Meyer Sound Stella-188, Operating Instructions Manual

Page: 15 / 32

STELLA OPERATING INSTRUCTIONS
15
Channel Outputs (1–8)
The eight Channel Outputs deliver DC power (18 V DC) and
balanced audio to up to eight loudspeaker channels. Each
Channel Output can drive up to two Stella-4/Stella-4C loud-
speakers (or one Stella-8C loudspeaker). The Channel Out-
puts use five-pin Phoenix connectors with three pins for
balanced audio (positive, negative, and shield) and two for
DC Power (positive and negative). These pins are clearly
labeled on the Stella-188 back panel.
A single composite cable (such as the Belden 1502R) wired
for both DC power and balanced audio can be used to con-
nect to loudspeakers. Each Stella-188 comes with Phoenix
cable connectors for creating Stella loudspeaker cables. For
information on cable requirements, see “Cable Lengths and
Cable Gauges for Stella Loudspeakers” on page 16.
CAUTION: When wiring cable connections for
the Stella-188 Channel Outputs, make sure
each pin in the connector is wired correctly to avoid
damage to the loudspeaker and polarity reversal,
which can affect system performance.
Number of Stella Loudspeakers Per Stella-188 Channel
Output
Each Stella-188 Channel Output can drive the following
Stella loudspeaker configurations:
■ One or two Stella-4 loudspeakers
■ One or two Stella-4C loudspeakers
■ One Stella-4 loudspeaker and one Stella-4C loudspeaker
■ One Stella-8C loudspeakers
TIP: To connect two Stella-4s or two Stella-4Cs
to a single Stella-188 Channel Output, daisy-
chain the cable of the first Stella loudspeaker to the
second. Wire the cable connector plugged into the
first Stella with both the cable connected to the
Stella-188 and the cable connected to the second
Stella (see Figure 2 on page 17).
Current Draw for Stella-4 and Stella-4C Loudspeakers
The Stella-4 and Stella-4C draw a maximum current of 1.5 A
rms and 3.3 A peak. Their current draw is dynamic and fluc-
tuates as volume levels change. The cabling between the
Stella loudspeakers and the Stella-188 adds resistance and
hence causes a voltage drop at the loudspeakers. Because
lower voltages compromise peak SPL, and in some cases
frequency response, cable resistance should be minimized.
NOTE: When connecting a single Stella-4 or
Stella-4C to a Stella-188 Channel Output, the
total cable resistance should not exceed 4 ohms.
When connecting two Stella-4s or two Stella-4Cs to a
Stella-188 Channel Output, the total cable resistance
should not exceed 2 ohms.
Current Draw for Stella-8C Loudspeakers
The Stella-8C draws a maximum current of 3.1 A rms and
6.3 A peak. Its current draw is dynamic and fluctuates as
volume levels change. The cabling between the Stella-8C
Stella-188 adds resistance and hence causes a voltage drop
at the loudspeaker. Because lower voltages compromise
peak SPL, and in some cases frequency response, cable
resistance should be minimized.
NOTE: When connecting the Stella-8C to a
Stella-188 Channel Output, the total cable
resistance should not exceed 2 ohms.
Stella-188 Channel Outputs
!