PRV Audio DSP 2.8X - Input and Output Routing Configuration; Crossover Filter Settings; Balance and Delay (Time Alignment); Limiter Functionality

PHASE
OUT1:180
This function is used for resolving problems caused by canceling frequencies. From this screen you can reverse the phase of all outputs
individually. Turning the “MAIN CONTROL” dial changes the phase (0º ou 180º) of the corresponding output. To select another channel, quickly
press the corresponding “OUTPUT SELECT” shortcut.
To protect your amplifiers and speakers, the DSP 2.8X has a limiter with an integrated “Dynamic Attack-Release” system for each of the 4
outputs. Use this function to attenuate and prevent damage to the system caused by signal peaks.
The Threshold (-24 to 0dB) setting defines a threshold for the Limiter’s activation: the Limiter kicks in when this threshold is exceeded.
The Attack parameter (0.1 to 100 ms) defines how fast the Limiter reacts / acts when the signal exceeds the Threshold.
The Release parameter (1 to 1600 ms) controls the recovery time elapsed between the time the signal falls below the Threshold and
deactivation of the Limiter.
In addition to manual adjustments of Attack and Release values, it is possible to enable the “AUTO” mode, where the Attack and Release
parameters are controlled in real time by the “Dynamic Attack-Release” system, providing ideal conditions for sound fidelity
Painel Frontal
da Caixa
Referência (*)
• PHASE
• LIMITER
The purpose of the routing option allows you select the audio source A, B or A + B (sum) for each output. Turning the “MAIN CONTROL” dial
moves the audio source to the selected route. To select another channel, quickly press the corresponding “OUTPUT SELECT”.
ROUTING
IN A+B ---> OUT1
• INPUT AND OUTPUT ROUTING
The crossover function allows precision definition of the cutoff frequencies for the high-pass filter and the low-pass filter, as well as filter
attenuations and topology individually by output.
The available filters and attenuations are:
HPF: Butterworth 12/18/24/36/48 dB/8ª
Linkwitz-Riley 12/18/24/36/48 dB/8ª
LPF: Butterworth 12/18/24/36 dB/8ª
Linkwitz-Riley 12/18/24/36 dB/8ª
• CROSSOVER
HPF OUT1
f:12 Hz LR48
LPF OUT1
f: 107 Hz BT12
In the “CROSSOVER” screen, each setting in the “MAIN CONTROL” changes the parameter in editing, between output, filter type, frequency
and attenuation / topology.
To select another output channel for editing you can also quickly press the OUTPUT SELECT “OUTPUT SELECT” of the corresponding output.
DALAY OUT1
12.0cm 0.349ms
The Delay function allows for the digital alignment of transducers
(speakers) via the time correction performed by the DSP, and ensures
that the sound from all the speakers arrives at the listener with
improved audio fidelity while avoiding frequency cancellations.
The adjustment can be carried out as follows:
2. Measure the distance from the other coils to the reference coil.
These are the distances used in configuring the delay of each output
channel.
1. Identify the coil farthest from the listener or the front panel of the
box. This coil will be used as a reference;
• BALANCE / DELAY
Front Panel
Front Panel
Reference (*)