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Introduction
The Ultra Digital to Analogue Converter
The Meridian Ultra Digital to Analogue Converter has
been designed to reconstruct the highest possible
quality analogue audio signal from a wide range of
digital inputs. It is based on Meridian's experience and
research into digital and analogue audio over many
years.
Outputs
The Ultra Digital to Analogue Converter provides a
choice between balanced analogue outputs, using XLR
connectors, or unbalanced analogue outputs, using
phono connectors.
The output circuitry incorporates Hierarchical Converter
Technology, by MQA, which employs multiple
converters to increase temporal resolution while also
reducing noise and quantization errors. The result is a
level of performance that is unachievable with normal
DACs.
Inputs
On the input side, the Ultra Digital to Analogue
Converter provides a wide range of digital inputs to
cater for almost any digital source. It can accept signals
up to 384kHz (USB input) or 192kHz (other inputs).
Two balanced XLR digital inputs are provided, for
sources with balanced digital outputs. A balanced
SpeakerLink input is also provided, for connecting to
other Meridian sources with SpeakerLink outputs.
Two unbalanced digital inputs are provided using BNC
connectors. In addition, two digital coaxial inputs and
two Toslink optical digital inputs are provided, for
connecting to other digital sources.
The Ultra Digital to Analogue Converter provides a
network socket to connect it to a Meridian Sooloos
System, Meridian's music management platform.
A USB B-type connector is provided to allow the Ultra
Digital to Analogue Converter to be connected to a
computer system and used as an external sound card.
Audio processing
The Ultra Digital to Analogue Converter processes
signals with Meridian's exclusive apodising filter,
ensuring maximum audio quality. All lower bit-rate
signals are upsampled to 352/384kHz to allow a wider
choice of high-quality filters. Three upsampling filtering
options are provided, allowing you to choose the best
option for different types of audio material.
The Ultra Digital to Analogue Converter will
also automatically decode MQA (Master Quality
Authenticated) audio streams. When an MQA stream is
detected the front panel display will indicate MQA.
The Ultra Digital to Analogue Converter can be
configured to provide tone adjustments, as well as
balance and volume controls, for use with power
amplifiers or active analogue loudspeakers. Alternatively
it can be configured for fixed output, for connection to
an external analogue preamplifier.
System integration
An RS232 interface provides full remote control
capability as well as the ability to configure the unit
with Meridian's innovative Windows-based graphic
configuration application.
Three programmable trigger outputs are provided for
direct control of external devices.
The Ultra Digital to Analogue Converter is supplied
with the MSR+ learning/programmable remote control,
which operates all Meridian products and includes an
extensive database of third-party products and the
capability to learn commands from existing remotes.
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