The Ultimate Analogue Test LP

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The Ultimate Analogue Test LP - Vinyl Record

by Analogue Productions

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$39.99
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Product Code:
ACSO-APO-1
Label/Make:
Analogue Productions
Genre/Model:
Rock
Description:
180 Gram Audiophile Virgin Vinyl LP - Sealed
UPC:
753088700118
Editors Choice 2011 Editors Choice 2010 Editors Choice 2009 Editors Choice 2008

Analogue Productions set out to produce the ultimate test record.

We’ve consulted many experts in the field, including mastering engineers, audio experts, turntable experts and audiophile listeners, to create a test record that's never been made before. When Barry Wolifson from Sterling Sound in New York City called us with the same idea we had been thinking about – that being to create the ultimate test record – he and our audio expert Clark Williams began to brainstorm and research ideas until they were both completely satisfied with what should go on the record.

Most of the test records in the past have been made to test a variety of equipment. This test record excludes silly cannon shots, typewriters, voices on one channel and other useless fluff. This one specifically addresses your turntable and cartridge. It’s designed to provide the basic test signals necessary to calibrate a turntable or cutting lathe as simply as possible. Most of the signals have specific implications, but it is certainly possible to use them in any number of novel ways.

This record was mastered and cut on a Neumann VMS 80 lathe at Sterling Sound and pressed at Record Technology, Inc. on high-quality, 180-gram virgin vinyl.

Side 1
General Reference Level
This 1 kHz reference tone will allow you to establish a “base level” for all measurements. Track 1 1Khz reference tone 7cm/s Mono, in phase (Lateral)
Basic reference for all measurements, adjust meter for maximum convenience (in the studio 0VU). Adjust preamp channel balance for equal output. Also used to check the offset angle of the photo cartridge; L&R signals should be exactly in phase as displayed on an oscilloscope.

Azimuth Adjustment
Track 2 1kHz reference level Left channel only
Measure Right channel output.
Track 3 1kHz reference level Right channel only
Measure Left channel output.
The object is to sit the stylus exactly perpendicular in the groove.
Twist cartridge about its radial axis until the measurements from Track 2 and Track 3 are equal or very close to equal for both channels.

High Frequency Adjustment
Tracks 4, 5 and 6 are used to calibrate the RIAA high frequency equalizer of a phono preamp. This will be used to calibrate a mastering lathe’s phono preamplifier or any phono preamplifier that has these adjustments.
Track 4 1 kHz tone at -20 below reference level, Lateral
Reference for High Frequency test.
Track 5 10 kHz reference tone at -20dbu, Lateral Adjust the high frequency until the output level equals that of Track 4.
Track 6 1 kHz to 20 kHz sweep at -20dbu, Mono (Lateral)
The AC millivoltmeter reading should stay constant across all frequencies. There are a number of factors which can affect frequency response, including cable capacitance, cartridge loading, tracking force and worn parts. Because of this, it can be difficult to achieve perfectly flat frequency response. Sometimes by making small compromises in the 10 kHz adjustment, a better overall frequency response can be achieved.

Low Frequency Adjustment
Tracks 7 & 8 are used to calibrate the RIAA low frequency equalizer of a phono preamp.
Track 7 1 kHz to 20 Hz sweep at 0 VU (Lateral)
Play Track 7 and measure the output with your AC millivolt meter.
Ideally, the output will be flat across all frequencies. When viewed on an oscilloscope, the amplitude would remain constant during the frequency downsweep.
Track 8 100 Hz reference tone at 0 vu (Lateral) Adjust LF Eq to reference (which is your reading from Track 1).

Track 9 VTA adjust
This is an IEC intermodulation distortion (IMD) test signal; 60Hz & 4kHz 4:1 ratio.
Using an IMD tester, adjust VTA by raising or lowering the tonearm for minimum distortion.

