Hi just want to share something about a cheap amp but a very reliable one the KonZert 502A Karaoke/Stereo Amp.
I recently bought this sa Raon in Quiapo, for Php 3,500.00. the specs are these:
500W + 500W Max Stereo
50W Center
50W + 50W Surround
1.) Hindi nya binigay ang exact technical specifications sa manual, at wala rin indication ng total power consumption or even speaker hook-ups nito sa back panel ng amp, so its hard to distinguish kung hanggang saan ang capabilities nito.
2.) Suppose to be Pro-Logic ang amp na ito! pero when I try to hook up it up with a 5 channels speaker, wala decoding na nangyari, and pro-logic system are dedicated channels. Fronts L/C/R while ang surrounds remain mono's, pero when I try a programme material (e.g. 2 fast 2 furious) meron nga steering ng L/R channels pero pag dating sa critical Center, SABLAY! hindi lang center channel ang may vocal's pati L/R at surround niya. Surrounds should only project ambiance (passing cars, stray bullets, passing persons or things etc.).
3.) Karaoke daw ang amp na ito, RIGHT!!! when iItry a videoke material and hook up my Shure PG48 vocal microphone, SABLAY ulit! may vocals level nga at may echo, pero walang intensity, suppose to be may digital delay ito, pero walang depth or intensity ang boses ng kakanta dito, kase walang delay or reverb buti pa ang Promac meron, with having technical similarities. I have to add up a effects mic mixer.
Sa visual appearance naman, para daw hindi ka ma fake according to the sales person (official distributor of KonZert products) eto daw ang mga palatandaan, dahil almost gayang gaya na daw ng mga pirates ang products nila, here it is:
a.) Look for the warranty card, dahil ang products nila ay may warranty for 1 year inclusive of all parts and services, plus may corresponding serial nos. ito.
b.) Yung engraving ng KONZERT name sa top portion ng amp, malalim ang pagkaka metal stamp nito malinaw at hindi mababaw.
c.) May 3 switch outlet sa back panel ng amp, that can handle up to 300W max.
d.) Yung top portion ng amp may grill so when you peek inside, yung PCBoard daw ay must be light brown ang immitation daw ay dark brown or green, plus ang power supply nito at torrodial transformer at 8 pcs ang power transistors nito hindi ko lang alam kung ano model type.
So my final verdict. This is to my opinon lang naman, hindi ito pang home theater dahil kahit sa Pro-logic hindi niya ito ma-perform ng tama at wala rin future enhancement dahil stereo inputs lang ito walang 5 channels input. At sa karaoke naman wala silbi ang front inputs nito sa Mic kung depth at intensity ang hanap mo, you have to add up a digital effects mic mixer.
PERO MAY FEW PRO'S ITO. THIS AMP CAN HANDLE A PROFESSIONAL LOUDSPEAKER UPTO 500WATTS" PEAK!!! . I hooked this with a professional studio loudspeaker monitor (horn and 15" driver rated at 500W peak)12 hour straight party music, walang sablay, we have all the music power we need and i can say this amp categorize as a Hi-fi dahil sa mga integrated controls nito (e.g. bass, mid, high etc.) a hi-fi amp that can handle enough power as a professional amp, plus imagine the torture na ginagawa ng mga sales person sa Raon sa amp na ito so you can rely on this pag dating sa tibay, basta caution lang dapat tama lang ang hook-ups ng mga speaker.
Sa music power walang duda sa amp na ito, pero caution: dont try hooking it up with a 2/4ohms load. dahil pretty sure damage may occur. Sa clarity i can rate it 6.5 out of a 10 point scale pero if you have an old laptop na may SPDIF out try mo input ito, dagdag effects kung baga.
But for Php. 3,500.00. this is very cheap! kung hindi ka naman ganun kaselan at hindi ka pala rely sa mga technical nos na makikita mo sa specs at loud music and stereo lover ka, Okey.
I'll update more info's after I break-in this amp more.