1. should have an ideal voltage amplification stage with wide frequency response, high speed and low distortion.

2. There should be an ideal current amplifier stage with good linearity, extremely high input internal resistance, extremely low output internal resistance and extremely small input-output potential difference, ideally zero.

3. To have an ideal power supply, the AC internal resistance of the power supply is required to be zero. If it cannot be done, it must be done very little.

Do these three things well and the amplifier will be fine.