TOPPING A90 Discrete Balanced Headphone Amplifier & Pre-amplifier

 Features:->Fully-Discrete NF modules.>Headphone amp and Pre-AMP application.>4-Pin XLR+4.4mm Balanced+6.35mm SE Output.>Precise Relay volume control.>Two-level gain settings.>Superb performance with Ultra-low THD+N 0.000055%.>Excellent dynamic range of 145dB.>Tremendously powerful(Output rating 9800mWx2).>Extendable Via EXT90.Packing an ultimate performance with fully-discrete NF modules the all-new Topping A90 Discrete headphone amplifier is here. Topping has used fully discrete components to redesign its famous NF(Nested Feedback Composite Amplifier) module. The A90 Discrete has got four built-in NF discrete modules each of them featuring 39 transistors building up a fully balanced structure. With this discrete component circuitry the A90 Discrete packs a tremendously powerful output producing about 9800mW of clean noise-free output ratings at 16Ω of load. Topping A90 Discrete works flawlessly with EXT90 extender adding three XLR connections and one R conn