Product introduction:
● This finished amplifier is a handmade DIY product of our shop
●Small size, high power, HIFI first choice
●From the official standard circuit, TDA7293 dual parallel output, which effectively solves the problem of insufficient output power of the single-chip 7293 . It has strong power and can effectively promote 4-8 inch speakers.
●With the preamp of the music transmission straight A1, it forms a power amplifier with outstanding performance, with extremely high resolution, extremely low noise, and balanced tone. The internal MOS transistor structure of TDA7293 makes the sound very hard to hear, and the timbre is fine.
A good circuit with good components is the prerequisite for sound quality. The double-sided PCB board and carefully selected components make the circuit performance to the extreme. The power filter uses two NOVER gold AUDIO capacitors 10000UF.
The full range of small filter capacitors are imported, Nikon, Taiwan-made, and other electrolysis; CBB full series are non-lip products, potentiometers are imported ALPS16 type, protection circuit relays are imported Omron, all are Boutique supplements
The power amplifier is equipped with a complete output protection circuit, which integrates power-on delay, mid-point voltage protection, and shutdown protection, which effectively protects the speaker.
The A1 preamp is powered by independent windings to ensure noise suppression. The transformer uses custom-made pure copper wire loops, and strives to achieve the lowest level regardless of interference and noise.
●The power amplifier output uses large crystal pure copper output, and the output is pure copper RCA made in Taiwan
Parameters :
●Size: width 250MM, depth 230MM, height 80MM(Excluding protruding parts)
●Output power: rated (THD≤0.1%) 65W+65W 8 ohms 90W+90W 4 ohms
Maximum music power can reach 150W+150W
●Frequency response: 20Hz-20KHz
●Total Harmonic True (THD): ≤0.01% (1KHz 1W)
●Channel separation: 88DB
