Call Us: 1-800-PSAUDIO

Treat the cause or the symptoms? 13

Posted 7 years ago

In light of all the response I got from the latest video of the Helmholtz Resonator I thought it’d be ok to take a short break from our current thread and delve into this for a bit before returning to Direct Coupling. Many of you requested links to the calculators we used to determine the […]
Read More

Jelly rolls 3

Posted 7 years ago

I’ve just posted Part 4 of the video series on building our Music Room and installing the Infinity IRS. This latest video discusses in some detail Helmholtz Resonators and how they work. You can watch the video here. If you’d like to know when I post a new video, be sure and subscribe to my […]
Read More

If you have to ask ….. 1

Posted 7 years ago

We’re discussing audio blocking capacitors; elements in the signal path that our music has to run through to get to our ears. These capacitors block DC and let AC pass through – AC being the essential element of music – DC is needed for things to work but we do not want it in our […]
Read More

Capacitors 1

Posted 7 years ago

I wrote in yesterday’s post about Direct Coupling audio circuits; a practice that started in the late 1970’s and continues through today. Direct coupling describes a direct connection between two pieces of audio electronics without an intermediary component such as a capacitor or transformer. Why should that matter if there’s a capacitor in the signal […]
Read More

Direct coupling 3

Posted 7 years ago

In the early days of solid state electronics for high end audio just about all preamps had capacitors on both their inputs as well as between their outputs and their mating power amplifiers’ input (and the power amp inputs had them as well). Most tubes circuits of the day required them but solid state designs […]
Read More

Ringing 3

Posted 7 years ago

If you stimulate something it responds back in kind. Strike a bell and it rings. Pass a transient through an audio circuit and it too rings giving you more than you bargained for in the process. Loudspeakers ring, microphones ring, just about everything in nature responds back when you change its state. We don’t see […]
Read More

Just pluck it! 1

Posted 7 years ago

Pluck or strum a stringed instrument and you get sound from the vibrating strings amplified by the attached hollow box. As we have mentioned earlier the sound of that plucked string depends certainly on the type of string, its length, tension and sound of its mechanical amplifier, but more so on how that note begins […]
Read More

Gas pedals and plucks 9

Posted 7 years ago

I’ve always been fascinated that a simple push of the automobile’s accelerator pedal engages a huge and powerful machine into action. Just think of all that’s happening when you press that pedal – forces far greater than the slight pressure of the pedal are awakened and the beast springs into action. So it is with […]
Read More

Music loving animals 5

Posted 7 years ago

Yesterday’s post about the nature of transients on musical notes start and stops raised a few eyebrows from readers; not because of the subject at hand but the comment I made about pattern recognition amongst sentient beings. Several of you asked me if I really consider animals sentient and able to recognize patterns as humans […]
Read More

Lion's roar 9

Posted 7 years ago

I mentioned yesterday that we recognize what type of instrument is playing a note not so much by its harmonic content – which most of us believe is what distinguishes the sound of one instrument from another – but rather by its transient nature. I think this is a fascinating subject and intend to explore […]
Read More

Transients 8

Posted 7 years ago

I have been reading a couple of really interesting books, as of late, about music and how it works; perfect reading for a nerd engineering type. One of the more interesting aspects of the read is the mechanism our ear/brains use to recognize what instrument is playing the notes in music. We all recognize that […]
Read More

Slap echo 7

Posted 7 years ago

I thought you might enjoy a quick update on the progress of the new listening room at PS. We’ve cleaned out the old room and construction has begun on the new. Once cleared there are a number of issues that now, while we have a chance, we’re going to address. One of those issues is […]
Read More

Wings save the day 4

Posted 7 years ago

For those of you interested in following the video story of the IRS installation, Part 1 is available for viewing here:http://youtu.be/VOmyHGzG_lI This shows the delivery of the beasts and the teardown of the old music room. What’s the old saying about being on a “wing and a prayer”? The designers of the Infinity IRS dipole […]
Read More

Dipole loudspeakers 15

Posted 7 years ago

Let’s cover dipoles today, what they are, why I like them and then we’ll move back to the rebuilding of the new PS Sound Room as we ready ourselves for the most famous dipole/monopole hybrid of all time, the legendary Infinity IRS that we’ll be installing soon. BTW, I posted the first video of this […]
Read More

Bipolar Mirage 2

Posted 7 years ago

The easiest way to picture how a bipole loudspeaker is configured is to imagine two full range Monopole speaker boxes back-to-back. Sound comes out of both the front and the back of the combined boxes in this configuration and, if you connect them in-phase (red to red and black to black) you get a bipole. […]
Read More

Sealing your fate 6

Posted 7 years ago

My favorite loudspeaker box for bass is a sealed one; not being a fan of ports, passive radiators and transmission lines as we covered over the last few days. A sealed box simply means that the loudspeaker driver is trapped in a box with no air vents or holes in it at all. This has […]
Read More

Folding up 4

Posted 7 years ago

My guess is that not many of you have heard of a folding transmission line in a loudspeaker, much less ever heard one working. The late Bud Fried, from Fried Audio (pronounced “freed” as opposed to what one might do with eggs), was a big proponent of the design style to get bass out of […]
Read More

Passively radiating 8

Posted 7 years ago

Yesterday we covered the basics of ports in speaker boxes that would otherwise be called sealed boxes were it not for the hole and associated tube punched into the speaker box to extend the bass. Port calculations used to be a black art but today the science is well known and there are many online […]
Read More

Ports ahoy! 3

Posted 7 years ago

I am in the beginning of a new series that will give my readers an overview of starting fresh with a new sound room: the steps I am taking to build the room, the decisions being made and why. I mentioned that the Maggies I am leaving and the Infinity IRS I am adding to […]
Read More

First steps 9

Posted 7 years ago

I promised a series that included a video of the setup for our new reference system in the PS Listening room – and I will deliver on that promise for those of you interested in following along. Building a reference level sound room is no small task and, while a fun project, it’s also one […]
Read More

Treating the room or the speakers? 6

Posted 7 years ago

The main listening room at PS Audio is approximately 16 feet wide by 35 feet long – not a huge room but not too small either. Left bare and with nothing more than just the loudspeakers and equipment to power them in place, the room is an OK venue for sound reproduction. Add room treatment […]
Read More

Stepping back 13

Posted 7 years ago

As Audiophiles we constantly search for what we consider the holy grail; reproducing the sound of live music in our homes. Yet is it even possible given that most recordings don’t actually contain enough live information that helps us identify the recording space? We can have the very best equipment in our system but if […]
Read More

Big air 24

Posted 7 years ago

Some of my readers may remember I have the insanely big Infinity IRS loudspeakers on the way from Vestal New York. News that I am changing my reference system to that of a 30 year old loudspeaker has raised more than a few eyebrows amongst you and some even question my sanity. Well, having lived […]
Read More

The finishing touches 14

Posted 7 years ago

The new power amp I’ve written about is finished and it’s everything I ever hoped for in an amp. Unfortunately there’s only one in the world at the moment and more won’t appear until this summer. The process of going from the one to the many is tedious, laborious and so completely necessary that I […]
Read More

Massed strings 14

Posted 7 years ago

One of the most difficult to reproduce bits of music is massed strings, whether they be cellos, violas, or violins. It takes a complete and near perfect chain to get these right and they represent to me the biggest challenge and what I always turn to for the “final test” when designing product. Power supply […]
Read More