I have owned a Lehmann Audio BCL for over a year. This may not be the correct place to post regarding this amp but the upgrade mod that I have performed will apply equally to the Lovely Cube clone. I use Sennheiser HD-650s but have also used HD-800s and it is already well known that the...

Replacing 7 electrolytic capacitors is just a start with an audio upgrade. The actual audio upgrade modification changes/adds up to 25 parts depending upon the circuit board revision. Thorough listening tests with a wide variety of different music has shown the OPA2604 to be an excellent all...