DSP rack

Precision acoustic processing for headphone crossfeed, loudness matching, and DAC overload protection. Every module is optional and bypassable with a single tap.

Tube voicings: 8
Crossfeed models: Meier, Chu Moy, BS2B
ReplayGain: From file tags
Bypass: Bit-perfect lock

Soften hard-panned stereo on headphones

Headphones send each channel to one ear only. A room never does that. Crossfeed mixes a little of each channel into the other. Three presets follow the Meier, Chu Moy and BS2B designs. Subtle is the gentlest. Natural is balanced. Strong sounds most like speakers.

Subtle (Meier) · Natural (Chu Moy) · Strong (BS2B)

A mixed queue at one level

ReplayGain reads the gain tags in your files, per track or per album. It evens out a mixed queue by changing level only, never by squashing dynamics. Album mode keeps quiet songs quiet within an album. Auto picks album or track for you.

Track · Album · Auto

Eight voicings, not measurements

Harmonic Tuning adds the sound of a valve amp. Eight voicings range from silky single-ended triode to bold push-pull. Four follow tube physics. The other four are our own voicings. Treat them as colour, not a copy of a real tube.

Four follow tube physics, four are custom voicings. None is measured from real hardware.

Stops clipping inside your DAC

Lossy decoding can create peaks between samples. These clip in the converter, even when no single sample looks too loud. The limiter oversamples four times to find them. It keeps peaks under -0.6 dBTP. It switches on by itself when another stage could create them.

Ceiling: -0.6 dBTP
Oversampling: 4x

The numbers, in full

Everything here works in the app today.

DSP modules: Crossfeed, ReplayGain, Harmonic Tuning, true-peak limiter
Crossfeed: Meier, Chu Moy or BS2B
Loudness: ReplayGain: track, album or auto
Harmonic Tuning: Eight tube voicings
True-peak limiter: Catches inter-sample peaks at -0.6 dBTP
With AI Enhancer: Switches off automatically

Shape the sound, or turn it all off.

Four modules: Crossfeed, ReplayGain, Harmonic Tuning, true-peak limiter. Bit-perfect lock turns them off.

Get it on Google Play