Now move to either side of, and back and forth of the loudspeaker, in big dramatic sweeps. After all it’s big bass waves we are listening to here. Envision the size of full on North Shore surf, moving at the speed of sound, impinging, disrupting, moving through and bouncing off all the boundaries in your home. Yes, bass waves are big.

…to concern yourself with how the snare drum was recorded, and the rest of the drum kit, the vocals, the strings, brass, keys… forget it, at this point you know nothing of the absolute phase relations of the recording and very likely a waste of your time to consider; a rabbit hole long abandoned by rabbits.

So what does it mean to have an absolute polarity recording, of Eagle-Woman playing the Navajo log drum? It would mean that the recording in your hand will cause positive voltage correlative to the original acoustic events compression of air…

What bears and in which woods? …Let’s take a page out of Harry Olson’s book: Music, Physics and Engineering. Imagine a balloon inflated and tied. Inside the balloon the air pressure is higher than ambient…

Nearly all of us want full, rich, big, round sound, with a stereophonic sound-field that is swim-through-it dense—we want realistic and expansive.

Open but throttled. Yes, we are back to something that at least feels like normal here at Zu, and we’re much closer to full production. Still, our strict COVID-19 protocols remain to help safeguard…

Soul Supreme cabinet process, a basic how it’s made gallery.

We are open under sticked personal and industrial hygiene protocols to help in controlling the spread of COVID-19; safeguard us, the people we directly effect and our means to contribute and earn. While we are…

The Swift Building was already old and tired in 1986 but there was a ton of cheap space, just what was needed for setting up my first big speaker workshop—well, that and being in a part of Ogden where noise was not a concern. I was sixteen…

Attention all planets of the Solar Federation. Dominance and Definition Series Six approach.

…the Denon DL-103 featurs a cutting lathe sized conical stylus, which seats nicely from top to near-bottom and is less sensitive to left/right angular differences; and that it’s the right size (not teeny-tiny) it doesn’t skate around in the bottom of the groove high-frequency hunting. This also makes for a far less abusive…

Loading resistors allow Zu loudspeaker users to experiment in ways most other speaker owners cannot.

Harvey and James. Two years ago those two held the rest of us hostage—for the whole year…

Hello. My name is Chris Bieler. I work at Panavision NY—film / digital camera / lens supplier. I have a modest, vinyl centered, 2-channel stereo system, and there I recently had an extraordinary, life changing experience.