Thank you for your purchase of the DAC-60 Digital Input Board. This option board adds digital input jacks
to your preamp or integrated amp unit. It mounts into an expansion slot on the unit’s rear panel, allowing
the unit to play digital source signals. The board provides a USB jack for easy connection to a personal
computer, and an optical ber jack and coaxial cable connector that accept signals from CD players, TVs,
and other digital sources. Operation of the board—including switching among the inputs, and displaying
the sampling frequency—varies according to the host unit. Please review the documentation that came
with your preamp or integrated amp before using this board.
Included Accessories: “USB Utilities 3” CD and “USB Utilities 3” Setup Guide
INSTRUCTION MANUAL
820-3341-00 (B1) Printed in JapanE212.3X
Digital Input Board DAC-60
Using the DAC-60
❶Turn off your preamp or integrated amp.
❷On the rear panel, remove the sub panel of the slot you
wish to use
(
Fig. 1
).
◆Retain the sub panel for future use.
❸Insert the option board into the slot, along the slot’s
upper and lower guide rails ( Fig. 2 ). When the rear
of the board reaches the internal connectors, give a
gentle push to snap the connection into place, so that
the front of the board becomes ush with the panel.
❹Secure the board by screwing in the top and bottom
screws.
Be sure to turn off power to the unit before inserting or removing the board. Leaving the power on
may damage the unit.
Do not put objects or insert ngers into the slot. Putting anything into the slot, other than the board
itself, may damage the unit.
Do not touch the board’s components, soldering, or connector pins, as doing so may cause damage.
When handling the board, hold it by its panel face or along the outside of the printed circuit area.
Using your ngers, rmly tighten the mounting screws to secure the board to the panel. Be sure to
tighten securely, as looseness may result in damage.
Do not use electrical contact enhancers or conductivity agents on inputs jacks and connectors, as
these may cause failure, and lead to a serious accident.
Sampling-frequency display when installed in a C-2120, E-600, E-470, E-370, E-270…
If a DAC-60 mounted in any of the ampliers named above and used with any of the following
samplingfrequencies,itwillplaythesefrequenciescorrectlybutwilldisplayavalueof192.0kHz.
PCM:352.8kHz,384kHzDSD:2.8MHz,5.6MHz,11.2MHz
Option-board limits when installing in an E-307, E-308, C-245, or CX-260…
While the above-named units have two expansions slots, they do not have sufcient power to
supporttwo digital inputsboards;soyou can onlyinstall a maximumof one digitalinput board
into these units. You may, however, install a DAC-60 alongside an analog input board (AD-50,
AD-30,AD-20,AD-10,AD-9).
Do not run multiple cables (USB, coaxial, balanced, and line-level) between the same source device and
your amp unit at the same time. This may create a ground loop, causing humming or other noise.
Cable Connections
60
COAXIAL Accepts 75-ohm coaxial digital cable.
OPTICAL Accepts JEITA-compliant optical ber cable.
When connecting to a TV, set the digital audio output to PCM.
USB Port Before connecting to your computer, install the software from the included USB Utilities 3
CD, as explained in the included documentation.
Use a USB 2.0 cable with a Type B connector. The cable length should not exceed 2
meters (39 in).
USB connection requires bus power (minimum 200 mA).
USB
Optical
Coaxial
Selecting the Input Signal
Input Connector Specications
Amp Unit How to Select the Input Signal
Includes DAC switching function. Selectusingtheamp’sDACswitchingfunction.
Lacks DAC switching function.
Power-offor disconnect thedigitalsourcedevicesyoudonotwish to
use.TheDAC-60automaticallyselectsfromtheremainingdevices.
Note:Ifmultiplesignalsarebeinginput,theDACautomaticallyselects
one,inthe following orderofprecedence:❶Coaxial,❷Optical,
❸USB.
Format USB2.0high-speed(480Mbps)compliant
Sampling Frequencies
DSD
2
.
8
MHz,
5
.
6
MHz,and
11
.
2
MHz
/
1
-
bit(
11
.
2
MHzisASIOonly)
PCM
32
kHzto
384
kHz
/
32
-
bit
Cable USB2.0connectorwithtype-Bplug(lengthupto2meters)
Format JEITACP-1212compliant
Sampling Frequencies PCM
32
kHzto
96
kHz
/
24
-
bit
Cable JEITA-compliantopticalber
Format IEC60958AES-3compliant
Sampling Frequencies PCM
32
kHzto
192
kHz
/
24
-
bit
Cable
75
-
ohmdigitalcoaxial
How to select the input signal varies depending on whether your amp includes a DAC switch or not.
Guide rail
Fig. 1 Fig. 2
Sub
panel
board
Caution
Note
Caution
Plug
Remove the plug’s protection cap.
Retain the protection cap for future use.
Push to open
shutter.
Align the plug with
the port and push
firmly in.
Optical fiber
cable
Remove the USB dust cover.
Retain the dust cover for future use.
Align the plug with
the port and push
firmly in.
USB port ACCUPHASE LABORATORY, INC.
YOKOHAMA, JAPAN
