머플러 상품 이미지-S3L1
머플러 피치 색상 이미지-S1L1
Operational Amplifier with discrete J-FET input stage. Improve your sound quality more than ever. Pin compatible 
with operational amplifier modules of many 500 series cards
  Fredenstein OPA 1 Operational Amplifier Features:
    - Op-amp with discrete JFET input stage
    - Pin configuration is compatible with many op-amps found in 500 series modules
    - High-fidelity audio with low-noise performance