ATL twotwo sub1, Руководство пользователя

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System Description
All twotwo active subwoofers share the same
powerful DSP engine, operating at a fixed
sample rate of 96kHz.
The two balanced analogue inputs are
conditioned by an adjustable low-noise gain
stage prior to A-D conversion to optimise the
signal-to-noise ratio. The converter is a very
high quality delta-sigma device, producing
a 24-bit, 96kHz output. The left and right
channels are summed to drive the subwoofer
speakers, but passed on as separate signals
to the analogue outputs.
The AES3 digital input accepts sample rates
up to 192kHz, and is sample rate converted
to 96kHz automatically. Either channel, or a
sum of both, can be selected to drive the
subwoofer, and both are passed on to the
digital output.
The DSP engine provides the system volume
control, low-pass filtering, parametric
equalisation, and phase alignment for the
subwoofer, as well as high-pass filtering bass
management options for the analogue and
digital outputs. It also provides non-invasive
excursion limiting to protect the drivers.
The DSP system generates three sets of outputs.
In addition to the digital output, there are
two separate D-A converters. One converter
provides the analogue outputs, while the
other feeds a 400W Class-D power amplifier
connected to the loudspeaker(s).
The analogue and digital outputs are always
available and can be formatted to provide
either full range or high-pass filtered signals,
which can be used for satellite speakers or other
destinations. The output level can be fixed, or
follow the system volume control setting.
An optional remote control is available to
control the settings and volume of an entire
twotwo
system.
XLRs Adjust level
for optimal
conversion
24-bit
converison
at 96kHz
AES3 XLR or RJ45
32-192kHz
Sample rate
conversion
to 96kHz
Volume,
roll-off, PEQ,
phase and
protection
Conversion
to analogue
Power amp
Analogue
Inputs
Gain
Stage
A/D
DSP
DAC
AMP
SRC
Digital
Input
DAC XLRs
Analogue
Outputs
AES3 XLR
and RJ45
Digital
Output
Subwoofer