Manley Neo Classic 300B Preamplifier

The Neo-Classic 300B preamplifier is the first and only preamp to feature the classic directly heated 300B Triodes. Manley Labs been designing the 300B into small power amps for many years and always had great respect for the smooth natural sound of this tube. However, a single 300B provides truly appropriate power and voltage swing for headphones and makes a remarkable line driver. Here is where the impedances are not too low and the power requirements are not too high: ideal for this kind of tube in a single-ended configuration. This was the genesis of a new preamp. Manley Labs combines the historic 300B with another classic, the large octal based 6SL7GT, for the input stage - all triodes running in pure Class A operation. To complement this 'retro' feel, vacuum tube rectification and regulation in the power supply along with plenty of capacity are employed. An additional (and innovative) ripple rejection circuit is then added to filter out power supply noise making this an incredibl