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YAMAHA
AUTHORIZED
PRODUCT MANUAL
P-2200/2201
SYSTEM AMPLIFIER
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ABOUT THIS MANUAL SCOPE The P-2200 is a system oriented amplifier, made to be used in conjunction with mixers, consoles, frequency dividing networks and speakers — those made by Yamaha or by other manufacturers. Like any power amplifier, the P-2200's performance depends on system design and installation, in addition to its own capabilities. Thus, the P-2200 Operating Manual is system oriented, describing system design parameters and installation techniques, as well as the operation and performan
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THE P-2200/2201 BRIEF OPERATING INSTRUCTIONS SECTION ONE INTRODUCTION SECTION TWO GENERAL SPECIFICATIONS SECTION THREE PERFORMANCE GRAPHS & A DISCUSSION OF SPECIFICATIONS SECTION FOUR THE DISTINCTION BETWEEN PROFESSIONAL AND HI-FI EQUIPMENT SECTION FIVE 1 IMPEDANCE 2 OPERATING LEVELS 2 DYNAMIC RANGE 4 GAIN OVERLAP AND HEADROOM 4 INPUT SENSITIVITY RATINGS 4 PROFESSIONAL EQUIPMENT ADVANTAGES SECTION SIX INSTALLATION AND DETAILED OPERATION 1 PHYSICAL MOUNTING 2 CABLING AND IMPEDANCE MATCHING ACTIO
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THE P-2200/2201 BRIEF OPERATING INSTRUCTIONS Fig. 1A - P-2200 Front Panel Fig. 1B - P2201 Front Panel A. Input Attenuators Calibrated, stepped input attenuators lower input signal levels ahead of amplification stages. B. Peak Reading Meters (P-2200 only) Meters display instantaneous (peak) power output into an 8-ohm load over a full 50dB range; "0dB" = 100 Watts into 8 ohms. C. Thermal Warning Indicator Warns of overheating before thermal protection circuit turns off the AC power. D. Power Indic
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Fig. 2A - P-2200 Rear Panel* Fig. 2B - P2201 Rear Panel* A. Input Connectors D. AC Power Cord The two XLR input connectors on each channel are For the U.S. and Canadian models, the P-2200/2201 unbalanced and are wired in parallel with each other require 117 VAC 50 or 60 Hz line (10 5 V min., 13 5 V and with the two phone jacks (tip/sleeve type). max.; 8 amps max. at 120 volts). For the Australian model: 240V AC 50 or 60 Hz. B. Input Polarity Switch For other territories' models, an internal volt
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INTRODUCTION PERFORMANCE The P-2200's performance is as impressive as its features. At a sustained output of 230 watts into 8 ohms (for each channel), there is plenty of punch to reproduce the powerful peaks essential to clean studio monitoring. High power handling also makes the P-2200 an unbeat- able choice for live rock or disco sound systems, where an amplifier can really "cook" all night long. Power alone is no virtue; the P-2200 has ultra-low distortion, less than 0.05% THD at full rated p
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GENERAL SPECIFICATIONS Phase Shift: (Refer to Figure 11. ) 20Hz to 20kHz, ±1 0 degrees. Offset Voltage: Less than ±10mV DC. Unit Step Function Response: (Refer to Figure 27.) See scope photo (Page FOUR 4) and discussion, Page FOUR 6. Thermal Specifications: Massive black anodized heat sinks are thermally Power Output Per Channel: (Refer to Figure 3. Ambient joined with the chassis, thereby utilizing the entire room temperature for tests: 25-degrees Centigrade.) amplifier as a heat sink. 200 Watt
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Controls: MONAURAL MODE SPECIFICATIONS 22-position, log-linear, detented, and dB-calibrated Power Output: (Refer to Figures 14 and 15.) INPUT ATTENUATORS (one per channel) 400 Watts continuous average sine wave power into attenuate input signal in 2dB steps from 0dB 16 ohms with less than 0.05% THD, 20Hz to 20kHz. attenuation to -34dB, then steps of -37dB, -42dB, Frequency Response: (Refer to Figure 16) -50dB, infinity; Power (ON-OFF) switch; INPUT +0dB, -1dB, 20Hz to 50kHz. POLARITY switches. T
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Fig. 9 - Actual Output Impedance vs Frequency Fig. 10 - Crosstalk (Channel Separation) Fig. 1 1 - Phase Response vs Frequency Fig. 12 - Power Consumption Fig. 13 - Peak Program Meter Accuracy (P-2200 only)
