PDA753PSF is a complete solution dedicated to 3-way self-powered loudspeakers. Designed to meet different applications, it provides 4 channels with output power of 2x750W@4 Ohm+1500W @8ohm. In addition it offers a full set of added value features such as on board DSP and RS485 connection for monitoring and control via dedicated PC software. To guarantee maximum reliability, the PDA753PSF output stages use the well-known Class D amplifier module.

The PDA753PSF includes a set of sophisticated processes for loudspeaker, implemented by the powerful MARANI® DSP running 96kHz/24bit [96 bits precision for the internal intermediate processes] and high performance 24bit AD/DA Converters. Processes as Noise Gate, crossover filters, parametric EQs per input and output sections, RMS compressor, alignment delay, all in all everything needed to optimize a self-powered loudspeaker. Moreover the efficient heat dissipation system and Over-Heat protection ensure uncompromised reliability. Furthermore each output is also equipped with HP/LP filter, and up to 512 taps FIR filter, whose coefficients could be imported from the Third Party Application. All setup parameters for input mixing, DSP features and the limiter setting are accessible by using the remote PC software.

Outstanding Performance

HHigh power output:1 x 1500W @ 8Ω (BTL) + 2 x 750W @ 4Ω
Class D Amp Module - full bandwith PWM modulator with ultra low distortion
Full protection circuitry including Over-Current, Over/Under-Voltage, Output DC and Over-Temperature
Excellent sonic performance with 24bit high end converters coupled with 96kHz sample rate

Top-grade DSP Engine

5 band parametric equalization per input channel
7 band parametric equalization per output channel
All PEQ filters could be selected as Bell, Low/High Shelving, LP/HP variable Q and Notch Filter
Crossover filters with slopes from 6dB/Octave up to -48dB/Octave including Butterworth, Bessel, Linkwitz-Riley
Input/Output feature a precision dynamic range controller composed of a RMS Compressor and Peak Limiter
Adjustable Delay time up to 960.998 ms for input channel, and 20.998ms for output channel
Input channel includes a Noise Gate function, Pink/White noise generator, RMS Compressor, and a up to 48dB/Oct High-Pass filter
While Output channel contains up to 24dB/Oct HP/LP filter, up to 512 taps FIR X-over with coefficients possible imported from external application, and Peak Limiter

Network Connection

RS485 connection for system setup, monitoring and control via fully manageable remote PC software

Control

Simultaneous control up to 32 units via PC software
5 Preset Selection by using rotary encoder switch
Security Lockout

Power & Amplifier section

Number of Channels	3
Max Output Power	2x750W@4ohm+1500W@8ohm
Output Circuitry	Class D - full bandwith PWM modulator with ultra low distortion
Output Voltage	78 V (SE Mode) / Bridged 156V(BTL Mode)
THD+N(from 0.1W to 1/2 Power)	<0.08% (typical <0.05%)
Signal To Noise Ratio	>115 dB (A-weighted, 20 Hz - 20 kHz, 8Ω load)
Frequency Response	20 Hz - 20 kHz ± 0,15 dB (8Ω load, 1 dB below rated power)
Damping Factor	>500@1kHz
Power Supply	Switch mode power supply with PFC (Power Factor Correction) and integral standby converter
Operating Range	85 – 264VAC
Protections	Over-Current, Over/Under Voltage, Output DC and Over-Temperature
Ground Noise	-86dBu
Max Input/Output Level	+12dB
Analog Input	1 x XLR electronically balanced, +12dB
Analog Output	1 x XLR electronically balanced (Link)
AD & DA Converters	24bit
Frequency Response (DSP)	20 Hz - 20 KHz; -0.5dBu at 20 Hz and 20 kHz

DSP & Processing

DSP Engine	MARANI® DSP
DSP Resolution	24bit (data) x 24 bit (coeff.),54bit accumulation registers, 96 bit precision on intermediate processing data
Input/Output Level	-60 ~ +12 dB
Parametric Equalization	5 filters per input channel; 7 filters per output channel
Filter Type	Bell, Lo/Hi Shelving, LP/HP variable Q and Notch Filter
Filter Gain	from -15dBu up to +15dBu by 0.5dBu resolution steps
Center Frequency	Selectable with a 1Hz resolution step from 20Hz up to 20kHz
Bell Filter Q	Q from 0.4 up to 128
Lo/Hi-Shelving, HP/LP Filter Q	Q from 0.1 up to 5.1
Notch Filter Q	Q from 4 up to 104
Internal Noise Generator	Pink/White Noise available, level from -40 to 0 dBu
Crossover section HPF/LPF	Butterworth 6/12/18/24dB per octave; Linkwitz-Riley, Bessel 12/24dB per octave; Filter resolution 1Hz
FIR Crossover Section	Taps up to 512, with max 120dB Attenuation. Selectable Window type as Rect, Kaiser, Sinc, Hamming, Blackman, Blackman-Harris, Blackman-Nuttal, Nuttal, Kaiser-Bessel, Sine FIR coefficients can be imported externally
Input RMS Compressor	Makeup from -12 to +12dBu Threshold from-18dB up to +12dBu; Knee 0~100%; Ratio from 2:1 to 32:1; Attack time from 5ms up to 200ms; Release time from 0.1s up to 3s
Output Peak Limiter	Threshold from-18dB up to +12dBu; Attack time from 1ms up to 900ms; Release time from 0.1s up to 5s
Delay	up to 960.998ms for input up to 20.998ms for output