Take center stage with the Sammar Electronics SK177 Karaoke Pre-Amplifier Board, the ultimate all-in-one solution for high-fidelity vocal processing. Engineered for audiophiles and DIY enthusiasts, this board transforms any standard power amplifier into a professional-grade karaoke machine. At its heart lies the legendary PT2399 Echo IC, the industry standard for rich, studio-quality reverb found in high-end audio equipment.
Designed for seamless performance, the SK177 features Dual Microphone Inputs, allowing for dynamic duets with independent volume mixing. The high-performance JRC4558 dual op-amps ensure your voice is amplified with crystal clarity and zero distortion, while the dedicated Bass and Tone controls let you sculpt the perfect warmth and sharpness for your vocals. Whether you’re hosting a home karaoke night or setting up a public address system, this board offers total acoustic control with a dedicated Auxiliary Input to blend your favorite background tracks effortlessly.
🛠️ Technical Specifications
| Component / Parameter | Specification Detail |
| Model Number | Sammar SK177 (Professional Series) |
| Main Echo Chip | PT2399 (High-Fidelity Reverb IC) |
| Pre-Amp Chipset | Original JRC4558 (Dual Operational Amplifiers) |
| Power Requirement | Dual DC Input (+12V / GND / -12V) |
| Microphone Inputs | 2-Way Dedicated Ports (MIC1 & MIC2) |
| Audio Output | Stereo (Lout, GND, Rout) — Ready for External Amp |
| Onboard Controls | Mic Vol, Echo Ctrl, Bass Ctrl, Tone Ctrl, Aux Vol |
| Connectivity | Standard Audio Input (Lin, GND, Rin) for Phone/PC |













Reviews
There are no reviews yet.