Bottlehead BeePre 300B Preamplifier




Item History & Price

Information:
Reference Number: Avaluer:7044485Model: BeePre 300B Preamplifier
Custom Bundle: NoModified Item: No
Type: Tube PreampCountry/Region of Manufacture: United States
Brand: Bottlehead
Original Description:
BeePre 300B PreamplifierThis limited tube choices to a very few. We came up with some really nice sounding preamps based on the 6AS7/6080, the 7233 and the 6EW7. One day when listening to them the conversation moved to how amazingly good our little Quickie directly heated triode preamp sounded, and the quest began for a great DHT that would fit our other requirements. PJ reasoned that a 300B run at the right operating point could have a nice low output impedance, even lower than F...oreplay III. And so it was decided to build a prototype 300B preamp. To cut to the chase, the result was the best we had heard. Several Bottleheads stopped by over a few months to give the prototype a listen and response was a lot of “Wow!” type comments.Now getting a 300B to operate happily as a preamp tube is no mean feat. It takes a very quiet and well behaved high voltage power supply and a super quiet filament supply. The 300B is so dadgummed linear that every other part of the preamp needs to be of a very high sonic caliber too. We started with a completely separate power supply for each channel. We added our tried and true active loaded hybrid shunt regulator, one for each channel and each using an EL84. And we used our C4S active load on each 300B plate as well.



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