Feature: 1. ACCURATE AND BALANCED: The vv7 single op amp is a high level J FET input audiophile op amp, can accurately restore the dynamic changes of rich details and transparent natural music in the sound scene. The sound is more balanced and audible 2. TRANSPARENT SOUND QUALITY: The real sound quality of the vv7 evaluation is very transparent and clean, with excellent detail separation, and the rare sweetness in the sound makes people feel very comfortable 3. LARGE FIELD: The three frequency performance is very good, the details are dynamically restored to the real, the sound field is large, but the tension is moderate, people are in the music, and they can enjoy the emotional expression brought by the music, which is really good 4. MORE FLEXIBLE AND NATURAL: The overall performance of vv7 can be summarized as clean, transparent, sweet, balanced, atmospheric, and natural to listen to. Two vv7 single and double have better three band separation and flexibility than one vv8 5. STABLE AND DURABLE: Single op amp audio come with stable structure, excellent performance and long service life Specification: Item Type: Single Op Amp Audio Model: VV7 Number of Amplifier Channels: Single op amp Rated Voltage: ±3.5-±18V Conversion Rate: 18v/s s Bandwidth: 8MHz Low Noise: 2.6nv/vhz at 1khz Distortion Low Distortion: 0.000038% at 1khz Bias Current Input Bias: 25pa Offset Voltage(input offset): 2.8mv Current Output Channel: 50ma Working Temperature: -40℃-85℃. Package List: 1 x Single Op Amp Audio