your amp specs :
konzert AV-502A stereo karaoke amplifier
power requirements - ac220-240v 60hz
main amplifier:
max power output - 500w+500w -8Ω
frequency response - 20hz-20khz
max input capability - 200mv
input sensitivity - >10mv
s/n - >85dB
harmonic distortion - 0.5% (1w)
control filters:
bass - 100hz±10dB
mid - 1khz±10dB
treble - 10khz±10dB
center:
frequency response - 150hz-12khz
music power output - 50w
surround:
frequency response - 150hz
music power output - 50w+50w
while your speakers specs are :
KS 652V
Driver 12" Woofer
Tweeter Horn Type
Power Handling 600 Watts
Sensitivity 94 dB ± 3 dB
Impedance 8 Ω
KS 550
Type: 2-way, 3-speaker Bass-Reflex Type
Attractive three-dimensional curved design
Speaker: 25cm cone-type (Woofer) 7.7cm cone-type (Tweeter)
Frequency Range: 40Hz-20kHz Rated Sensitivity: 90dB Max.
Normal Input Power: 150 Watts
Maximum Input Power Input: 550 Watts
i'm no expert but from the specs alone, overpowered ng speakers ang amp ninyo sir. let the guru's give more details. goodluck