EXPIRED   For Sale Schiit Audio Folkvangr Headphone Amplifier

Further Information

Schiit Audio Folkvangr Headphone Amplifier - As Traded

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Pick up and audition available in Leichhardt, NSW. Please message to book an appointment.

Condition: Great, small scratches on front only (see photos)

Includes: Power cable only (No box)

SN: 350018

Overview

Curious to hear how your headphones perform when connected directly to tubes? Meet Folkvangr—our bold, limited-edition, 10-tube OTL/OCL amp with an integrated impedance multiplier. If you're heat-tolerant and a little adventurous, this might just be your dream amp.

Direct connection, nothing in-between
Folkvangr removes both output transformers and coupling capacitors, connecting your headphones directly to eight 6N6P output tubes. An advanced 8-servo DC stabilization system with DC sensing and relay protection keeps your headphones safe while delivering unparalleled tube sound.

Transform low impedance into high
Tubes struggle with low impedance loads, so Folkvangr includes a switchable impedance multiplier. Activate it, and your 32-ohm headphones will behave like 256 ohms, allowing you to use a broader range of headphones with exceptional results.

Flexibility and customization
Folkvangr lets you roll 6N1P input tubes for alternatives like 6922 or ECC88, offering endless options for customization. Switch between low and high gain, toggle between two inputs, or connect to the preamp outputs to build a complete system.

Made in California, built to last
The majority of Folkvangr's production cost—chassis, boards, transformers, and assembly—supports US-based manufacturers. The chassis is made locally, PCBs are sourced nearby, and the transformers are crafted in California, reflecting our commitment to high-quality, domestic production.

Specification 

Impedance Multiplier: Maximum Power, 32 ohms 300mW RMS per channel at less than 10% THD; Maximum Power, 300 ohms 1.2W RMS per channel at less than 10% THD
With Impedance Multiplier: Maximum Power, 32 ohms 1.4W RMS per channel at less than 10% THD; Maximum Power, 300 ohms 1.5W RMS per channel at less than 10% THD
Frequency Response: 20Hz-20kHz, ±0.5dB (worst case, high gain, 32 ohms, impedance multiplier off)
THD: <0.5%, 20Hz-20kHz, at 1V RMS, low gain, 300 ohms
IMD: <0.4%, CCIF at 1V RMS, low gain, 300 ohms
SNR: >100dB, unweighted, referenced to 1V RMS, low gain; >90dB, unweighted, referenced to 1V RMS, high gain
Crosstalk: <-60dB, 20Hz-20kHz
Output Impedance: 18 ohms (high gain), 7 ohms (low gain), 8/3.5 ohms with impedance multiplier high/low gain
Input Impedance: 100K ohms
Gain: 6.5 (16.3dB) or 1.5 (3.5dB), via front switch
Topology: Output transformerless (OTL) and output capacitorless (OCL) Class-A triode headphone amplifier with White cathode follower (WCF) output; switchable gain and 8x impedance multiplier
Protection: Analog computer-style oversight for high DC with turn-on delay and muting relay
Power Supply: 400VA transformer with secondaries for discrete regulated 200V and ±100V supplies; secondaries for regulated ±12V oversight and impedance multiplier supplies; 6.3VAC at 7.2A for tube heaters; more than 10,000uF filter capacitance on HV supplies
Power Consumption: 100W
Size: 16 x 8 x 2.875” (total height with tubes 4.5")
Weight: 6.8kg