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SM Professional

PA 4.5

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Power
4500 WATTS
Channels
2 Channels

The PA 4.5 is a PA Series range of high-power amplifier built to have outstanding sound quality, excellent power efficiency & guaranteed operational reliability .

The amplifiers are using two types of power supplies, the switch mode power supply allows operation on voltages as Low as 130V, at the same time Linear Power Supply gives a punch packed performance !

Features

  • Professional high-power amplifiers.
  • Input: Balanced XLR and 1/4” Stereo Jack.
  • 3 switchable operational modes: Stereo, Mono & Bridge.
  • High-current toroidal transformers with high-grade cores for greater transient response & low-noise even at 2 Ohms.
  • High quality glass epoxy, double-sided PTH PCB’s & high-grade components ensures reliability in even tough ambient environs.
  • Intelligent cooling using low-noise variable speed fans & direct mounted over-designed heat-sinks.
  • Sensitivity (0dB or+4 dB) selection switch allows flexibility in connection of input sources.
  • Switchable Low-cut switch for protection & tight-low end performance.
  • Switchable Limiter Switch to protects speakers from damage due to distorted input signals.
  • 41-detent rotary volume knobs.
  • Mute, Signal, Clip and fault LED indicators assists you to monitor performance.
  • Rated for 2 Ohms operation.

Specifications, Q&A and videos

PA 4.5 technical specifications
SeriesP Series
2 Ω (True RMS),20Hz-20kHz,1% THD2 x 2250 W
2 Ω (EIA), 1kHz , 1%THD2 x 3900 W
4 Ω (True RMS),20Hz-20kHz,1% THD2 x 1600 W
4 Ω (EIA), 1kHz , 1%THD2 x 2450 W
8 Ω (True RMS),20Hz-20kHz,1% THD2 x 950 W
8 Ω (EIA), 1kHz , 1%THD2 x 1225 W
4 Ω (True RMS),20Hz-20kHz,1% THD4500 W
4 Ω (EIA), 1kHz , 1%THD7800 W
8 Ω (T rue RMS),20Hz-20kHz,1% THD3200 W
8 Ω (EIA), 1kHz , 1%THD4550 W
Damping factor (8 Ω)> 400 :1
Frequency Response20Hz - 20kHz (±0.5dB)
Protection DevicesTemperature, DC, RFI Short Circuit, Soft-Start, Over load
Input Connector (Per CH.)XLR, 1/4” TRS Jack
Output Connector (Per CH.)Speakon Connector
Dimensions (WxDxH)mm482 x 455 x 130 (3U)
Net Weight (Kgs.)33
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