Passive Equalizer

MID-500 line art

You asked and Lindell answered! The MID-500 is a classic passive equalizer and was created to satisfy the requests of Lindell's loyal users. Based on the Pulteq MEQ-5 filters, the MID-500 is completely discrete and uses hand-wound transformers, inductors, capacitors and transistors in the signal chain for an exceedingly classy sound. 

Based on the classic Pultec MEQ-5 mid-band EQ, the MID-500 500-Series Passive EQ provides 3 bands of equalization centered on a selectable mid-frequency dip. It’s construction includes hand-wound transformers, inductors, capacitors, and transistors all geared towards supplying a vintage tone reminiscent of the MEQ-5.

  • Peak Boost: 200, 300, 500, 700, 1000 Hz; 0 to 10 dB
  • Peak Boost: 1.5, 2, 3, 4, 5 kHz; 0 to 8 dB
  • DIP Attenuate: 200, 300, 500, 700, 1000 Hz and 1.5, 2, 3, 4, 5, 7 kHZ; 0 to 10 dB
  • Loss: None. Passive equalizer loss is restored by operational amplifier. Overall result is no loss and no gain.
  • In-Out Key: Switches equalization in and out without clicks.