Ma Audio hk4000d ユーザーガイド

 

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SPECIFICATIONS 

 

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  Model    

 

 

 

 

HK-4000D 

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  RMS Power @ 14.4V  

 

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  RMS Power @ 17.0V 

 

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  Signal to Noise Ratio   

 

 

 

 

>96dB 

 

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  THD Level  

4 Ohm   

 

 

 

 

 

 

 

 

0.05% 

2 Ohm   

 

 

 

 

 

 

 

 

0.5% 

 

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  Frequency Response   

 

 

 

 

10Hz - 350Hz 

 

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  24dB Low Pass Filter   

 

 

 

 

50Hz - 350Hz 

 

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  24dB Subsonic Filter    

 

 

 

 

15Hz - 50Hz 

 

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  Bass Boost Control at 45Hz   

 

 

0 - 18dB 

 

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  RCA Input Sensitivity   

 

 

 

 

0.2 - 8V 

 

•

  Low level Input Impedance    

 

 

22K Ohms 

 

•

  Damping Factor 

 

 

 

 

 

 

200 @ 4 Ohm 

 

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  Dimensions (W x H x D)   

 

 

 

12.4” x 2.71” x 25.86” 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

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FEATURES & CONTROLS 

 
RCA Line Input Jacks: 
 

To be connected to a line driver, crossover or head unit via RCA Cables. 

 
RCA Line Output Jacks: 
 

For connecting additional amplifiers using a daisy chain effect. 

 
Remote Socket: 
 

External Remote Controller for Sub Level Control. 

 
24dB Subsonic Filter Control: 
 

Permits a 24dB per octave high pass filter between 10-50Hz 

 
24dB Low Pass Variable Control: 
 

Adjustable low pass crossover frequency from 50Hz – 350Hz 

 
0-18dB Bass Boost Control: 
 

The Bass Boost control is used for a 0-18dB gain at 45Hz for extra bass punch. 

 
Input Gain Level Control 
 

For adjusting the output of the amplifier to the input of the source unit. 

 

Adjustment range is from 0.2V to 8.0 V 

 
Power LED: 
 

The Blue color LED indicates that the power is on. 

 
Protection LED: 
 

The Red color LED indicates fault condition of amplifier. 

 

When a fault condition occurs such as an overload, excessive heat or short circuit of speaker 

 

terminals, the protection circuit is engaged to protect both the subwoofers and amplifier. 

 
Parallel Mode: 
 

This Digital Amplifier has a Parallel Mode (Strapped) 

 

This function is used to generate an extreme amount of output power by combining two 

 

amplifiers together to power the same voice coil. 

 
 

MASTER AMP   - When using this option, the master amp has control over the slave amp.  

 

SLAVE AMP 

- When using this option, the slave amp has no control. 

 

 

 

 

 

   The slave amp only role is for increasing total output power. 

 
Power Connection: 
 

Connects +12V DC power wire from battery source to amplifier. 

 
Ground Connection: 
 

Connects the Ground wire of amplifier to the chassis ground. 

 
Remote Connection: 
 

Connects the remote wire allowing the amplifier to be turned on/off by the head unit. 

 
Speaker Terminal: 
 

It allows the connection of a speaker to the amplifier. 

 
External Remote Accessory: 
 

Used for remote subwoofer level control via harness from amplifier