Artec HT-N Acoustic Pickup Preamp
Artec HT-N Acoustic Pickup Preamp is an updated version of the HT-4.
Master volume controls to adjust the amount of loudness
Phase reverse switch is a push/pull anti feedback switch. It reverses the phase 180 degree instantly that cancel the feedback some extent. It will help you feel free from the feedback while you are playing with other sound systems.
Mid-Band shift switch can shift mid-band frequency down to 500 Hz.
Notch filter switch will work for filtering the frequency to cut the signal about 400 Hz.
Bass controls to adjust the amount of gain at 80 Hz while gain be adjusted +/-10 dB. Middle controls to adjust the amount of gain at 800 Hz, Treble controls of gain at 3 kHz, Presence controls of gain at 15 kHz and all controls can be adjusted 12 dB.
Low battery LED is an indicator that check the 9V battery power automatically without operating a battery check switch. It will stay on constantly when the battery power is lower than 4.0 V alerting that the 9 V battery has to be replaced with new one.