Dear Head-Fiers, A friend of mine needs a hearing aid. He got problems with it. The audiologist  first tried an Universal IEM, later on a Custom IEM. In both cases he (the audiologist) drilled a second hole through the tip to avoid air pressure in the ear canal.  I have never heard of a second...

I use ceraball isolation feet under my PS Audio GCHA headphone amplifier. My ATH-A2000X headphone sounds more airy, has slightly more bass, and the soundstage increased. I don’t know why. The manual of the GCHA said: this amplifier can benefit from isolation feet. I have some Ceraballs and I...

Does the use of an USB connection to my computer on a headphone amplifier have influence on the RCA connection (sound quality)? I own the GCHA (automatic) and an X-CAN V8 (input selector). Regards

Has anybody compared the MF X-CAN V8 with the PS AUDIO GCHA? I compared the GCHA with the V3 The GCHA sounded more detailed and had a crispier bass. But the difference was not huge. I want to buy a second amplifier for my wife. That could be the V8. Regards

Since 14 days I am the proud owner of an Audio Technica ATH-A2000X After ± 100 hrs. of burn-in I can tell you: 1. It sounded like an ATH-W5000 without colouring (however: I was used to it) 2. It sounded like a Stax Lambda Signature with an acceptable soundstage. 3. It sounded like an open...