The digital front end in my system room begins with an optical input from the server room into a Sonore Signature Rendu SE Optical.  USB connects the Signature Rendu to a Singxer DDC, which then outputs a digital signal via S/PDIF, AES/EBU, and Toslink to the DAC of my choice, which may include a Mojo Audio Mystique Evo Pro a non-oversampling, direct-coupled, R-2R DAC built around two Analog Devices monolithic AD1862 R-2R ladder DAC chips (special Z-version); a Mojo Audio Mystique X SE (with nano-crystal chokes and Z-chips), or an SMc Audio DAC-2 GT-24, that uses the CS4328 chip by Crystal Semiconductor and other tasty part upgrades for a tonally dense and very enjoyable sound.

The preamp is really two units, a Khozmo dual mono volume control and an SMc Audio TLC-1 Signature Edition preamp that was converted to a unity-gain buffer to allow remote volume control and display functions to be handled by the Khozmo unit.

A pair of McCormack Audio DNA-1 amplifiers converted to monoblocks and upgraded by SMc Audio (i.e., Steve McCormack) to the highest upgrade level offered by Steve in the spring of 2020.  

The LR5s were the precursor to Aerial Acoustic's 20T flagship. The dual 9-inch sealed bass reflex design provides detailed bass with a nice roll-off response at about about 40Hz.  A smooth, relaxed, musical, yet punchy sounding speaker, that displays just enough detail without being not overly analytical and can be very hard hitting indeed when properly powered. Michael Kelly with Aerial Acoustics told me, "the LR5s sound about as good as it gets above 40 Hz".

Dual SW12 subs offer outstanding bass response and a level of adjustability that allows me to seamlessly integrate them with the LR5s to provide smooth, deep bass response in the room.  Supported on dedicated Sound Anchor stands and decoupled from the floor using Sound Addicted Silicone SubCone Isolation feet.
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