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General| Channels | 4 |
|---|---|
| Frequency Response | 10Hz - 30kHz |
| THD at Rated Power | <0.05% |
| S/N Ratio | >95dB |
| Input Sensitivity | 200mV - 6V |
| Crossover Frequency | 50Hz - 500Hz |
| Bass Boost | 0-12dB @ 45Hz |
| Crossover Type | LP/HP |
| Fuse Rating | 40A x 2 |
Dual function technology optimizing power supply for audio signal and low impedance.
Provides output, ground fault, and thermal protection for the amplifier.
Bass boost and harmonic alignment for improved low-frequency reproduction.
High level input, auto turn-on, remote output, and line level output features.
Advanced power supply and current topology for improved performance and stability.
Amplifier protection features and bass enhancement controls.
Features for turn-on pop reduction, efficient power distribution, and RF filtering.
Variable and built-in crossover networks with flexible input level adjustment.
Indicates amplifier power status.
Controls for Subsonic filter and Hawkins Bass Control boost.
Switches for input source and low pass crossover frequency.
Power, ground, and remote turn-on connections.
Connections for speakers, high-level, and RCA inputs.
Adjusts input level and houses the main power fuse.
Controls for subsonic filter, bass boost, and amplifier operation modes.
Selects inputs for channels 3&4 from internal or external sources.
Main power supply fuse and +12V connection.
Connections for speaker outputs and RCA inputs for channels 1&2 and 3&4.
Controls for low pass filter adjustment and stereo input levels.
Mono subwoofer amplifier with a 12dB/octave low pass filter selectable at 60, 80, or 100Hz.
Features adjustable low pass (50-220Hz) and removable high pass SIPs.
Provides a 6dB boost at 45Hz and a 13Hz subsonic filter.
Recommendations for power and ground cable gauge based on length.
Requirements for fusing the amplifier near the battery to prevent fire.
Connects to the source unit's turn-on lead for amplifier activation.
Recommendations for high-quality signal and speaker cables for optimum performance.
Mounting the amplifier in a secure, ventilated area away from moisture.
Steps for marking, drilling, and securing the amplifier to a mounting surface.
Describes the normal 2-3 second delay for the power LED after source unit activation.
Notes the amplifier power light staying on for about a minute after turning off.
Dual-stage circuit adjusts level and gain for optimal S/N ratio.
Steps to maximize system output by setting components to reach clipping simultaneously.
Protection against overheating and short circuits via fuses and specific circuits.
Diagrams illustrating Angina amplifier connections with various radio types.
Wiring diagram for running front and rear speakers in 4-channel mode.
Wiring diagram for running front speakers and subwoofers in 3-channel mode.
Wiring diagram for running front speakers in 2-channel mode.
Wiring diagram for running subwoofers in 2-channel mode.
Diagram showing amplifier connection with a factory radio, including front/rear speakers and sub.
Diagnosing problems when no sound is produced or the power LED is not lit.
Troubleshooting amplifier output cutting on/off repeatedly.
Addressing issues with repeatedly blown fuses or protection circuit activation.
Information regarding the amplifier's limited warranty and registration.
Power output specifications for the Angina amplifier at different impedances.
THD, Signal-to-Noise, Frequency Response, Separation, Damping, Input Sensitivity, Impedance.
Low pass crossover frequencies and Hawkins Bass Control details.
Dimensions (WxDxH) for the Angina amplifier.
Power output specifications for the A4 amplifier at different impedances and modes.
THD, Signal-to-Noise, Frequency Response, Separation, Damping, Input Sensitivity, Impedance.
Low pass, high pass, and full range crossover details.
Details on the Hawkins Bass Control boost and subsonic filter frequency.
Dimensions (WxDxH) for the A4 amplifier.
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