The Lindell Audio Vintage OPA - Melcor 1731 Style Opamp is a pin-compatible plug-and-play operational amplifier designed to work with the Lindell Audio 500 series 6X-500 Microphone Preamplifier, 7X-500 and PEX-500 Rev.2 equalizer.

Make your 500 Series rack ready for serious tone with the Lindell Audio PeQ-501a, a single-channel Retro 500 Series 2-band equalizer based upon the legendary Pultec EQP-1A.

The 7X-500VIN "Vintage Edition" compressor packages the sound of one of the most popular compressors of all time into a convenient and remarkably affordable API 500 Series rack module.

Outfit and enhance your 500 Series rack with the Lindell Audio 77X-500, a stereo FET-based compressor that's ideal for use on stereo buses, stems, submixes, and instrument sources such as drum overheads and double-miked electric guitars.

Bring new flavor and expanded functionality to your 500 Series rack with the Lindell Audio RE-51, a single-channel microphone preamp and EQ module featuring stepped controls for easy recall.

A 60 m.m fader for the output section. A compressor with parallel mix knob. A 3-band EQ with sweepable mids. A 80Hz high-pass filter. 48V phantom power, 8 m.m machined aluminium front. etc.

Drop a PEX-500VIN "Vintage Edition" all discrete equalizer into your API 500 Series compatible rack and you're in for a real sonic treat.

The PEX Five Hundred is a one channel transformer coupled Passive Pultec Equalizer. Its an all discrete design based upon the great 990 amplifier.

The 6X-500VIN "Vintage Edition" juices your 500 Series rack with a single-channel transformer-coupled mic preamp, along with a passive 2-band Pultec-style equalizer.

The 6X-500 from Lindell Audio captures sources with detail and clarity. Inspired by the classic Pultec design, the 6X-500 is a one-channel transformer coupled microphone preamplifier and passive 2-band equalizer in a 500-series format.