EQBASE PRESS KIT
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Everything in this archive may be reproduced in editorial coverage of EQBase,
free of charge, without asking us first.

Web version, always current:  https://eqbase.app/press/
Press contact:                hello@boldbiscuit.com
                              A person answers, within one business day.


IN ONE SENTENCE
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EQBase is a system-wide audio equalizer for macOS that adds zero samples of
latency and stays bit-perfect when you leave it flat.


SHORT BOILERPLATE (61 words)
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EQBase is a menu-bar equalizer that processes everything a Mac plays, from a
10-band graphic EQ up to a 24-band parametric one, with correction profiles for
8,666 headphone models built in. It also records system audio, sets a volume per
app, and revives the volume keys macOS greys out. Zero added latency,
bit-perfect when flat. Free, with an optional Pro tier.


LONG BOILERPLATE (165 words)
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macOS has never shipped a system-wide equalizer. EQBase is one: it lives in the
menu bar, reads the mix the Mac is already playing rather than installing a
driver to intercept it, and processes everything the Mac plays in real time, not
one app at a time. It runs from a three-band EQ up to a 24-band parametric one
with dynamic and linear-phase filters, and takes on the rest of what macOS
leaves out: one-click recording of system audio, per-app volume, the volume keys
macOS greys out on HDMI and optical outputs, equal-loudness compensation, room
measurement with automatic correction, an analysis suite, audio routing, spatial
audio, crossfeed, convolution and Audio Unit plugin hosting. Correction profiles
for 8,666 headphone models from the AutoEQ project are built into the app. Two
engineering claims sit at the center of it: the direct signal picks up zero
samples of added latency, and when every control is flat the chain is
bit-perfect, which the app verifies live rather than asserting.


ABOUT BOLD BISCUIT (41 words)
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Bold Biscuit is an independent software studio based in Istanbul, Türkiye,
founded by Taha Bozdemir. It has no investors, no advertising business and no
data to sell. EQBase is its macOS audio product, funded entirely by the people
who buy Pro.


FAST FACTS
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Name                EQBase (one word, capital E, Q and B)
Category            System-wide audio equalizer and mixer for macOS
Developer           Bold Biscuit, Istanbul, Türkiye
Founder             Taha Bozdemir
First release       10 July 2026
Current version     1.2.0, released 10 August 2026
Requirements        macOS 14.4 (Sonoma) or later
Architectures       Universal: Apple silicon and Intel, one binary
Download size       10.0 MB
Signing             Developer ID, notarized by Apple
Setup installs      Nothing. No driver, no daemon, no administrator password
Setup permission    System Audio Recording. Never the microphone
Driver              Optional, and only for Audiophile mode and Pro routing: a
                    user-space Core Audio HAL plug-in, NOT a kernel extension
Sample rates        44.1 to 192 kHz, end to end
Headphone profiles  8,666, from the AutoEQ project (MIT, (c) Jaakko Pasanen)
Price               Free with no time limit. Pro $4.99/month or $39.99/year
                    (3 Macs), or $79.99 once for a lifetime license (1 Mac)
Refunds             14 days, no questions asked
Accounts            None. The app works fully offline
Languages           English
Website             https://eqbase.app
Direct download     https://dl.eqbase.app/EQBase.dmg
Homebrew            brew install --cask tahabozdemir/tap/eqbase


CLAIMS WE CAN BACK UP
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Zero added latency      Every stage passes the direct signal at the same frame,
                        FIR convolution included. Two exceptions exist, both
                        opt-in and both disclosed inside the app: the true-peak
                        limiter (2 ms lookahead) and linear-phase EQ mode.
Bit-perfect when flat   Flat or bypassed, output samples are identical to input
                        samples. The app computes this live from the engine, not
                        from UI state, and shows it in the Devices pane and the
                        menu bar. It withholds the claim when anything in the
                        chain cannot be proven transparent. Settings > Help &
                        About has a "Verify transparency" button that audits the
                        running pipeline for three seconds and reports whether
                        the claim actually held. Point a skeptic at it.
Nothing to install      A normal setup adds no driver and no daemon: EQBase
                        reads the system mix through a Core Audio process tap
                        and mutes the original at the same instant. Check it
                        with "system_profiler SPAudioDataType" (no EQBase device
                        appears) and remove the app by dragging it to the Trash.
                        Audiophile mode and Pro routing do install a user-space
                        HAL plug-in, at your click; "kextstat" stays clean
                        either way and the built-in uninstaller removes it.
Free tier is real       Free users get the full 10-band fit of any AutoEQ
                        profile, not a teaser, with no time limit and no
                        account, plus system-audio recording, loudness
                        compensation and the volume keys on fixed-volume
                        outputs.
No microphone in setup  Setup asks for one thing: permission to record this
                        computer's audio, which is what macOS calls reading the
                        system mix. It never asks for the microphone. Three
                        opt-in situations can ask later, always from your own
                        click: choosing a real microphone or instrument as an
                        input in Audio Sources, building a Pro routing device
                        (macOS charges microphone access for opening any device
                        with an input side, virtual or real), and the uncommon
                        fallback where the system-audio path is unavailable and
                        EQBase captures through its own driver instead. Only the
                        first opens a real microphone.


FILES IN THIS ARCHIVE
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brand/EQBase-app-icon-1024.png      The app icon as macOS draws it, mark on a
                                    rounded black tile, 1024 x 1024. This is the
                                    one for a product shot
brand/EQBase-app-icon-512.png       The same, 512 x 512
brand/EQBase-logo.svg               The mark on its own, vector, transparent.
                                    The single source every raster derives from
brand/EQBase-mark-1024.png          The mark on its own, transparent, 1024 x 1024
brand/EQBase-mark-512.png           The same, 512 x 512

screenshots/EQBase-equalizer.png    1763 x 1302. Expert parametric EQ: a
                                    24-band response curve with draggable bands
                                    and headphone correction active
screenshots/EQBase-headphones.png   1360 x 900. Headphone profiles, searching
                                    for AirPods Pro
screenshots/EQBase-spatial.png      1360 x 900. Spatial Audio, with a
                                    reverb-decay graph and room presets
screenshots/EQBase-correction.png   1360 x 900. Sound Correction: imported
                                    impulse responses convolving at zero added
                                    latency
screenshots/EQBase-devices.png      1360 x 1004. Output devices, with volume,
                                    balance and the live transparency readout
screenshots/EQBase-app-mixer.png    1272 x 921. App Mixer: a level, a mute and a
                                    three-band tone control per running app
screenshots/EQBase-menubar.png      320 x 726. The menu-bar popover: master
                                    toggle, Compare, volume, active preset

Need a different shot, a specific pane, or a larger size? Ask. We can produce
screenshots of any part of the app deterministically and turn them around the
same day.


USING THESE ASSETS
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Yes, please:  Reproduce the icon, the mark and the screenshots in articles,
              videos, newsletters and listings. Crop screenshots. Scale
              anything. No permission needed.
Please don't: Recolor or redraw the mark, stretch it out of proportion, put the
              icon on a background that fights its own container, or restyle a
              screenshot so the app appears to show something it does not.
Name:         "EQBase", one word. Not "EQ Base", "Eqbase" or "EQbase".
Developer:    "Bold Biscuit", not "BoldBiscuit".

Screenshots show a real build. Nothing in them is a mockup.


REVIEWER LICENSES
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Writers, reviewers and video creators get a Pro license, no conditions attached
and nothing expected in return. Email hello@boldbiscuit.com from any address
that shows what you write or make; a key comes back the same day. You do not
need to promise coverage to get one.

(c) 2026 Bold Biscuit
