DEQX Calibrated™ processing
corrects frequency-response and time-domain
errors in your passive
or active monitor speakers and measures and corrects room
anomalies. The PDC-2.6 and PDC-2.6P (Preamp version) provides a 2-input
processor, that can also provide stereo 3-way active crossovers incorporating
DEQX's steep linear-phase crossovers. Alternately you can use
the PDC-2.6 to correct any two main speakers and use the ‘Low’ frequency
crossover output/s to provide properly integrated and time-aligned
mono or stereo subwoofers.
To achieve DEQX-HD (High Definition) Calibrated™ speaker
performance it is necessary to correct frequency-response and the
timing errors caused by group-delay and time-alignment in conjunction
with relatively steep linear-phase crossovers. This virtually eliminates
crossover distortion. Individual driver distortion is also reduced
by ensuring that each driver is only working in its ideal operational
zone, something that shallow passive crossovers rarely allow.
Drivers
distort less and play louder when acoustic energy for each driver
is better quarantined. DEQX-HD facilitates this with linear phase
filters up to 300dB/octave.
Less distortion means less listening fatigue;
essential for the modern audio engineer who spends long hours listening
for the finest of details at loud levels. Studio professionals
that use DEQX Calibrated™ technology
often wonder how they ever lived without it.
Freelance engineers
can take a PDC (2Kg, 1 rack unit high) with them to studios rather
than large and heavy speakers. Not only will it correct any speaker
response problems, it can compensate for room discrepancies too,
allowing for unheard of consistency from studio to studio, facility
to facility. Connection is a breeze, simply insert the PDC in the monitoring
chain before the amplifiers, it really is that simple.
DEQX-HD’s steep filter slopes allow lower crossover frequencies
to be chosen whereby bass/mid drivers do not get a chance to ‘beam’ or
output ‘muddy’ high frequencies causing an unnatural
reduction of highs off-axis. A further benefit is greater sound pressure
levels (SPL), the degree depending on how low crossover frequencies
are. Typically crossover frequency/s can be reduced by one-half to
one-octave using DEQX-HD; now that’s flexibility.
Inputs to
the PDC-2.6 are 2-channel analogue (both unbalanced and balanced are standard) and digital
(both AES/EBU and S-PDIF are standard). Processing is done with 40-bit floating point
precision, and with the I/O being 24-bit 44.1 kHz to 96 kHz you
can be assured of true professional sonic quality. Since all outputs
normally go directly to amplifiers, standard outputs are unbalanced
analogue (RCA) with optional XLR balanced, XLR/RCA digital, or both
(in the latter cased a 2-U high rack units is provided).
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