NSH Duver Creampie TTSV10 xSTD

Description

Duver is an 2 x EL84 powered amp circuit that has, by accident - long story further down, quite a bit in common with the Trainwreck Liverpool. The amp has two voicings; "Wreck" and "Chime", where "Wreck" is the most gainy, mid forward and harmonically saturated, and "Chime" is a slightly cleaner, more full range sound. "Fat" indicates the fat-switch on, which toggles in a 22uF bypass cap on the first stage. "Bright" indicates the bright switch being on, which toggles in a 100pF cap across the volume pot. The load used for these captures is my new "Creampie" load box, which is based on a 70's Marshall 412 with T1220 Greenbacks in it. Pretty much any 75Hz greenback 412 IR should give acceptable results. These captures were done using Carmelo DL's TTSV10 input file and xSTD architecture, and are the closest I have come to capturing this amp accurately so far. Long story: When I first got into building amplifiers, I figured I'd start with something reasonably simple and low-ish voltage to limit the likelihood of death, fire and general disaster. So, I bought the 18W transformer kit from Mojotone and parts to make something with a pair of EL84's. I made several attempts and, while most of them sounded good, none of them sounded _right_. In one of Richard Kuehnel's books (I believe), he writes that amplifiers should be designed from the speaker/power section working back towards the input. So I did that, and going through a ridiculous number of iterations, ended up with something I felt sounded and felt _right_. Which turned out to be almost identical to a Trainwreck... FML, right? Still, it's a cool little amp, I learned a lot along the way, and, I mean, if your amp design ends up like a Trainwreck on accident, you're probably doing something right!

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