6G4 Super: based on ’60 Fender Brown Super
After discussing two Fender “tweed” amps, it’s a “brownface” this time. Recognizable by the brown control panel.
It’s the period between the Tweed and Blackface models: ’59 - ’63. Brown Fenders sound cleaner than the Tweed amp, but still warmer and dirtier than the blackface models. Like the Tweed amps, brownface amps are very collectible. More information.
According to Wikipedia, the Super originated as a renamed version of the Dual Professional, supposedly the world’s first twin-speaker guitar amp. Remember, this is the Super, not the Super Reverb which is a different amp.
And we've got a classic amp here, again. According to Vintage Guitar the sound of a Tweed Super "in the estimation of many a vintage-amp fan, is among the sweetest and most delectable of any amp ever made”. The Tweed-version of the Super (single channel, 30 watts) is the most sought-after version of the Fender Super and was Leo Fender’s personal favorite, according to Vintage Guitar. The ’57-’60s Fender Super occupies spot #12 on Vintage Guitar's list of the 25 most valuable guitar amps. The Fender Super is also very famous for its built-in vibrato, which in fact is a tremolo, sometimes called a "harmonic tremolo".
About the circuit numbers: in general the first number indicates the decennium (5 is ‘50s, 6 is ‘60s). The letter indicates the circuit revision, and the last number indicates the amp model (4 = Super).
The Super, modeled by Fractal Audio, has the 6G4 circuit, which puts out around 40 watts through two 6L6 tubes. Here are pictures of the insides of the 6G4.
It has two channels: Normal and Vibrato. The Fractal Audio model is based on the Vibrato channel, with these controls: Volume, Treble, Bass, Presence and Vibrato (the vibrato is not modeled). There’s no Middle tone control, so keep this at “5” in the model for authenticity. No Master Volume either, so keep the Master control in the model dimed.
Note that the range of most Fender models is 1 to 10, while the model controls range from 0 to 10. For the OCD-crowd, here's a translation table, created by forum member Barhrecords.
The Super provides two inputs per channel. Fractal Audio models of Fender amps are always based on the input with the highest input level. To get the equivalent of using the lower input, set Input Trim to 0.500.
The amp originally came with two Jensen 10” speakers (P10R, P10Q, Oxford 10K5). The modeled amp has two 12” speakers, captured in stock cab #22: 2x12 Brown Super M160.
A full collection of IRs from this amp can be purchased in Cab Pack 15, The American 2x12 Collection:http://shop.fractalaudio.com/Cab_Pack_15_The_American_2x12s_Collection_p/fas-801-0015.htm.
With the stock cab, and a strat or telecaster, there's not a lot of tweaking required IMHO. Amp controls at default, dial back Bass, Input Drive at 4, and you have a great vintage Fender tone. Increase Input Drive to 6 for a little more bite.
If you prefer 10” speakers, try stock cab #089: 2x10 Super Tweed Mix, for a totally different sound. Or stock cab #032 (4x10 Bassguy).
A selection of vintage Fender Super videos on YouTube: