Owner's Manual
13
NOTE: e Balanced (XLR) Output pin assignments adhere to
the AES (Audio Engineering Society) “Pin 2 = hot” standard. e
XLR male outputs carry the following pin assignments:
Pin 1: Signal ground
Pin 2: Signal + (non-inverting)
Pin 3: Signal – (inverting)
Connector ground lug: chassis ground
Refer to the operating manuals of your balanced-input power
ampliers to verify that the pin assignments of their input
connectors adhere to this standard (Classé power ampliers are
compliant). If your ampliers are not compliant, it may not pose a
problem, but ask your Classé dealer for assistance.
13 Ethernet Connector
e Ethernet connection is used to enable streaming of audio using Apple’s
AirPlay or DLNA. is connection also supports IP control for using the
Classé App with Android and iOS devices and/or a home automation
system to control the Delta PRE via your home Network.
14 Phono Input
e Delta PRE supports 1pr of RCA type connectors labeled Phono
R/L dedicated to a phono input and supporting high output MM and
both high and low output MC type phono cartridges. For instructions
on setting gain and loading for MM/MC type phono cartridges, see the
section on Phono Setup.
Two RCA shorting pins are included in the Accessories pack. ese
should be inserted into the “Phono” inputs if they are not being used.
ey prevent any noise from being conducted through these inputs and
amplied by the high gain circuitry, potentially coupling with other audio
signals in the preamp.
15 Main Power On/Off Switch
is switch connects and disconnects the Delta PRE from AC.
16 AC Power Cord Input (AC IN)
e detachable three-conductor AC power cord and the socket into
which it connects conform to rigorous standards developed by the IEC
(International Electrotechnical Commission).
Danger! Your Delta PRE contains potentially dangerous voltages and
current capabilities. Do not attempt to open it! There are no
user-serviceable parts inside. All service must be referred to a
qualified authorized Classé dealer or distributor.
17 HDMI Inputs / Output (Optional)
An optional 4K-capable HDMI module is available for the Delta PRE.
It adds 4 HDMI inputs and 1 HDMI output to the unit. Please contact
your Classe Dealer for more information and to purchase this module.
18 Phono Ground Lug
Use this lug for grounding your turntable as necessary.