We've made some improvements to the overall user experience. A faster, smoother start AirDSP now opens with a single splash screen instead of two, connects to your amplifier a little faster, and feels more responsive as you move around the app. Muted channels stay muted Fixed a rare issue where a channel you had muted could start playing again after the amplifier restarted or came out of standby, even though the app still showed it as muted. AirDSP now re-applies your mute settings automatically the moment the amp reconnects, so what you see in the app matches what you hear. Thanks for tuning with AirDSP.

A summer release that ties off a months-long design pass and adds the most-requested tuning tool yet. ALL-PASS FILTERS IN THE 15-BAND EQ You can now place 1st- and 2nd-order all-pass filters on any of the 15 EQ bands. All-pass filters don't change the frequency response. They rotate phase around a chosen frequency. That's the tool you reach for when you want a tweeter and a midrange to line up cleanly through their crossover, or to clean up the timing of a stack that was never built to be coherent. • AP1 rotates 180° across its frequency with the slope of a 1st-order pole. Set the frequency and you're done. • AP2 rotates 360° and is the workhorse for crossover phase alignment. A Q of 0.5 lines up with an LR2 crossover. A Q of 0.707 lines up with the more common LR4. AP bands show up in the EQ picker alongside peaking and shelf bands. The chart draws their phase response as a soft wash in the channel color so you can see exactly what each filter is doing, and a dotted band trace marks the rotation point. Magnitude stays exactly where you left it. ROOM EQ WIZARD IMPORTS NOW INCLUDE SHELVES The Room EQ Wizard importer now accepts low-shelf and high-shelf filters in addition to peaking filters. The typical "Match response to target" output, which often emits a low shelf and a high shelf alongside its peaks, now lands in AirDSP exactly the way REW measured it. No more hand-rebuilding shelves after every import. Filter types AirDSP cannot store, such as all-pass or modal bands, are skipped with a note in the preview so you always know what made it across and what didn't. The 15-band EQ also now exports each band with its actual filter type, so files written by AirDSP can be read directly by Equalizer APO, Music Assistant, CamillaDSP, and other parametric EQs that read REW's generic text format. A NEW LOOK This release is the destination of a design pass that started in the winter, drawn from the iconic look of vintage Japanese hi-fi gear. New teal accent color throughout. Lit faders. A recessed tone-fader cavity with overhead glow. An aluminum-cap power switch you drag to slide. Vintage gain and delay sliders. Redrawn LED meters. Rebuilt device cards. Every screen has been retouched to feel like a piece of real audio gear instead of a software panel. The static wordmark on launch has been replaced with a short, hypnotic video that plays as AirDSP opens. FIRMWARE v1.8.0 Every device updates to firmware v1.8.0 with this release. Two notable changes: • Your amp now works straight out of the box, even before you connect it to Wi-Fi. Plug in, hit power, music plays. • Overload protection now resets cleanly after a fault clears, so you no longer have to power-cycle the amp to get audio back. IMPROVEMENTS AND FIXES • More reliable device discovery, with automatic recovery if a scan stalls or the device list gets stuck. • The fine-tuner's Reset link now closes the panel before showing the confirm dialog, so the confirm is never hidden behind it. • Switching a band type back to peaking now restores the previous gain instead of zeroing it. • Preset loads now clear stale FIR state cleanly per channel, fixing rare cases where a fresh preset would briefly inherit the previous one's FIR config. • Status-readout copy, and dozens of smaller polish touches across the app.

Version 1.2.7 is a massive update. The app is now AirDSP by Acoustas. Same app, same account, same devices on your amp. The home-screen icon reads AirDSP. Nothing you set up before needs to be set up again. - Rebuilt from the ground up: faster screens, smoother motion, more reliable tuning - Dedicated apps now on iPad, Mac, and Windows, each with layouts built for the larger screen - Redesigned interface across every screen, with new controls and haptic feedback - FIR Vault: Linear Phase Linkwitz-Riley, Invisible Linear Phase, Nt-X Pro Linear Phase - Phase Linearizer to correct phase response of any filter chain - Tune all the way down to 10 Hz across EQ and crossovers - New 15-band EQ with 0.25 dB resolution, low and high shelf filter types, a fine tuner, and haptic feedback - Long-press a band's gear icon to instantly reset it to flat - New preset engine: export any preset as a .acp file that works on any Acoustas amp - Save an entire amp state as a .acs file, with every preset, FIR, routing, and setting - New frequency response graph with richer gradient fills and smoother curve rendering - Redesigned Tone Control, Volume Control, and channel selection - Per-channel fine-tune gain, independent of master volume - Bluetooth or manual Wi-Fi provisioning built into the app (no separate setup app) - Over-the-air firmware updates through the app - Firmware v1.7.8 ships with this release Bug fixes: - Network discovery fixed on iPhones that previously had trouble finding the amp - Bessel filter instability resolved - Factory reset now completes cleanly every time, with the volume muting instantly and settings restoring correctly on reconnect - Preset import now preserves filter types and channel groups correctly - Preset and device switching now applies settings cleanly, with no partial updates Running firmware older than v1.4.12? Visit update.acoustas.com for a one-time USB update that brings your amp up to date and unlocks over-the-air updates from then on.

