Roland SRA-200E Quarter-inchPhone Type Unbalanced, Quarter-inchTRS Phone Type Balanced

Models: SRA-200E

1 18
Download 18 pages 55.1 Kb
Page 10
Image 10
Quarter-inch Phone Type (Unbalanced)

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.

21

3

T

R

S

HOT COLD GND

21

3

T

R

S

HOT COLD GND

Quarter-inch Phone Type (Unbalanced)

Quarter-inch TRS Phone Type (Balanced)

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.

10

Page 10
Image 10
Roland SRA-200E Quarter-inchPhone Type Unbalanced, Quarter-inchTRS Phone Type Balanced, About the PC Limiter Circuits