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General| Type | Power Amplifier |
|---|---|
| Channels | 2 |
| Output Power (Bridge 8 ohms) | 900 W |
| THD+N | < 0.1% |
| Total Harmonic Distortion | < 0.1% |
| Signal-to-Noise Ratio | > 100 dB |
| Input Sensitivity | 1.4 V |
| Voltage Gain | 32 dB |
| Crosstalk | > 70 dB |
| Damping Factor | > 300 |
| Output Power (4 ohms) | 450 W |
| Input Impedance | 20 kOhms balanced |
| Frequency Response | 10 Hz - 40 kHz |
| Connectors (Input) | XLR |
| Connectors (Output) | Binding Posts, Speakon |
| Power Requirements | 120V |
| Cooling | Variable speed fan |
| Dimensions | 88.1 mm x 483 mm x 421.5 mm (3.47" x 19" x 16.6") |
Details on unpacking the amplifier, included accessories, and the warranty period starting from the date of purchase.
Instructions for proper installation, including ventilation requirements and temperature considerations for optimal operation.
How to use the mains switch for powering the unit on/off, including soft-start function.
Explains the Protect LED, indicating activated protection circuits like thermal overload or short-circuit.
Describes the Limiter LED, signaling when the dynamic limiter is active due to clipping or maximum capacity.
Details the -30dB and -10dB LEDs indicating amplifier modulation levels and their behavior with signal changes.
Information about the Power LED, confirming the unit is on, and troubleshooting steps if it doesn't light.
Connects external signal sources using electronically balanced inputs with screwlock connectors for secure connections.
Adjusts the amplification level for each power amp channel to prevent distortion, with recommended settings.
Selects the amplifier's operating mode, including Dual, Parallel, and Bridged modes for different channel configurations.
Attenuates low bass audio signals with selectable cut-off frequencies for different output types.
Details connecting speaker cables to output jacks, including warnings about high voltages and polarity for different models.
Specific connection requirements for bridged operation on PA2450L/PA4150L, including load impedance and input signal.
Explains integrated transformers for 50V, 70V, 100V outputs, mixed operations, and cable loss reduction strategies.
Guidance on replacing the mains fuse, emphasizing using identical types and contacting service if it blows repeatedly.
Instructions for checking the voltage selector setting against local mains voltage and the caution about user-serviceable parts.
Recommendations for balanced cables for LF-signal connection and examples for XLR and phone jack wiring.
Provides tables for determining power supply and cabling needs based on operational states and output power.
Explains how power drawn from the mains is converted to heat and how to calculate resulting temperatures for rack-shelf systems.
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