Nagra Archives 08/30

Nagra IV-SJ - Stereo Nagra for instrumentation and logging. Pots are replaced with selectors to set gain in precise steps, no limiters, and when present, the microphone inputs are for high-voltage unbalanced instrumentation mics rather than low impedance balanced with T-power and phantom.  Amazing frequency response specification of 25 Hz to 35 kHz at 15 ips-38 cm/s, Wow and flutter: 0.05% (15 ips). 

You can also analyze very low frequencies as the IV-SJ has a 10:1 speed range with the 4th speed adaptor, from 1.5"/s to 15"/s, so you can analyze 2.5Hz signals by playing translation across this speed range.

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