Marani Pro Audio PDA500PF Owner's manual

PDA500PF
PDA500PF is a complete solution dedicated to 1-way or 2-way self-powered loudspeakers. Designed to
meet different applications, it pro ides 2 channels with output power of 2x500W@4 Ohm or
2x250W@8 Ohm. In addition it offers a full set of added alue features such as on board DSP and
RS485 connection for monitoring and control ia dedicated PC software. To guarantee maximum
reliability, the PDA500PF includes a highly efficient uni ersal switch mode power supply with PFC
(Power Factor Correction) which pro ides a total 1kW power to the 2 output channels. The 2 output
stages use the well-known Pascal Class D SPRO2 module. The PDA500PF includes a set of sophisticated
processes for loudspeaker, implemented by the powerful M704 DSP running 48kHz/24bit [96 bits
precision for the internal intermediate processes] and high performance 24bit AD/DA Con erters.
Processes as Noise Gate, up to 512 taps FIR filters OR up to 48dB/Oct IIR Hp/Lp filters for X-o er,
parametric EQs per input and output sections, RMS compressor, alignment delay and All-Pass filters
are a ailable, all in all e erything needed to optimize a self-powered loudspeaker. Moreo er the
Clip/Limiter function per channel pro ides output monitoring to pre ent speaker damage with gentle
gain reduction at clip threshold, in addition to the efficient heat dissipation system and O er-Heat
protection which themsel es ensure a reliability without compromises. Furthermore the PDA500PF is
also equipped with a Dynamic Loudness function and an useful Pink/White noise generator. All setup
parameters for input mixing, DSP features and the limiter setting are accessible by using the remote
PC software.
A Powerful 512taps FIR is available for the System Phase Correctio , based o System Respo se
measureme t.

Features
Outstanding Performance
High power output: 2 x 500W @ 4Ω or 2 x 250W @ 8Ω
Switched-Mode Power Supply with PFC and auto oltage sensing
Pascal Class D Amp Module - full bandwidth PWM modulator with ultra low distortion
Full protection circuitry including O er-Current, O er/Under-Voltage, Output DC and O er-
Temperature
Excellent sonic performance with 24bit high end con erters coupled with 48kHz sample rate
Top-grade DSP Engine
10 band parametric equalization per input channel
8 band parametric equalization per output channels
FIR OR IIR Filters for X-OVER:
The X-O er can be implemented both by FIR filters OR IIR Hp/Lp, as desired by the user which can
select the FIR or IIR use by Sw.
FIR: Crosso er filters can be created by the user selecting from 256 up to 512 taps, the FIR type and
the Out Band attenuation or importing from external application the FIR coefficients as '.txt' file.
IIR: Crosso er filters with slopes from 6dB/Octa e up to 48dB/ Octa e including Butterworth, Bessel
and Linkwitz-Riley
Each output features a precision RMS Limiter with selectable Attack/Release time and Threshold.
On the Low Output, a Bell type Dynamic Filter for Dri er protection is a ailable.
Adjustable Delay time up to 161 ms for input and 81ms for output channels
Input channel includes a Noise Gate function, Pink/White noise generator, sophisticated Dynamic
Loudness function and a High-Pass filter with slopes from 6dB/Octa e up to -48dB/Octa e including
Butterworth, Bessel, Linkwitz-Riley and a RMS Compressor.
Direct PC/Network Connection
Rs485 connection for system setup, monitoring and control ia fully manageable remote PC software
Control
Simultaneous control up to 32 units ia PC software
8 Preset Selection by using rotary encoder switch
Security Lockout

Power & Amp lifier Sectio s
Number of Channels 2
Max Output Power @ 8 ohms 2 x 250W
Max Output Power @ 4 ohms 2 x 500W
Output Circuitry Class D - full bandwidth PWM modulator with
ultra low distortion
Output Voltage +/-70 V (SE Mode unloaded) / Bridged +/-140V
(BTL Mode unloaded)
THD @ Rated power 4Ω (1kHz) <0.005% (20 Hz - 20 kHz, 8Ω load, 3dB below
rated power)
Signal To Noise Ratio >120 dB (A-weighted, 20 Hz - 20 kHz, 8Ω load)
Frequency Response 20Hz - 20kHz ±0.5 dB
Power Supply Switch mode power supply with PFC (Power
Factor Correction) and integral standby con erter
Operating Range Uni ersal Mains, 85-265V
Consumption / Current draw and Thermal
dissipation @ 230 V
11.2W / -A / 38.3 BTU/h (Idle)
173W / -A / 143.4 BTU/h (I/8 max. power@4Ω)
Protections O er-Current, O er/Under Voltage, Output DC
and O er-Temperature
Audio
Analog Input 1 x XLR electronically balanced, +12dB
Analog Output 1 x XLR electronically balanced (Link)
AD&DA Con erters CS42528 24bit
Frequency Response (DSP) 20-20KHz; -0.5dBu at 20Hz and 20kHz

