Incorporated with an embedded digital signal processor (DSP), the digital karaoke mixers reduces many bulky components of traditional mixer yet it packed with many great features that can only be found on the most expensive studio equipments.
the AKJ7615 features four surround modes, digital controls with digital/numerical display, microphone echo function, music key control and microphone key control. With the digital key function being able to be applied to the microphone path, additional dimensions of the vocal sound control and adjustment can be enhanced and induced for the ultimate entertainment results of any karaoke , party or show. Both the music key control and microphone key control are pure stereo key control with extremely low distortion and, hence, the key can be shifted up or down extremely smoothly and handsomely. In addition, four video input terminals and two video output terminal enable users to operate up to four audio/video equipment simultaneously.

The extraordinary features of quality key control with extremely low key-shift distortion, clear/transparent echo sound, versatile performances and function, and rugged/delicate appearance make the AKJ7615 professional karaoke mixer an outstanding value in any critical karaoke or DJ application.

• Advanced Digital Signal Processor (DSP) - Digital signal minimize noises and signal reduction
• Digital display for precision control
• Full display panel for status indication
• 39 Keys Full Function REMOTE CONTROL
• MULTI AUDIO Mode for MPX discs player back
• VOCAL CHANGE Karaoke Function
• Multi AV Selector: Four Sets VIDEO and AUDIO Inputs
• Two Video Outputs for simultaneous 2 TV display
• 19" Rack-mountable with rack-mounting kit
• 110/220V for both American or European Power System

Microphone Control:

• Four Microphone Inputs
• 11 Steps Microphone KEY CONTROL
• Master Microphone Volume Control
• 2 Microphone Volume Controls for Mic1 & 3, 2 & 4
• Microphone Tone Control
• Microphone Echo/Delay/Repeat Control

Music Control:

• Four Surround Modes - PSE, Live, Movie, Karaoke
• 24 Steps Music Key Control KEY CONTROL
• Music Bass, Midrange, Treble Control
• Music Volume Control
• Music Mute

• Total Harmonic Distortion (@1KHz) 0.05%
  Input Sensitivity/Impedance MICROPHONE---1.5mV/10K Ohms
  VCR---150mV/50K Ohms
  CD---150mV/50K Ohms
  DVD---150mV/50K Ohms
  VCD---150mV/50K Ohms
  VIDEO---150mV/75 Ohms
  
• Output Level/Impedance AMP OUTPUT---775mV/600 Ohms
  REC---775mV/600 Ohms
  VIDEO---150mV/75 Ohms
  
• Frequency Response 20 Hz to 20 KHz (+/- 1dB)
  Signal/Noise Ratio MICROPHONE---70dB
  VCR---80dB
  CD---80dB
  DVD---80dB
  VCD---80dB
  
• Tone Control TREBLE---5KHz>10dB
  MID---1kHz>10dB
  BASS---200Hz>10dB
  
• Microphone Key Control 5 steps, 10cents, 20cents, 2 keys, 3 keys, 1octave)
  * Note: 50cents = 1/4 Keys
  
• Music Key Control 12steps 1/4 keys/step)
  Total Harmonic Distortion (T.H.D.) 0.05% (at 1KHz)
  Echo Digital System, Delay Time – 200ms
  Power Supply 110-120V/220-240V, 60/50Hz
  Weight 8.8 lbs. (4.0 Kgs)
  Dimensions (W X D X H) 17" X 8" X 1 3/4" (432 X 203 X 44 mm)