL www.precisionpower.com www.precisionpower.com / For more info please contact tech@precisionpower.com Features and Specifications are subject to change...
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Page 2: Table Of Contents
Contents Product Introduction ........................................ 3 System Connectivity ......................................... 5 2.1.1 DC Power connectivity .................................... 5 2.1.2 Audio connectivity ....................................6 Plug-in Architecture ........................................8 3.1.1 Main Page ........................................8 3.1.2 Preset Memory selection ..................................8 3.1.3 Input Tab ........................................8 Matrix Tab ........................................... -
Page 3: Product Introduction
1 Product Introduction DEQ.8 is a Digital Audio Signal Processor (DSP) capable of performing a wide range of applications, from filtering, equalization to time alignment. Typically located between an audio source (CD player/Receiver/Preamp/PC .. etc) and the amplifier, a DSP will provide unparalleled tuning flexibility to improve your audio system’s performance. - Page 4 As a general guideline, you should first configure your DEQ.8 board before connecting anything to the outputs of the DSP (loudspeakers/other output sources). Doing so will insure that you have the software correctly configured and won’t cause any damage to your system.
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Page 5: System Connectivity
2.1.1 DC Power connectivity DEQ.8 requires a 12V regulated power supply of at least 1.5A (18W). Be careful to apply the correct polarity to the Terminal block connector as below. For a quick confirmation, take a look underneath the PCB for the silkscreen labels. -
Page 6: Audio Connectivity
2.1.2 Audio connectivity DEQ.8 can accept both balanced and un-balanced audio inputs/outputs. See the below instructions for audio connectivity on your DSP processor. Signal Max input/Max output Maximum Input signal @ 0dBFS RCA connector: 2Vrms (+8 dBu) or 0.9Vrms High Level Inputs: 4Vrms (+14 dBu) with an unbalanced signal, 8Vrms with a... - Page 7 Connect & Synchronize a) Synchronize: With this option, the current plug-in configuration will be loaded/flashed to the DEQ.8 and your plug-in turned to “On- line” mode. Warning that it will overwrite whatever configuration was previously loaded on the board. If you’d like to load a different configuration, click cancel and go to the settings tab to load one of your previously saved configurations.
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Page 8: Plug-In Architecture
Input Tab The first step in configuring your DEQ.8 consists in making sure audio is being fed to the input correctly. To do so, click on the button labeled “inputs”. The RMS meter will quickly indicate the average value of the input signal in dBFS (i.e. relative to the full scale of the ADC or 24bit I2S signal). -
Page 9: Matrix Tab
This meter displays dB full scale (dBFS) values and will saturate at 0dBFS (full scale of the ADC). Do make sure to keep the signal below 0dBFS (red color) and with enough headroom (say 10dB) to prevent saturation during the typical audio peaks of a music source. Custom Label Per channel... -
Page 10: Output Tab
Output Tab Custom label Monitor Output volume Crossover control PEQ control Mute control Polarity control Output delay Master volume control 3.3.1 Custom Label The custom label feature allows you to input a user defined label for each output channels: A handy feature to remember the output configuration of your system. - Page 11 Linking Features High Pass Filter Low Pass Filter settings settings Cut off frequency: Select the -3dB frequency by either entering the value or using the up & down arrows of the numeric box. Filter types: Linkwitz Riley (LR): Available in 12, 24, 48dB/oct Butterworth (BW): Available in 6, 12, 18, 24, 30, 36, 42, 48dB/oct Bessel: Available in 12dB/oct Each filter has different phase and amplitude characteristics.
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Page 12: Graphic Equalizer
3.3.5 Graphic EQ Graphic EQ band selection: 31 bands of equalization per output Bypass all turns off the EQ settings Reset All : Warning will reset all of the loaded EQ settings 3.3.6 Parametric Equalizer EQ band selection: Select one of the 6 x Parametric Equalizers ... -
Page 13: Save Configuration
3.4.2 Save configuration Use this feature to save your audio settings configuration. The following dialog box allows you to save the file anywhere on your PC as a .xml format. All 4 memory preset configurations will be saved. 3.4.3 Restore Factory default Use this feature to restore the board back to factory default. -
Page 14: Troubleshooting
4 Troubleshooting The following symptoms were found to be the most likely cause of issues. Item# Symptoms Troubleshooting recommendation If not solved go to item No audio on outputs - Make sure that audio signal is shown on the RMS input meters.
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