Announcement: ASR Will Be Measuring Speakers!

[amirm]

This is what the UI looks like as it scans. Y1 is the signal to speaker, Y2 is what is coming back from microphone:

Fun to watch it all change as the mic position changes. Not so fun is when something goes wrong like the powered speaker losing power.

 

[soundwave76]

’One (small) step for Amirm, a giant leap for audio lovers’

Kudos for this Amirm! I was tempted to use the world audiophiles in my pun above, but as we know, they will most likely disregard this.

 

[TimW]

This is so exciting.

 

[trl]

Of course. As I type this in the frigid garage, the scanner is measuring JBL 305P MK II.

Did you hired a small army in there to help you out?

 

[Wombat]

Good news. All we need now are the AP and Klippel attachments that can measure the unmeasurable effects.

 

[Blumlein 88]

Good news. All we need now are the AP and Klippel attachments that can measure the unmeasurable effects.

He'll have to buy the Audio Metaprecision gear for that. With quantum level processing.

 

[rajapruk]

A very load independent amplifier is important to use, I guess?

 

[amirm]

Did you hired a small army in there to help you out?

No, was by myself sadly. And at the end, the extension cord I was using lost its connection to the speaker cord and all the measurements got screwed up.

 

[amirm]

A very load independent amplifier is important to use, I guess?

Reasonably so.

 

[napilopez]

No, was by myself sadly. And at the end, the extension cord I was using lost its connection to the speaker cord and all the measurements got screwed up.

At least the klippel setup keeps the speaker safe in one position =].

Meanwhile, I very nearly dropped the $2,400 Sonus Faber I measured from 7 feet up in the air. It was precariously balanced on its side for vertical measurements, and though I'd tied it down with a cam strap, I turned my turntable a little too fast and disaster ensued. Managed to catch the speaker before it toppled over (*phew*) but my stand got all bent.

The sacrifices we make for audio.

 

[Dimitri]

How much more trouble would it be to have a sound sample too ?
Although a recording wouldn't necessarily do justice to the speaker itself, it would add another way of comparing them against others and getting a sense of how the measurements correlate to the sound it produces.

 

[amirm]

How much more trouble would it be to have a sound sample too ?
Although a recording wouldn't necessarily do justice to the speaker itself, it would add another way of comparing them against others and getting a sense of how the measurements correlate to the sound it produces.

Sound of what? The speaker playing music in a room? If so, this just does not work.

I do plan on performing listening tests however.

 

[RayDunzl]

Congratulations.

 

[TLEDDY]

Amir has finally lost his mind!

That said, I will go to Patreon to support his madness!!

 

[miero]

Nice!

@amirm is this machine able to compute distortion in GedLee metric?
- http://www.gedlee.com/Papers/Distortion_AES_II.pdf

 

[extenso]

Long-time lurker finally registering and donating. This is such exciting news in the fight against subjective drivel that plagues this hobby and business. Good luck, Amir!

 

[pierre]

Great! I am impressed.

having a public database would be great. We could use it to generate multiple versions of the measurements automatically. For example a simple version, a more extended version and a full version Could make sense.
we could also build a website where you could compare 2 or more speakers together.

 

[Thomas savage]

Well the AP guys will have a shoulder to cry on now the Klippel people are familiar with ' that bloody Amir guy ' .

 

[Gedeon]

You really like to start the new decade with style...

Just hoping the community is able to support this new effort to keep your independence safe enough.

 

[Trdat]

These equally scares me and excites me. The logistics are terrifying as is the time commitment. Amir needs a shop monkey to employ.
Every speaker I have ever owned has come from craigslist so I'm especially interested in classic ones.

I can't stop thinking about the vast number of speakers I would want to see measured. Maybe someone needs to start a list.

NHT, Boston Acoustics, Ohm Walsh, ESS, Magnepan

I have many DIY speakers that also should to be measured, it will in turn help us understand more about DIY speaker making and associated attributes on a measured level.

Logistically, it will be difficult to ship them out. That said our commitment to drop shipping whatever we can will continue.