The Lightkeeper is an all-tube preamp based on the clean channel of the Dumble Overdrive Special "High Plate" design.
This preamp is all about bright clarity and articulation. It's got a vintage Fender vibe but with tighter bass and more prominent mids, thanks to the Dumble-refined tone stack, which takes a classic Fender circuit to the next level.
The Lightkeeper makes a great pedal platform and delivers the ‘tube feel’ to any ampless setup. It is an excellent choice for those running it directly to a power amp or fx-return. Connecting the Lightkeeper to the front of the amp is also an option, but the result will significantly depend on the internal preamp of your amplifier.

Product Page

Review by reddit /guitarpedals

Official Product Video

Demo by Andrew Cheng

Review by The Gear Page

Manual

Lightkeeper V1

MAGNEZIUM™ is a two-channel preamp inspired by the sound of the highly-coveted "Magna" Super 59 amp.

MAGNEZIUM™ features two fully independent channels - for low and high gain - and has an option of external switching between them via the 1/8" side-mounted jack.

It combines Fender's "tearing silk" and Marshall's "clank" overdrive tones in one pedal, giving you the best of both worlds.

The low-gain channel delivers a rich bottom end with Bassman-style overdrive, while the high-gain channel adds a Marshall-style gain stage at the front of the circuit. Perfect for classic Southern rock sounds.Cranking the gain past noon will take you firmly into harmonically rich ZZ Top-riffing territory.

Review by delicious audio

Demo by Joe Perkins

Magnezium

The Sunkeeper is a dual channel, all-tube preamp and overdrive pedal, designed to capture the classic Orange sound of ages.

It offers up all the massive, fuzzy gain that has kept us headbanging throughout recent decades. But dial it back and you have classic '70s punch; edge-of-breakup grit; and dynamic British cleans to get your power ballads really sparkling.

With two 12AX7 tubes onboard running at 250VDC (upped internally from a 12VDC supply), the Sunkeeper has all the touch sensitivity and subtle compression characteristics that you can only achieve by getting tubes nice and hot.

There’s ample level and brightness to drive a power amp directly or feed your IR cab
sim. But to run it straight into an amp’s front end, simply flip the toggle underneath the output jack to restrain the beast and make it play nicely with your existing preamp.

If you like your riffs with a good dose of vintage Fleetwood crunch; some zenith Sabbath gnarl; modern-day Pagey vibes; or all the stoner-rock filth you can handle…whatever flavor of orange you’re into, the Sunkeeper has got you covered.

Demo by Buddy Blues

Demo by Demos in the Dark

Sunkeeper

The Lightkeeper is an all-tube preamp based on the clean channel of the Dumble Overdrive Special "High Plate" design. 
This preamp is all about bright clarity and articulation. It's got a vintage Fender vibe but with tighter bass and more prominent mids, thanks to the Dumble-refined tone stack, which takes a classic Fender circuit to the next level.

The Lightkeeper makes a great pedal platform and delivers the ‘tube feel’ to any ampless setup. It is an excellent choice for those running it directly to a power amp or fx-return. Connecting the Lightkeeper to the front of the amp is also an option, but the result will significantly depend on the internal preamp of your amplifier.

The three-way Deep and Boost toggle switches offer a wide range of tone tweaking. When set in the middle position, they can also be controlled by the on-board or external footswitch.

The Lightkeeper operates on a standard 12VDC voltage, which is boosted inside the pedal up to 280VDC for optimal performance of the 12AX7 tube.

Demo by Ambient Endeavors

Review by Premier Guitar

Review by guitar pedal X

Lightkeeper V2

The Eggnog is a single-channel tube overdrive and preamp pedal going back to the small, yellow-patterned combination amplifiers made in Fullerton in the 1950s. Based around a 12AX7 tube running at high voltage (250VDC) to accurately capture the feel and breakup characteristics of a low-powered Tweed, the overtly-American preamp circuitry can transform any clean amplifier into a raspy box of vintage Fendery goodness.
The tube is pushed by an always-on MOSFET gain stage, giving your guitar a helping hand in nudging it towards the spongy, saggy, character we know and love in those old amps once they’re breaking a sweat. But if you’re in the mood for a little extra juice, stepping on the second footswitch activates the Boost level knob, giving you control over how hard the tube is being pushed.
If you’re a fan of the Southern blues-rock of ZZ Top; the boxy, honky breakup of Joe Walsh in his prime; Keef’s raunchy rock & roll; the screaming lead tones of Mr. Bonamassa; or (at the extremes) the “excitable” low-end of Neil Young…the Eggnog will deliver those syrupy, original American tones in spades.

Demo by  Jamie Morrissey

Demo by intheblues

Eggnogg

Eggnogg by Tubesteader

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