GC Audio Inherit Gyraf Audio GY 4.5 Cartridge

Overview by y Jakob Erland
"The preamp-as-a-cartridge is simply a great idea : In this day and age where you can have clean and neutral preamps virtually for free with your converters, you don’t want a big stack of the same type preamp - you want variety, something that matches the individual microphones and sources you are working with. The inherit cartridge system gives you exactly this - the ease of trying out a variety of flavors - the possibility of finding that sonic imprint that’s just right for what you have at hand.

The G9, which the G4.5 cartridge is based on, is an adaptation of the input circuit of the G36 tape recorder, that I have used and loved since I was a kid.. Update includes transformer balancing in and outputs, phantom power, switchable high-pass filter and switched gain settings”
Jakob Erland, Gyraf Audio

Specifications

• PAD: -28dB
• Input impedance: 1K Ohms.
• EIN (150 Ohms source @ max gain – 22/22Khz): Better than -124 dBu
• THD + N = 0.1% @ 1Khz
• Gain command with a 12 Steps Grayhill commutator: 1) 22dB, 2) 26dB, 3) 32dB,  4) 37dB, 5) 42dB, 6) 46dB, 7) 49dB, 8) 52dB, 9) 56dB, 10) 59dB, 11) 61dB, 12) 63dB (+/-1dB)

With Inherit Rack

• Digital gain command to keep the analog sensitive signal path in the cartridge
• Linear pot for Output Level
• 10 Segments VU meter, factory calibrated 0 dB VU: +4dBu
• Pre/Post toggle of the LED meter for the output level pot to obtain a very high gain without saturating the converter
• Low Cut: 80 Hz - 120 Hz – 12dB / octave slope
• 7 internal DC ultra-low noise linear power supplies
• PAD: -20dB
• +48V Phantom Power
• Phase invesion
• DI input impedance: 500K ohms

Gain VS frequency

THD + N VS frequency

Phase

Noixe @ Max Gain