Specifications

10
MSB PRO I2S Connector
BNC – Same as Coaxial but with a BNC connector.
Another digital input.
Balanced digital – The AES/EBU Professional
input is the preferred input. The balanced nature of
this input allows great cable lengths as well as total
noise immunity. Limited to 384 kHz, 24 bit data.
MSB PRO I2S – The MSB PRO I2S uses CAT-6
cabling. It provides an input for use with other
MSB products. It can handle 8 channels of data
up to 384 kHz and 32 bits. The DAC IV can select
which audio channels to decode. This interface
also outputs the clock to keep the transport in sync.
Aux 1 and 2 – These are all purpose expansion slots. They can be congured as a USB input, MSB PRO I2S Input, MSB Network or extra
XLR or RCA digital inputs. It can also become a second analog input. They will also accommodate anything new that comes along.
Clock Interface
After years of experimenting with inputting and outputting clocks we now strongly recommend not doing this. A low jitter clock must be
physically close to the DACs. There is no lower jitter clock than the MSB clocks, and even if there were, once the clock was transmitted
from an external box so much jitter would be introduced in the cable that the clock would be marginal at best. So we are condent that
no benet would be gained from an external clock.
A different set of problems exist with outputting clocks. A paradox is created as a source needs a clock to transmit data, but when
the DAC sees the data, which can be at any sample rate, it adjusts the clock to match. No source can handle its clock adjusted on the
y. Only the MSB Transports can handle this as the PRO I2S interface is smart and negotiates the proper clock to be sent back to the
transport. But, if you do have a need to access this clock, it can be done.
Within the MSB Network connection is a clock interface that allows multiple Platinum products to be synchronized, allows the Plati-
num Clock to be input or output. The interface is a LVDS format clock interface with a signal level of 250 mV pp.
Pin Identication - The pins shown in the gure below are identied as follows:
1. M Clock + (Positive side of balanced Master Clock)
2. M Clock - (Negative side of balanced Master Clock)
Clock Frequencies - The clock can be selected to be either an input, output or turned off in the setup menu. The output frequencies are
as follows:
· 44.1, 88.2 or 176.4 kHz sampling frequency source outputs or inputs a clock frequency of 22.5792 MHz
· 48, 96 or 192 kHz sampling frequency source outputs or inputs a clock frequency of 24.576 MHz.
The MSB PRO I2S Network
One of the most powerful features of MSB products is the PRO I2S network. Most
new MSB products have a PRO I2S connection available. The MSB PRO I2S has the
following capability:
• Works with standard CAT6 cable
• Simultaneous transmission of 8 audio channels with 32 bit resolution at 384 kHz
sampling rate.
• MSB CAN Interbox communication Bus (for communications between
boxes)
• Low Jitter master clock distribution from the DAC back to the Transport.
This network is our answer to 384 kHz audio transmission and multichannel transmission
in the same package. We provide network
outputs on our own transports and offer
a source upgrade to your transport as
well. With multichannel sources, up to
8 channels of decoded data can be
sent through one wire to separate
DACs. CAT6 wire is very convenient
as it has become the standard for
all computer networks. Several
cables are available for connecting
MSB transports to the Platinum Line
including CAT6 cable at any length
up to 80 feet.