background image

                                                                                                                    

 

10 

 

three parametric filters, and change the parameters with the left-right keys. 
 
 
 
 

 

FIG 5 

PEQ MODULO

 

 

The Q controls the width of the filter, and can be selected from 0.2 (widest) to 16 (narrowest).  
The Center Frequency moves the filter across the frequency range, and can be adjusted from 20 to 20 kHz. 
The Gain adjusts the addition/subtraction of the selected range, and can be adjusted from -12 to +12 dB.  

  
The response of the system as a result of the user-selected parameters is shown in real time on the LCD display. 
 

MUTE (MUTE) 

The MUTE module allows the user to independently enable/disable the BPD-1 outputs. This is a useful tool when making  
installations or repairs of the sound system. To direct-access this module, press the MUTE key or select MUTE in the main  
menu.  
  
To modify the state in this module, select the output to change by scrolling up-down with the Navimec, and modify the  
value with the left-right keys. To exit, scroll down to Exit and press OK.  
 

SIGNAL LIMITER 

The Signal Limiter processes the input signals in such a way that the amplitude of the signal is kept below the user-defined  
threshold. Select Limiter in the main menu to access this module.  
  
The first menu of the Signal Limiter has the following options:  

 WAY: 1  
 CONFIGURE  
 EXIT  

  
When WAY is selected press the left or right key of the Navimec to change the output way to be configured.  
  
Once the option CONFIGURE has been selected, the user will be able to scroll up-down through the parameters of the  
Signal Limiter, and change the parameters with the left-right keys. This module features two modifiable parameters:  
Softknee and Threshold. The parameters affect both inputs simultaneously.  
  

The Softknee (soft-transition) features ten levels of adjustment, from 1 to 10 (0 is Off). Knee is the threshold from  
which the module starts compressing. The level of the softness controls the roughness of the transition between no- 
compressing and fully compressed (limited). The maximum level (10) delivers the softest transition (softknee),  
while the lowest level (0) delivers the standard sharp transition (hardknee). Use the up-down keys of the Navimec  
to select the parameter, and the left-right keys to decrease or increase the level.  
  
The Threshold is the RMS point where the module starts compressing. Signal levels above the threshold are  
limited. To achieve better results, the input signal should only have few spikes above the threshold. The threshold  
adjustment goes from -40 to +20 dBu.  

 
 

STORE PROGRAM 

Once the system has been properly configured, it is recommended to save the program to the build-in non-volatile memory  
of the BPD-1. The BPD-1 has the capacity to save up to 10 user programs where the user can save his system  
configurations. To direct-access this module, press the STORE key, or select Store Program in the main menu.  
 

Summary of Contents for Power drive BPD-1

Page 1: ...arantee is valid if the apparatus is connected to a different voltage Turn off and disconnect the voltage supplies before connecting the apparatus Do not place the unit near sources of heat like radiators lamps stoves etc Do not connect the outputs of a channel with the outputs of another channel Do not connect the outputs of the processor in parallel with the outputs of another processor Bunker E...

Page 2: ...NECTIONS 6 SYSTEM PROGRAMMING 6 MODULES OF OPERATION 7 Graphic Equalizer GEQ 7 Crossover XOVER 7 Subharmonic Synthesizer SUBH 8 Signal Compressor COMP 8 Alignment Delay DELAY 9 Parametric Equalizer PEQ 9 Mute MUTE 10 Signal Limiter 10 Save Program 10 Real Time Analyzer RTA 11 Language 12 Polarity 12 Lock 12 APPLICATION GUIDE 13 WARRANTY 14 ...

Page 3: ...les that help the sound engineer in the adjustment and calibration of the system efficiently and in less time Bunker BPD 1 Processor Features Dual 31 band Graphic EQ Stereo or Linked Sub harmonic Synthesizer State of Art Compressor Crossover Configurations L R and Butterworth 2x2 2x3 2x4 2x5 2x6 2x7 2x8 Stereo Multi band Parametric EQ 3 bands per way Stereo Output Peak Limiters Speakers Alignment ...

