Pricing and availability

We compare 600+ stores and found this item at 6 stores. Prices updated .

Sweetwater
5.0 (7)
$549.00
Amazon
5.0 (2)
$549.00
Reverb
5.0 (2)
$549.00 New
$499.00 Used
Thomann
4.6 (24)
$477.00 $469.00 $8.00 · All time low
Vintage King
4.0 (1)
$549.00

Average Price: $530

High-end/Boutique

$100

$501+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "SPL BIG". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Introducing the SPL BIG - the quintessential tool for artists and producers seeking to add unparalleled depth and dimension to their mixes. This innovative stereo image processor, affectionately known as the "Bigger Maker," transforms the spatial dynamics of your sound, allowing you to craft mixes that not only sound big but feel monumental. With SPL BIG, you have the power to manipulate the stereo soundstage with surgical precision, thanks to its intuitive control set. Start by selecting your desired frequency range with the Range control, then artfully place it within the mix using the Stage control. The magic happens as you turn the Bigness knob, intensifying the stereo image to levels that fill the room and immerse the listener. Additionally, the Bass toggle switch invites a warm, passive bass boost into the mix, a nod to the beloved AirBass circuit from SPL's Iron mastering compressor. Designed for those who refuse to compromise on the quality of their sound, the SPL BIG is your ticket to mixes that don't just sound expansive but truly enveloping. Whether on stage or in the studio, this processor is poised to elevate your audio experience, ensuring your work stands out in the crowded landscape of music production.

Key Features:

  • Range control selects the frequency range
  • Stage control adjusts the selected frequency's position in the mix
  • Bigness knob controls the intensity of the stereo image enhancement
  • Bass toggle for passive bass boost, derived from the AirBass circuit
  • Bypass toggle facilitates quick comparisons between processed and unprocessed signals
  • Crafted in SPL's renowned production facility in Niederkrüchten, Germany

Owner's manual

SPL BIG User Manual

Product specs

Type Stereo Stage Processor
Controls Range, Stage, Bigness
Bypass Yes
Module Slot Size Double

FAQs

What does the SPL BiG 500 Series Stereo Image Processor do?

The SPL BiG 500 Series enhances stereo imaging by widening the stereo field, adding depth and dimension to your audio. It is ideal for mixing and mastering applications where spatial enhancement is desired.

How does the "Bigness" control on the SPL BiG affect sound processing?

The "Bigness" control on the SPL BiG adjusts the perceived size and presence of the stereo image, allowing you to create a more immersive and expansive audio experience.

Is the SPL BiG suitable for both mixing and mastering?

Yes, the SPL BiG is designed to enhance stereo imaging, making it suitable for both mixing and mastering applications where precise control over the stereo field is crucial.

What type of bypass does the SPL BiG feature?

The SPL BiG includes a true bypass feature, ensuring that your audio signal remains unaffected when the processor is not in use.

Does the SPL BiG require a specific slot size in a 500 Series rack?

Yes, the SPL BiG is a double-slot module, so it requires two adjacent slots in a 500 Series rack for installation.

Colt Capperrune

Colt Capperrune

PURE BLACK MAGIC - SPL BiG 🤯

Video thumbnail for PURE BLACK MAGIC  -  SPL BiG   🤯 by Colt Capperrune

PURE BLACK MAGIC - SPL BiG 🤯

Colt Capperrune

Colt Capperrune

Video thumbnail for Three-Dimensional Stereo Widener | SPL BiG Overview by Phable

Three-Dimensional Stereo Widener | SPL BiG Overview

Phable

Phable

Video thumbnail for SPL BiG 500 Series Stereo Expander | Demo by Mixing Music Analog

SPL BiG 500 Series Stereo Expander | Demo

Mixing Music Analog

Mixing Music Analog

Video thumbnail for Quick Hits: SPL BiG 500 Series Stereo Expander by Vintage King

Quick Hits: SPL BiG 500 Series Stereo Expander

Vintage King

Vintage King

Video thumbnail for Stereo Width Audio Processing  | SPL BiG Audio Examples by Phable

Stereo Width Audio Processing | SPL BiG Audio Examples

Phable

Phable

Video thumbnail for NAMM 22: SPL BiG Processor Now For 500 Series by sonicstate

NAMM 22: SPL BiG Processor Now For 500 Series

sonicstate

sonicstate

Video thumbnail for SPL BiG – The Stereo Image Bigger Maker for series 500 🎶 by SPL - Sound Performance Lab

