General Information
Schiit Audio’s first limited-edition amplifier: the 10-tube Folkvangr. Folkvangr is a DC-coupled, output transformer-less (OTL) and output capacitor-less (OCL) headphone amp.
Folkvangr uses 2 matched 6n1p for input and voltage gain and 8 6n6p tubes for output.
It’s said to dissipate 100W to produce about 1W of output. @Jason Stoddard does not explain this product in his unique style:
“So, how do you explain a 10-tube headphone amp that, gets super hot, measures terribly, connects your headphones directly to the tubes, and is launching at a time when tubes, well, are still kinda stinky to get ahold of? In short: you don’t.”
This passion project is rather interesting. It answers the designer’s question of “what do tubes really sound like?”. It introduces a hitherto unseen design element for Schiit (the recessed top). It is single-ended only, where most of the company’s top range insists on supporting balanced i/o. It has an Aegir-like on/off switch. There are some rather impressive numbers inside (400VA transformer, discrete-regulated high-voltage rails at +/-100V and +200V, >10,000uF of filter capacitance). It also has the necessary protections to survive tubes gone wild and another very unique feature: an 8x impedance multiplier switch so low-impedance headphones play better with the amplifier.
Folkvangr is limited to a 250-piece run. It’s likely more black units than silver were produced given customer preferences discussed in meets, interviews, and such. It was priced at $1799/$1849 including tubes. Folkvangr was introduced in June 2022 and sold out in October of the same year.
Info and a lot of text lifted from schiit.com.

Folkvangr uses 2 matched 6n1p for input and voltage gain and 8 6n6p tubes for output.

It’s said to dissipate 100W to produce about 1W of output. @Jason Stoddard does not explain this product in his unique style:
“So, how do you explain a 10-tube headphone amp that, gets super hot, measures terribly, connects your headphones directly to the tubes, and is launching at a time when tubes, well, are still kinda stinky to get ahold of? In short: you don’t.”

This passion project is rather interesting. It answers the designer’s question of “what do tubes really sound like?”. It introduces a hitherto unseen design element for Schiit (the recessed top). It is single-ended only, where most of the company’s top range insists on supporting balanced i/o. It has an Aegir-like on/off switch. There are some rather impressive numbers inside (400VA transformer, discrete-regulated high-voltage rails at +/-100V and +200V, >10,000uF of filter capacitance). It also has the necessary protections to survive tubes gone wild and another very unique feature: an 8x impedance multiplier switch so low-impedance headphones play better with the amplifier.

Folkvangr is limited to a 250-piece run. It’s likely more black units than silver were produced given customer preferences discussed in meets, interviews, and such. It was priced at $1799/$1849 including tubes. Folkvangr was introduced in June 2022 and sold out in October of the same year.
Info and a lot of text lifted from schiit.com.