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C-mark T Series Full-bridged Digital Amplifier

Posted at: Offers to Sell and Export | Posted on: Fri 25 Apr, 2008 6:08 am | | Brazil | Iran
c mark t bridged digital amplifier
Products Photos CatalogMark Bridged Digital Photos Catalog

Technical introduction

1. Zero Error Modulation Technology

Zero error modulation is to avoid scope

error in the process of converting analog audio signal to digital signal using modulation technique.

2.Distortion Self-Adaptive Elimination Technology

Distortion adaptive elimination uses PLL technology, which can adapt and eliminate noise and distortion from various sectors of power amplifier such as driving, amplifying, filter… and so on.

3.Over-Current Protection Technology

Over-current protection happens when there is a short circuit in the output. Under low impedance, above condition threatens the safety of the power amplifier, its protection status starts and output signals are closed. When the hazard is removed, it can be detected automatically and resumes normal work. Strengthened capacitive load protection ensures no damage for the power amplifier when connecting any load.

4.Current Limit Technology

This technology can protect the device from over heat caused by long time operation with rated power output. If everything is normal, the function shall not come to effect.

5.Temperature Limit Technology

The amplifier usually stops working when the temperature reaches 85℃; our digital amplifier has Temperature Limit Technology, which enables the amp to auto reduce output power accordingly, and adjust balance of heating and cooling when the temperature reaches a certain level, and the amp shall not stop working.

6.Fan Rotation Speed Control Technology

This technology ensures high efficiency, low heat and low electromagnetic interference by controlling the rotation speed of fan via PWM technology which is synchronous to switch power.

7.Adaptive to Global Voltage

With APFC, bipolar transistor and MOSFET, the amplifier is auto adaptive to Global Voltage (90-265V). No need for any manual adjustments. They can be widely used in areas with different power supply or unstable voltage. Amplifier output efficiency is up to 95%. High working Frequency of Switch Power; Small size; High efficiency.

8.Condenser load Protection Technology

This technology ensures that Condenser load cause no damage to the amplifier.

9.HF Short-Cut Protection Technology

As to other digital amplifier, when audio signal’s frequency is higher than 10KHz, signals going through LC low pass filter will have an output short cut to earth. Then inductor will suffer all the voltage difference. So the amplifier will be overheated. Our company adopts special HF protection circuit to prevent it from this problem.

10.Anomaly Protection Technology

When amplifier has an anomaly, output with Direct Current will cause harm to speaker. Our digital amplifier with Auto DC Inspection Circuit ensures the safety of speaker.

11.Other Features

Our amplifier adopts:

★Axial fan (Not centrifugal fan).

★Independent exclusive Temperature-controlled fan board having no interference to audio circuit.

★Audio input and power output are totally separated. (Powersoft with adjoined input and output module )

★ Built-In amplifier module. (Powersoft with external amplifier module).

★ CobraNet Interface at option to realize all digitalized data transmission.


Input & output specifications:

Power rate: OUTPOWER

impedance model T1450 T2650 T3500

8Ω 450w 650w 1000w

4Ω 900w 1300w 2000w

2Ω 1000w 1500w 2300w

S/N: 105dB (A-weighted)

GAIN: 30dB-33dB Selectable

(T series digital amplifiers are provided three optional gains 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

Phase differences: (Typical value)

Frequency 20Hz 1KHz 20KHz

Phase(°) +11° -6° -137°

CMRR (common mode rejection rate): (Typical value)

Frequency 100Hz 1KHz 20KHz

CMRR(dB) 71dB 66dB 66dB

Input impedance: 15KΩ balanced

Cross-talk attenuation: (Typical value)

Frequency 20Hz 1KHz 20KHz

CTC(dB) 85dB 80dB 65dB

THD(total harmonic distortion): (Typical value)

Frequency 100Hz 1KHz 10KHz

THK+N@10%Rated Power 0.08% 0.08% 0.05%

IMD (Intermodulation distortion): (Typical value)

Power 1 Watt

DIM 100(dB) 0.05%

SMPTE60/7K(dB) 0.05%

Power supply specifications:

Voltage AC85V-265V 50/60Hz

Electric current @220 VAC

1/8 rated power

impedance model T1450 T2650 T3500

8Ω 1A 1.4A 2A

4Ω 1.7A 2.3A 3.4A

2Ω 1.9A 2.6A 3.8A

1/3 rated power

impedance model T1450 T2650 T3500

8Ω 2.2A 3A 4.2A

4Ω 3.9A 5.4A 8A

2Ω 4.2A 6A 9A

Other Specifications:

1.Cooling mode: compulsive cooling (4 Temperature control fan speed machine)

2.Input connector: balanced XLR

3.Output connector: SPEAKON connector

4.Control: 2 channels volume control (front panel), optional gain (rear panel)

5.LED indicator: level indicator, malfunction indicator, overheat indicator

6.Dimensions: 483*400*443mm W*D*H

7.Weight: 9.8 kg

Contact person: Fancy Zhang

Email: fancy.zhang@c-mark.com.cn

MSN: yezi227@hotmail.com

Cell: 0086 13425157873

Company Contact:

No member photo
Contact Name: Fancy Zhang
Company Name: Shenzhen Bao Ye Heng Industrial Development Co., Ltd.
Email: Email
Tel: 0086 13425157873
Fax: 0086 13425157873
Street Address: Room 301, 3rd Floor,
Jilian Building#4, Xinzhou North
Road , Futian District, Shenzhen,
Guang Dong Province, China P.C.: 518031
Website: http://www.c-markaudio.com/english
Member name: Cmark
Country: China-CN China
Member Since: 25 April 2008
Total Leads: 17 Cmark Import Export Business Leads
Business focus: Pro Audio Products, Loudspeaker, Driver,Power Amplifier, Digital Amplifier, Processors, Wireless Microphone, Conference System, Audionet
Verify: Safe Import Export Tips

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