Page 4: ...uantity 8 Signal Outputs Impedance 150 Ω Maximum Level 20 dBu 7 75 Vrms Power Supply Operating Voltage 85 240 VAC 50 60Hz 30 Watts Processing DSP 32 Bits Floating Point TI TMS320C6722 ADC Burr Brown SNR 118 dB Typical DAC Burr Brown SNR 118 dB Typical Sampling Rate 96kHz THD N 0 001 1kHz 0 dB Physical Weight 5 5 lbs shipping weight 7 5 lbs Dimensions 1 75 Height x 7 75 Length x 19 Width ...

Page 5: ...e Mute Interface where the user can activate deactivate outputs 5 Input Level Columns The Input Level Columns help to monitor the magnitudes of the signals applied to the inputs BPD 1 level given in dBu The unit has two columns one for the channel A and another one for channel B in which the input levels are displayed in real time The range of the displayed levels is from 20 dBu to 20 dBu 6 Output...

Page 6: ...outputs four for each input channel Input A is routed to Outputs 1 through 4 Input B is routed to Outputs 5 through 8 The connector is XLR male for connecting to amplifiers EXECUTABLE CODE IN BLOCKS INPUTS OUTPUTS CH A CH A High 31band 3 bands Subharmonic Compressor Limiter Delay Graphic Parametric CH B Limiter generator CH B High Equalizer Equalizer MIC RTA Crossover INPUT CH A Mid High Real Time...

Page 7: ...ressor Alignment Delay Parametric Equalizer MUTE Signal Limiter Store Program Real Time Analyzer RTA Auto Equalization AUTO EQ Language Polarity and Lock Gain For more information see section Modules of Operation To change to another program use the up down key from the Navimec to navigate through the different programs Notice that the non loaded programs will have at the top the label LOAD OK and...

Page 8: ...allows the divisions of the input signal into up to four frequency bands this allows a more optimum frequency response from the loud speaker system Each frequency band is independent from each other The BPD 1 uses High Pass Filters HPF Low Pass Filters LPF and Band Pass Filters BPF based on the selected configuration To direct access this module press the XOVER key or select Crossover in the main ...

Page 9: ...zer was developed to enhance the low frequency response of the audio The module analyzes signals in the range of 50 to 170 Hz and generates lower frequency harmonics with a relationship to the main signal determinate by the user selected percentage To direct access this module press the SUBH key or select Subharmonic Synthesizer in the main menu The Subharmonic Synthesizer User Interface is shown ...

Page 10: ...ss the DELAY key or access the module by scrolling through the main menu and selecting DELAY The alignment delay module can adjust in meters or milliseconds If the user chooses milliseconds the delay can be adjusted from 0 to a Max mSec per way based on the amount of ways enabled Max 4 Way 12mSec 3 Way 16mSec 2 Way 25mSec 1 Way 50mSec If the user chooses meters the delay can be adjusted accordantl...

Page 11: ... key of the Navimec to change the output way to be configured Once the option CONFIGURE has been selected the user will be able to scroll up down through the parameters of the Signal Limiter and change the parameters with the left right keys This module features two modifiable parameters Softknee and Threshold The parameters affect both inputs simultaneously The Softknee soft transition features t...

Page 12: ...ency is displayed and at the bottom right corner the gain is given The user can select the frequency to be displayed by using the left right keys of the Navimec To exit press the OK key AUTO EQ The RTA module helps the user to calibrate the frequency response of the system in the lowest amount of time This module auto equalizes both inputs together For this module to operate a flat response microp...

Page 13: ...ated due to program selection or by Mute enabled the LCD will display Off for the output As a result the polarity of the signal cannot be change To exit the module select Exit and press OK LOCK The lock module allows the user to block other people from performing changes to the configuration of the BPD 1 Only the users with the PIN Personal Identification Number are allowed to perform modification...

Page 14: ...nnect the outputs of the mixer to the inputs of the BPD 1 3 Connect the outputs of the BPD 1 to the inputs of the amplifiers 4 Connect the outputs of the amplifier to the speakers 5 Turn on the equipment in the following sequence First the BPD 1 then the Mixer and then the Amplifiers 6 Choose the program to use 5 Three ways Stereo this is 2 input signals and 6 output signals and press OK ...

Page 15: ...his warranty policy does not covers a The installation and adjustments needed for proper operation in the user s system or problems related to the interconnection to other apparatus b Cosmetic defects and or defects caused by accident wrongful used abuse negligence or modifications of any part or function of the unit c This warranty does not cover damage caused by wrongful operation or maintenance...

Reviews: