Audio Combination
Sinbosenaudio sound system K4-450 digital 450w 4 channels amplifier with wireless microphone 10 inch speaker
Item No.: K4-450 Amp/SK-20 Mic/10 inch speaker
Model: K4-450 Amp/SK-20 Mic/10 inch speaker.
Amp Feature: 4CH/1U/Digital Amp/Class D/For Full Range.
Speaker/8Ω Stereo Power (RMS): 450W X 4CH.
Speaker/4Ω Stereo Power (RMS): 700W X 4CH.
Mic Feature: 2 antenna/2 channels/2 handheld
Speaker: 10 inch
Amp Feature: 4CH/1U/Digital Amp/Class D/For Full Range.
Speaker/8Ω Stereo Power (RMS): 450W X 4CH.
Speaker/4Ω Stereo Power (RMS): 700W X 4CH.
Mic Feature: 2 antenna/2 channels/2 handheld
Speaker: 10 inch
Description

K4-450 Digital Amplifier | SK-20 Wireless Microphone | 10 inch Speaker |
![]() |
![]() |
![]() |


1U Digital Amplifier | K4-450 |
Output Power 1 KHz, <0.05%THD | 8Ω/Stereo 4CHX450W 4Ω/Stereo 4CHX700W |
Class | Class D Power Amplifier |
THD (20Hz-20kHz for 1W) | <0.1% |
THD (1kHz and 1 dB below clipping) | <0.05 |
DSP Processor | NO |
Signal Noise Ration | >106dB |
Frequency Response(+/-0.1dB) | 10Hz-34kHz |
Damping coefficient | >600 |
Impedance(balanced/unbalanced) | 20KQ/10KQ |
Gain (optional) | 0.775V/1V/32dB |
Output socket | Spe akon Connectors |
Input socket | Combo XLR type, 3pin |
Link socket | XLR type,3pin male(NEUTRIK) |
Protection | Short circuit, open dircuit, thermal, overload,DC,super audio protection |
Power Requirement | 90-265V~50Hz(PFC) |
Size(WxHxD) | 55x32x11cm |
Weight(net) | 8Kg |
K4-450 Digital Power Amplifier
●Mini 1U size, convenient for Touring Applications
●Suitable for stage, bar, club, KTV, Karaoke, home, theater, indoor and outdoor activities, etc.
●4 Channel Class D Digital power amplifier.
●4 x 450 Watts into 8 Ohms.
●4 x 700 Watts into 4 Ohms.
●Precise and Reasonable circuit structure.
●Bring super reliable sound.
●Original Neutrik XLR*/Speakon connectors
●Temperature protection; Over current protection; Short circuit protection built-in.




RECEIVER | TRANSMITTER |
Frequency Range: 615~665MHz Sensitivity: -94dBm for 30dB Image Rejection: > 60dB Frequency Stability: +0.005% Modulation Mode: FM Maximum Deviation Rang: +45KHz Audio Frequency Response: 50Hz- 15KHz (+3dB) S/N Ratio: > 105dB Audio Dynamic Range: > 100dB T.H.D: <0.5% Operating Temperature: -10°C~ 55°C Power Supply: 12-18V DC 1A” |
Frequency Range: 615~665MHz Harmonic Radiation: <-63dBm Band Width: 80MHz Maximum Input Pressure: 130dB SPL Current Consumption: <110 mA Maximum Transmitter Power: 30mW Frequency Range: 50Hz-18KHz Power Supply: 2x1.5V AA battery (battery) |




Inch | Single 10 inch speaker. |
Frequency range | 72Hz-20KHz |
Frequency response | 90Hz 20KHz |
Sensitivity | 95db SPL |
Rated impedance | 8 ohms |
Maximum sound pressure level output | 122dB/ 124dB/ 127dB/124dB |
Coverage angle | 70°X60°(HxV) |


