SEMI-OBJECTIVE PHONO CARTRIDGE MEASURING FOR REAL COMPARISONS
When I read reviews of cartridges in almost any so called audiophile journal
I read of sound stage and gritty and you name it. Reviewers
may tell you how their favorite Rock LP sounded so much clearer or
whatever. However, the instruments could have beenn electronic
and/or produced audio from speakers, or from some sort of
electro-mechanical transducer. When the group performs live, you don't
hear vibrations from hand induced mechanical woud sheets, or skins, or lips
pressed against a mouth piece, but loudspeakers. So if they change
speakers their sound will be different. I humbly suggest that
so-called acoustic instruments are the only way to test hifi gear.
I also cannot understand how perfect their memories are of sounds produced
minutes apart. I use a method that uses human hearing has the measuring
device and objective procedures as the data generator.
To actually perform listening tests of various cartridges is much more difficult
than you can imagine. If you just play the same record for each, you have to
play a short piece. When you change cartridges and adjust the tracking force,
that takes time. You have to adjust the volume to be exactly the same as that
of the other cartridge. During all those gaps, you will loose memory of the
sound. Doing this with two is near impossible, and three or more is even more
impossible.
The only sane way to do it is to use several records of different genres and to
record them in highest quality possible onto a computer. Do not use Pop or Rock
as much of what you may be hearing is are electro-mechanical transducers. Then
every track should be normalized in volume, and every listening sample the exact
same length. You should then burn a CD or 24/96 DVD with track markers. Now you
can instantly compare each cartridge's sound. To facilitate this, you should
pick one as a reference. So sample 1 vs reference, sample 2 vs reference. That
simplifies it; one versus one. Jot down which SOUNDS THE MOST REALISTIC using a
simple method, like +/- 1, 2, 3. Stick to your criterion. Do that for all
cartridges and of, say, 5 different records. Now you will have real listening
test data. You should average all the record date to one number for each
cartrige. Anything less is just vague impressions, confused memory and vivid
imagination. You are using real human ears, listening objectively.
I sent such a test disc to 3 people who had a combined live music listening experience of 150 years and were long time audiophiles. I cannot vouch for how they chose to use the disc. I included a simple data collection sheet. Just press the button and right down a number. Most reported that the lowest cost cartridge with near the poorest measured frequency response had the best sound. Of course, we are leaving out the loudspeakers used. That complicates things does it not?
I still trust my results as my system actually measures fairly flat at my usual
listening position. As a result my of choosing the most real
cartridge that I have ever heard in my life, I measured its frequency response.
It was also the cartridge with the most flat frequency response that I have ever
measured! The results from the aforementioned respondents did not
correlate in anyway with how they rated the cartridges. So, this may
demonstrate the value of that which you may read in many audiophile reviews.