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Yamaha P2100 User Manual

Yamaha P2100
20 pages
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MANUAL

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Yamaha P2100 Specifications

General IconGeneral
Input Sensitivity0.775 V
TypeStereo Power Amplifier
Damping Factor200
Speaker Load Impedance4Ω - 16Ω
Frequency Response10Hz - 50kHz (±0.5dB)

Summary

About This Manual

Scope of the P2100 Manual

Defines the P2100 as a system-oriented amplifier and the manual's scope.

Manual Organization Overview

Recommends reading the manual and outlines its sections and their content.

P2100 Front Panel Overview

Front Panel Indicators and Controls

Identifies front panel components: Thermal Warning Indicator, Power Indicator, Input Attenuators, Power Switch.

Rack Mounting Guidelines

Provides rack-mounting dimensions and recommendations for portable racks.

P2100 Rear Panel Details

Rear Panel Input/Output Connectors

Identifies rear panel connectors: Input Connectors, Input Polarity Switch, Output Connectors, AC Power Cord, Fuse.

Input Polarity and Parallel Connection Notes

Details input impedance, paralleling inputs, and transformer placement.

AC Power Cord and Fuse Specifications

Covers AC power requirements and fuse details for different regions.

Amplifier Introduction and Features

P2100 Introduction and Design

Introduces the P2100 as an advanced, high-accuracy sound amplifier.

Calibrated Input Attenuators Explained

Explains the log-linear, 22-step dB-calibrated input attenuators.

Input/Output Connection Flexibility

Details XLR and phone jack inputs, polarity switch, and binding post outputs.

Monaural Operation Capability

Describes converting the P2100 to a 'super amplifier' for mono use.

Key Performance Aspects

Highlights P2100's performance: low distortion, high damping factor, wide frequency response.

Mechanical Design and Reliability

Discusses rugged construction, heat sinks, and protection circuits.

General Performance Specifications

Power Output and Distortion Ratings

Lists detailed specifications for power output and total harmonic distortion.

Frequency Response and Input Sensitivity

Details frequency response limits and required input levels for rated output.

Damping Factor and Rise/Slew Rates

Explains damping factor, rise time, and slew rate specifications.

Hum, Noise, and Channel Separation

Provides specifications for hum, noise ratio, and channel separation.

Power Requirements and Protection Circuits

Lists power requirements and refers to protection circuit discussions.

Dimensions, Weight, and Indicators

Details physical dimensions, weight, and front panel indicators.

Monaural Mode Specifications

Monaural Power Output and Clipping

Lists power output and clipping specifications for mono operation.

Monaural Distortion and Frequency Response

Details distortion and frequency response for mono mode.

Monaural Input Sensitivity and Impedance

Specifies input sensitivity and impedance for mono operation.

Monaural Damping Factor and Slew Rate

Provides damping factor and slew rate for mono mode.

Performance Graphs: Bandwidth, Impedance, THD

Power Bandwidth vs Load Impedance Graph

Graph showing power bandwidth relative to load impedance.

Load Impedance vs Output Power Graph

Graph illustrating output power at different load impedances.

Frequency Response vs Load Graph

Graph showing frequency response across various loads.

THD vs Output Power (8 Ohm) Graph

Graph of Total Harmonic Distortion versus output power at 8 ohms.

THD vs Output Power (16 Ohm) Graph

Graph of Total Harmonic Distortion versus output power at 16 ohms.

Intermodulation Distortion vs Power Graph

Graph showing Intermodulation Distortion versus output power.

Damping Factor vs Frequency Graph

Graph illustrating damping factor across different frequencies.

Actual Output Impedance vs Frequency Graph

Graph showing the amplifier's actual output impedance.

Performance Graphs: Crosstalk, Phase, Power Consumption

Crosstalk (Channel Separation) Graph

Graph demonstrating channel separation performance.

Phase Response vs Frequency Graph

Graph showing phase response across frequencies.

