Another useful Test Disc ..

Posted by flood2 (A) on February 27, 2017 at 15:50:53

In Reply to: RE: If my ART9 sounded like that... posted by John Elison on February 27, 2017 at 09:58:58:

.... to add to the list which is still commonly available on Discogs and eBay is the Ortofon TC002 Test Disc. It has all of the tests that anyone would normally need for technical analysis (apart from a 3150Hz W/F test) plus I find the white noise test (which has RIAA pre-emphasis and primarily for testing phase) incredibly useful for analysing FR characteristics without having to equalise a pink noise test signal. You can also see the exact LF resonance frequency directly. There is also the Difference Tone Test which can be used to estimate stylus wear.

The Ultimate Test LP is missing some essential tests such as tracking ability. However, it is quite useful IF you already have another test disc that covers the other basics. For example - it gives a 0dB reference signal at 1kHz. The frequency sweeps are a bit more sensible than the HFNRR one plus the pink noise tests don't have the response anomalies that my HFNRR disc has. The VTA test tone is also unique, but to be honest, not terribly useful for the average person. I think that SRA is best optimised by ear anyway since the VTA may already be sufficiently mismatched (by cartridge design) so as to render small changes undetectable when analysing the side bands around the 4kHz signal. 28 to 30 degrees seems not uncommon (I measure my JICO SAS styli for my Shure cartridges when deflected as close to this value, as was my Soundsmith'd DL160) which has been confirmed by several cartridge reviews I've seen including for Ortofon and VdH.
Regards Anthony

"Beauty is Truth, Truth Beauty.." Keats

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Follow Ups Full Thread

Topic - This guy is playing the Audio technica Art 9, but..... - Self-Inflicted 18:27:54 02/26/17 (21)

sounded awful, even for youtoob - audio_d 01:27:50 03/02/17 (0)

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RE: My DIY approach to ultrasonic record cleaning - A.Wayne 09:51:52 02/27/17 (0)

RE: This guy is playing the Audio technica Art 9, but..... - A.Wayne 08:27:57 02/27/17 (0)

RE: This guy is playing the Audio technica Art 9, but..... - John Elison 06:52:34 02/27/17 (0)

If my ART9 sounded like that... - tketcham 06:13:25 02/27/17 (8)

My ART9 sounds wonderful and still is not over... - Cougar 15:50:11 02/27/17 (0)

RE: If my ART9 sounded like that... - John Elison 06:55:56 02/27/17 (6)

RE: If my ART9 sounded like that... - tketcham 07:45:37 02/27/17 (5)

RE: If my ART9 sounded like that... - John Elison 09:58:58 02/27/17 (4)

Another useful Test Disc .. - flood2 15:50:53 02/27/17 (0)

RE: If my ART9 sounded like that... - tketcham 12:04:12 02/27/17 (2)

RE: If my ART9 sounded like that... - John Elison 12:22:52 02/27/17 (1)

RE: If my ART9 sounded like that... - tketcham 15:53:21 02/27/17 (0)

Nevermind bright.... - kuma 21:59:10 02/26/17 (2)

RE: Nevermind bright.... - John Elison 02:19:48 02/28/17 (0)

CJ MV55 paired with Maggies perhaps? - JoshT 06:26:56 02/27/17 (0)

RE: This guy is playing the Audio technica Art 9, but..... - Joe Backer 19:11:11 02/26/17 (0)

RE: This guy is playing the Audio technica Art 9, but..... - dirtyvinyl 19:02:14 02/26/17 (1)

RE: This guy is playing the Audio technica Art 9, but..... - raya 05:49:45 02/27/17 (0)

Follow Ups

Another useful Test Disc .. - flood2 15:50:53 02/27/17 (0)

Another useful Test Disc ..

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