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Low-Cut filter : 80 Hz (24dB/oct) – modifiable
Low frequency band : 30 Hz to 450 Hz – Shelf mode
Low Mid frequency band : 0.2kHz to 2 kHz + FREQ/3 Switch (60Hz to 600Hz)– full Q Adjust (Maximum Gain Changes with Q Settings)
High Mid frequency band : 0.6kHz to 6kHz + FREQx3 Switch (1.8kHz to 18kHz)  – full Q Adjust (Maximum Gain Changes with Q Settings)
High frequency band : 1.4kHz to 16kHz – Shelf mode
High-Cut filter : 8 kHz (24dB/oct) – modifiable

Maximum 21 dB of boost/cut gain per band (center detent)

High quality pots (TT Electronics and Alps Alpine)

THAT 1246 In- and THAT 1646 Outputstages


Its running on +16V/-16V in the 500 API Standard/ VPR Rack or in the GDIY 51X Rack


Final Product may vary a little from the pictures


Here are some listening samples

Soundcloud SLQ51X Comparison Test


Build Guide

All our Build Guides


GDIY Help Thread
GDIY Help Thread

SLQ51X Pink

PriceFrom €284.84
Excluding Sales Tax
  • The SLQ51X Pink is a powerful and versatile audio tool, perfect for any DIY audio enthusiast looking to add some vintage flair to their sound. With its classic styling and 500 API format, the SLQ51X Pink is based on the beloved 4000 Pink (E292) Equalizer. The mid bands feature "x3" and "/3" switches, allowing for precise control of your sound, while the LF and HF bands offer shelving EQs with a unique dip and bump before the boost and cut.

    Other notable differences are that when boosting and cutting, the slopes of the curve remain the same therefore incorporating a wider frequency range with increased boost/cut, and gain range = +/- > 20dB depending on Q setting. It was formerly launched as a response to the original Rupert-Neve Focusrite EQ.

    Very Flexible and very easy calibration . We added to this 4 Band Equalizer a Low and High Cut Filter to make it more flexible in Mixing or Recording situations.

    Take your audio to the next level with the SLQ51X Pink.


    Improved Build - Easy Final Assembly and Testpoints

    • Shipping will be calculated depending on your location
    • Standard Shipping with DHL
    • UPS Express Saver as Option in Checkout
    • Free Standard Shipping in Europe on orders over 100€

    Return of untouched Original Products is possible during a time of 14 days after receiving your article, check our Return Policy

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