Power Consumption and Efficiency Graphs

Graphs detailing power consumption, AC input, and efficiency.

Mono Mode Performance Graphs

Mono Power Bandwidth vs Frequency

Graph showing power bandwidth for mono operation.

Mono Load Impedance vs Output Power

Graph of output power versus load impedance in mono mode.

Mono Frequency Response vs Load

Graph of frequency response for mono operation.

Mono THD vs Power Output

Graph of THD versus power output in mono mode.

Mono Damping Factor vs Frequency

Graph of damping factor across frequencies in mono mode.

Mono Actual Output Impedance vs Frequency

Graph of actual output impedance in mono mode.

Oscilloscope Waveform Analysis

Square-Wave Responses (20Hz, 1kHz, 20kHz)

Shows oscilloscope photos of square-wave responses at different frequencies.

Sine Wave Distortion and Noise Analysis

Illustrates sine wave response, highlighting low noise and distortion.

Response into Inductive Load

Shows square-wave response into a reactive load, demonstrating stability.

Unit-Step Function Response

Displays the unit-step function response, indicating protection against DC input.

Power Output and Distortion Explained

Types of Amplifier Power Ratings

Discusses types of power ratings: peak, RMS, and continuous average sine wave power.

Rationale for High Power Amplifiers

Explains the importance of high power output based on human hearing and transient response.

Power Output at Clipping Definition

Defines clipping power output rating at 1kHz with an 8-ohm load.

Power Output Variation with Load Impedance

Describes how power output changes with load impedance and protection circuits.

Harmonic and Crossover Distortion Types

Explains harmonic distortion, THD, clipping, and crossover distortion.

Advanced Performance Characteristics

Intermodulation Distortion and Dynamic Response

Discusses intermodulation distortion and dynamic frequency response shift.

Frequency Response and Subsonic Limits

Details the P2100's flat frequency response and its intentional low-frequency limitation.

Offset Voltage and Step Function Protection

Explains offset voltage and the unit step function response for protection.

Power Bandwidth and Phase Response

Defines power bandwidth and phase response, noting their characteristics.

Channel Separation Effectiveness

Discusses channel separation and its effectiveness in stereo programs.

Key Amplifier Specification Details

Hum and Noise Performance

Discusses hum and noise levels, stating they are inaudible.

Rise Time and Slew Rate Importance

Explains rise time and slew rate as indicators of amplifier performance.

Input Impedance and Sensitivity Ratings

Discusses the P2100's high input impedance and input sensitivity.

Protection, Thermal, and Gain Characteristics

Covers protection circuits, thermal characteristics, and gain definition.

Output Impedance and Damping Factor

Discusses the P2100's very low output impedance and damping factor.

Damping Factor Mechanism Explained

Back EMF Current Flow Path

Illustrates how back EMF current flows through the amplifier's output impedance.

Distinguishing Professional vs. Hi-Fi Gear

Types of Audio Equipment Categories

Differentiates professional audio equipment from hi-fi or semi-pro equipment.

Impedance Differences and Implications

Explains impedance differences between pro and hi-fi gear and cable effects.

Impact of Cable Capacitance on Signal

Illustrates how source impedance and cable capacitance affect signal filtering.

Operating Levels and Dynamic Range

Nominal and Peak Operating Levels

Details nominal and peak operating levels for professional and hi-fi equipment.

Dynamic Range and System Noise Floor

Explains dynamic range, noise floor, and its importance in sound systems.

Audio System Dynamic Range Illustration

Diagram of Signal Flow and Levels

A diagram illustrating dynamic range through a typical audio system chain.

System Gain, Headroom, and Professional Benefits

Gain Overlap and Headroom Advantages

Explains gain overlap and headroom in professional audio systems.

Input Sensitivity Rating Differences

Discusses how input sensitivity ratings differ between devices.

Benefits of Professional Equipment Use

Lists advantages of professional equipment like balanced lines and reliability.

Typical System Gains and Losses Diagram

A diagram showing typical gains and losses in an audio system setup.

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