Feliks Audio Echo Mk II 2024 - Black Metal and Dark Wood

This is so sweet and I am so proud to offer it. This is a Feliks Audio Echo MkII OTL headphone amp and pre-amp! Yes you read that right, it can both power cans and it can serve as a pre-amp in your home audiophile setup. And it's one of the very best, handmade in Poland and offering the holy grail of tube goodness-OTL performance. This unit has less than four hours on it and was my personal unit that I purchased as a gift in 2024 from an AD in NJ. Why the sale, I upgraded to something that had variable impedance so that I had a unit that was less can sensitive. Which brings me to it. This is not for all applications either as a can driver or as a pre or in a system that where it serves both purposes. This is a flea watt unit and it works best with high efficiency speakers and high impedance cans. So all you Utopia and Stellia fans should skip this one (just being honest) if you want the full lusciousness of those dreamy cans you sold you kidney for. This will drive them but they may be a bit rolled off. If you don't mind then go for it. This is also a great desktop unit. Just remember, tubes and paper, not a good combo. and yes even these little tubes will burn your skin off! All seriousness aside this unit is fantastic. It is in mint condition with no issues and factory fresh. My multiverse of cans is my loss and your gain. This is absolutely the one to have. It is magic with a Questyle QR1 in and out to a set of Sennheiser HD 650's. Pure bliss! I've included the specs so check it out and happy listening!

The Echo is an output transformer-less (OTL) headphone amplifier and preamplifier featuring  6N6P and 6N1P tubes. It is fully handmade and the headphone sweet spot is for medium to high impedance headphones (from 100 Ohms). It can also be used as a tube preamp for both tube and solid-state amplifiers.

Features

• Incredibly detailed presentation
• Very low noise levels and AC interference
• Broad frequency response, 15 Hz to 45 kHz +/- 3 dB
• Gold-plated ceramic tube sockets
• Input and output safeguards eliminating power on / off noises
• Wooden, solid oak side panels
• Custom-made stabilized toroidal transformer with electronic ripple suppression
  Automatic bias circuit, so no tube re-biasing needed 
• Preamp safe mode
• Extended 3-year warranty

Box contents

• Beautifully hand-crafted tube amp
• 1 pair of driver tubes
• 1 pair of power tubes
• AC cord
• User manual
• Warranty card

Specifications (2021)

Tube complement: 2 x 6N6P, 2 x 6N1P

Frequency response: 15 Hz - 45 Khz +/- 3 dB (300 Ohm)

Optimal headphone impedance: 80-600 Ohm

Inputs: 3 x RCA line

Input impedance: 100 kOhm

Power output: 380 mW

Headphone output: 6.3 mm