Up for sale is an upgraded Akitika GT-102 Z4. This is an ideal match for KEF LS50s or HE6 IMO. Works with a variety of others though. I've built several of these amps for others and the GT-102 has proven completely reliable and runs cool. I built two upgraded amps for myself personally last year. I think it's time to let this backup go as I've full faith in the long term reliability of the GT-102. I will sell one, as they are identical but I'll never sell the other. The one I am selling has roughly 30 hours of usage, the other one I've been using has been used extensively. It still performs and looks as it did when it was built. These are the best sounding speaker amps I've ever owned.

Sound quality is natural and detailed with a meaty presentation that engages and taps your toes. Upgrades include Muse amp board caps, Solid core OCC coil wiring, Cardas silver solder throughout, Pulsar CUii, V&H OCC hookup wiring, copper plugs, muse power caps, dampening and upgraded RCA and speaker posts.

Total cost of the amp/upgrades is almost double the cost just buying the stock GT-102 Z4 and having to build it yourself.