This is an assembled kit of a RIAA phono amplifier that can play immediately by just connect to a transformer.
The board features :
1. installed with TI high fidelity audio opamp LM4562;
2. soldered by Kester 44 solder for best sound;
3. Nova 6800uF audio filtering cap for best power supply performance;
4. MM/MC selectable;
The board requires AC 12Vx2 to 15Vx2 200mA input
Board size: 110mm x75mm.
Soundwise the phono board is very detail and balanced. LM4562 audio opamp outperforms the normal NE5532 ( or JRC5532) too much in terms of resolution and extend of audio frequency. NE5532 gives sound but LM4562 gives music.