RTZ Audio PEQ1549 Parametric Equalizer with XFMR option

RTZ Audio PEQ1549 Parametric Equalizer

The PEQ1549 is our take on the Calrec PQ1549 parametric EQ in the 500 format. The Calrec PQ1549 is a rare but legendary British EQ that some regard as one of the best sounding op-amp R/C type based equalizers ever designed. This equalizer can do big things to sound and truly lives up to the catchphrase "giant sounding". We've also added 2X band range switching on the MF band along with an AIR mode switch on HF band when you really want to add shimmer.


The PEQ1549 unit will allow you to carve up sound in ways that no small desktop mixer could ever imagine. It also has a Lundahl balanced drive output transformer option driven by a low noise/distortion THAT line driver. The input line receivers are by THAT Corp also.

All pots are long life (100,000 cycles) conductive plastic types with 11-detents for accurate settings. The knobs are custom injection molded to our specifications for a clean look and positive feel. It was no small feat packing this much EQ performance and features into such a small package.

Four Band Parametric Section

The PEQ-1549 is a four band equalizer using the same state-variable filter design as the original legendary Calrec PQ1549 equalizer. The state-variable design allows the filter parameters in each band to be varied independently and without interaction. The four bands cover frequencies up to 35 kHz and are divided as follows:

  • HF - High Frequencies (dual band) Normal Mode: 1.5 kHz to 16 kHz
    Air-Band Mode: 3.4 kHz to 35 kHz
  • HM - High-Mid Frequencies (dual band) Normal Mode: 350 Hz to 7.5 kHz
    2X Band Mode: 680 Hz to 16 kHz
  • LM - Low-Mid Frequencies Adjustable from 210 Hz to 2.3 kHz
  • LF - Low Frequencies Adjustable from 30 Hz to 320 Hz

Filter Section

Additionally, the PEQ-1549 contains a high-pass and low-pass filter section that may be switched in/out as needed for maximum flexibility. The filter provides the following filter sections:

  • HP High-Pass (Low-Cut)Sweepable from 25 Hz to 1.2 kHz
  • LP Low-Pass (High-Cut)Sweepable from 2.5 kHz to 35 kHz

Signal present and output overload LED indicators are also provided. Please refer to the owners manual for complete specifications.

RTZ Audio PEQ1549 Parametric Equalizer with XFMR option
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  • Item #: RTZ PEQ-1549
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Price $993.00