Physical Description, Amplifier Front Panel

Operator Manual – SRA Series Amplifiers

Page - 5

Physical Description

Each model in the SRA-Series is 1RU, and weighs 9 pounds (2 Ch) or 10 pounds (4 Ch). They have the same physical design, though there are obvious differences between two and four channel versions. The model number is indicated on the left side of the front panel

Amplifier Front Panel

Important Safety

Instructions – 2

Introduction - 3

The SRA Series - 4

Physical Description - 5

Front Panel

Rear Panel

Installation - 6

Operation - 8

Troubleshooting - 9

1.Mounting Holes – For rack mounting.

2.Power Switch – Switches the unit on or off

3.Status LEDs – Indicate status of: Power, Standby, and Protect

4.Air Inflow Vents – Cool air enters here

5.Headphone Jack – 2075 & 2150 only

6.Channel Attenuators & LEDs – These knobs adjust the attenuation of the input signal of each channel from to 0. The Sig LED will begin to light when the output voltage reaches approximately 0.3 volts. When clipping occurs the Clip LED will light.

Spec Table - 10

Dimensions - 11

Warranty - 12

Amplifier Rear Panel

Terminals marked

with are HAZARDOUS LIVE. External wiring to these terminals/ connectors requires installation by trained personnel, or pre- manufactured cables

1.3-Pin Euroblock Input Connectors – These connectors are used for all input signals.

2.Input Switches – The HPF switch sets the High Pass Filter for each pair of channels channel to 80Hz or Off. The Gain switch sets the amplifier gain to +36dB or +26dB sensitivity. The Mode switch selects the amplifier’s operating mode (Bridge or Stereo).

3.Screw Terminal Output Connectors – These connectors provide the amplifiers output signal. In Bridge Mode, the even channel (+) connector becomes the Bridged Channel (-).

4.Standby Connector – This 2-Pin Euroblock connector provides for remote standby switching. The Power switch must be in the On position for the Standby connector to be active. This feature includes a 0.5 second turn-on delay.

5.Delay Switches – These switches provide additional turn-on delay when the Standby connector is used. The switches are additive, providing as much as 7.5 seconds of delay to the 0.5 second Standby delay.

6.Mains Connector - Connection to the mains is via this 3-Prong IEC connector

WARNING: Do not remove the mains connector ground. It is illegal and dangerous.

Rev 1.4 0306