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Pyramid PB450PX User Manual

Pyramid PB450PX
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Pyramid PB450PX Specifications

General IconGeneral
Channels4
RMS Power at 4 Ohms45W x 4
Bridged RMS Power at 4 Ohms90W x 2
Total RMS Power180W
Signal to Noise Ratio90 dB
Minimum Impedance Unbridged4 Ohms
Minimum Impedance Bridged4 Ohms
Frequency Response20Hz - 20kHz
Low Pass Crossover Frequency80 Hz
High Pass Crossover Frequency80 Hz
Bass Boost0/6/12 dB
Bass Boost Frequency45 Hz
Fuse Rating20A
Signal-to-Noise Ratio90 dB
Input Sensitivity200mV-6V
Low Pass Filter80 Hz
High Pass Filter80 Hz
Impedance4 Ohms

Summary

Introduction

Features

Power On LED

Confirms correct power status when illuminated.

Bridging Capability

Allows the amplifier to be bridged into a single high-power channel.

Input Gain Control

Adjusts the amplifier's sensitivity to match the source unit's output level.

Bass Boost Control

Enhances low-frequency response, adjustable up to 18dB at 60Hz.

Treble Boost Control

Enhances high-frequency response, adjustable up to 12dB at 10KHz.

Speaker Terminals

Gold-plated terminals for optimal conductivity and support for 2-4 ohm loads.

Mute Turn On Circuit

Features an anti-thump delay circuit to prevent audible noise during power-up.

Short Circuit Protection

Protects the amplifier from damage due to input overload, speaker shorts, or overheating.

Installation

Electrical Connection

Stereo Input Connection

Connects the amplifier's low-level RCA inputs to a car stereo or equalizer.

Mono Input Connection

Explains using a Y-adaptor to feed a single signal to both inputs for mono operation.

Stereo Speaker Connection

Details connecting left and right speakers to the respective output terminals.

Mono Speaker Connection

Details bridging for mono operation, specifying impedance requirements for stable performance.

Power Connection

Guides connecting the B+12V, GND, and Remote poles to the vehicle's battery and stereo system.

Testing and Specifications

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