Summit Audio EQF-100 by Softube EQ plugin interface

Summit Audio EQF-100: Passive Tube EQ Plugin by Softube

Rated 4.8/5 on Plugin Boutique (18 ratings)

Summit Audio EQF-100 is a plugin by Softube that models a passive tube equalizer. It offers four fully parametric bands, switchable high and low filters, and modeled output stage distortion for warmer, fuller mixes.

VST3VST2AUAAXRTASWindowsmacOS64-bit

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01Overview

The EQF-100 is an equalizer effect from Softube that recreates the Summit Audio passive tube EQ design in software. Its four fully parametric bands cover a wide range of tonal adjustments, and the developer describes the unit as suitable for individual tracks, subgroups or the stereo bus. The plugin combines tube and solid state technology, and pushing the output meter into the red adds a thick saturation from the modeled output stage. It is available in VST3, VST2, AU, AAX and RTAS formats for Windows and macOS.

Best for

Mix bus tonal shaping
Vocal EQ and warmth
Drum subgroup coloring
Adding saturation to tracks
Low and high cut filtering

Developer: Softube
Category: EQ
Store: Plugin Boutique

02Key features

What you get

Four fully parametric EQ bands with fixed frequency bands
High and low filters switchable between bell and shelf
Three-position low and high cut filters
Modeled output stage distortion for woody saturation
Smooth sound with flexible operation
Each component modeled in detail, per the developer
Boost-oriented EQ design, not limited to cutting

03In depth

Sound and Character of the EQF-100

Softube positions the EQF-100 as a passive, tube-driven equalizer built for smooth, flexible tone shaping. Its four fully parametric bands sit on fixed frequency bands, giving you a set of predictable points to work with.

The developer emphasizes that you can boost frequencies rather than only cutting them. Per the developer, driving the output meter into the red brings out a woody, thick saturation from the output stage, which is modeled in the plugin. Each component has been modeled in detail, according to Softube.

High and low filters can be switched between bell and shelf responses, and the low and high cut filters offer three selectable cutoff positions each.

Workflow and Key Controls

The EQF-100 includes four fully parametric EQ bands plus high and low filters. Each filter can switch from bell to shelf, which lets you shape broad tonal areas or target specific frequencies.

The low and high cut filters each provide three cutoff positions, useful for trimming low rumble or high-end noise on individual sources.

The output stage saturation is a key part of the workflow: raising the output level adds edge and thickness, so the tone control and the drive are closely linked.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Softube
Type	Plugin
Category	EQ
Formats	VST3, VST2, AU, AAX, RTAS
Operating systems	Windows, macOS
Architecture	64-bit

05FAQ

Questions, answered

What formats does the Summit Audio EQF-100 support?

The EQF-100 is available in VST3, VST2, AU, AAX and RTAS formats. It runs on both Windows and macOS.

What do I need to run the EQF-100?

You need an AU, VST, VST3 or AAX compatible DAW host, a Softube account and an iLok account, plus internet access for downloading installers and managing licenses. Softube recommends using the VST3 version because some of its plugins have features not present in the older VST format.