Kramer 900XL - User Manual

To Next Page

900XL Quick Start

P/N:

2900- 30128 1 QS

Rev:

Scan for full manual

900XL Quick Start Guide

This guide helps you install and use your 900XL for the first time.

Go to www.kramerav.com/downloads/900XL to download the latest user manual and check if firmware

upgrades are available.

Step 1: Check what’s in the box

900XL Stereo Power Amplifier

4 Rubber feet

1 Bracket set

Power adapter (12V DC)

1 Quick start guide

Step 2: Get to know your 900XL

Feature

Function

12V DC Connector

+12V DC for powering the unit

RS-232 Tx Rx G Terminal Block Connector

Connect to PC

L+ L– R+ R– OUT Terminal Block Connector

Speaker output

IN 2 RIGHT RCA Connector

Connect to stereo audio right input of source 2

IN 2 LEFT RCA Connector

Connect to stereo audio left input of source 2

IN 1 3.5mm Mini-jack Connector

Connect to stereo audio input of source 1

INPUT 1 Button

Selects the input from audio source 1

INPUT 2 Button

Selects the input from audio source 2

VOLUME – Button

Decreases output volume

VOLUME + Button

Increases output volume

OVER LED

Illuminates red when device is overheating and mutes output

ON LED

Illuminates green when receiving power

Step 3: Mount 900XL

Install 900XL using one of the following methods:

• Attach the rubber feet and place the unit on a flat surface.

• Fasten a bracket (included) on each side of the unit and attach it to a flat surface

(see www.kramerav.com/downloads/900XL).

• Mount the unit in a rack using the recommended rack adapter

(see www.kramerav.com/product/900XL).

• Ensure that the environment (e.g., maximum ambient temperature &

air flow) is compatible for the device.

• Avoid uneven mechanical loading.

• Appropriate consideration of equipment nameplate ratings should be

used for avoiding overloading of the circuits.

• Reliable earthing of rack-mounted equipment should be maintained.

Need help?

Do you have a question about the Kramer 900XL and is the answer not in the manual?

The Kramer 900XL is a stereo power amplifier designed for audio signal amplification and distribution. This quick start guide provides essential information for its initial setup, operation, and maintenance.

Function Description:

The 900XL serves as a stereo power amplifier, capable of amplifying audio signals from various sources and outputting them to speakers. It features multiple audio inputs, including a 3.5mm mini-jack for stereo audio input (Source 1) and RCA connectors for stereo audio input (Source 2). The device also includes a speaker output via a terminal block connector, allowing for direct connection to passive speakers. For control and integration into larger systems, the 900XL is equipped with an RS-232 port, enabling communication with a PC or other serial controllers. Front panel buttons provide direct control over input selection and volume adjustment. An important safety feature is the OVER LED, which illuminates red to indicate overheating and mutes the output, protecting both the amplifier and connected speakers. The ON LED indicates that the unit is receiving power.

Important Technical Specifications:

Power Input: +12V DC via a dedicated connector.
Audio Inputs:
- IN 1: 3.5mm Mini-jack for stereo audio (Source 1).
- IN 2: RCA connectors (LEFT and RIGHT) for stereo audio (Source 2).
Audio Output: L+, L-, R+, R- Terminal Block Connector for speaker output.
Control Port: RS-232 Tx, Rx, G Terminal Block Connector for serial communication.
Front Panel Controls: INPUT 1 button, INPUT 2 button, VOLUME - button, VOLUME + button.
Indicators: OVER LED (red, for overheating/mute), ON LED (green, for power).
Mounting Options: Can be placed on a flat surface with rubber feet, attached to a flat surface with included brackets, or rack-mounted using a recommended rack adapter.

Usage Features:

Input Selection: Users can easily switch between audio sources 1 and 2 using the dedicated INPUT 1 and INPUT 2 buttons on the front panel.
Volume Control: Output volume can be adjusted incrementally using the VOLUME + and VOLUME - buttons.
Serial Control: For advanced integration, the 900XL can be controlled via RS-232 serial commands from a PC, touch screen system, or other serial controller. Kramer's control software, available for download, facilitates this.
Output Level Adjustment: In cases of output distortion not correctable by volume controls, a LEVEL switch (H to L) on the underside of the unit allows for further adjustment of the output.
Overheat Protection: The OVER LED provides a visual warning and automatically mutes the output if the device overheats, preventing potential damage.
Mounting Flexibility: The device offers versatile mounting options, including desktop placement, surface mounting with brackets, or professional rack installation, accommodating various setup environments.
Quick Start Guide: The included quick start guide simplifies initial setup, covering unpacking, identifying components, connecting inputs/outputs, and basic operation.
Comprehensive Manual: A full user manual and firmware upgrades are available online, providing detailed information and ensuring the device remains up-to-date.

Maintenance Features:

Firmware Upgrades: The availability of firmware upgrades online allows for continuous improvement and bug fixes, ensuring optimal performance and compatibility.
Safety Guidelines: The manual emphasizes important safety instructions, including using only the supplied power cord, disconnecting power before installation, and avoiding user-serviceable parts.
Environmental Considerations: Users are advised to ensure the operating environment (e.g., ambient temperature, airflow) is compatible with the device to prevent overheating and ensure longevity.
Mechanical Loading: Recommendations are provided to avoid uneven mechanical loading, especially when rack-mounting, to maintain the device's structural integrity.
Earthing: Reliable earthing of rack-mounted equipment is highlighted as crucial for safety and proper operation.
Cable Recommendations: Kramer recommends using their specified cables for optimal performance and to achieve specified extension distances, minimizing potential damage from third-party cables.
Cleaning: While not explicitly detailed in the quick start guide, general electronic device maintenance practices, such as keeping the unit free from dust and debris, would apply.