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HiFi News Analogue Test LP : The Producer's Cut
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HiFi News Analogue Test LP
- the Producer's Cut
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"As a response to the lack of newly produced
test records, and due to customers requiring a definitive means of setting
up their vinyl replay systems, the Cartridge Man has, on the back of the
success of his previous test LP, produced an all-new test record. Recorded
onto audiophile quality 180g vinyl, the new version also includes a
full-sized set-up protractor and includes an additional frequency sweep
test."
Best of all, the test LP has both audible and
visible cues rather than a need for test gear. |
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"The 'Producer's Cut' is
the successor to the original HFNRR Test LP, first pressed in 1996.
Len
Gregory, The Cartridge Man, who produced the original version, had over
the years concluded that there were a number of improvements that could be
made to his earlier work which in the four years since it's release had
sold an amazing 10,000 copies around the world.
He went back to Graham
Durham at The Exchange for a new recording session, to re-cut the original
tracks, to add a frequency sweep track and to extend the Pink Noise
tracks.
Then it was off to Pallas in Germany to arrange for production,
their best quality Audiophile pressing on 180gm virgin vinyl.
The resulting mechanical
quality is excellent, flat, stable and quiet, everything that an
audiophile pressing should be!
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In total, there are now
seventeen tracks.
Side one covers channel identification and phasing, pink
noise, and bias settings (Four tracks at increasing amplitudes.
Side two
contains tracking ability bands at the outside, middle and inside of the
disc, cartridge/arm resonance and alignment tests, full frequency
(20Hz-20Khz) test and a residual noise test. All bands are separated by
locked grooves.
The package is completed
with the inclusion of a unique, multi-discipline, alignment protractor, a
truly universal device that can be used to set up all sizes and types of
arm to fine degrees of accuracy, a reprint of the seminal article by John
Crabbe on the theory and practice of arm/cartridge alignment, and copious
sleeve notes to take the user through the set up procedure step by step." |
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Soundscape HiFi Notes :
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Some of the
most important (and famous) tracks here are the biasing tracks (for
anti-skate setting), tracks 6 to 9 on Side 1.
The
tracks that are mandatory to pass are tracks 6 and 7.
Tracks 8
and 9 have grooves that are not cut according to commercial standards.
We find many users setting their anti-skate to pass all tracks 6 to 9,
and as a result ending in frustration in not being able to achieve it,
or end up with very high anti-skate settings or tracking force.
Prolonged
use with wrong anti-skate settings also result in having cantilevers
slant to one side in the long run.
The 8th band on Side 1 is cut higher than
any signal that you will find on a commercial pressing - if the
cartridge tracks this it will track anything (many moving coils don't
make it past band seven).
The 9th band is a "torture" track and if
you whack the playing weight of a cartridge high up, like the
MusicMaker up to about 2 grams (which we do not recommend!), it would
track this band easily, moving coils don't even stay in the groove.
The whole point of this preamble is to
bring us to the point of saying 'so you have a buzz on one/both
channel/s', so what? How
does the music sound? This Record is exactly what it is supposed
to be, a 'Test Record'.
This means that not only can you set up
your system with it but also see / hear the 'outer limits' of
performance as it were; hence, the tests for resonances in both the
lateral and vertical modes.
Anti-skate is at best approximate, at
worst way out. Make sure you manage tracks 6 and 7 and you'll be
alright. If you can manage band 8 without a murmur, that is
great. Otherwise, don't get hung up on it, just enjoy the music. |
The unit of measurement for anti-skate is
the same as that of Vertical Tracking Force. It is usually
recommended that anti-skate force should be the same as vertical
tracking force, at least at initial setup.
Anti-skating figures above the
recommended tracking force, in our experience, means too much
anti-skating applied. We normally have anti-skate figures
lower than the tracking force setting.
It is easier to check excess anti-skate
on tonearms with anti-skate scales, as one can simply compare against
the tracking force arms such as SMEs, Regas, Naim Aros, Linns, etc.
On other tonearms without markings, such
as Schroder and Scheu, it not as straightforward. To get around
this, in addition to the biasing tracks on this HiFi News test record,
we also use the Cardas test record's blank grooves (running at 33-1/3
rpm) to check anti-skating. We have found the Cardas
instructions to be ideal - i.e. correct anti-skate is achieved when
the cartridge slides in slowly towards the record label.
Some claim that using blank grooves is
inaccurate as prolonged use leaves marks on the blank grooves in which
the stylus will track onto. This does not really matter much as
we are only interested in the speed of the cartridge's movement
towards the record label. Or simply use fresh blank grooves for
those who are doubtful.
Some folks believe that the stylus should
be stationary and unmoving when placed on a blank groove, we found
this not to be ideal for us, resulting in too much
anti-skating.
What is the effect of proper (or
improper) anti-skating sonically ?
Read more on this from a great article by Bernhard Kistner at the
Vinyl Asylum forum (with other setup tips). His experience
also suggests that the correct anti-skating is always below the
tracking force. |
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