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General| Active or Passive | Active |
|---|---|
| Limiter | Yes |
| LF Driver(s) | 15" |
| Inputs | XLR, 1/4" |
| Outputs | XLR |
| Enclosure Construction | Birch Plywood |
| Frequency Response (Hz) | 40Hz - 150Hz |
| Input Sensitivity (Vrms Sine) | 1.4 Vrms |
Caution regarding repair of SMT components due to complexity and specialized equipment.
Controls for power, circuit breaker, and status indicators.
Connectors and adjustments for audio input and output level.
Detailed electrical and acoustic performance specifications of the PSA1S.
Dimensions, materials, and finish specifications.
Visual representation of the signal flow through the PSA1S amplifier.
Comprehensive lists of components used in the PSA1S, by reference designator.
Schematic detailing the preamp's signal path, including limiter and boost.
Schematic of the power supply, detailing its components and connections.
Schematic for the microcontroller and associated protection circuits.
Log of design changes and version updates for the M1449 PCB.
List and diagrams of potentiometers and knobs used for controls.
Pinout diagrams for key ICs used in the PSA1S.
Detailed pinout and function description for the A-1014 amplifier.
Diagram showing the physical placement of components on the M1449 PCB.
Instructions for applying RTV sealant and mounting hardware.
Schematic details of AC input, filtering, and transformer connections.
Schematic of DC output voltages and regulation circuits.
Schematic of the subwoofer amp's input stage and signal processing.
Schematic of the output stage, protection, and silent ON/OFF.
Diagram showing component placement on the M1694 PCB.
Instructions for mounting heat spreaders, components, and RTV application.
Schematic showing signal path and component layout for the M1698V02.
Image identifying key external components and their labels.
List and quantity of included parts and accessories.
Critical safety warnings and required tools for eyebolt installation.
Step-by-step guide for installing eyebolts for suspension.
Specifications for safe working load limits of the enclosures.
Instructions for safely disassembling the PSA1s to access internal components.
Steps for performing the limiter update and reassembling the unit.
