Page 2 - Introduction; English; IMPORTANT NOTICE FOR
Introduction English Thank you for purchasing a Yamaha P4500/3200/1600 series power amplifier. This series of audio amps was developed from Yamaha's wealth of experience in building PAequipment and its tradition of careful attention to every detail of circuit design. These ampsfeature high power and...
Page 3 - Precautions; Contents
Precautions 1. Avoid excessive heat, humidity, dust and vibration.Keep the unit away from locations where it is likely to beexposed to high temperatures or humidity — such asnear radiators, stoves, etc. Also avoid locations whichare subject to excessive dust accumulation or vibrationwhich could caus...
Page 4 - Controls and Functions; Front Panel
2 Controls and Functions ■ Front Panel TEMP PROTECTION POWER ON OFF A B CLIP SIGNAL 6 1 2 3 4 5 –dB ∞ 0 ∞ 0 40 30 20 15 10 3 6 25 40 30 20 15 10 3 6 25 EEEngine 1 POWER switch and indicatorThis is the main POWER switch. Press to power ON theamplifier. Press again to power OFF. The POWERindicator lig...
Page 5 - Rear Panel; • STEREO, PARALLEL mode; ) jacks of CHANNELS A and; • Phone jack; They are wired tip–hot (; • Barrier strip
3 ■ Rear Panel INPUT SPEAKERS CHANNEL B CHANNEL A CHANNEL B CHANNEL A G G (BRIDGE)(PARALLEL) BRIDGE STEREO PARALLEL STEREO BRIDGE MAX. OUTPUT 450W/4 Ω (STEREO) MAX. OUTPUT 900W/8 Ω (BRIDGE) (STEREO)4-8 Ω /SP (BRIDGE)8-16 Ω /SP 3 2 1 4 3 SPEAKERS terminalsFor polarity in each mode, refer to the follo...
Page 6 - volume control to adjust the; SPEAKER IMPEDANCE; . In BRIDGE mode it is 8; STEREO mode connections; PARALLEL mode connections; BRIDGE mode connections; and
4 ■ Modes: STEREO/PARALLEL/BRIDGE BRIDGE modeIn this mode, the CHANNEL A input signal will beoutput from the BRIDGE output jacks. In this case, use the front panel (channel) A volume control to adjust the volume. ■ SPEAKER IMPEDANCE In STEREO and PARALLEL modes, the minimum load(=speaker) impedance ...
Page 7 - Caution for Speaker Connection; Turn off the POWER switch.; • Speaker fuse; ) in stereo and 880 W; : Speaker’s nominal impedance; • Speaker cable
5 Caution for Speaker Connection 1. Turn off the POWER switch. 2. Remove the cover attachment screw(s) and remove theprotective cover from the speaker terminals. Screw 3. After removing approx. 10 mm of insulation from theends of the speaker cables, pass the bare ends of thespeaker wires through the...
Page 8 - Rack Mounting; Mounting in an EIA standard rack; Yamaha provides an optional 1U-size ventilation panel VP1.
6 Rack Mounting ■ Mounting in an EIA standard rack If multiple high-power amp units are mounted in a rack with poor ventilation, the heat from the amps will cause the interiorof the amp to become very hot, causing the performance of the amps to be impaired. When mounting amps in a rack, youmust make...
Page 9 - Portable Rack Mounting; Positioning the Housed Amplifier
7 ■ Portable Rack Mounting The amplifier intakes cool air through the front panel and exhausts warm air out the rear panel. When mounting amplifiersin a portable rack, make sure the rear panel is completely open for ventilation. Front Air intake Air exhaust Completely open (Rear View) (Side View) IN...
Page 10 - Specifications; General Specifications
8 Specifications ■ General Specifications P4500 P3200 P1600 Power Output Level (Rated Power) 8 Ω /STEREO 460 W + 460 W 340 W + 340 W 160 W + 160 W 20 Hz~20 kHz 4 Ω /STEREO 620 W + 620 W 440 W + 440 W 200 W + 200 W 0.05% 8 Ω /BRIDGE 1240 W 880 W 400 W 1 kHz 8 Ω /STEREO 520 W + 520 W 370 W + 370 W 175...
Page 12 - Performance Graphs; Troubleshooting; Indicator
10 ■ Performance Graphs Mode:STEREOBoth ch DrivenRL=4 Ω , f=1kHz Mode:STEREOBoth ch DrivenRL=4 Ω , f=1kHz Mode:STEREOBoth ch DrivenRL=4 Ω , f=1kHz P1600 P3200 P4500 Output Power [W] Power Consumption [W] Power Consumption [W] Output Power [W] Output Power [W] Power Consumption [W] 1k 100 10 1 5k 1k ...