Gyraf G9 Tube Amp

March 14, 2023
Gyraf G9 Tube Amp MrCaks

Mr. Caks and I met up and built 4 Gyraf G9 Tube Preamps. Design by Jakob Erland – Gyraf Audio.

Gyraf G9 Tube Amp Caks

Quite messy but that is how it has to be!

Inside Gyraf G9 Tube Amp

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.

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