Pricing and availability

We compare 600+ stores and found this item at 5 stores. Prices updated .

Sweetwater
$7,699.00
Reverb
5.0 (2)
$5,899.00 New
$5,600.00 Used
B&H
$7,699.00
Thomann
5.0 (1)
$6,222.00 $6,199.00 $23.00 · All time low
Vintage King
5.0 (1)
$7,699.00

Average Price: $6,799

High-end/Boutique

$100

$501+

Price Tier

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Standard

High-end

Price History

Based on price data from 4 merchants for "SPL PQ Mastering Equalizer". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Elevate your mastering game with the SPL PQ Mastering Equalizer, a paragon of precision and adaptability. Engineered for audiophiles and professional sound engineers, this fully parametric, dual-channel five-band EQ is meticulously crafted to ensure each nuance of your mix is captured with clarity and depth. With SPL's pioneering 120V Rail Technology, the PQ boasts unparalleled headroom and dynamic range, rendering music with an effortless finesse that reduces listening fatigue.

The PQ's intuitive design allows for both stereo and dual-mono operation, with each of its ten bands (five per channel) independently switchable between Constant and Proportional Q modes. This flexibility ensures you can tailor your frequency adjustments to suit any mastering challenge, whether it’s corrective or creative. The Auto Bypass feature further enhances your workflow by automatically toggling between processed and unprocessed signals, allowing you to make objective assessments from the sweet spot of your listening environment.

Housed in a rugged 4U chassis, the PQ is designed for precision and durability, featuring detented potentiometers that enable exact setting recall, crucial for mastering sessions that demand consistency and accuracy.

Key Features:

  • Fully parametric, dual-channel five-band equalizer
  • Frequency range: 10Hz–40kHz
  • Auto Bypass for objective A/B comparisons
  • SPL 120V Rail Technology for superior headroom and dynamic range
  • Constant and Proportional Q modes for tailored frequency adjustments
  • Stepped potentiometers for precise recall
  • 1/4 Gain Switch for minute corrections
  • Rugged 4RU chassis with high-precision controls

Owner's manual

SPL PQ Mastering Equalizer User Manual

Product specs

Type Solid State
Number of Channels 2
Bypass Yes
Number of Bands 5
High Pass Filter Yes
Low Pass Filter Yes
Q Type Switchable (Constant, Proportional)
Boost/Cut Range ±20dB
Freq Range High 760Hz-24kHz
Freq Range Hi-Mid 310Hz-10.2kHz
Freq Range Mid 128Hz-4.1kHz
Freq Range Lo-Mid 33Hz-1kHz
Freq Range Low 10Hz-330Hz
Inputs 2 x XLR
Outputs 2 x XLR
Frequency Response 10Hz-100kHz (-3dB)
Rack Spaces 4U
Power Source Standard IEC AC cable
Height 6.97"
Depth 11.8"
Width 19.0"
Weight 33.51 lbs.

FAQs

What makes the SPL PQ Mastering Equalizer suitable for mastering tasks?

The SPL PQ Mastering Equalizer features five bands with switchable Q types and a wide frequency range, allowing precise control over the audio spectrum. Its stepped potentiometers ensure accurate recall of settings, making it ideal for mastering applications.

How does the SPL PQ Mastering Equalizer handle minimal EQ adjustments?

The SPL PQ includes a 1/4 Gain switch, which reduces the boost or cut range from ±20 dB to ±5 dB, allowing for more subtle and precise adjustments when minimal changes are needed.

What type of connectivity does the SPL PQ Mastering Equalizer offer?

The SPL PQ Mastering Equalizer provides balanced connectivity with 2 x XLR inputs and outputs, ensuring high-quality signal transfer suitable for professional studio environments.

Can the SPL PQ Mastering Equalizer be easily integrated into a studio rack setup?

Yes, the SPL PQ Mastering Equalizer is designed to fit into a standard 4U rack space, making it easy to integrate into existing studio equipment racks.

Does the SPL PQ Mastering Equalizer offer bypass functionality?

Yes, the SPL PQ Mastering Equalizer includes a bypass feature, allowing you to compare the processed and unprocessed signals easily during mastering sessions.

purewaveaudio

purewaveaudio

SPL PQ Mastering Equalizer 1540 1544 Review with Samples

Video thumbnail for SPL PQ Mastering Equalizer 1540 1544 Review with Samples by purewaveaudio

SPL PQ Mastering Equalizer 1540 1544 Review with Samples

purewaveaudio

purewaveaudio

Video thumbnail for SPL PQ MASTERING EQ REVIEW by Streaky

SPL PQ MASTERING EQ REVIEW

Streaky

Streaky

Video thumbnail for SPL - PQ Walkthrough | Plugin Alliance by Plugin Alliance

SPL - PQ Walkthrough | Plugin Alliance

Plugin Alliance

Plugin Alliance

Video thumbnail for SPL PQ EQ Review by Audio Animals Studio

SPL PQ EQ Review

Audio Animals Studio

Audio Animals Studio

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about SPL PQ Mastering Equalizer.

Features and functionality

  • The SPL PQ Mastering Equalizer can operate in both constant and proportional Q modes, offering flexibility in EQ shaping.

    Source

User experience

  • Owners appreciate the intuitive workflow of the SPL PQ, emphasizing its impact on enhancing fast and intuitive mixing through muscle memory.

    Source

Comparisons

  • The SPL PQ is compared to the Pulsar Modular P440 and Massive Passive, highlighting its dual Q mode capability which is unique among these models.

    Source

Use cases and applications

  • Ideal for mastering applications where precise EQ control is required, the SPL PQ's versatility makes it suitable for both cutting and boosting frequencies effectively.

    Source

Critic Reviews

New Gear Review: SPL PQ Stereo Mastering Equalizer — SonicScoop

sonicscoop.com

The SPL PQ Mastering Equalizer is a powerful tool that combines versatility and functionality, showcasing its unique Proportional Q circuit that offers a dual EQ experience. Its intuitive detented pots enhance usability, allowing for precise adjustments and recalls. The sound quality is described as euphoric, adding richness and dimensionality to mixes without overwhelming them. While the hefty price tag may be a barrier, the performance justifies the investment. However, the auto-bypass feature might not appeal to everyone, and the absence of high/low-pass filters could be a drawback for some. Ultimately, the PQ proves to be a worthy addition to any mastering engineer's arsenal.

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5.0 out of 5

Based on 0 Reviews and 1 Rating

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Artist usage

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See how Colt Capperrune uses SPL PQ Mastering Equalizer

Colt Capperrune

Audio Engineer

...
Verified via YouTube

In the YouTube video "Epic HOME STUDIO Setup 2025 | Colt Capperrune (studio tour)" by Andrew Masters, the SPL PQ Mastering Equalizer can be seen at 0:38 in a rack integrated into Colt Capperrune’s working desk in his Atmos mixing room, with further details shown later in the video at 23:10.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use SPL PQ Mastering Equalizer, it is most commonly used with the following gear.

Community setups

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