It has been quite some time since my last article on this blog. Quite a busy life (but that busy life pays this hobby, anyway). I tried to spend sometime...... Read More

Finally they are arrived – two custom toroidal transformer from Primrose Audio (also known as Richard Sumner Technology). This is Canadian based company specialized in manufacturing the toroidal transformer. For...... Read More

Just to kill the curiosity, I hooked up ASUS Xonar Essence One to my QLS QA-660. Seemed the process didn’t click that easy. Xonar Essence One failed to capture the...... Read More

QLS QA-660 comes with a standard PCB mount multi-secondaries transformer. This is probably not a bad transformer, but most of the time I would be more comfortable with a separate...... Read More

I’m still waiting for a ‘proper’ DAC, but I think it’s quite interesting to see how this new QLS QA-660 performs against its elder brother, the QLS QA-550. So I...... Read More

It’s been a while since I bought my QLS QA-550. Although I haven’t played much with it, but in overall, I like the quality of the player. Now, the new...... Read More

It’s been a long time since I bought this QLS QA-550 – a year or two. Unfortunately, I haven’t had enough time to try this. During this lazy Sunday, and...... Read More