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PLACEMENT
Place the ZR-4630 on a flat, level surface such as a table or shelf, with its weight equally distributed on each of
its four feet. Placing the weight of the amplifier on the rear or front panel for even an instant will result in
damage to the amplifier's connectors and controls.
Like any high-fidelity component, the ZR-4630 will last much longer if it is given adequate ventilation for proper
cooling. When installing the ZR-4630 in a cabinet, be sure that the cabinet’s rear is open to receive fresh air in order
to provide proper cooling (see Figure 28). If the cabinet’s design does not accommodate an open rear, install two
small “boxer fans” to provide continuous airflow into and out of the cabinet (see Figure 29). Place the ZR-4630 so
it has at least seven inches of free air space above it. If the amplifier is located on a carpeted surface, place a board
under the amplifier’s feet. Do not block the ventilation holes on the top and bottom of the ZR-4630.
44
INSTALLATION
Make sure that there is a minimum
of 7” of free air space above the
amplifier and 3” on each side for
proper ventilation.
Allow a minimum of 2” of depth
behind unit to accommodate cables
and connectors.
Figure 28
Figure 29
CONNECTING SPEAKER WIRE TO THE NILES NO-STRIP CONNECTOR
The ZR-4630 utilizes a patented no-strip speaker-wire connector. Follow the steps below to connect the speaker
wires to the connector and the connector to the ZR-4630.
1. Separate the speaker wire so that at least two inches of each conductor is free.
2. Open the no-strip connector by applying pressure to the red and black levers until you hear an audible "click".
3. Insert the negative (
–
) unstripped wire fully into the speaker-wire hole
next to the BLACK lever and the positive (+) unstripped wire into the
speaker-wire hole next to the RED lever. Squeeze the RED and BLACK
levers until you hear an audible "click", indicating that the connector
has locked onto the wire. (See Figure 30-A).
4. Insert the no-strip connector into the corresponding zoned speaker-
output socket on the rear panel of the ZR-4630. Push it down until it
locks in place. The connector only fits the socket in one position. If
the terminal does not insert completely, reverse the connector 180
degrees and re-insert. (See Figure 30-B).
Figure 30
A
B
CONNECTIONS
If the cabinet rear is not open to fresh air or if you’re using
low-impedance loads, install two “boxer fans” to provide
continuous air flow into and out of the cabinet.
Boxer Fan (55 CFM)
directly centered 2”
behind the ZR-4630.
Boxer Fan (55 CFM)
directly centered 7” on
top of the ZR-4630.
CAUTION!
When using low-
impedance speaker loads (less
than 8 ohms Nominal) refer to
Figure 29 for proper placement.