The POSHING DA-828A professional karaoke amplifier is highly recommended not only to karaoke jockeys (KJ), disc jockeys (DJ) but to the most picky home karaoke enthusiasts as well because of its superior performance and ease of use.
The DA-828A is configured with all the essential karaoke features: Echo Volume/Delay/Repeat Controls; Music Balance, Treble, and Bass Controls; Forced acoustical feedback suppression circuitry; individual volume, bass/treble controls for Mics, which can enhance the coordination between your vocal expression and the background music. Three microphone input jacks on the DA-818B are intended to be sufficient for multiple users. The microphone effector loop is separated from the music effector loop so that your vocal characteristics can be adjusted separately for additional ease and enjoyment.
In addition, A cooling fan is added to remove heat from the DA-818B more effectively

Features:

1.Built-in limiter circuitry for auto control. Improved overloading and short circuit protection. Reliable performance.

2.Light-touch buttons and recessed toning setup.

3.Original power TOSHIBA triode with building-block output, damping the excursion efficiently to keep high-calibre woofer under good, tight control.

4.Adopting symmetric, complementary and bi-differential circuitry, zero-crossing and zero- instant distortion.

5.Forced acoustical feedback suppression circuitry.

6.Three (3) Individual Volume, delay and reverb controls for microphones.

7.Built-in auto Noice-Reduction circuitry.

8.Five units of audio/video input jacks.

9.Three Mic inputs, individual volume, bass/treble controls.

10.One pre-out and one rec-out.

11.Power handling:400w RMS. With Master and Mic volume lock-up function, this unit can be used for different applications.

12.A/B input selector from 2 audio sources.

13.Built-in low noise, high flow cooling fans for heat dissipation.

Parameters	Unit	DA-828A
Power Output (RMS)	watt	2x130w/8 Ohm,2x220W/4 Ohm
Power consumption	watt	350W
Input sensitivity	watt	0.775v/47k Ohm (unbalanced)
Frequency response	Hz	20Hz~20KHz (+/-1dB)
T.H.D	dB	<0.03% 4 Ohm/1KHz 1W
S/N		83dB (A-weighted)
Connections		Banana Speaker Output and RCA inputs jacks
Dimension (unpacked)	mm	455x372x135
Carton Size	mm	495x405x195
Net Weight (unpacked)	kg	9.64
Shipping Weight	kg	10.58

The above KP-848/868/888 amplifier is designed according to the request of professionalKTV,in function,thecovered adjustment and pro digtal mixing sound is the new high tech invention of our company. It can control microphone fole back,recognize signal automatically,adjust the volume to the best place after power on ,can becontrolled by infrared remote control,connect the groups of microphone together, output woofer after inner electronic crossover.The power consumption,simple control panel,noble and professional appearance of the amplifiers can meet the requirements of different size KTVrooms.