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Big Power Transformer Professional 450W Stereo Karaoke Amplifier

Output power (8Ω) 450W×2

Output power(4Ω) 675W×2
 
Bridge Power(8 Ω) 900W
 
S/N >98dB
 
frequency response +/-0.1dB,20Hz-20KHz
 
T.H.D ≤0.01% 8 Ω rated power 1KHz
 
Sensitivity 0.7、1.0、1.44
 
Damping factor >500@1KHz/80hms
 
gross weight 19KG
 
dimension 485×450×89MM
Availability:
Quantity:
  • PA-900

  • CARD

Our 2-channel 450W power amplifiers are designed to provide reliable and efficient amplification for audio system.

H class power amplifier

Power amplifier features:

1. Classic Two-Stage Power Supply Class H Amplifier: This design ensures efficient power delivery while maintaining low distortion levels, resulting in clean and accurate sound reproduction.


2. Latest Stabilization Circuit System: Our amplifiers incorporate a comprehensive protection circuit system that includes short-circuit, over-current, over-temperature, and limiting protection. This ensures the stable and reliable operation of the amplifier, protecting both the amplifier and your speakers.


3. Input Sensitivity Selection: The amplifiers offer three input sensitivity options (0.775V / 1.0V / 1.4V), allowing you to easily match the amplifier with your front-end audio source for optimal signal levels.


4. Multi-Mode Selection: Our amplifiers provide flexible operation modes, including stereo, mono, and bridge modes. This allows you to tailor the amplifier's configuration to your specific audio setup requirements.


5. Low-Pass and Full-Range Selection: The amplifiers feature selectable low-pass and full-range modes, giving you additional control over the frequency response of your audio system.


6. Two-Stage Linear Intelligent Variable-Speed Fan Cooling: Our amplifiers are equipped with a two-stage linear intelligent variable-speed fan cooling system. This ensures efficient and effective cooling, preventing overheating and extending the lifespan of the amplifier.

Features

line array amplifier

Large filtering capacitors

Filtering large capacitors is employed to ensure a steady and consistent DC output from the power supply. This helps in minimizing current fluctuations and enhances the sound quality, resulting in a clear and transparent tone.

power amplifier

Temperature control and heat dissipation

An intelligent temperature control mechanism with double heat dissipation is implemented to prevent components from getting damaged due to excessive heat. By employing an internal circulation heat dissipation system, the amplifier operates in a cooler environment, thereby increasing its lifespan and stability.

professional amplifiers

Pure copper ring cowtransformer

The utilization of a pure copper ring transformer is instrumental in preventing magnetic field leakage, thanks to the interphase structure with a thick copper layer. This powerful transformer provides ample power to the amplifier, effectively eliminating noise.

Amplifier Material

2 channel amplifierpro amplifierhigh power amplifierspeaker amplifierpro power amplifier

Parameters

Model
PA-900
PA-1200
PA-1600
Output power (8Ω)
450WX2 
600WX2
800WX2
Output power (4Ω)
675WX2 
900WX2 
1200WX2 
Bridge power (8Ω)
900W
1200W
1600W
Frequency response
20Hz-20KHz
THD.
≤0.1% @ 8 Ohm 1KHz
S/N ration
≥98dB
Damping factor
> 500: 1 @ 1KHz / 8 OHM
Input sensitivity
0.775V,1.0V,1.4V
Size
485mmx450mmx89mm



ModelPA-900
Physical dimensions (L*D*H mm)485*450*89MM
Outer box size (L*D*H mm)
Volume (m)
Gross weight (excluding box)19KG
Including box weight (KG)21KG
unitplatform
quantity1


PACKAGE-1PACKAGE1

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