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Glacier EQ

Cross-platform parametric EQ editor for USB DACs. Talks to hardware over HID, edits EQ locally, and works entirely offline.

Links

• Main Repository — Source code, issue tracker, and releases.
• Web Version — Use Glacier EQ directly in your browser.

Documentation

• CLI Reference — Full syntax and examples for the glacier-eq-cli tool (profiles, AutoEQ, and direct hardware control).

GUI Quick Start

1. Plug in a supported DAC.
2. Open Glacier EQ (desktop, Android, or web).
3. Select the DAC and connect.
4. Pull the current hardware state.
5. Edit preamp, bands, filter type, frequency, gain, and Q.
6. Push changes back to the device.

Supported Devices

If your DAC appears here, plug it in and check the device picker. Family match means the USB family looks compatible, but the exact model still needs more hardware reports.

Status	Device
Confirmed	EPZ TP35 Pro
Confirmed	TRN Black Pearl
Family match	Audiocular Aura
Family match	Fosi Audio DS2 / iBasso DC04 Pro
Family match	JCally JM20 / Savitech Generic
Family match	JCally JM20 Pro / Alt Savitech
Testing	Moondrop Dawn Pro / Dawn Pro 2
Testing	FiiO JA11 / KA Series
Testing	JCally JM12
Testing	Truthear KEYX