LSVคลังสมองออนไลน์ "ปีที่14"

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Q SERIES DIGITAL AMPLIFIER

PAL digital power amplifiers are based on PWM technology which has been 30 years in the field of power converters. Output efficiency is up to 95%. Advanced power circuit design and global mains voltage enable a stable work under 85V-265V input. No need for any manual adjustments. They can be widely used in areas with different power supply or unstable voltage.

 

Zero error modulation is to avoid scope error in the process of converting analog audio signal to digital signal using modulation technique. Closed-loop control technology is adopted to eliminate noise and distortion.

● MOSFET is adopted for amplifying, feature a large dynamic range, high efficiency, good transient response, and able to work safely and stably between load impedance 2Ω and 8Ω.

● Q series has output ports in link interface, which ensures the signal quality and greatly reduces signal distribution cost. Stereo, parallelmodes can provide connecting flexibility of sound reinforcement system.

● COBRANET interface can be added on the digital power amplifier, which realizes network audio signal digital-processing and transmission.

● Protection technology

1. Over current protection. When there is a short circuit in the output or under low impedance threatens the safety of the power amplifier, the protection starts and output signals are closed. When the hazard is removed, it can be detected automatically and back to normal work. Strengthened capacitive load protection ensures no damage for the power amplifier when connecting any load.

2. Current limit technology. Thermal design of digital power amplifier is according to 1/3-1/6 rated power. When sine wave test signals are input and the amplifier outputs at RMS power, it usually becomes overheated. The current limit is to restrict power amplifier to work at rated sine wave output power for a long time and avoid overheating. It does not work unless at overheating situation.

3. Built-in thermal limit design, which can automatically balance heating and cooling. When the temperature rises, a corresponding power output decreased. When the temperature reaches a balanced degree, the volume will be maintained at a certain value and the amplifier will not stop working. So the sound break can be avoided.

Specifications

Power: 450W×2/8Ω 900W×2/4Ω 1000W×2/2Ω

S/N signal to noise ratio:105dB
GAIN: 30dB-33dB (T series digital amplifier are provided three gain selection for connection of different load usage. Low impedance connects low gain to prevent exceptional protection)
Frequency response: 20Hz-20kHz (+1/-2dB)
Damping factor: 300@1kHz
●Input impedance: 15kΩbalanced

Power supply Specifications

Global voltage AC 85V-265V 50/60Hz

Electric current@220V AC

1/8 rated power:

1A/8Ω1.7A/4Ω1.9A/2Ω

1/3 rated power:

2.2A/8Ω3.9A/4Ω4.2A/2Ω

Other Specifications

Cooling Mode: compulsive cooling (4 Temperature-control fans)

Input connector: balanced XLR

Output connector: SPEAKON connector

Control: 2 channels volume control (front panel), gain selection (rear panel)

LED indicator: level indicator, malfunction indicator, overheat indicator

Dimensions: 483*400*44mm W*D*H

Weight: 9.8kgs

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ถ้าเสียจะซ่อมเองได้ไหมเนี่ย :'(

ราคาให้ติดต่อทางบริษัทครับ ส่วนเรืองการservicน้นบริษัทส่งทางเมืองนอกอย่างเดียวครับเพราะได้อะไหลาแท้ครับ

ตอนนี้มีตัวไหม่เข้ามาให้ทดสอบอีกแล้วครับ หนักเพียง8.5kg 500 วัตต์ที่ 8 โอห์ม global voltage 80-250vเดี๋ยวนำภาพตัวแอมมาไห้ชมครับ แต่ตอนนี้ขอตามหาสายลิ้งกล้องก่อนเดี๋ยวจะจะโหลดรูมาไห้ดูนะครับ