Your secret weapon to achieve the tones heard on the Beatles' Revolver album!
The Aclam Dr Robert is based on the Normal channel of the mythical Vox UL730.


The Vox UL700 amp series were the secret weapon used by The Beatles to achieve the unique guitar tones all over the Revolver album.
Only a small number of UL730 units survived: attaining the title of being the most collectable Vox amps, with prohibitive collector pricing.

To accurately replica the amp's soul and character, Aclam Guitars traced the circuit board and measured each component's value in their original UL730.
One of the keys of the UL730's tone is its “Middle” control (which is one of the most interesting mid-range EQ ever found in an amp).
By turning it counterclockwise, a great amount of mid-frequencies will be subtracted: creating a scooped sound.
On the other hand, when it's turned clockwise, it will bring out all the mids and the signal will build up in gain.
By tailoring the “Middle” knob you can control both midrange and saturation.

Jump around to specific parts of the demo:
00:00 - And Your Bird Can Sing.
02:15 - Clean tone of Two-Rock Classic Reverb Signature.
02:22 - Checking out the Volume control.
03:17 - Checking out the Gain knob.
04:38 - Checking out the Mids control.
06:13 - Kicking in the Mach Schau! side of the pedal.
07:21 - She Said She Said, both parts in and out of a full band context.
07:58 - Checking out the range of the Gain and Mids knobs in the Mach Schau! mode.
09:44 - Running a whole variety of different guitars through the Dr. Robert.
11:31 - Zeppelin II tones (Les Paul).
12:26 - Clean and more traditional tones (Strat).

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