Finally: a "Plug & Play" Studer A80 Repro Card that transforms the legendary Studer A80R/C Master Recorder into the world's finest Magnetic Tape Music Reproducer.
All direct-coupled discrete transistor class A circuitry, Repro head input to Front Panel single-ended (RCA) output for the purest possible sound.
Two precision balanced transformerless (TI DRV134) outputs:
No capacitors anywhere in the signal path except for a single high quality precision polypropylene capacitor (Dielectric Absorption <0.05%) to set LF and HF EQ turnover characteristics (NAB/CCIR/AES/OTHR), a single similar polypropylene capacitor to set Repro Head-/Wavelength- Model correction at the Low Speed, and a single similar polypropylene capacitor used in the DC servo. Time-smear effects all but eliminated.
NO shelving or parametric Bass and Treble corrections (i.e. "Tone Controls") employed for EQ adjustment and calibration, realizing near-ideal time domain response.
Available in 15/30 ips and 7.5/15 ips models, each with Four Switch-Selectable wavelength-optimized Equalizations built-in:
"OTHR" offers 15 ips AES, 10uS turnover, or speed independent FLAT (i.e. UNEQUALIZED) characteristics as standard offerings. Let us know if you have other EQ requirements.
HS Gain, LF- and HF- EQ calibration adjustments for High Speed (30 or 15 ips), with modeled Bass and Treble corrections applied for Low Speed (15 or 7.5ips) linked to the High Speed calibration settings, and LS Gain.
Studer A80 Repro Card Production Release - Features and Performance (pdf)
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