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Hi
Having missed a lot as being somewhat new here, how "subjective response" was carried with such accuracy so close to manufacturer's published response ??
Jack L
Model 6: Four-way system with 18" woofer, 8" cone-type midrange unit, and horn-loaded compression tweeter and supertweeter. Frequency range: 30Hz20kHz. Nominal impedance: 8 ohms. Power capacity: 35W program, 70W peak.
Dimensions: 30" H × 32" W × 17½" D.
Price: $300 (1964); no longer available (2020).
Model 2: Two-way system with 12" woofer and horn-loaded compression tweeter. Frequency range: 30Hz15kHz. Nominal impedance: 8 ohms. Power capacity: 30W program, 60W peak.
Dimensions: 14" H × 25 W × 13½" D.
Price: $120 (1964); no longer available (2020).
Common to both
Manufacturer: Electro-Voice, Inc., Buchanan, MI (1964); Electro-Voice, a division of Bosch Communications Systems (2020). Web: electrovoice.com.
Hi
Having missed a lot as being somewhat new here, how "subjective response" was carried with such accuracy so close to manufacturer's published response ??
Jack L
Having missed a lot as being somewhat new here, how "subjective response" was carried with such accuracy so close to manufacturer's published response??
I wish Gordon Holt was still around to answer your question - he passed away in 2009 - but you could check out his 1966 article on subjective loudspeaker testing at www.stereophile.com/content/subjective-loudspeaker-testing.
John Atkinson
Technical Editor, Stereophile
...... the whole story." quoted J. Gordon Holt 1966
As of 2020 today, I beg to disagree Gord's above statement dated 1996.
Spec is to tell us consumers how an audio equipment is design/built to whatever standard. It bears very very minute, if any at all, reference to how our ears/brain will percieve.
Again to support my comment above, I quote Cheever's audio engineering Master's thesis: a tube power amp measured 5-10% THD sounded much better than a solid state power amp with more output power, measured 0.002%.
This sonic result was later verified by another party with ABX double blind test.
Listening is believing
Jack L
...... that the system in question sounds smoother and cleaner than any other we've heard to date, it reproduces without apparent attenuation (and very cleanly) bass notes that, according to the musical scores,.." quoted J. Gordon Holt 1966
What amazed me is Gord & his team could draw up a frequency response curve by LISTENING only, so close to the manufacturer's published response. How could they do so so accurately ???
Hopefully, they did it without first reading the published curves !!
Jack L
....... more musical sound from most loudspeakers than any others" quoted J Gordon Holt.
I still keep my ST-70 power amp. fully upgraded, on back burner. Yes, St-70 was an icon of quality sound back then. But after half a century today, we find St-70 needed upgrading to cope with the advanced audio technology todate.
Now my ST-70, after my upgrade, reproduces "elicit CLEANER, more MUSICAL sound" to my critical ears of 2020 sonic standard.
Listening is believing
Jack L
I'd ask him what he means when he says : we.
"We" heard this, "we" discovered, "we" felt, "we" should've, etc....
I kinda thought that he had a group that he was speaking for, hence the ever present "we".
but lately,
I'm socialising with a Brit. that Captains a Single Handed Sailing Sloop who traveled the world, this man says 'we' when he refers to himself alone on his 31 foot boat, he says "we" is a "Royal We", suggesting the person alone and God. The expression is ancient, apparently it belongs to a Sovereign type person such as a Boat and it's Captain. Hmm.
I wonder if Mr. Holt was an a sovereign soloist but I;ve always felt that he was a team person.
Guess I'll not know.
Tony in Venice
ps. I'm surprised to read that ElectroVoice is a division of Bosch!!!
Power Box Jobsite AM/FM Radio/Charger/Digital Media Stereo with Bluetooth®
https://www.boschtools.com/us/en/boschtools-ocs/radios-pb360c-134421-p/
The Model six has FANTASTIC bass, and overall might be better than many multi thousand dollar speakers from the last few decades. They remind me of the Klipsch Horn ,but with actual deep bass!