This is the Legendarium 2A3 Single-Ended Triode Amplifier, fully assembled and tested, ready to plug in and listen! Works with any 8 ohm speakers and line-level input source. If you intend to use this with a turntable, you will need your own phono stage pre-amplifier. Amplifiers are made to order and typically take about 2-3 weeks for building and testing prior to shipping.