DSP & Processi g
DSP Engine MARANI M704
DSP Resolution 24bit (data) x 24 bit (coeff.), 54 bit accumulation
registers, 96 bit precision on intermediate
processing data
Parametric Equalization 10 filters input, 8 filters output channels
Filter Type Bell, Low/High Shel ing ariable Q, Low/High Pass
Q ar and Notch
Filter Gain From -15dBu up to +15dBu by 0.5dBu resolution
steps
Center Frequency Adjustable with a 1Hz resolution step from 20Hz
up to 20kHz
Bell Filter Q/BW Q from 0.5 up to 10 by 0.1 resolution steps
System Phase Correction 512 taps FIR
Crosso er section FIR from 256 up to 512 taps coefficients, FIR type
selection and out of band attenuation, operating
from 250Hz, up as X-o er point; accepted
coefficients generated by external applications
Crosso er section IIR HPF/LPF Butterworth 6/12/18/24/48dB Octa e
Linkwitz-Riley 12/24/36/48dB Octa e.
Bessel 12/24dB Octa e.
Filter resolution 1Hz
Input Special Filters FIR up to 512 Taps for System Phase Correction
working with Internal Wizard Tool or importing
Coefficients from External Application
High-Pass filter up to 48dB/Oct
Sophisticated Dynamic Loudness
Input RMS Compressor Dri e from -12 to 6dBu; Threshold from -18dBu
up to -12dBu; Attack time from 5ms up to 100ms;
Knee 0~100%; Ratio from 2:1 to 100:1;
Release time from 40ms up to 1000ms (10ms
resolution).
Output Peak Limiter Threshold from -18dBu up to +12dBu Release
time from 40ms up to 1000ms (10ms resolution
up to 200ms,100ms res. up to 1000ms) Attack
time from 1ms up to 100ms (1ms resolution up to
20ms, 10ms resolution up to 100ms)
Delay 161 ms, 20.8us increment / decrement steps on
Input Channel and 81ms, 20.8us increment /
decrement steps on each output Channel

Ge eral
Front GAIN pot. -30dBu ~ 0dBu
PRESET EQ 8 positions Rotary encoder switch
Red LED (Power); Yellow LED (Link); Green LED
(Signal presence)
1 x XLR female connector (Input)
1 x XLR male connector (Link Output)
2 x RJ45 connector (M-LAN Rs485)
IEC C13 16A connector; Power on/off switch
Dimensions 355x70x155mm
Weight, Net / Shipping 6.61 lbs (3 Kg) / 8.82 lbs (4 Kg)

Processes Block Scheme

PDA500PF PC Sw Quick User's Guide
Before to install the 'setup.exe', please make sure that the Net Framework 4.0 is already installed on
the PC used.
After install the 'setup.exe' and run the app “PDA500PF” then the system show the following window
and after few seconds the main window
The user must click on the menu “Co ect” in order to connect one or se eral de ices.

The User has the possibility to connect the de ice ia RS485
If the Sw is used for the first time with a new Hw Plate, will be necessary assign to the plate the
specific ID number, so to be able to put more plates in the same Network.
The ID assignment can be done asking the Sw to “Search” for the connected de ice (for the ID
assignment only ONE de ice has to be connected to the Pc Sw) and once found, the ID can be assigned
and 'stored” within the connected unit.
Once done this for more units, assigning them different Ids, then the all units can be connected in
Network and to be controlled by the same Pc sw.
If only one unit with a defined Id is connected to the remote control, in order to control it will be
enough to select as connection “with one de ice” and set as “ID Select” the one of the connected
unit. If more units with their different ID are connected in network , then just need to select as
Connection the “with se eral de ices”.
The User must also set the number of the COM used to connect the de ice(s). When the RS485 is used
and the User want connect se eral de ices then is important that all de ice ha e an unique ID in order
to a oid de ices “o erlap”.
If user not know the a ailable COMs, then can use the button “Check” to see all COM connected on
the PC.

Once set the Connection parameters, press the button “OK” and the system will start to check for the
connected de ice(s).
When found the connected de ice(s) the Sw will show a list of the de ices found (if no de ice are
found then is possible to continue in demo mode “Off-line”) on the window “List ID”.
If no de ices found, the Sw will ask if the user want to continue in demo mode for e aluating the
a ailable process of the PDA500PF.
To edit the de ice, double click on the name of the de ice present on the “List ID”

EDITING Wi dows
on the Edit window is possible edit all parameters of the Input and output Output channel, sa e and
load configuration on the sw PC and see the current ersion of the firmware and software.
On the ALL Editing Windows, the Top Bar is fixed and shows e er the se eral a ailable “tools'' useful
for the User to manage the Editing Job so as to sa e it on Pc or within the unit.
TOOL BAR
NOTE ON PRESET STRUCTURE ON PDA500PF: Before to proceed with the description of the functions
related to the se eral icons and buttons on the tool bar, need to describe which is the presets'
structure adopted for the PDA500PF. We did start from the idea that the presets ha e to in ol e ONLY
the Input path parameters, and not to in ol e the Output Sections. This basically because we
considered that the Plate, once set the proper configuration for the specific cabinet, has to ha e the
output parameters, as Xo er and delay, or Phase set, fixed, being those parameters strictly related t
the cabinet itself and its set up, and not instead used for creating different “sounding styles”, which
are left to the user in terms of Input parameters set up. On the base of this principle, we did manage
the preset structure so to gi e the possibility to Sa e on / load from Pc or store into / recall from the
PDA500PF up to 8 Input configurations, and set the single Output configuration in a dedicated area of
the PDA500PF internal memory.
To be more clear, let define the following as the INPUT PARAMETERS, which are the ONLY ONES sa ed
on / Loaded from Pc and Stored into / recalled from the internal memory of the PDA500PF when a
preset is created:
–Input Gain
–Input Mute
–Input Phase
–Input NoiseGate (Bypass,Thr,Rel,Atk)
–Input Delay
–Input RMS Compressor (Bypass, Thr, Ratio, nee, Rel, Atk, Makeup)
–Input Dynamic Filter
–Input HP Filter
–Input 10 PEQ (Type, Freq,Q,Gain,Bypass)
–Enable/Disable FIR Phase correction
–Name Preset
Particularly, the one abo e are the ONLY parameters sa ed on Pc and loaded from Pc.
All other parameters, included the ones related to the Outputs configurations, are stored ONLY withi
the PDA500PF memory.