We’ve been hard at work improving your experience. Here’s everything that’s new, better, and smarter in this release: Control Page Upgrades - More Presets: Now with four additional preset slots for your custom setups - Customizable Presets: Choose between icon or text with descriptions—make each preset truly yours - Import/Export Presets: Save and share your favorite sound profiles across devices - New Tone Chart: A simplified chart for quick tone adjustments at a glance Devices Page - New Support Menu: Help is now just a tap away Tune Page Enhancements - Custom Channel Labels: Add icons or text with descriptions to make each channel instantly recognizable - Channel Copy Tool: Copy any channel’s settings—including L/C/R assignment, Invert, Delay, Gain, Crossovers, and EQs—to any other channels - Clear Channels: Instantly clear any selected channels with one tap - All-New Frequency Chart: View and compare multiple channels, zoom and pan, inspect exact values at any frequency, and even overlay tone signals - Channel Groups: Create and name channel groups, then control each one independently from the new Groups page - EQ Editor Pop-Up: Adjust Frequency, Gain, and Q with sliders and see changes live on the chart - Sort EQs with One Tap: Organize EQ bands by frequency across one or more channels with a single button General Improvements - Cleaner Interface: Slimmer icons, tighter layout, and removed dividers for a sleeker, more focused experience - New Mute Icons: Replacing switches with elegant mute icons—cleaner and more intuitive Bug Fixes Q-Setting Bug: Fixed an issue where the wrong Q value could be set in rare cases Device Scanning: Improved discovery speed and reliability with smarter caching iPhone Permissions: Added the necessary prompts for iPhones that require explicit mic permissions Crossover Frequency Editing: Now changes are applied only when saved—no more accidental frequency shifts while tweaking Enjoy the new features and stay tuned—more to come! Team Acoustas

We’ve been hard at work improving your experience. Here’s everything that’s new, better, and smarter in this release: Control Page Upgrades - More Presets: Now with four additional preset slots for your custom setups - Customizable Presets: Choose between icon or text with descriptions—make each preset truly yours - Import/Export Presets: Save and share your favorite sound profiles across devices - New Tone Chart: A simplified chart for quick tone adjustments at a glance Devices Page - New Support Menu: Help is now just a tap away Tune Page Enhancements - Custom Channel Labels: Add icons or text with descriptions to make each channel instantly recognizable - Channel Copy Tool: Copy any channel’s settings—including L/C/R assignment, Invert, Delay, Gain, Crossovers, and EQs—to any other channels - Clear Channels: Instantly clear any selected channels with one tap - All-New Frequency Chart: View and compare multiple channels, zoom and pan, inspect exact values at any frequency, and even overlay tone signals - Channel Groups: Create and name channel groups, then control each one independently from the new Groups page - EQ Editor Pop-Up: Adjust Frequency, Gain, and Q with sliders and see changes live on the chart - Sort EQs with One Tap: Organize EQ bands by frequency across one or more channels with a single button General Improvements - Cleaner Interface: Slimmer icons, tighter layout, and removed dividers for a sleeker, more focused experience - New Mute Icons: Replacing switches with elegant mute icons—cleaner and more intuitive Bug Fixes Q-Setting Bug: Fixed an issue where the wrong Q value could be set in rare cases Device Scanning: Improved discovery speed and reliability with smarter caching iPhone Permissions: Added the necessary prompts for iPhones that require explicit mic permissions Crossover Frequency Editing: Now changes are applied only when saved—no more accidental frequency shifts while tweaking Enjoy the new features and stay tuned—more to come! Team Acoustas

• New frequency response chart for the 15-Band EQ, now showing crossover effects • Real-time adjustment of Frequency, Q, and Gain for each EQ filter, including Tone Control

New Features: Frequency & Q Scrolling for 15-Band EQ Fine-tune your system with precision. You can now scroll live around the selected center frequency and adjust the Q value in real-time — with immediate feedback in your choice of RTA software. Custom Labels & Icons for Presets and Channels Organize your setup the way you want. Add custom labels and icons to presets and channels. The number of available presets has also been increased. Save Full Amp State as Text File Quickly save and reload your complete amplifier configuration with a single text file export — ideal for backup or sharing setups. Faster WiFi Connection We’ve rebuilt the WiFi connection stack for Acoustas devices, delivering faster and more reliable connections across both older and newer routers. Now Available Cross-Platform The Acoustas app is now available cross-platform for iOS, macOS, iPadOS — and new to Windows.

- Now you can see the audio source bit depth and frequency rate of the coaxial input