Orion 8004 - User Manual

This document is the owner's manual for the Orion 8004 amplifier, a high-performance car audio device designed for powerful and versatile sound systems. The manual provides comprehensive information on the amplifier's features, installation, wiring, settings, and troubleshooting.

Function Description

The Orion 8004 is a four-channel amplifier capable of delivering 100 Watts per channel into a 4Ω stereo load, or 200 Watts per channel into a 2Ω stereo load. When bridged, it can output 400 Watts per channel into a 4Ω mono load, with a maximum power capability of 800 Watts into 4Ω stereo (front and rear channels bridged). This amplifier is designed to be a leader in its class, offering advanced features and ease of use for high-end car audio systems.

Key features include:

• Dual Built-in Crossovers: Fully variable high-pass, low-pass, and band-pass 12dB/octave crossovers allow for precise frequency control, enabling the amplifier to be used with a wide range of speakers, from subwoofers to tweeters.
• INTELLI Bass: This feature maximizes subwoofer performance by allowing continuous adjustment of low-frequency boost from 0dB to 16dB, centered at 45Hz. It helps overcome acoustic deficiencies in the vehicle and allows users to tailor bass levels to their preference.
• Flexible Channel Operation: The 8004 supports six, five, four, three, or two-channel operation, providing versatility for various system configurations.
• Auxiliary Outputs: RCA outputs offer easy system expansion, allowing for daisy-chaining additional amplifiers without signal loss or overloading.
• Remote Gain Control (RGC-1 compatible): A dedicated port allows for remote adjustment of the amplifier's gain, which can be used as a bass level control, especially when the amplifier is dedicated to subwoofers.
• Protection Features: The amplifier is protected by a 100 Amp MAXI fuse against overcurrent situations. Thermal protection engages if the heatsink temperature exceeds 90°C (190°F) to prevent damage.

Important Technical Specifications

• Amplifier Section:
  • Power Output 4Ω Stereo: 100 x 4 Watts
  • Power Output 2Ω Stereo: 200 x 4 Watts
  • Power Output 4Ω Mono: 400 x 2 Watts
  • Remote Gain Capable: Yes
  • Distortion (20Hz to 20kHz, all channels driven at rated power): < 0.1% THD+N
  • Frequency Response: 20Hz to 20kHz ±0.25dB
  • Linear Bandwidth: 10Hz to 50kHz ±3dB
  • Signal-to-Noise Ratio at Rated Power: > 100dB
  • Damping Factor: > 200
  • Slew Rate: > 20V per µsec
  • RCA Input Sensitivity: 200mV to 5V
  • Input Impedance: 20kΩ
  • Fuse Type: (1) 100 Amp MAXI
  • Dimensions: 23.9" x 10.5" x 2.4"
  • Weight: 10 lbs.
• Crossover Section:
  • Low Pass Crossover: 2nd Order (12dB per octave)
  • Low Pass Frequency Range: 20Hz to 3kHz
  • High Pass Crossover: 2nd Order (12dB per octave)
  • High Pass Frequency Range: 20Hz to 3kHz
  • INTELLI Bass: 16dB boost

Usage Features

The Orion 8004 offers extensive control over its operation and sound output:

• Signal Input and Output Configurations: The amplifier can be configured for one or two sets of inputs using the 4 CH / 2 CH Switch. RCA outputs provide flexibility for connecting additional amplifiers, with options for "COPY" (identical signal copy), "GAIN" (buffered through gain stage, controlled by RGC-1), or "MASTER" (buffered through gain and crossover stages, controlling subsequent amps).
• Internal Crossover Configuration: The amplifier features independent low-pass and high-pass crossovers for both front and rear channels.
  • Low-Pass Crossover: Activates a 2nd order low-pass filter, continuously variable from 20Hz to 3kHz.
  • High-Pass Crossover: Activates a 2nd order high-pass filter, continuously variable from 20Hz to 3kHz.
  • High-Pass Woofers: A specific high-pass crossover setting for subwoofers, adjustable from 20Hz to 3kHz, with additional boost for improved bass output.
• Fine Tuning the Crossover Frequency: Crossover points are marked at 20Hz, 45Hz, 250Hz, and 3kHz for easy adjustment based on speaker bandwidth recommendations.
• Remote Gain Operation: The RGC-1 (not supplied) allows remote control of the rear channel levels, useful for bass control.
• Speaker Connections: Supports up to 12 gauge speaker wire.
  • Four Channel Stereo Configuration: Recommended impedance is 2Ω stereo. Crossover, output, and gain are independently adjustable for front and rear. Supports two or four-channel input.
  • Two Channel Bridged Configuration: Both front and rear channels are bridged for two-channel operation. Recommended impedance is 4Ω. Crossover and gain are independently adjustable.
  • Three Channel Stereo/Bridged Configuration: Front channels are 2Ω stereo, rear channel is a single 4Ω bridged output. Crossover, output, and gain are independently adjustable.
  • Tri-Mode Six Channel Configuration: Lowest recommended impedance is 2Ω stereo and 4Ω bridged mono. Front and rear outputs must be set for full range operation, requiring passive crossovers for components.

Installation and Setup:

The manual provides a step-by-step installation guide, emphasizing safety precautions such as disconnecting the battery, avoiding drilling into vehicle lines, and proper wire routing. It also lists necessary tools for installation.

Testing and Adjusting the System:

A detailed procedure for testing the system ensures correct wiring and functionality. The sound adjustment section guides users through setting gain levels, fine-tuning crossovers, and balancing output between different speaker types (midrange, tweeters, woofers) for optimal sound quality.

Maintenance Features

• Fuse Replacement: The amplifier uses a 100 Amp MAXI fuse. If the fuse blows, it must be replaced with the same size and type to prevent damage and maintain warranty.
• Ventilation: Adequate airflow around the amplifier's heatsink is crucial for preventing thermal shutdown. Mounting locations should be chosen to ensure at least 1" of clearance for cooling.
• Troubleshooting Tips: The manual includes a comprehensive troubleshooting table to diagnose and resolve common issues such as no output, audio cycling on/off, distorted output, poor bass response, and fuse blowing. Solutions range from checking connections and wiring to adjusting settings and replacing components.
• Warranty: The amplifier comes with a two-year warranty if installed by an authorized Directed dealer, or a one-year warranty if installed by anyone else. The warranty covers defects in workmanship and material under normal use but is void if the product is damaged by accident, misuse, neglect, improper service, or unauthorized modification. It emphasizes that proper installation is key to component reliability and optimal sonic results.