Questions about AC Sweep Magnitude axis

[stw1994]

Hi. I have the following circuit.

This is a high-pass and low-pass filter combined to give a band-pass filter of 20Hz to 170Hz. The following is the AC analysis.

The magnitude value is shockingly low, with the peak at -200dB. I am unsure why that is, or if it's normal.

The full circuit:

Please let me know if more information is required.

[fofango570]

Привет! Кидайте файлы в формате "ms". Проверить модели опампов надо.

[stw1994]

Done, thank you.

[fofango570]

Спасибо! Не совсем понятное задание. Подтянутся Наши люди, думаю всё решат...
Удачи!