EQBase

EQBase is a macOS utility for shaping audio across apps, with headphone correction and system-audio recording in its free tier. It suits Mac listeners who want a broad library of headphone profiles, while Pro is aimed at people who need room correction or control over app-level audio. Its appeal is a useful free foundation; its clear limitation is its Mac-only reach.

Overview

EQBase applies real-time equalization to system audio rather than just one application. It pairs a 10-band equalizer with measured correction profiles for more than 8,600 headphone models, drawing correction curves from the open-source AutoEQ project. That range makes it a practical option for listeners whose headphones have a known profile, although profile coverage is not a substitute for room measurement or per-app control.

The free tier can record system audio as MP3, AAC, ALAC, FLAC, WAV, or AIFF, including several lossless formats. Audio processing is local; the privacy policy says audio content, recordings, and listening information are not collected, stored, or transmitted. Usage sharing is optional, and crash reports are enabled by default but can be switched off in Settings.

Key features

Pro adds microphone-based room measurement and fits a parametric correction curve, extending EQBase beyond headphone profiles to room response. Its app mixer provides per-app volume, mute, and tone controls, and it can route sources to one or more outputs. Audio Unit plugin hosting is also reserved for Pro. These are meaningful additions for users managing a listening or production setup, but they make the free tier less suitable for anyone who needs those controls from the outset.

The site says direct signal processing adds zero samples of latency and supports sample rates from 44.1 to 192 kHz. Normal setup does not install a driver; optional Audiophile mode and Pro routing use a user-space Core Audio driver. EQBase requires macOS 14.4 or later and supports both Apple silicon and Intel Macs.

Pricing

The Free plan costs nothing, has no time limit, and includes the core features. It is the sensible starting point for headphone correction and system-audio recording, but room measurement, per-app controls, routing, and Audio Unit hosting require Pro. There is no free trial.

Pro Monthly costs $4.99 a month, billed monthly, and can be cancelled anytime. Pro Annual costs $39.99 a year, billed yearly, with about four months free compared with monthly billing. Both include all Pro features for 3 Macs, making annual billing the lower-cost choice for someone committed to using the tools over time. Pro Lifetime costs $79.99, paid once and includes Pro features for 1 Mac; it avoids recurring payments but covers fewer Macs than the subscriptions.

Platforms

EQBase runs on macOS 14.4 or later, on Apple silicon and Intel Macs. It is not a fit for users who need a Windows, Linux, or mobile version. Support is by email, with a typical reply within two business days. The app checks for updates automatically and verifies them against an Ed25519 signature before installation.

Who it's for

EQBase is best suited to Mac users who want system-wide headphone correction and audio capture without a time-limited trial, or who will pay for room measurement, per-app mixing, and routing. It is a weaker choice for cross-platform households and anyone who needs those Pro controls without a subscription or a one-time purchase.

Pros and cons

• Pros: More than 8,600 measured headphone profiles give users a wide choice of corrections.
• Pros: The free tier records system audio in six formats, including ALAC, FLAC, WAV, and AIFF.
• Pros: Local processing and the stated privacy policy keep audio content, recordings, and listening information off the collection and transmission list.
• Cons: Pro is required for room measurement, per-app controls, routing, and Audio Unit hosting.
• Cons: macOS 14.4 or later is required, so users on other platforms cannot use it.
• Cons: Crash reports are on by default, though users can disable them in Settings.

Alternatives

For a broader category comparison, browse Audio Equalizer Software. Nahimic is a free alternative for users whose compatible computer is supported; its download page lists compatible computers and versions, and an audio driver update is required first.

Buddi is free budgeting software, not an audio equalizer. DeskFX Audio Enhancer is another freemium option for macOS and Windows users. JamesDSP is a free alternative for Android or Linux users, with a PipeWire package for Linux. SotF is a free, open-source option for Linux, macOS, and Windows. SteelSeries Moments is a free Windows option. EqLume is a free Mac app, with its Mac App Store version requiring macOS 26.0+ and Apple silicon. eqMac is another macOS freemium alternative; its free tier excludes Pro features.

Verdict

Choose EQBase if you use a supported Mac and want headphone correction plus system-audio recording without a time limit, with a clear upgrade path to room measurement and app-level routing. Its strongest reason to choose it is the combination of broad headphone-profile coverage and useful free recording. Look elsewhere if you need another platform or do not want to pay for its more advanced controls.