ONE-TIME SUPPORTER PASS
Unlock the complete ECHO experience in one purchase.
Upsampling, SDM, Mobile, cloud-drive features and every theme in one purchase, plus early access to Mobile and Beta builds.
PRO PERKS
From audio processing to cross-device listening, Pro brings advanced tools, themes and official plugins together — and keeps ECHO growing.
Pick 2x, 4x or higher targets per 44.1 kHz / 48 kHz family, with tunable filters, quality and CPU / CUDA strategies.
Oversampling, FIR filtering and Sigma-Delta modulation turn PCM into 1-bit DSD for a compatible DAC.
Pair the Android ECHO Mobile app, share one library, and try the mobile and Beta builds first.
AirPlay / DLNA / HQPlayer / radio / live — carry the sound to more endpoints.
Unlock ECHO cloud-drive and other online abilities with ongoing costs; the library stops living on one machine.
Every theme and official plugin, plus the Pro group for purchase and setup support.
Purchase, activation and HWID binding are covered in the ECHO Pro guide .
STEAM KEY
Switch between the ECHO base key and Pro DLC in the claim window. DLC claims require the base order, DLC order, and bound QQ together.
Submit order
STATUS CHECKING STOCK Steam keys have not arrived yet. Eligibility checks are ready; an empty inventory never consumes or binds your order.
DLC CHECK SLOT Switch to Pro DLC to add the base-order check. A base claim only needs the order number and QQ.
Enter the complete order number and your own QQ number. We verify order status and eligibility.
Your order number and QQ are sent only to the official ECHO service; the same bound pair may display its key up to 5 times.
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Unlock the full Pro experience — Mobile link, early Beta access, every theme, and Pro community support.
ROCK SALUTE
On the Pro journey, we salute the bands and albums that changed the world — prog, classic and art rock, one legendary record at a time.
Now spinning
Genesis
Selling England by the Pound
Firth of Fifth
The path is clear, though no eyes can see the course to tread.
English progressive rock · Gabriel-era classics
Released 1973
For tribute only — no commercial affiliation with the artists or labels named above.
L Press L for a rock lyric shower
