Recent content by johnnyx

It would be fine to drive a pair of analogue VU meters, to give an indication of the level of a digital signal.

The metal is more likely to be a zinc alloy, such as Zamak, which can be cast into complex shapes, like the toy cars of my youth.

Amir - you will simply encourage those who use an actual subwoofer to enhance their headphone-listening experience with some real physicality.

The waveguide on the tweeter makes all the difference. I thought a waveguide would be difficult to implement, but not any more. Low cost too. I should throw away all my flat baffle tweeters. They are all obsolete.

I wonder how much the low bass response is limited by the electronics, because a big electrolytic coupling cap is - well - big, and there isn't much room in there. This was a problem with the usual "Walkman" that I used to see. Single supply rail battery power mandates an output coupling cap...

YouTube lawyer Steve Lehto has advice for the RV lady; "DON'T BUY AN RV", because of the shady practices in that industry, see link below. It would be a shame if a lawyer's advice to the HiFi industry was; "DON'T BUY SPEAKERS". Don't Buy an RV

I think this is complementary to the "Right to Repair" advocacy. Manufacturers want to control repairs to their products, just as they want to control reviews of their products. Replace a broken screen in your phone and it now becomes counterfeit, and illegal, according to Apple. There are...

The Institute for Justice could offer free legal advice, even if they don't take the case. They do great work, supporting people who cannot afford a lawyer.

It's probably fine for background music in a restaurant. I know some used Bose speakers and were happy.

I worked for a company that made a line-level isolated audio distribution box for studios, which used transformers. The transformers were fairly large and heavy toroids, and there was an additional feedback winding. The feedback winding was used to include the transformer within the linearising...

JPS is the brand behind Abyss headphones.

Balanced-armature transducers were used in the first telephone handsets, but moving-coil transducers have better performance. To hear YouTube reviewers talk about balanced-armatures in IEMs, you would think they were a great new innovation.

Audiophiles are obsessed with differences, especially regarding which is the best. I have two different systems in two different rooms, and I am struck by how similar they sound

What is the mystery surrounding electrostatic energisers? High voltage power supplies and high voltage amplifiers aren't that mysterious in themselves. Has anyone built their own?

It's 13cm, from the manual, which is still available from the TEAC website.