The Echo MK II is an output transformer-less (OTL) headphone amplifier and preamplifier featuring stock Russian 6N6P and 6N1P tubes. Despite being Feliks’ entry-level amplifier, the Echo is no slouch when it comes to presenting a highly musical and well-extended sound. The Echo is slightly warm, smooth, intimate, and laid-back, flattering a wide range of headphones.These qualities, in addition to incredible build quality and brilliant engineering, amount to an amplifier that performs far beyond its class. It is fully handmade, and the headphone sweet spot is for medium to high impedance headphones (from 100 ?.) It can also be used as a tube preamp for both tube and solid-state amplifiers.ECHO MK II FEATURESBroad frequency responseGold-plated ceramic tube sockets, and custom-made stabilized toroidal transformer with electronic ripple suppressionInput and output safeguards eliminating power on / off noisesWooden, walnut side panelsAutomatic bias circuit (no tube re-biasing needed)Preamp safe mode

This Teac EQA-10 mkii graphic spectrum equalizer is a great addition to any home audio setup. With its stereo L/R RCA audio inputs and RCA audio outputs, it offers two channels of high-quality audio processing. The black color and sleek design make it a stylish piece of equipment for any home. Made in Japan, this equalizer is built with top-quality materials and is designed to last. Its number of inputs and outputs, as well as its two channels, provide ample opportunity to enhance your audio experience. Whether youre a music enthusiast or just someone who appreciates high-quality sound, this Teac EQA-10 mkii is a must-have.