Each vertical division is 10db, with the frequency plot going from 20Hz at the far left to 20Khz at the far right. All frequency response measurements were made at -20db.Īs a refresher, the picture to the right shows how to read our Soundtech 1510A tape analyzer. We then ran frequency response tests of the more popular brands of tape that we had on our test bench. We set the recording and playback to be as flat as possible at both speeds with ATR MasterTape, tweaking the bias and eq controls as required. The tape deck is running at 7 ½ and 15 IPS, and is a ½ track machine, using the full width of the tape in one direction. Our test setup is a good working Otari 5050 Mk 1 with good heads, and a Soundtech 1510A tape deck analyzer. Disclaimer: This is by no means a definitive test between tape brands and models, however it does show some of the basic differences between the various formulations.
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