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DAC III
Users
Manual
Rev 2 (11/05)
S
M
L
IGN
AGNITUDE
I
:
NPUTS
RCA O
:
UTPUTS
O
I
:
UTPUT
MPEDANCE
B
O
:
ALANCED
UTPUT
V
C
(
OLUME
ONTROL
OPTIONAL
S
F
:
AMPLING
REQUENCY
D
F
:
IGITAL
ILTER
S
:
LEW RATE
S
T
:
ETTLING
IME
D
R
:
YNAMIC
ANGE
N
F
:
OISE
LOOR
THD+N:
S
N
R
:
IGNAL TO
OISE
ATIO
C
S
:
HANNEL
EPARATION
C
F
:
ONTROL
EATURES
1
DAC S
ADDER
PECIFICATIONS
C
, T
,
OAXIAL
OSLINK
AES/EBU, 2 MSB N
B
A
AND A
ALANCED
NALOG
3.6V RMS (10Vpp)
50
0dB
OHMS AT
7.5 V RMS (20Vpp)
):
2 dB
STEPPED ATTENUATOR
)
STEPS
32
H
384
H
K
Z TO
K
Z
16
O
TIMES
VERSAMPLING
>1000 V/
MICROSECOND
<90
NANOSECONDS
136 dBA
MEASURED
< -145 dB
.002
140 dB
>130 dB
R
EMOTE
D
ISPLAY DIM MODE
P
I
HASE
NVERT
F
O
ILTER
PTION
U
PSAMPLING
V
OLUME AND INPUT SELECT
BALANCED
ETWORK
I
NPUT
(32
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Summary of Contents for MSB Technology Platinum DAC III
- Page 1 DAC S AGNITUDE ADDER PECIFICATIONS DAC III NPUTS OAXIAL OSLINK BALANCED AES/EBU, 2 MSB N ETWORK AND A ALANCED NALOG NPUT Users RCA O 3.6V RMS (10Vpp) UTPUTS UTPUT MPEDANCE OHMS AT 7.5 V RMS (20Vpp) ALANCED UTPUT Manual 2 dB OLUME ONTROL OPTIONAL...
- Page 2 DAC III Users Manual Unique Product - a Preamp or a DAC? This product has the option to be a unique combination of a very high performance DAC and the ultimate passive preamp. It is intended to be used as both for the best possible sound in your system. Our preamp philosophy is based on the belief that from the moment analog audio is created, every transition that is made degrades the quality.
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Page 3: Block Diagram
The DAC III has many special features. The following sections discuss these features and how they work. Upsampling and filtering As MSB technology has developed, so has our DAC architecture. Our advanced digital filter now replaces the asynchronous upsampling of earlier models. The 16X Digital filter goes way beyond our older 4X upsampling. - Page 4 This new Digital Filter is available as an user installable upgrade for the Platinum DAC, Platinum DAC Plus, Platinum DAC II, as well as the Reference CD Station II. This filter is standard equipment in our Platinum DAC III and Reference CD Station III. The performance of this new Digital Filter is amazing. Immediately you’ll notice the lack of fuzziness around voices and instruments of...
- Page 5 DAC chips, but in combination with our high resolution 24 bit Second Generation, or Signature DACs the problem is very apparent. The sound becomes muddy, veiled and un-involving when using any off the shelf digital filter. To counter this problem the MSB 16x Digital Filter does it’s filtering in one filter stage that raises the sampling rate by 16.
- Page 6 Loading N Loading custom 16x Digital Filter Firmware will permanently change the operation of your DSP. MSB Technology can configure custom software for your DSP to meet virtually any requirement. Playing a CD track containing the new firmware will erase the current software...
- Page 7 precaution is faithfully observed. The firmware update process takes about 20-30 seconds and you MUST NOT INTERRUPT THE POWER TO THE PLATINUM while the new firmware is loading. You must wait for the message after the Firmware Update before interrupting your Platinums power. If the power to the Platinum is interrupted during a firmware update you will have to return your 16x Digital Filter Board to MSB for reprogramming.
- Page 8 Front Panel Controls Frequency and Volume Display – The actual sampling frequency of the incoming signal is displayed. This is not the normal display of the frequency reported by the decoder, which, for example, would always read 44.1 kHz even if the transport was playing at 44.3 kHz. The MSB frequency counter displays actual frequency so don’t be surprised if some lower cost DVD transports fail to produce an accurate playback speed.
- Page 9 remove the volume modules from the DAC III so they will not interfere with the operation of the MVC. Rear Panel Details Analog Input – A balanced analog input is provided. It is passed through to both the single ended and balanced outputs when selected. (As well as the volume control if installed).
- Page 10 Analog Outputs Balanced – The balanced audio outputs are the preferred output format for those customers with a balanced system. As the PLATINUM is fully balanced, both the inverted and non-inverted outputs are generated directly by separate DACs and sent to the balanced outputs without filtering, buffering or any analog circuits that could color the music.
- Page 11 Input Board Volume Modules Digital Filter Board With Volume Modules Installed (above) DAC Modules Change the fuse - Remove the cover of the Platinum. Now the power supply must Channel 1 selected be separated from the DAC. Each side panel is attached to both the top DAC part (Fronts) and the lower Power supply part.
- Page 12 Removal or Installation of the volume modules - The volume modules can be plugged in, or unplugged from the Platinum mother board. They are held in place with two plastic snaps which can be released by pinching together. The boards are automatically detected, so when unplugged the DAC will output the same level signal as it would with them plugged in at 0 dB.
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