Mr. Caks and I met up and built 4 Gyraf G9 Tube Preamps. Design by Jakob Erland – Gyraf Audio.
Quite messy but that is how it has to be!
Inside one of the finished G9 units.
Jakob Erland’s G9 tube preamp is a high-quality, dual-channel preamp that is designed to provide warm and rich tube tone to any audio signal. The G9 is a High Gain, transformer-coupled design that features a number of high-quality components, including a Lundahl LL1528 input transformer and LL5402 output transformer.
One of the key features of the G9 is its use of a ECC82 tube in the preamp stage. This tube is known for its warm and rich tone, and is often used in guitar amplifiers and other audio equipment that requires a vintage, analog sound. The G9 also features a solid-state output stage, which helps to provide additional headroom and clarity to the signal.
The G9 offers a number of useful features and controls, including a high-pass filter that can be switched between low and high, which can be useful for removing low-frequency rumble and other unwanted noise from the signal.
Other controls on the G9 include a polarity inversion switch, which can be used to correct phase issues between multiple audio sources.
Overall, the Jakob Erland G9 is a high-quality tube preamp that is designed to provide warm and rich tube tone to any audio signal. Its high-quality components and versatile controls make it a useful tool for recording engineers and musicians looking to add a vintage, analog sound to their recordings.