Prens,
Berikut foto kit, skematik, dan PCB dari Amp. Diatas kertas, spesifikasinya lumayan bagus.
Efisiensinya belum jelas, mungkin diatas 70%.
Memakai IC dari philips.
"At the heart of the circuit is the TDA1562Q IC, described by Philips as a "monolithic integrated Bridge-Tied Load (BTL) class-H high-efficiency power amplifier".
PERFORMANCE
Output power: 36W RMS into 4?
Music power: 70W into 4?
Frequency response: -1dB down at 28Hz and 55kHz
Input sensitivity: 130mV RMS (for 36W into 4?)
Harmonic distortion: typically 0.2% (see graphs)
Signal-to-noise ratio: 95dB unweighted (22Hz to 22kHz)
Aslinya bisa dilihat disini.
http://siliconchip.com.au/cms/A_30614/article.html