Tim Lefebvre

Tim Lefebvre is a bassist whose credits span David Bowie, the Tedeschi Trucks Band, Donny McCaslin, Wayne Krantz, Rudder, Knower, Bryan Adams, Whose Hat Is This? and The Black Crowes¹². He played bass on Bowie's album Blackstar³, and he is an Ampeg artist². He is also one of the few bassists with two pedals carrying his name: the 3 Leaf Audio Octabvre octaver and the Amptweaker Lefebvre TightFuzz fuzz pedal⁴⁵.

Signature pedals: the Octabvre and the TightFuzz

The Octabvre is an octaver pedal from 3 Leaf Audio, and it gets its name from Lefebvre himself. Bass Musician Magazine's reviewer Jake Wolf described him as "one of the true pioneers in the modern movement of electric bass players seeking righteously synthy bass tones"⁴. The pedal came out of a direct collaboration: 3 Leaf's Spencer Doren sent Lefebvre a few stomp boxes, they got along immediately, and a few months later Doren started working on the design for the Octabvre⁴. It was designed around his playing needs, including a second footswitch that cuts the dry signal so the octaver effect can be used more effectively⁴.

The circuit follows a known blueprint. Wolf's review states the Octabvre "is based on the tonal blueprint of older Boss OC-2 octave pedals, which are widely regarded as the high water mark for processed sub-octave synth bass goodness for electric bass"⁴. When Premier Guitar reviewed the Octabvre Mini in 2023, its reviewer noted that "the pedal's namesake often uses a Precision-style bass" and tested it with a Nash P-style strung with Thomastik flatwounds¹⁰.

His other signature pedal is the Amptweaker Lefebvre TightFuzz, a limited-edition fuzz introduced in 2019⁵¹¹. It starts from the Amptweaker Bass TightFuzz, keeping the Germanium output transistor for what Premier Guitar describes as a warm amp-like breakup, set for the 60's tone of the original⁵. Premier Guitar reports it is Lefebvre's "always on" tone, and that "sometimes he kicks the Fuzz all the way up for heavier tones"⁵. Guitar.com adds that having all the knobs at 12 o'clock recreates that always-on setting¹¹.

Effects made for bass: blend knobs and true bypass

Asked in a Guitar World roundtable about bass effects, Lefebvre's advice was to use effects tailor-made for bass, and specifically:

• Find pedals with blend knobs, so the clean bass tone is still represented
• Shoot for effects that are true bypass, to protect the low end¹

His own signature fuzz follows that thinking. The Lefebvre TightFuzz has special input circuitry that simulates a guitar, so active effects and pickups can be used in front of it, which Premier Guitar calls "very important for bass since many have onboard EQ"⁵. For players comparing options, this is the practical case for bass pedals over guitar designs: the clean low end stays in the signal and active basses behave predictably.

Lefebvre has also demonstrated this approach on camera for Dunlop, in a clip pairing the MXR Bass Octave Deluxe and Bass Envelope Filter to show the range of deep, expressive tones the two pedals produce together¹².

Preamp, D.I. and the rest of the board

Lefebvre's pedalboard carries the Jad Freer Audio CAPO Tim Lefebvre Edition, a preamp and D.I. box that packs three parallel preamps into a pedalboard-friendly format: a clean preamp and two high-dynamics saturators, with an active 3-band EQ plus DEEP and BITE buttons, a loop section that can alternate with the preamp signal in Tim mode or run in series in Original mode, and two D.I. outputs⁷. Jad Freer Audio describes it as "a powerful preamp and D.I. capable of studio-grade clean sounds, harmonic saturations and everything in between"⁷. Lefebvre was the very first CAPO preamp user, owning serial number 001⁷.

Beyond his signature pedals, JAM Pedals lists the Red Muck Bass among the pedals he uses⁸, and he rates the Empress Effects Bass ParaEq, an EQ pedal⁹:

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