เครื่องขยายเสียงกลางแจ้ง P2500S 2RU มีกำลังขับ 2×250 วัตต์ 8 Ohms ,ตอบสนองความถี่ที่ 20Hz – 50kHz (0dB, +0.5dB, -1dB @ 1 Watt, 8 ohms) ,with Energy Efficient Engine Technology, Continuously Variable Speed Fan, Flexible I/O
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฿25,000.00 ฿20,000.00
เครื่องขยายเสียงกลางแจ้ง P2500S 2RU มีกำลังขับ 2×250 วัตต์ 8 Ohms, ตอบสนองความถี่ที่ 20Hz – 50kHz (0dB, +0.5dB, -1dB @ 1 Watt, 8 ohms), with Energy Efficient Engine Technology, Continuously Variable Speed Fan, Flexible I/O
The Yamaha P2500S is a rack-mountable stereo power amplifier for sound reinforcement applications offering 250 watts per channel at 8 ohms and a moderate weight for its size. The P2500S has been optimized for use with Yamaha’s Club Series speakers and is equipped with a YS engagement switch, which activates proprietary circuitry that matches the output of the amplifier to the capability of the speakers; that being said, speakers from all other manufacturers are supported as well and the YS circuitry is defeatable.
Another exclusive feature of the P2500S is the EEEngine energy conservation design, which obtains the same full output that conventional amplifier designs offer, but with half the power consumption. This attribute, in conjunction with a full complement of thermal and limiting overload protection, allows for cooler, quieter operation and improved frequency response with minimized distortion. The P2500S has XLR and 1/4″ balanced inputs and Neutrik Speakon, binding post and 1/4″ speaker outputs for connection to almost any sound system.
The rear panel offers several filtering options, the YS activation switch, and a mode switch – the amplifier supports stereo, bridged, and parallel operation. There is a comprehensive group of bright, color-coded LED activity indicators, and the front panel channel attenuator knobs are thoughtfully recessed and protectively covered. Yamaha has built a lot of value into the P2500S and made it available to budget-conscious schools, club date musicians, and event facilities at a very reasonable price.
YAMAHA P2500S Power Amplifier
Output Power | Rating @ 1kHz, THD=1%
275W @ 8Ω Stereo (per channel) 390W @ 4Ω Stereo (per channel) 780W @ 8Ω Bridged-Mono
Rating @ 20Hz – 20kHz, THD=0.1% 250W @ 8Ω Stereo (per channel) 310W @ 4Ω Stereo (per channel) 620W @ 8Ω Bridged-Mono
Rating @ 1kHz, 20ms Nonclip 650W @ 2Ω Stereo (per channel) 1300W @ 4Ω Bridged-Mono |
Damping Factor | Greater than 200 (8 ohms, 1kHz) |
Input Sensitivity | +3dB (8 ohms, Max Attenuation) |
Input Impedance | 30 k ohms (Balanced)
15 k ohms (Unbalanced) |
Gain | 32.1dB |
Frequency Response | 20Hz – 50kHz (0dB, +0.5dB, -1dB @ 1 Watt, 8 ohms) |
Signal-to-Noise Ratio | 100dB |
Total Harmonic Distortion (THD) | Less than 0.1%, 20Hz – 20kHz, Half Power |
Input Connections | 2 x 3-pin XLR Female (Balanced)
2 x 1/4″ (6.3mm) TRS Phone (Balanced) |
Output Connectors | 2 x Speakon
2 x 5-way Binding Post 2 x 1/4″ (6.3mm) Phone |
Controls Front Panel | 1 x Push On/Off Power Switch
2 x 31-Position Attenuator Knobs |
Controls (Rear) | 1 x Stereo/Bridge/Parallel Mode Switch
2 x Subwoofer/Low Cut/Off Filter Switches 2 x 25Hz – 150Hz Frequency Control Switches 1 x Yamaha Speaker Processing On/Off Switch |
Indicators | 1 x Green Power On LED
1 x Red Protection LED 1 x Red Heatsink Temp Overheat LED 1 x Yellow YS Processor LED 2 x Green Signal LEDs 2 x Red Clip LEDs |
Cooling | Dual Variable-Speed Fans |
Power Consumption | Idle: 25W
1/8 (4 ohms): 320W Maximum (4 ohms): 1600W |
Power Requirements | 120V 60Hz |
Dimensions | 19 x 3.5 x 18″ (483 x 89 x 457 mm) |
Weight | 30.9 lbs (14 kg) |
Specialties | Proprietary EEEngine Operating Efficiency Design
Limiter Amp Protection Circuitry YS Processing |