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The following are actual oscilloscope photographs made by an independent testing laboratory. The close vertical alignment of input and output traces in Fig. 21 through 23 depicts very low phase shift, so the amplifier will not alter musical wave shapes. Fig. 24 - 1,000Hz Sine Wave, shown with Highly- Magnified Noise and Distortion Components Even at full 230 watt output (8-ohms), the P-2200's distortion is so low that it is almost burried in the noise, which is at least 110dB below the sine wave
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POWER OUTPUT DISTORTION (Refer to Figures 6A-B, 7, 17, 18) The P-2200 is designed to have the lowest possible Types of Power Ratings distortion. There are many different forms of distortion, Peak power refers to the maximum undistorted power however, and comprehensive distortion ratings offer a output of an amplifier. Most amplifiers cannot sustain means to compare the performance of different their peak power ratings for long periods of time without amplifiers. external cooling fans. Because th
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Intermodulation Distortion, or I.M. is characterized UNIT STEP FUNCTION RESPONSE (Refer to Figure 27) by the appearance in the output waveform of fre- A unit step function is like the leading edge of a quencies that are equal to sums and differences of square wave; it goes up, but never comes down. The integral multiples of two or more of the frequencies response to this input indicates the output of the P-2200 present in the input signal. The difference between inter- for a DC input signal whic
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HUM AND NOISE an 8-ohm load. 230 watts into 8 ohms implies an Hum or noise from a power amplifier disrupts a output voltage of 43 volts which corresponds to +35dB program, and is irritating to a listener. Hum and noise (referenced to 0.775 volts, as used in this manual). The could be considered a form of distortion. The P-2200's voltage gain of the P-2200, with its input attenuators set hum and noise are so low that they are completely for minimum attenuation, then, is 31dB [(+35dB)-(+4dB)]. ina
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During the "overshoot" movement, the voice coil of the loudspeaker interacts with the loudspeaker's magnetic assembly to produce a voltage called "back E.M.F." (electro-motive force). This action is similar to the operation of a dynamic microphone. If the amplifier's output impedance is low, this "back E.M.F." voltage is shunted through the amplifier's output circuits to ground, and back to the voice coil. Since the path from the voice coil, through the amplifier's output circuits, and back to t
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THE DISTINCTION BETWEEN usually unbalanced, and use single conductor shielded cables with 2-conductor connectors, either standard PROFESSIONAL AND HI-FI phone plugs or phono plugs (also called RCA or pin EQUIPMENT plugs). Occasionally, the inputs of a piece of hi-fi or semi-pro equipment are professional XLR connectors which have been converted to a 2-wire, unbalanced circuit by internally connecting either pin 2 or pin 3 to pin 1. The nature of unbalanced, balanced, and floating circuitry is di
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Cables from high impedance sources (5000 ohms and its use with some hi-fi or semi-pro equipment, however up), should not be any longer than 25', even if low it's a good idea to check the specifications for each capacitance cable is used; shorten the cables if the situation. The point of this discussion, is that impedance impedance is higher. For low impedance sources of 600 and level are extremely important considerations when ohms or less, cable lengths to 100' are relatively effective. connect
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NOTE: The P-2200 actually has a maximum signal to noise ratio of 110dB (which is its dynamic range!. The SYSTEM'S Dynamic Range is limited by acoustic noise at the mic input, for the system shown, and by the maximum signal to noise ratio of the PM-700 Mixer (93dB), a very respectable figure for a high gain device. Fig. 33 - Dynamic Range in an Audio System
