FBT QUBE SP27 - Manual (Page 8)

Introduction
The SP27 are powerful DSP based audio processors, ideally suited for install applications, where they
combine the functions of a multitude of conventional products in a compact 1U unit with extensive remote
control capabilities. To achieve this, the units have up to four inputs and eight outputs which can be configured
in a selection of basic crossover modes - 4 x 2 way; 2 x 3 way + 2 Aux; 2 x 4 way; and 1 x 8 way (as applicable
to i/o configurations). They also offer a "free assign" mode, which allows completely flexible routing of any
output from any combination of inputs.
Each input has a gain control, variable delay and a further eight bands of fully parametric equalisation. The
parametric filter bands have a large selection of different filter types available, including shelving.
Each output has a gain control, variable delay, high and low pass crossover filters, nine bands of fully
parametric equalisation, polarity switching and, additionally, a fully featured limiter, and a final clip limiter. The
crossover filters offer slopes of up to 48dB/Octave., with a variety of responses available.
A GPI interface may also be fitted to allow remote memory recalls using simple switch closure apparatus.
Security lock-out is available for all controls.
The SP27 are also equipped with AES/EBU digital inputs and include a sample rate converter, capable of
accepting anything from 32kHz up tp 192kHz.
Superb audio quality - carefully optimised double precision signal processing coupled with 24 bit conversion
ensure a dynamic range in excess of 117dB. The high sampling rate of 96kHz means minimal filtering
providing exceptional sonic purity with a bandwidth in excess of 32kHz.
A flexible input/output multi-mode format caters for any configuration, regardless of scale.
Both routing of inputs to outputs, and ganging (for editing) are completely flexible.
A completely new SHARCTM based DSP platform supplies phenomenal computational power, allowing the
unit to provide not only multiple bands of standard parametric equalisation on every input and output, but an
additional full spectrum graphic equaliser on each of the four inputs. This additional power also permits both
program limiters and no overshoot clip limiters on each output.
Delay of up to 650mS may be independently set for each output, with an exceptionally fine minimum increment
of 300nS, which corresponds to a distance change of 0.1mm!
The comprehensive standard specification also includes up to 255 memories.
XTA's new proprietary Complex Unified Nyquist Truncation algorithm ensures that no matter how much
equalisation is applied to a channel, there will always be sufficient headroom available to cater for it.
Features
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