Roland SRA-200E - Manual (Page 10)

Precautions When Connecting and Turning on the Power
● To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off
the power on all devices before making any connections.
● Do not connect anything other than speakers to these terminals.
● Connect speakers rated at 4 ohms or higher; or if using the BTL connection (bridging), 8 ohms or higher.
● Using an unbalanced standard phone plug and XLR-3-31 type connector at the same time shorts the XLR-3-31
connector's pin 1 (GROUND) and pin 3 (COLD), which may cause problems, including noise and the inability to get
sufficient volume. Use caution when connecting with unbalanced standard phone plugs.
● Although the SRA-200E is protected from damage by the PC Limiter Circuits, take care not to connect speakers
rated at less than 4 ohms impedance or to allow shorting in the speaker cables.
(PC Limiter Circuits
→
see below)
● Once the connections have been completed, turn on power to your various devices in the order specified. By turn-
ing on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices.
(reverse the order when shutting off the equipment)
Connected Devices
→
SRA-200E
● To avoid the risk of electric shock, do not touch the terminals while the amp is on.
<About the PC Limiter Circuits>
If the speaker cable's + and - wires are shorted, or if speakers rated at less than 4 ohms impedance are connected,
the PC Limiter Circuit is activated in order to protect the speakers, and the sound may be cut off or distorted.
<About the Limiter>
The SRA-200E also features a Limiter Circuit. This monitors the power amp's output signal and protects against
noise and damage to speakers resulting from sudden peaks in the input.
T
R
S
1 2
3
COLD
GND
HOT
Quarter-inch TRS Phone Type (Balanced) Quarter-inch Phone Type (Unbalanced)
T
R
S
1 2
3
COLD
GND
HOT
10