The real McCoy! The SR-71 Blackbird™ “Tube Tone Engine” is a full-featured vacuum tube preamp, in a pedal. Designed for tone & versatility, the  SR-71 will add clean/drive/distortion channels to vintage/boutique guitar amps, or work as a stand-alone direct recording tube preamplifier. The clean channel possesses a beautifully pure, “glassy” character, and the drive channel is tuned to deliver a rich, full-bodied, devastatingly smooth overdrive.

“If distortion can be described as ‘beautiful’, this is it.” — The ToneQuest Report

• Two Channels: The Blackbird’s clean channel is identical to Leo Fender’s “Blackface” circuit. The overdrive channel is a “hot-rodded” 4-stage tube clipping circuit—think “Dumble”, but with more mojo!
• Classic Tone Stacks: Dedicated “BASS”, “MIDDLE” and “TREBLE” controls for each channel—the same passive tonestacks as in Fender’s “Blackface” amps.
• Tube Buffered Output: Connects to the input of a guitar amplifier. This output is buffered by a low impedance tube cathode follower stage with up to +10dBu of gain. Low impedance ensures zero tone loss when driving long cable runs.
• Transformer Balanced Out: Professional 600Ω balanced output for direct recording. Connects to mixing desk, PC sound capture card or power amplifier.  Adds +6dBu gain.
• All Tube: The Blackbird is an entire vacuum tube preamp in a pedal. The signal path is 100% analogue and the tubes operate at real amp plate voltages. Further, D.C. powered tube heaters ensure lowest possible noise.
• Audiophile Components: Absolutely no skimping on component quality. The Blackbird’s audio signal path uses polyester capacitors and instrumentation grade metal-film resistors throughout.
• Compact: The Blackbird is small enough to fit in a gig bag with your cables, tuner and other tools of the trade. And, it makes a great backup as a spare rig—don’t leave home (or be at home) without one!
• Tough: The electronics are housed in a tough, powder-coated aluminium alloy enclosure with a stoved epoxy silkscreen. Built for the road and to withstand the most punishing touring schedule.
• True Bypass Switching: Effectrode’s unique “anti-pop” footswitching circuitry utilises a sealed, gold-contact audio relay, rather than a clunky mechanical footswitch.
• “Dakaware” Knobs: Authentic Bakelite Dakaware Chicago 1510 knobs custom made in the U.S.A.
• Includes 12VDC 1.5A Wall-Wart: High quality low-noise switched mode power supply operating from 100-240VAC mains input. Supplied with various adapter plugs to facilitate connection to mains outlets in other countries. Compatible with all Effectrode pedals.