Dr. Robert pedal is the most accurate replica of the iconic VOX UL730 amp. Made famous by The Beatles as they used it on Revolver & Sgt. Pepper's albums. Also used by The Rolling Stones, Jimmy Page or Joy Division... Only 100 units of this amp were produced and most of them were destroyed. Klaus Voormann (Revolver's cover album designer) has created the artwork for the Dr. Robert pedal. 

In late 2025, ACLAM upgraded the Dr. Robert by adding external controls for the Bass/Treble EQ and the Mach Schau! Gain. On top of that, the new global Lo/Hi Gain mode makes the pedal more versatile than ever.

DR. ROBERT V3 MAIN FEATURES

• Replica of the VOX UL730 S/N: 3042

• Artwork made by Klaus Voormann

• Mach Schau! function, now with external Gain Control

• New LO/HI Gain Modes

• Dr. Robert works for guitar & bass players

• Same 3 Band Equalizer, now with external Treble and Bass controls

• High end components

• True bypass relay switching

FEATURES

Weight: 415g. (0.91 lbs)

imensions: 13.6 x 8.7 x 5.5cm (5.4” x 3.4” x 2.2”) with knobs

Effect: Overdrive

Power: 9V DC Center Negative

Current Draw: ≈35 mA

Bypass: True bypass

Please note the bulk of what we sell is MADE IN THE USA and as a result is not subject to tariffs etc. With respect to items that are not Made in the USA, we cover any tariffs on our end.