SPL BiG – The Stereo Image Bigger Maker for series 500 🎶

SPL - Sound Performance Lab

SPL - Sound Performance Lab

Video thumbnail for SPL BIG Full Review WIth Samples by Fady Gergis

SPL BIG Full Review WIth Samples

Fady Gergis

Fady Gergis

Video thumbnail for SPL BIG || BEST STEREO WIDENER FOR MUSIC PRODUCTION by FizzENT

SPL BIG || BEST STEREO WIDENER FOR MUSIC PRODUCTION

FizzENT

FizzENT

Reviews

PROS

  • Unique high-quality module that revitalizes recordings

  • Enhances stereo imaging, making it fuller and brighter without harshness

  • Adds a special polish and dimension to mixes

  • Excellent at opening up the bottom end with air bass feature

  • Easy to use with a straightforward interface

  • No phase issues when summed to mono

  • Good value for the price

CONS

  • Effect can be too strong, potentially disrupting mix balance

  • Requires careful use, especially on the mixbus

  • May not make a significant difference on all material

Owner Insights

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

Features and functionality

  • The SPL BiG's usable range is limited; most find 90% of the knob's range unusable due to phase smearing.

    Source
  • The bass boost feature of the SPL BiG is appreciated, despite other functionality being criticized.

    Source
  • The SPL BiG is described as functioning like a mid-side EQ, similar to adding a room mic effect to a drumset, providing a unique stereo imaging tool.

    Source
  • The bass switch on the SPL BiG is highlighted for its effectiveness in parallel processing, enhancing bass presence without overcomplicating the signal chain.

    Source

User experience

  • Owners report that the hardware unit can make a mix collapse in mono due to negative phase issues, even at low settings.

    Source

Comparisons

  • The SPL BiG is compared to BBE Sonic Maximizers and Aphex Aural Exciters, but noted for not delivering as effectively.

    Source
  • The SPL BiG is likened to an analog cabinet emulator mixed with a compressor, offering a distinctive approach compared to direct mixbus application.

    Source

Value and pricing

  • Some users feel the $500 price tag isn't justified, given the SPL BiG's limitations in phase coherency.

    Source

Use cases and applications

  • Users find the SPL BiG effective in parallel processing, using fader automation to control its "mid-side/room mic" effect, which can significantly impact tonal results.

    Source

Critic Reviews

SPL: BiG Stereo Image Processor | Tape Op Magazine | Longform candid interviews with music producers and audio engineers covering mixing, mastering, recording and music production.

tapeop.com

The SPL BiG Stereo Image Processor brings a unique approach to stereo imaging with its intuitive controls, allowing for refined frequency processing and spatial placement. While it excels in enhancing synths and effects, providing a nice character and width to mixes, it can be heavy-handed when applied to the mix bus, which may not suit every engineer's taste. The Bass switch is a welcome feature to combat potential signal thinning, but the overall processing may not be universally appealing. It's a distinctive tool worth exploring, though the results can vary significantly based on context.

Review: SPL BiG 500 — AudioTechnology

audiotechnology.com

SPL's BiG 500 offers a compelling blend of stereo enhancement and harmonic excitement, delivering bold sounds with impressive build quality. Its user-friendly controls allow for precise tonal adjustments, particularly excelling at widening stereo images and adding depth. However, the lack of technical details may frustrate some users, and its aggressive processing can lead to distortion if not handled carefully. While the BiG shines in parallel processing setups, its effectiveness on a mix bus may require a nuanced approach to avoid overpowering the mix. Ultimately, it’s a powerful tool that can transform your sound, but tread carefully to avoid losing control.

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Artist usage

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See how Colt Capperrune uses SPL BIG

Colt Capperrune

Audio Engineer

...
Verified via YouTube

In the video "Epic HOME STUDIO Setup 2025 | Colt Capperrune (studio tour)" by Andrew Masters, at the 0:38 mark, an SPL BiG 500 Series Stereo Expander is visibly placed on Colt Capperrune's working desk in his Atmos mixing room.

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 BIG, it is most commonly used with the following gear.

Community setups

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