Track 10 Standard Wow & Flutter test signal; 3150Hz The Wow & Flutter meter will give dynamic speed variations as a percentage deviation from nominal.
Also, the frequency counter should read exactly 3150 Hz for nominal speed. You can use the Hz function on your multi-meter (if so equipped) to verify speed here as well. You can also use to find the measurements at 45RPM. The correct reading at 45RPM would be 4253 Hz (45/33.33) x 3150.

Side 2
Track 1 Anti-skating test; 315Hz amplitude sweep to +12dbu (Lateral)
Signal should remain clean in both channels up to the highest level, both audibly and as viewed on an oscilloscope. In case of distortion, increase anti-skating force or decrease anti-skate until breakup occurs equally in both channels. The left channel information is inscribed on the inner groove wall, the right channel information, on the outer groove wall. Because of the offset angle of a pivoted tonearm, a constantly varying vector force biases the arm towards the center of the record causing the stylus to lose contact with the outer (i.e. right channel) groove wall. Both linear and modulated groove velocity, tracking force, stylus profile, and vinyl composition are contributing factors. The anti skating force attempts to ameliorate this by applying an opposing similar force.
It is also accepted that the overall force vector increases as the tonearm approaches closer to the spindle or end of the record.

Track 2 Pink noise lateral
Track 3 Pink noise vertical
Used for cartridge “demagnetizing”
You can also use this track to loosen up the cantilever’s suspension to help break in a new cartridge. Play these tracks five to ten times after every 300 hours of normal LP playback.

Track 4 1kHz @ reference level, vertical This out-of-phase signal should cancel to nothing when summed to mono.
Any signals still present are distortion artifacts, lack of channel balance, or timing (phase) anomalies. This test can be a second confirmation of anti-skate adjustment.

Track 5 1kHz to 10Hz sweep @ -20 below
reference level, vertical Resonance anomalies in the tonearm / cartridge interface will show up as amplitude peaks and dips as the frequency sweeps down.
Once again, by listening in ‘Mono’ it is easier to hear the distortion artifacts.

Track 6 Silent groove for bearing rumble and table isolation
During playback of this track, nothing should be transmitted from the turntable to the speakers. Replay the track and gently tap on the rack or base that the turntable is resting on. There should be little or no thump transferred to the speakers. This track will help you experiment with turntable isolation methods and products to be able to get the most out of your playback system. You may want to use a closed or sealed headphone for best listening results, or a stethoscope on the plinth.

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VINYL RECORDS

Vinyl records are able to capture the purest quality of recorded music in true form. This is possible because the initial recording is captured on an analog source (usually tape) for the ultimate in High Fidelity sound, it is then pressed onto virgin vinyl. Analog recordings capture the bottom end (or bass) while adding sweetness to the high end (or treble) better than any digital recording ever could. Analog systems are still commonly used before they are digitally transferred to CD. This means that the sound then is altered in the transfer process when CD's are produced. The word fidelity means accuracy and faithfulness. High Fidelity sound is faithful to the original sound made by the artist, capturing maximum accuracy of what was intended for the listener to hear. Vinyl records capture those sounds for the ultimate High Fidelity listening experience!

180/200 GRAM Vinyl LP

These vinyl records are produced with 180 or 200 grams of high definition premium grade virgin vinyl. This is a higher quality audiophile pressing than the typical vinyl record of 100-120 grams. These limited edition LP's are manufactured with the hi-fi enthusiast in mind. A 180 or 200 gram LP is sometimes also referred to as an audiophile pressing, there is a higher bass response and an even warmer High Fidelity sound. 180 or 200 grams LP's are typically manufactured in limited amounts and are considered collectibles, commanding a higher price.

VINYL REISSUES

Typically, a vinyl reissue is a repressing of an original LP, usually extracted from the recording's master-tapes. In some cases, reissues are remastered to lower surface noise and improve overall sonics. Reissues help preserve the music of an original recording, especially when original LPs become unavailable or can no longer be found. Reissues can be pressed on a variety of thickness from 150 gram to 200 gram and offer a great opportunity for records collectors to own many classic recordings.

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