Spirit 300b MK2

Monoblock Amplifier (Built to order)

The pinnacle of 300b tube amplification.


“Klaus Voorman’s bass in “Well Well Well” sounded monstrously good”

~ Art Dudley – Stereophile Magazine

“I’m one of those listeners who believe there exist, among amplifiers, many different paths to glory—yet who has a special place in his heart for low-power, push-pull tube amps, especially monoblocks.

A number of such models have impressed me over the years, and the realistically bold-sounding Raven Spirit Mk2 Monoblock has earned its place among them.

Hand-Made in America

Hand-wired point to point and therefore 100% upgradeable forever. The Raven Audio Elite Series is made with the highest quality parts like Raven Capacitors, V-Cap, Mundorf, MIT-RTX capacitors and Raven transformers allied with classic tubes like Telefunken, Valvo, Tung-Sol, Siemens, Amperex, Sylvania, RCA, Philips, GE, National, KenRad, and Tungsram.

Audiophile Connectors

All of our Elite Series has audiophile grade RCA connectors. They are made of 99.95 percent oxygen-free copper and are gold plated. Each heavy-duty connector is individually hand soldered to oxygen-free copper wire.

The speaker binding posts are also 99.95 percent oxygen-free copper with gold plating. They accept banana, spade, and bare wire as large as 8 gauge.

Proprietary audio/power transformers

One important aspect of driving speaker with authority from a 300b tube based amplifier is the power supply. Raven’s unique custom power supply and audio output transformers combine with the rest of the amp’s design to create a truly uniquely powerful 300b amplifier.

Proprietary Capacitors

Capacitors have a significant impact on the sound of an amplifier. On tube amplifiers they are critical. This is why we manufacture our own capacitors. They are a cost-no-object design and are born out of our Elite series amplifiers engineering efforts.

Build Quality

Build Quality

The Elite Series chassis are machined-from-solid-billet aerospace aluminum plates with solid-bronze corner posts. Construction is maintained with high-grade stainless-steel screws throughout. The adjustable chrome-plated stainless steel ball footers insulate and isolate the amplifiers and tubes for a better sonic response which is freer of conductive resonances, also good for avoiding scratches on your furniture.

Features and Specifications

Output 26 watts per amp
Frequency response 20Hz - 20kHz
Input terminals Balanced XLR and single-ended RCA
Speaker terminals: 4 and 8 ohm
Recommended speaker sensitivity 84dB and above
Dimensions W 11.5" x D 19.75" x H 9.5"
Weight 68lbs


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