Uploaded December 2025 | Updated September 2026, 1 week ago

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This is a free video for all! I am comparing the sound and performance of two tape formulas available from RTM (Recording The Masters). They are compared exhaustively with test tones and with recorded music. Ultimately, you are invited to participate in blind listening tests to see if you can hear the difference and if you have a preference between the two.

Here is the link to the Blind Listening Questionnaire - docs.google.com/forms/d/e/1FAIpQLSfDcI0RC94vIU8ew75mmzkRgm3VuyfkFt_tr_WrgA-BPPn0EQ/viewform

IF YOU WANT TO GO DEEPER WITH THESE LISTENING TESTS - WATCH THIS QUICK VIDEO FOR INSTRUCTIONS AND A LINK TO DOWNLOAD THE FILES
youtu.be/q5Cv0u6H7Js

CHAPTERS
00:00:38 Intro
00:04:25 About The Setup
00:05:02 Analog Level Calibrations
00:06:41 First Quick Measurements
00:12:12 recalibrating the machine for S900
00:15:30 The Formulas Are Physically Different
00:16:59 Lets See The Measurable Differences
00:21:59 Calibrating for +9
00:25:15 +9 Calibration Comparison
00:30:34 Lets See The Whole Spectrum
00:35:54 The Music Recording Setup
00:38:26 The Digital Vs. Analog Headroom Problem
00:45:09 Let's Hear Some Music!
00:54:41 A/Bing
00:55:44 Blind A/B Listening Setup
00:56:24 Listening for Differences
01:04:17 Let's Look At The Meters for the +10 Level
01:05:12 Blind Listening Test #1
01:07:58 Blind Listening Test #2
01:09:49 Blind Listening Test #3
01:11:57 Blind Listening Test #4
01:15:27 Final Thoughts