Dating fender tube amps by serial number

Summary The 35w blackface Vibrolux Reverb (VR) is the smallest member of the blackface/silverface 6L6 Fender amp family.

Its strength lies in the sweetness and early breakup caused by the smaller transformers than the Super Reverb, Vibroverb and Pro Reverb.

A stock VR offers a wide range of tonal possibilities and can be both big and small with just a few minor tricks.

Out of the box the silverfaces and blackfaces will fit many occasions and are therefore not widely discussed in terms of serious mods like, for instance, the Princeton Reverb.

We cut a new baffle and mounted 2×4 speaker screws for the 12″ and 10″ speakers.

You can hear the sparkling tones coming from the Jensen C10q supported by the strong lower mids from the Weber.The Vibrolux is quite similar to the Pro Reverb 2×12″ except for the smaller speakers, output transformer and power transformer. 10″s provide a more scooped, responsive, punchy and sparkling sound than 12 inch speakers.The 12″s are fuller, warmer, looser in the low end while having more mids and a more three-dimensional tonal spread.The amp is not very heavy compared to the 2×12″ or 4×10″ amps.We are therefore not that afraid of installing heavy speakers in the VR if we want big magnets with lots of power.

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