MUSEATEX IDAT-44
updates
The design of the
IDAT-44 is based on the internationally acclaimed Meitner IDAT. It utilizes
the same interpolation algorithm and features internal jitter reduction circuitry.
Design Features
- C-Lock™
anti-jitter input receiver.
- Internal switching
power supply allows operation from external 12V battery.
- Continuous Calibration
D/A conversion.
- IDAT™ interpolation
algorithm.
- Fully balanced
in the digital domain: 2 DACs/channel.
General Features
- Museatex chassis
with available black or mahogany wood side panels.
- Selectable inputs
(2): TOSLINK, Coax.
- Operation from
Wallpack (supplied) or 12V battery.
Specifications
Electrical
- Digital Filtering:
8X over sampling, DSP based intelligent design.
- Frequency Response:
20 Hz to 20 KHz, +0,-0.5 dB.
- Resolution:
18 bits.
- Jitter: Less
than 10pS. No periodic jitter.
- Inter-channel
difference (dB level/Ratio): 0.10 dB or better.
- Noise, optical
and electrical inputs (30 KHz BW) : Less than 90dB.
- Inputs: TOSlink
optical, 75 Ohm coaxial.
- Outputs: Stereo
(RCA) 300 Ohms.
- Output Level:
2.5V RMS.
Physical
- Dimensions:
3-1/4" X 7-1/4" X 13".
- Weight: 6 Lbs.
Updates
The Plus
Update
This D/A, was designed to be a Bidat with a single input frequency and a less
expensive DAC chip. The Plus update for this DAC is very like that of the
Bidat Plus update. It addresses all the same issues and allows it to lock
to most input frequencies. The original circuit board is retained but many
of the parts are replaced or removed. Below is a list of updates and their
advantages that make up this comprehensive upgrade.
Class A:
All the analogue circuitry is run in Class A to eliminate zero crossing error
and increase linearity.
The latest
devices: The amplifying stages do not use the latest devices but rather ones
that are more immune to the high frequency noise that comes from the DAC chip.
This noise is just outside the audible range and is commonly filtered out after
the first amplifying stage but it has already done some damage in terms of
upsetting the amplifier itself.
Analogue
Filters: The filters are changed to work before and after the amplifying
stage and are relaxed to allow a little more high frequency energy to pass.
Power Supply:
The power supply is enhanced at every opportunity. This is always one of the
single most critical portions of any circuit. It is where all the energy for the
circuitry comes from and must be pure and abundant. Addition of further
regulation in critical areas also helps to reduce jitter.
Battery
Power: In the future we are considering offering a battery supply for this
DAC as it makes such a tremendous difference to the sound.
The ěPlusî update is not to be taken lightly. In direct comparison to other DACs
it rises directly to the top. Even compared to the Bidat it is more of a flavor
difference than which is better or worse. For those who already own the IDAT-44
this is a natural progression. Itís already an old friend at home in your audio
system and the upgrade obviates the hassle of shopping for a new unit not to
mention spending thousands more for lesser sound quality. For those that have
bought one used the same rational applies but from a different point of view.
The price for the Plus upgrade is $350.USD.
Updates are
performed on Meitner and Museatex products at our Calgary facility.
Email us at john@museatex.com or call
(403) 968-1400 for more information.