Product details of Digital Karaoke Amplifier OK339 DC 12-15V Reverb Pre-amp Before Class To Promote Tone Plate Board Low Noise Filter Circuit Tuning Dual Source HiFi Audio Module
- Model: OK339
- Chip type: PT2399
- Working voltage: dual source 12V-15VAC
- Extended power: 12V output
- Interface: 5.5MM outer diameter, 2.1MM inner diameter
- Microphone jack: 2 Jacks 6.5mm
- Potentiometer specifications: 15 / 20mm
- Using double precision TL074 as input operational amplifier, strong analysis ability, natural sound effects,
- PT2399 is responsible for echo processing.
- Use the microphone to automatically mute the circuit. When the microphone is not inserted, the circuit part is
- completely isolated and does not affect the music reproduction.
- Using step less adjustable technology.
- Added 5V output to connect to the Bluetooth decoder board for easier use.
- Input: 3 pin jack header – music signal input
- Output: 3 pin Jack header – music signal mixed with microphone signal
- Dimensions: 15.7 x 8.8 x 3cm
- Weight: 120g
